Search Results

Search found 17578 results on 704 pages for 'json framework'.

Page 315/704 | < Previous Page | 311 312 313 314 315 316 317 318 319 320 321 322  | Next Page >

• Resque Runtime Error at /workers: wrong number of arguments for 'exists' command

  - by Superflux

  I'm having a runtime errror when i'm looking at the "workers" tab on resque-web (localhost). Everything else works. Edit: when this error occurs, i also have some (3 or 4) unknown workers 'not working'. I think they are responsible for the error but i don't understand how they got here Can you help me on this ? Did i do something wrong ? Config: Resque 1.8.5 as a gem in a rails 2.3.8 app on Snow Leopard redis 1.0.7 / rack 1.1 / sinatra 1.0 / vegas 0.1.7 file: client.rb location: format_error_reply line: 558 BACKTRACE: * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in format_error_reply * 551. when DOLLAR then format_bulk_reply(line) 552. when ASTERISK then format_multi_bulk_reply(line) 553. else raise ProtocolError.new(reply_type) 554. end 555. end 556. 557. def format_error_reply(line) 558. raise "-" + line.strip 559. end 560. 561. def format_status_reply(line) 562. line.strip 563. end 564. 565. def format_integer_reply(line) * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in format_reply * 541. 542. def reconnect 543. disconnect && connect_to_server 544. end 545. 546. def format_reply(reply_type, line) 547. case reply_type 548. when MINUS then format_error_reply(line) 549. when PLUS then format_status_reply(line) 550. when COLON then format_integer_reply(line) 551. when DOLLAR then format_bulk_reply(line) 552. when ASTERISK then format_multi_bulk_reply(line) 553. else raise ProtocolError.new(reply_type) 554. end 555. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in read_reply * 478. disconnect 479. 480. raise Errno::EAGAIN, "Timeout reading from the socket" 481. end 482. 483. raise Errno::ECONNRESET, "Connection lost" unless reply_type 484. 485. format_reply(reply_type, @sock.gets) 486. end 487. 488. 489. if "".respond_to?(:bytesize) 490. def get_size(string) 491. string.bytesize 492. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in process_command * 448. return pipeline ? results : results[0] 449. end 450. 451. def process_command(command, argvv) 452. @sock.write(command) 453. argvv.map do |argv| 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe 461. @mutex.synchronize(&block) 462. else * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in map * 446. end 447. 448. return pipeline ? results : results[0] 449. end 450. 451. def process_command(command, argvv) 452. @sock.write(command) 453. argvv.map do |argv| 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in process_command * 446. end 447. 448. return pipeline ? results : results[0] 449. end 450. 451. def process_command(command, argvv) 452. @sock.write(command) 453. argvv.map do |argv| 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in raw_call_command * 435. @sock.write(command) 436. return true 437. end 438. # The normal command execution is reading and processing the reply. 439. results = maybe_lock do 440. begin 441. set_socket_timeout!(0) if requires_timeout_reset?(argvv[0][0].to_s) 442. process_command(command, argvv) 443. ensure 444. set_socket_timeout!(@timeout) if requires_timeout_reset?(argvv[0][0].to_s) 445. end 446. end 447. 448. return pipeline ? results : results[0] 449. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in synchronize * 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe 461. @mutex.synchronize(&block) 462. else 463. block.call 464. end 465. end 466. 467. def read_reply 468. * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in maybe_lock * 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe 461. @mutex.synchronize(&block) 462. else 463. block.call 464. end 465. end 466. 467. def read_reply 468. * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in raw_call_command * 432. end 433. # When in Pub/Sub mode we don't read replies synchronously. 434. if @pubsub 435. @sock.write(command) 436. return true 437. end 438. # The normal command execution is reading and processing the reply. 439. results = maybe_lock do 440. begin 441. set_socket_timeout!(0) if requires_timeout_reset?(argvv[0][0].to_s) 442. process_command(command, argvv) 443. ensure 444. set_socket_timeout!(@timeout) if requires_timeout_reset?(argvv[0][0].to_s) 445. end 446. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in call_command * 336. # try to reconnect just one time, otherwise let the error araise. 337. def call_command(argv) 338. log(argv.inspect, :debug) 339. 340. connect_to_server unless connected? 341. 342. begin 343. raw_call_command(argv.dup) 344. rescue Errno::ECONNRESET, Errno::EPIPE, Errno::ECONNABORTED 345. if reconnect 346. raw_call_command(argv.dup) 347. else 348. raise Errno::ECONNRESET 349. end 350. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in method_missing * 385. connect_to(@host, @port) 386. call_command([:auth, @password]) if @password 387. call_command([:select, @db]) if @db != 0 388. @sock 389. end 390. 391. def method_missing(*argv) 392. call_command(argv) 393. end 394. 395. def raw_call_command(argvp) 396. if argvp[0].is_a?(Array) 397. argvv = argvp 398. pipeline = true 399. else * /Library/Ruby/Gems/1.8/gems/redis-namespace-0.4.4/lib/redis/namespace.rb in send * 159. args = add_namespace(args) 160. args.push(last) if last 161. when :alternate 162. args = [ add_namespace(Hash[*args]) ] 163. end 164. 165. # Dispatch the command to Redis and store the result. 166. result = @redis.send(command, *args, &block) 167. 168. # Remove the namespace from results that are keys. 169. result = rem_namespace(result) if after == :all 170. 171. result 172. end 173. * /Library/Ruby/Gems/1.8/gems/redis-namespace-0.4.4/lib/redis/namespace.rb in method_missing * 159. args = add_namespace(args) 160. args.push(last) if last 161. when :alternate 162. args = [ add_namespace(Hash[*args]) ] 163. end 164. 165. # Dispatch the command to Redis and store the result. 166. result = @redis.send(command, *args, &block) 167. 168. # Remove the namespace from results that are keys. 169. result = rem_namespace(result) if after == :all 170. 171. result 172. end 173. * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/worker.rb in state * 416. def idle? 417. state == :idle 418. end 419. 420. # Returns a symbol representing the current worker state, 421. # which can be either :working or :idle 422. def state 423. redis.exists("worker:#{self}") ? :working : :idle 424. end 425. 426. # Is this worker the same as another worker? 427. def ==(other) 428. to_s == other.to_s 429. end 430. * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server/views/workers.erb in __tilt_a2112543c5200dbe0635da5124b47311 * 46. <tr> 47. <th>&nbsp;</th> 48. <th>Where</th> 49. <th>Queues</th> 50. <th>Processing</th> 51. </tr> 52. <% for worker in (workers = resque.workers.sort_by { |w| w.to_s }) %> 53. <tr class="<%=state = worker.state%>"> 54. <td class='icon'><img src="<%=u state %>.png" alt="<%= state %>" title="<%= state %>"></td> 55. 56. <% host, pid, queues = worker.to_s.split(':') %> 57. <td class='where'><a href="<%=u "workers/#{worker}"%>"><%= host %>:<%= pid %></a></td> 58. <td class='queues'><%= queues.split(',').map { |q| '<a class="queue-tag" href="' + u("/queues/#{q}") + '">' + q + '</a>'}.join('') %></td> 59. 60. <td class='process'> * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server/views/workers.erb in each * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server/views/workers.erb in __tilt_a2112543c5200dbe0635da5124b47311 * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/tilt.rb in send * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/tilt.rb in evaluate * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/tilt.rb in render * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in render * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in erb * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server.rb in show * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server.rb in GET /workers * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in instance_eval * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route_eval * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in catch * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in each * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in dispatch! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in instance_eval * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in invoke * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in catch * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in invoke * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/showexceptions.rb in call * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in synchronize * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/content_length.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/chunked.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb in process * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in process_client * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in each * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in process_client * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in run * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in initialize * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in new * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in run * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in initialize * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in new * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in run * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb in run * /Library/Ruby/Gems/1.8/gems/vegas-0.1.7/lib/vegas/runner.rb in run! * /Library/Ruby/Gems/1.8/gems/vegas-0.1.7/lib/vegas/runner.rb in start * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/bin/resque-web in new * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/bin/resque-web in nil * /usr/bin/resque-web in load

  Read the article

• How to find and fix performance problems in ORM powered applications

  - by FransBouma

  Once in a while we get requests about how to fix performance problems with our framework. As it comes down to following the same steps and looking into the same things every single time, I decided to write a blogpost about it instead, so more people can learn from this and solve performance problems in their O/R mapper powered applications. In some parts it's focused on LLBLGen Pro but it's also usable for other O/R mapping frameworks, as the vast majority of performance problems in O/R mapper powered applications are not specific for a certain O/R mapper framework. Too often, the developer looks at the wrong part of the application, trying to fix what isn't a problem in that part, and getting frustrated that 'things are so slow with <insert your favorite framework X here>'. I'm in the O/R mapper business for a long time now (almost 10 years, full time) and as it's a small world, we O/R mapper developers know almost all tricks to pull off by now: we all know what to do to make task ABC faster and what compromises (because there are almost always compromises) to deal with if we decide to make ABC faster that way. Some O/R mapper frameworks are faster in X, others in Y, but you can be sure the difference is mainly a result of a compromise some developers are willing to deal with and others aren't. That's why the O/R mapper frameworks on the market today are different in many ways, even though they all fetch and save entities from and to a database. I'm not suggesting there's no room for improvement in today's O/R mapper frameworks, there always is, but it's not a matter of 'the slowness of the application is caused by the O/R mapper' anymore. Perhaps query generation can be optimized a bit here, row materialization can be optimized a bit there, but it's mainly coming down to milliseconds. Still worth it if you're a framework developer, but it's not much compared to the time spend inside databases and in user code: if a complete fetch takes 40ms or 50ms (from call to entity object collection), it won't make a difference for your application as that 10ms difference won't be noticed. That's why it's very important to find the real locations of the problems so developers can fix them properly and don't get frustrated because their quest to get a fast, performing application failed. Performance tuning basics and rules Finding and fixing performance problems in any application is a strict procedure with four prescribed steps: isolate, analyze, interpret and fix, in that order. It's key that you don't skip a step nor make assumptions: these steps help you find the reason of a problem which seems to be there, and how to fix it or leave it as-is. Skipping a step, or when you assume things will be bad/slow without doing analysis will lead to the path of premature optimization and won't actually solve your problems, only create new ones. The most important rule of finding and fixing performance problems in software is that you have to understand what 'performance problem' actually means. Most developers will say "when a piece of software / code is slow, you have a performance problem". But is that actually the case? If I write a Linq query which will aggregate, group and sort 5 million rows from several tables to produce a resultset of 10 rows, it might take more than a couple of milliseconds before that resultset is ready to be consumed by other logic. If I solely look at the Linq query, the code consuming the resultset of the 10 rows and then look at the time it takes to complete the whole procedure, it will appear to me to be slow: all that time taken to produce and consume 10 rows? But if you look closer, if you analyze and interpret the situation, you'll see it does a tremendous amount of work, and in that light it might even be extremely fast. With every performance problem you encounter, always do realize that what you're trying to solve is perhaps not a technical problem at all, but a perception problem. The second most important rule you have to understand is based on the old saying "Penny wise, Pound Foolish": the part which takes e.g. 5% of the total time T for a given task isn't worth optimizing if you have another part which takes a much larger part of the total time T for that same given task. Optimizing parts which are relatively insignificant for the total time taken is not going to bring you better results overall, even if you totally optimize that part away. This is the core reason why analysis of the complete set of application parts which participate in a given task is key to being successful in solving performance problems: No analysis -> no problem -> no solution. One warning up front: hunting for performance will always include making compromises. Fast software can be made maintainable, but if you want to squeeze as much performance out of your software, you will inevitably be faced with the dilemma of compromising one or more from the group {readability, maintainability, features} for the extra performance you think you'll gain. It's then up to you to decide whether it's worth it. In almost all cases it's not. The reason for this is simple: the vast majority of performance problems can be solved by implementing the proper algorithms, the ones with proven Big O-characteristics so you know the performance you'll get plus you know the algorithm will work. The time taken by the algorithm implementing code is inevitable: you already implemented the best algorithm. You might find some optimizations on the technical level but in general these are minor. Let's look at the four steps to see how they guide us through the quest to find and fix performance problems. Isolate The first thing you need to do is to isolate the areas in your application which are assumed to be slow. For example, if your application is a web application and a given page is taking several seconds or even minutes to load, it's a good candidate to check out. It's important to start with the isolate step because it allows you to focus on a single code path per area with a clear begin and end and ignore the rest. The rest of the steps are taken per identified problematic area. Keep in mind that isolation focuses on tasks in an application, not code snippets. A task is something that's started in your application by either another task or the user, or another program, and has a beginning and an end. You can see a task as a piece of functionality offered by your application.  Analyze Once you've determined the problem areas, you have to perform analysis on the code paths of each area, to see where the performance problems occur and which areas are not the problem. This is a multi-layered effort: an application which uses an O/R mapper typically consists of multiple parts: there's likely some kind of interface (web, webservice, windows etc.), a part which controls the interface and business logic, the O/R mapper part and the RDBMS, all connected with either a network or inter-process connections provided by the OS or other means. Each of these parts, including the connectivity plumbing, eat up a part of the total time it takes to complete a task, e.g. load a webpage with all orders of a given customer X. To understand which parts participate in the task / area we're investigating and how much they contribute to the total time taken to complete the task, analysis of each participating task is essential. Start with the code you wrote which starts the task, analyze the code and track the path it follows through your application. What does the code do along the way, verify whether it's correct or not. Analyze whether you have implemented the right algorithms in your code for this particular area. Remember we're looking at one area at a time, which means we're ignoring all other code paths, just the code path of the current problematic area, from begin to end and back. Don't dig in and start optimizing at the code level just yet. We're just analyzing. If your analysis reveals big architectural stupidity, it's perhaps a good idea to rethink the architecture at this point. For the rest, we're analyzing which means we collect data about what could be wrong, for each participating part of the complete application. Reviewing the code you wrote is a good tool to get deeper understanding of what is going on for a given task but ultimately it lacks precision and overview what really happens: humans aren't good code interpreters, computers are. We therefore need to utilize tools to get deeper understanding about which parts contribute how much time to the total task, triggered by which other parts and for example how many times are they called. There are two different kind of tools which are necessary: .NET profilers and O/R mapper / RDBMS profilers. .NET profiling .NET profilers (e.g. dotTrace by JetBrains or Ants by Red Gate software) show exactly which pieces of code are called, how many times they're called, and the time it took to run that piece of code, at the method level and sometimes even at the line level. The .NET profilers are essential tools for understanding whether the time taken to complete a given task / area in your application is consumed by .NET code, where exactly in your code, the path to that code, how many times that code was called by other code and thus reveals where hotspots are located: the areas where a solution can be found. Importantly, they also reveal which areas can be left alone: remember our penny wise pound foolish saying: if a profiler reveals that a group of methods are fast, or don't contribute much to the total time taken for a given task, ignore them. Even if the code in them is perhaps complex and looks like a candidate for optimization: you can work all day on that, it won't matter.  As we're focusing on a single area of the application, it's best to start profiling right before you actually activate the task/area. Most .NET profilers support this by starting the application without starting the profiling procedure just yet. You navigate to the particular part which is slow, start profiling in the profiler, in your application you perform the actions which are considered slow, and afterwards you get a snapshot in the profiler. The snapshot contains the data collected by the profiler during the slow action, so most data is produced by code in the area to investigate. This is important, because it allows you to stay focused on a single area. O/R mapper and RDBMS profiling .NET profilers give you a good insight in the .NET side of things, but not in the RDBMS side of the application. As this article is about O/R mapper powered applications, we're also looking at databases, and the software making it possible to consume the database in your application: the O/R mapper. To understand which parts of the O/R mapper and database participate how much to the total time taken for task T, we need different tools. There are two kind of tools focusing on O/R mappers and database performance profiling: O/R mapper profilers and RDBMS profilers. For O/R mapper profilers, you can look at LLBLGen Prof by hibernating rhinos or the Linq to Sql/LLBLGen Pro profiler by Huagati. Hibernating rhinos also have profilers for other O/R mappers like NHibernate (NHProf) and Entity Framework (EFProf) and work the same as LLBLGen Prof. For RDBMS profilers, you have to look whether the RDBMS vendor has a profiler. For example for SQL Server, the profiler is shipped with SQL Server, for Oracle it's build into the RDBMS, however there are also 3rd party tools. Which tool you're using isn't really important, what's important is that you get insight in which queries are executed during the task / area we're currently focused on and how long they took. Here, the O/R mapper profilers have an advantage as they collect the time it took to execute the query from the application's perspective so they also collect the time it took to transport data across the network. This is important because a query which returns a massive resultset or a resultset with large blob/clob/ntext/image fields takes more time to get transported across the network than a small resultset and a database profiler doesn't take this into account most of the time. Another tool to use in this case, which is more low level and not all O/R mappers support it (though LLBLGen Pro and NHibernate as well do) is tracing: most O/R mappers offer some form of tracing or logging system which you can use to collect the SQL generated and executed and often also other activity behind the scenes. While tracing can produce a tremendous amount of data in some cases, it also gives insight in what's going on. Interpret After we've completed the analysis step it's time to look at the data we've collected. We've done code reviews to see whether we've done anything stupid and which parts actually take place and if the proper algorithms have been implemented. We've done .NET profiling to see which parts are choke points and how much time they contribute to the total time taken to complete the task we're investigating. We've performed O/R mapper profiling and RDBMS profiling to see which queries were executed during the task, how many queries were generated and executed and how long they took to complete, including network transportation. All this data reveals two things: which parts are big contributors to the total time taken and which parts are irrelevant. Both aspects are very important. The parts which are irrelevant (i.e. don't contribute significantly to the total time taken) can be ignored from now on, we won't look at them. The parts which contribute a lot to the total time taken are important to look at. We now have to first look at the .NET profiler results, to see whether the time taken is consumed in our own code, in .NET framework code, in the O/R mapper itself or somewhere else. For example if most of the time is consumed by DbCommand.ExecuteReader, the time it took to complete the task is depending on the time the data is fetched from the database. If there was just 1 query executed, according to tracing or O/R mapper profilers / RDBMS profilers, check whether that query is optimal, uses indexes or has to deal with a lot of data. Interpret means that you follow the path from begin to end through the data collected and determine where, along the path, the most time is contributed. It also means that you have to check whether this was expected or is totally unexpected. My previous example of the 10 row resultset of a query which groups millions of rows will likely reveal that a long time is spend inside the database and almost no time is spend in the .NET code, meaning the RDBMS part contributes the most to the total time taken, the rest is compared to that time, irrelevant. Considering the vastness of the source data set, it's expected this will take some time. However, does it need tweaking? Perhaps all possible tweaks are already in place. In the interpret step you then have to decide that further action in this area is necessary or not, based on what the analysis results show: if the analysis results were unexpected and in the area where the most time is contributed to the total time taken is room for improvement, action should be taken. If not, you can only accept the situation and move on. In all cases, document your decision together with the analysis you've done. If you decide that the perceived performance problem is actually expected due to the nature of the task performed, it's essential that in the future when someone else looks at the application and starts asking questions you can answer them properly and new analysis is only necessary if situations changed. Fix After interpreting the analysis results you've concluded that some areas need adjustment. This is the fix step: you're actively correcting the performance problem with proper action targeted at the real cause. In many cases related to O/R mapper powered applications it means you'll use different features of the O/R mapper to achieve the same goal, or apply optimizations at the RDBMS level. It could also mean you apply caching inside your application (compromise memory consumption over performance) to avoid unnecessary re-querying data and re-consuming the results. After applying a change, it's key you re-do the analysis and interpretation steps: compare the results and expectations with what you had before, to see whether your actions had any effect or whether it moved the problem to a different part of the application. Don't fall into the trap to do partly analysis: do the full analysis again: .NET profiling and O/R mapper / RDBMS profiling. It might very well be that the changes you've made make one part faster but another part significantly slower, in such a way that the overall problem hasn't changed at all. Performance tuning is dealing with compromises and making choices: to use one feature over the other, to accept a higher memory footprint, to go away from the strict-OO path and execute queries directly onto the RDBMS, these are choices and compromises which will cross your path if you want to fix performance problems with respect to O/R mappers or data-access and databases in general. In most cases it's not a big issue: alternatives are often good choices too and the compromises aren't that hard to deal with. What is important is that you document why you made a choice, a compromise: which analysis data, which interpretation led you to the choice made. This is key for good maintainability in the years to come. Most common performance problems with O/R mappers Below is an incomplete list of common performance problems related to data-access / O/R mappers / RDBMS code. It will help you with fixing the hotspots you found in the interpretation step. SELECT N+1: (Lazy-loading specific). Lazy loading triggered performance bottlenecks. Consider a list of Orders bound to a grid. You have a Field mapped onto a related field in Order, Customer.CompanyName. Showing this column in the grid will make the grid fetch (indirectly) for each row the Customer row. This means you'll get for the single list not 1 query (for the orders) but 1+(the number of orders shown) queries. To solve this: use eager loading using a prefetch path to fetch the customers with the orders. SELECT N+1 is easy to spot with an O/R mapper profiler or RDBMS profiler: if you see a lot of identical queries executed at once, you have this problem. Prefetch paths using many path nodes or sorting, or limiting. Eager loading problem. Prefetch paths can help with performance, but as 1 query is fetched per node, it can be the number of data fetched in a child node is bigger than you think. Also consider that data in every node is merged on the client within the parent. This is fast, but it also can take some time if you fetch massive amounts of entities. If you keep fetches small, you can use tuning parameters like the ParameterizedPrefetchPathThreshold setting to get more optimal queries. Deep inheritance hierarchies of type Target Per Entity/Type. If you use inheritance of type Target per Entity / Type (each type in the inheritance hierarchy is mapped onto its own table/view), fetches will join subtype- and supertype tables in many cases, which can lead to a lot of performance problems if the hierarchy has many types. With this problem, keep inheritance to a minimum if possible, or switch to a hierarchy of type Target Per Hierarchy, which means all entities in the inheritance hierarchy are mapped onto the same table/view. Of course this has its own set of drawbacks, but it's a compromise you might want to take. Fetching massive amounts of data by fetching large lists of entities. LLBLGen Pro supports paging (and limiting the # of rows returned), which is often key to process through large sets of data. Use paging on the RDBMS if possible (so a query is executed which returns only the rows in the page requested). When using paging in a web application, be sure that you switch server-side paging on on the datasourcecontrol used. In this case, paging on the grid alone is not enough: this can lead to fetching a lot of data which is then loaded into the grid and paged there. Keep note that analyzing queries for paging could lead to the false assumption that paging doesn't occur, e.g. when the query contains a field of type ntext/image/clob/blob and DISTINCT can't be applied while it should have (e.g. due to a join): the datareader will do DISTINCT filtering on the client. this is a little slower but it does perform paging functionality on the data-reader so it won't fetch all rows even if the query suggests it does. Fetch massive amounts of data because blob/clob/ntext/image fields aren't excluded. LLBLGen Pro supports field exclusion for queries. You can exclude fields (also in prefetch paths) per query to avoid fetching all fields of an entity, e.g. when you don't need them for the logic consuming the resultset. Excluding fields can greatly reduce the amount of time spend on data-transport across the network. Use this optimization if you see that there's a big difference between query execution time on the RDBMS and the time reported by the .NET profiler for the ExecuteReader method call. Doing client-side aggregates/scalar calculations by consuming a lot of data. If possible, try to formulate a scalar query or group by query using the projection system or GetScalar functionality of LLBLGen Pro to do data consumption on the RDBMS server. It's far more efficient to process data on the RDBMS server than to first load it all in memory, then traverse the data in-memory to calculate a value. Using .ToList() constructs inside linq queries. It might be you use .ToList() somewhere in a Linq query which makes the query be run partially in-memory. Example: var q = from c in metaData.Customers.ToList() where c.Country=="Norway" select c; This will actually fetch all customers in-memory and do an in-memory filtering, as the linq query is defined on an IEnumerable<T>, and not on the IQueryable<T>. Linq is nice, but it can often be a bit unclear where some parts of a Linq query might run. Fetching all entities to delete into memory first. To delete a set of entities it's rather inefficient to first fetch them all into memory and then delete them one by one. It's more efficient to execute a DELETE FROM ... WHERE query on the database directly to delete the entities in one go. LLBLGen Pro supports this feature, and so do some other O/R mappers. It's not always possible to do this operation in the context of an O/R mapper however: if an O/R mapper relies on a cache, these kind of operations are likely not supported because they make it impossible to track whether an entity is actually removed from the DB and thus can be removed from the cache. Fetching all entities to update with an expression into memory first. Similar to the previous point: it is more efficient to update a set of entities directly with a single UPDATE query using an expression instead of fetching the entities into memory first and then updating the entities in a loop, and afterwards saving them. It might however be a compromise you don't want to take as it is working around the idea of having an object graph in memory which is manipulated and instead makes the code fully aware there's a RDBMS somewhere. Conclusion Performance tuning is almost always about compromises and making choices. It's also about knowing where to look and how the systems in play behave and should behave. The four steps I provided should help you stay focused on the real problem and lead you towards the solution. Knowing how to optimally use the systems participating in your own code (.NET framework, O/R mapper, RDBMS, network/services) is key for success as well as knowing what's going on inside the application you built. I hope you'll find this guide useful in tracking down performance problems and dealing with them in a useful way.  

  Read the article

• Integrate BING API for Search inside ASP.Net web application

  - by sreejukg

  As you might already know, Bing is the Microsoft Search engine and is getting popular day by day. Bing offers APIs that can be integrated into your website to increase your website functionality. At this moment, there are two important APIs available. They are Bing Search API Bing Maps The Search API enables you to build applications that utilize Bing’s technology. The API allows you to search multiple source types such as web; images, video etc. and supports various output prototypes such as JSON, XML, and SOAP. Also you will be able to customize the search results as you wish for your public facing website. Bing Maps API allows you to build robust applications that use Bing Maps. In this article I am going to describe, how you can integrate Bing search into your website. In order to start using Bing, First you need to sign in to http://www.bing.com/toolbox/bingdeveloper/ using your windows live credentials. Click on the Sign in button, you will be asked to enter your windows live credentials. Once signed in you will be redirected to the Developer page. Here you can create applications and get AppID for each application. Since I am a first time user, I don’t have any applications added. Click on the Add button to add a new application. You will be asked to enter certain details about your application. The fields are straight forward, only thing you need to note is the website field, here you need to enter the website address from where you are going to use this application, and this field is optional too. Of course you need to agree on the terms and conditions and then click Save. Once you click on save, the application will be created and application ID will be available for your use. Now we got the APP Id. Basically Bing supports three protocols. They are JSON, XML and SOAP. JSON is useful if you want to call the search requests directly from the browser and use JavaScript to parse the results, thus JSON is the favorite choice for AJAX application. XML is the alternative for applications that does not support SOAP, e.g. flash/ Silverlight etc. SOAP is ideal for strongly typed languages and gives a request/response object model. In this article I am going to demonstrate how to search BING API using SOAP protocol from an ASP.Net application. For the purpose of this demonstration, I am going to create an ASP.Net project and implement the search functionality in an aspx page. Open Visual Studio, navigate to File-> New Project, select ASP.Net empty web application, I named the project as “BingSearchSample”. Add a Search.aspx page to the project, once added the solution explorer will looks similar to the following. Now you need to add a web reference to the SOAP service available from Bing. To do this, from the solution explorer, right click your project, select Add Service Reference. Now the new service reference dialog will appear. In the left bottom of the dialog, you can find advanced button, click on it. Now the service reference settings dialog will appear. In the bottom left, you can find Add Web Reference button, click on it. The add web reference dialog will appear now. Enter the URL as http://api.bing.net/search.wsdl?AppID=<YourAppIDHere>&version=2.2 (replace <yourAppIDHere> with the appID you have generated previously) and click on the button next to it. This will find the web service methods available. You can change the namespace suggested by Bing, but for the purpose of this demonstration I have accepted all the default settings. Click on the Add reference button once you are done. Now the web reference to Search service will be added your project. You can find this under solution explorer of your project. Now in the Search.aspx, that you previously created, place one textbox, button and a grid view. For the purpose of this demonstration, I have given the identifiers (ID) as txtSearch, btnSearch, gvSearch respectively. The idea is to search the text entered in the text box using Bing service and show the results in the grid view. In the design view, the search.aspx looks as follows. In the search.aspx.cs page, add a using statement that points to net.bing.api. I have added the following code for button click event handler. The code is very straight forward. It just calls the service with your AppID, a query to search and a source for searching. Let us run this page and see the output when I enter Microsoft in my textbox. If you want to search a specific site, you can include the site name in the query parameter. For e.g. the following query will search the word Microsoft from www.microsoft.com website. searchRequest.Query = “site:www.microsoft.com Microsoft”; The output of this query is as follows. Integrating BING search API to your website is easy and there is no limit on the customization of the interface you can do. There is no Bing branding required so I believe this is a great option for web developers when they plan for site search.

  Read the article

• Oracle Coherence & Oracle Service Bus: REST API Integration

  - by Nino Guarnacci

  This post aims to highlight one of the features found in Oracle Coherence which allows it to be easily added and integrated inside a wider variety of projects.  The features in question are the REST API exposed by the Coherence nodes, with which you can interact in the wider mode in memory data grid.Oracle Coherence and Oracle Service Bus are natively integrated through a feature found in the Oracle Service Bus, which allows you to use the coherence grid cache during the configuration phase of a business service. This feature allows you to use an intermediate layer of cache to retrieve the answers from previous invocations of the same service, without necessarily having to invoke the real business service again. Directly from the web console of Oracle Service Bus, you can decide the policies of eviction of the objects / answers and define the discriminating parameters that identify their uniqueness.The coherence REST APIs, however, allow you to integrate both products for other necessities enabling realization of new architectures design.  Consider coherence’s node as a simple service which interoperates through the stardard services and in particular REST (with JSON and XML). Thinking of coherence as a company’s shared service, able to have an implementation of a centralized “map and reduce” which you can access  by a huge variety of protocols (transport and envelopes).An amazing step forward for those who still imagine connectors and code. This type of integration does not require writing custom code or complex implementation to be self-supported. The added value is made unique by the incredible value of both products independently, and still more out of their simple and robust integration.As already mentioned this scenario discovers a hidden new door behind the columns of these two products. The door leads to new ideas and perspectives for enterprise architectures that increasingly wink to next-generation applications: simple and dynamic, perhaps towards the mobile and web 2.0.Below, a small and simple demo useful to demonstrate how easily is to integrate these two products using the Coherence REST API. This demo is also intended to imagine new enterprise architectures using this approach.The idea is to create a centralized system of alerting, fed easily from any company’s application, regardless of the technology with which they were built . Then use a representation standard protocol: RSS, using a service exposed by the service bus; So you can browse and search only the alerts that you are interested on, by category, author, title, date, etc etc.. The steps needed to implement this system are very simple and very few. Here they are listed below and described to be easily replicated within your environment. I would remind you that the demo is only meant to demonstrate how easily is to integrate Oracle Coherence and the Oracle Service Bus, and stimulate your imagination to new technological approaches.1) Install the two products: In this demo used (if necessary, consult the installation guides of 2 products)  - Oracle Service Bus ver. 11.1.1.5.0 http://www.oracle.com/technetwork/middleware/service-bus/downloads/index.html - Oracle Coherence ver. 3.7.1 http://www.oracle.com/technetwork/middleware/coherence/downloads/index.html 2) Because you choose to create a centralized alerting system, we need to define a structure type containing some alerting attributes useful to preserve and organize the information of the various alerts sent by the different applications. Here, then it was built a java class named Alert containing the canonical properties of an alarm information:- Title- Description- System- Time- Severity 3) Therefore, we need to create two configuration files for the coherence node, in order to save the Alert objects within the grid, through the rest/http protocol (more than the native API for Java, C + +, C,. Net). Here are the two minimal configuration files for Coherence:coherence-rest-config.xml resty-server-config.xml This minimum configuration allows me to use a distributed cache named "alerts" that can  also be accessed via http - rest on the host "localhost" over port "8080", objects are of type “oracle.cohsb.Alert”. 4) Below  a simple Java class that represents the type of alert messages: 5) At this point we just need to startup our coherence node, able to listen on http protocol to manage the “alerts” cache, which will receive incoming XML or JSON objects of type Alert. Remember to include in the classpath of the coherence node, the Alert java class and the following coherence libraries and configuration files:  At this point, just run the coherence class node “com.tangosol.net.DefaultCacheServer”advising you to set the following parameters:-Dtangosol.coherence.log.level=9 -Dtangosol.coherence.log=stdout -Dtangosol.coherence.cacheconfig=[PATH_TO_THE_FILE]\resty-server-config.xml 6) Let's create a procedure to test our configuration of Coherence and in order to insert some custom alerts in our cache. The technology with which you want to achieve this functionality is fully not considerable: Javascript, Python, Ruby, Scala, C + +, Java.... Because the protocol to communicate with Coherence is simply HTTP / JSON or XML. For this little demo i choose Java: A method to send/put the alert to the cache: A method to query and view the content of the cache: Finally the main method that execute our methods:  No special library added in the classpath for our class (json struct static defined), when it will be executed, it asks some information such as title, description,... in order to compose and send an alert to the cache and then it will perform an inquiry, to the same cache. At this point, a good exercise at this point, may be to create the same procedure using other technologies, such as a simple html page containing some JavaScript code, and then using Python, Ruby, and so on.7) Now we are ready to start configuring the Oracle Service Bus in order to integrate the two products. First integrate the internal alerting system of Oracle Service Bus with our centralized alerting system based on coherence node. This ensures that by monitoring, or directly from within our Proxy Message Flow, we can throw alerts and save them directly into the Coherence node. To do this I choose to use the jms technology, natively present inside the Oracle Weblogic / Service Bus. Access to the Oracle WebLogic Administration console and create and configure a new JMS connection factory and a new jms destination (queue). Now we should create a new resource of type “alert destination” within our Oracle Service Bus project. The new “alert destination” resource should be configured using the newly created connection factory jms and jms destination. Finally, in order to withdraw the message alert enqueued in our JMS destination and send it to our coherence node, we just need to create a new business service and proxy service within our Oracle Service Bus project.Our business service is responsible for sending a message to our REST service Coherence using as a method action: PUT Finally our proxy service have to collect all messages enqueued on the destination, execute an xquery transformation on those messages  in order to translate them into valid XML / alert objects useful to be sent to our coherence service, through the newly created business service. The message flow pipeline containing the xquery transformation: Incredibly,  we just did a basic first integration between the native alerting system of Oracle Service Bus and our centralized alerting system by simply configuring our coherence node without developing anything.It's time to test it out. To do this I create a proxy service able to generate an alert using our "alert destination", whenever the proxy is invoked. After some invocation to our proxy that generates fake alerts, we could open an Internet browser and type the URL  http://localhost: 8080/alerts/  so we could see what has been inserted within the coherence node. 8) We are ready for the final step.  We would create a new message flow, that can be used to search and display the results in standard mode. To do this I choosen the standard representation of RSS, to display a formatted result on a huge variety of devices such as readers for the iPhone and Android. The inquiry may be defined already at the time of the request able to return only feed / items related to our needs. To do this we need to create a new business service, a new proxy service, and finally a new XQuery Transformation to take care of translating the collection of alerts that will be return from our coherence node in a nicely formatted RSS standard document.So we start right from this resource (xquery), which has the task of transforming a collection of alerts / xml returned from the node coherence in a type well-formatted feed RSS 2.0 our new business service that will search the alerts on our coherence node using the Rest API. And finally, our last resource, the proxy service that will be exposed as an RSS / feeds to various mobile devices and traditional web readers, in which we will intercept any search query, and transform the result returned by the business service in an RSS feed 2.0. The message flow with the transformation phase (Alert TO Feed Items): Finally some little tricks to follow during the routing to the business service, - check for any queries present in the url to require a subset of alerts  - the http header "Accept" to help get an answer XML instead of JSON: In our little demo we also static added some coherence parameters to the request:sort=time:desc;start=0;count=100I would like to get from Coherence that the results will be sorted by date, and starting from 1 up to a maximum of 100.Done!!Just incredible, our centralized alerting system is ready. Inheriting all the qualities and capabilities of the two products involved Oracle Coherence & Oracle Service Bus: - RASP (Reliability, Availability, Scalability, Performance)Now try to use your mobile device, or a normal Internet browser by accessing the RSS just published: Some urls you may test: Search for the last 100 alerts : http://localhost:7001/alarmsSearch for alerts that do not have time set to null (time is not null):http://localhost:7001/alarms?q=time+is+not+nullSearch for alerts that the system property is “Web Browser” (system = ‘Web Browser’):http://localhost:7001/alarms?q=system+%3D+%27Web+Browser%27Search for alerts that the system property is “Web Browser” and the severity property is “Fatal” and the title property contain the word “Javascript”  (system = ‘Web Broser’ and severity = ‘Fatal’ and title like ‘%Javascript%’)http://localhost:8080/alerts?q=system+%3D+%27Web+Browser%27+AND+severity+%3D+%27Fatal%27+AND+title+LIKE+%27%25Javascript%25%27 To compose more complex queries about your need I would suggest you to read the chapter in the coherence documentation inherent the Cohl language (Coherence Query Language) http://download.oracle.com/docs/cd/E24290_01/coh.371/e22837/api_cq.htm . Some useful links: - Oracle Coherence REST API Documentation http://download.oracle.com/docs/cd/E24290_01/coh.371/e22839/rest_intro.htm - Oracle Service Bus Documentation http://download.oracle.com/docs/cd/E21764_01/soa.htm#osb - REST explanation from Wikipedia http://en.wikipedia.org/wiki/Representational_state_transfer At this URL could be downloaded the whole materials of this demo http://blogs.oracle.com/slc/resource/cosb/coh-sb-demo.zip Author: Nino Guarnacci.

  Read the article

• ASP.NET Web API - Screencast series Part 3: Delete and Update

  - by Jon Galloway

  We're continuing a six part series on ASP.NET Web API that accompanies the getting started screencast series. This is an introductory screencast series that walks through from File / New Project to some more advanced scenarios like Custom Validation and Authorization. The screencast videos are all short (3-5 minutes) and the sample code for the series is both available for download and browsable online. I did the screencasts, but the samples were written by the ASP.NET Web API team. In Part 1 we looked at what ASP.NET Web API is, why you'd care, did the File / New Project thing, and did some basic HTTP testing using browser F12 developer tools. In Part 2 we started to build up a sample that returns data from a repository in JSON format via GET methods. In Part 3, we'll start to modify data on the server using DELETE and POST methods. So far we've been looking at GET requests, and the difference between standard browsing in a web browser and navigating an HTTP API isn't quite as clear. Delete is where the difference becomes more obvious. With a "traditional" web page, to delete something'd probably have a form that POSTs a request back to a controller that needs to know that it's really supposed to be deleting something even though POST was really designed to create things, so it does the work and then returns some HTML back to the client that says whether or not the delete succeeded. There's a good amount of plumbing involved in communicating between client and server. That gets a lot easier when we just work with the standard HTTP DELETE verb. Here's how the server side code works: public Comment DeleteComment(int id) { Comment comment; if (!repository.TryGet(id, out comment)) throw new HttpResponseException(HttpStatusCode.NotFound); repository.Delete(id); return comment; } If you look back at the GET /api/comments code in Part 2, you'll see that they start the exact same because the use cases are kind of similar - we're looking up an item by id and either displaying it or deleting it. So the only difference is that this method deletes the comment once it finds it. We don't need to do anything special to handle cases where the id isn't found, as the same HTTP 404 handling works fine here, too. Pretty much all "traditional" browsing uses just two HTTP verbs: GET and POST, so you might not be all that used to DELETE requests and think they're hard. Not so! Here's the jQuery method that calls the /api/comments with the DELETE verb: $(function() { $("a.delete").live('click', function () { var id = $(this).data('comment-id'); $.ajax({ url: "/api/comments/" + id, type: 'DELETE', cache: false, statusCode: { 200: function(data) { viewModel.comments.remove( function(comment) { return comment.ID == data.ID; } ); } } }); return false; }); }); So in order to use the DELETE verb instead of GET, we're just using $.ajax() and setting the type to DELETE. Not hard. But what's that statusCode business? Well, an HTTP status code of 200 is an OK response. Unless our Web API method sets another status (such as by throwing the Not Found exception we saw earlier), the default response status code is HTTP 200 - OK. That makes the jQuery code pretty simple - it calls the Delete action, and if it gets back an HTTP 200, the server-side delete was successful so the comment can be deleted. Adding a new comment uses the POST verb. It starts out looking like an MVC controller action, using model binding to get the new comment from JSON data into a c# model object to add to repository, but there are some interesting differences. public HttpResponseMessage<Comment> PostComment(Comment comment) { comment = repository.Add(comment); var response = new HttpResponseMessage<Comment>(comment, HttpStatusCode.Created); response.Headers.Location = new Uri(Request.RequestUri, "/api/comments/" + comment.ID.ToString()); return response; } First off, the POST method is returning an HttpResponseMessage<Comment>. In the GET methods earlier, we were just returning a JSON payload with an HTTP 200 OK, so we could just return the  model object and Web API would wrap it up in an HttpResponseMessage with that HTTP 200 for us (much as ASP.NET MVC controller actions can return strings, and they'll be automatically wrapped in a ContentResult). When we're creating a new comment, though, we want to follow standard REST practices and return the URL that points to the newly created comment in the Location header, and we can do that by explicitly creating that HttpResposeMessage and then setting the header information. And here's a key point - by using HTTP standard status codes and headers, our response payload doesn't need to explain any context - the client can see from the status code that the POST succeeded, the location header tells it where to get it, and all it needs in the JSON payload is the actual content. Note: This is a simplified sample. Among other things, you'll need to consider security and authorization in your Web API's, and especially in methods that allow creating or deleting data. We'll look at authorization in Part 6. As for security, you'll want to consider things like mass assignment if binding directly to model objects, etc. In Part 4, we'll extend on our simple querying methods form Part 2, adding in support for paging and querying.

  Read the article

• jQuery sequence and function call problem

  - by Jonas

  Hi everyone, I'm very new to jquery and programming in general but I'm still trying to achieve something here. I use Fullcalendar to allow the users of my web application to insert an event in the database. The click on a day, view changes to agendaDay, then on a time of the day, and a dialog popup opens with a form. I am trying to combine validate (pre-jquery.1.4), jquery.form to post the form without page refresh The script calendar.php, included in several pages, defines the fullcalendar object and displays it in a div: $(document).ready(function() { function EventLoad() { $("#addEvent").validate({ rules: { calendar_title: "required", calendar_url: { required: false, maxlength: 100, url: true } }, messages: { calendar_title: "Title required", calendar_url: "Invalid URL format" }, success: function() { $('#addEvent').submit(function() { var options = { success: function() { $('#eventDialog').dialog('close'); $('#calendar').fullCalendar( 'refetchEvents' ); } }; // submit the form $(this).ajaxSubmit(options); // return false to prevent normal browser submit and page navigation return false; }); } }); } $('#calendar').fullCalendar({ header: { left: 'prev,next today', center: 'title', right: 'month,agendaWeek,agendaDay' }, theme: true, firstDay: 1, editable: false, events: "json-events.php?list=1&<?php echo $events_list; ?>", <?php if($_GET['page'] == 'home') echo "defaultView: 'agendaWeek',"; ?> eventClick: function(event) { if (event.url) { window.open(event.url); return false; } }, dayClick: function(date, allDay, jsEvent, view) { if (view.name == 'month') { $('#calendar').fullCalendar( 'changeView', 'agendaDay').fullCalendar( 'gotoDate', date ); }else{ if(allDay) { var timeStamp = $.fullCalendar.formatDate( date, 'dddd+dd+MMMM_u'); var $eventDialog = $('<div/>').load("json-events.php?<?php echo $events_list; ?>&new=1&all_day=1&timestamp=" + timeStamp, null, EventLoad).dialog({autoOpen:false,draggable: false, width: 675, modal:true, position:['center',202], resizable: false, title:'Add an Event'}); $eventDialog.dialog('open').attr('id','eventDialog'); } else { var timeStamp = $.fullCalendar.formatDate( date, 'dddd+dd+MMMM_u'); var $eventDialog = $('<div/>').load("json-events.php?<?php echo $events_list; ?>&new=1&all_day=0&timestamp=" + timeStamp, null, EventLoad).dialog({autoOpen:false,draggable: false, width: 675, modal:true, position:['center',202], resizable: false, title:'Add an Event'}); $eventDialog.dialog('open').attr('id','eventDialog');; } } } }); }); The script json-events.php contains the form and also the code to process the data from the submitted form. What happens when I test the whole thing: - first user click on a day, then time of day. Popup opens with time and date indicated on the form. When user submits the form, dialog closes and calendar refreshes its events.... and the event added by the user appears several times (from 4 to up to 11 times!). The form has been processed several times by the receiving php script?! - second user click, the popup opens, user submit empty form. Form is submitted (validate function not triggered) and user redirected to empty page json-events.php (ajaxForm not triggered either) Obviously, my code is wrong (and dirty as well, sorry). Why is the submitted form, submitted several time to receiving script and why is the javascript function EventLoad triggered only once ? Thank you very much for you help. This problem is killing me !

  Read the article

• filtering jqgrid based on user input

  - by Rohan

  hi, everything is working fine with my jqgrid except a small issue. i have defined postData below: $(document).ready(function() { $("#ctl00_ContentPlaceHolder2_drpUSite").change(function() { site = ($("#ctl00_ContentPlaceHolder2_drpUSite").val()); loadusergrid(); }); var usrparams = new Object(); var site = ($("#ctl00_ContentPlaceHolder2_drpUSite").val()); //----grid code--------- $("#users").jqGrid({ prmNames: { _search: "isSearch", nd: null, rows: "numRows", page: "page", sort: "sortField", order: "sortOrder" }, // add by default to avoid webmethod parameter conflicts postData: { searchString: '', searchField: '', searchOper: '', sites: site }, datatype: function(postdata) { mtype: "GET", $.ajax({ url: 'Users.aspx/GetUsers', type: "POST", contentType: "application/json; charset=utf-8", data: JSON.stringify(postdata), dataType: "json", success: function(data, st) { if (st == "success") { var grid = $("#users")[0]; var m = JSON.parse(data.d); grid.addJSONData(m); } }, error: function() { alert("Loading Failed!"); } }); }, // this is what jqGrid is looking for in json callback jsonReader: { root: "rows", page: "page", total: "total", records: "records", cell: "cell", id: "login", repeatitems: true }, colNames: ['Login', 'First Name', 'Last Name', 'Email', 'Site', 'Role', 'Room', 'UnitID', 'Supervisor', 'Super'], colModel: [ { name: 'login', index: 'login', width: 20 }, { name: 'fname', index: 'fname', width: 20, hidden: true }, { name: 'lname', index: 'lname', width: 60, align: "center", sortable: true, searchoptions: { sopt: ['eq', 'ne']} }, { name: 'email', index: 'email', width: 20, align: "center", sortable: false }, { name: 'site', index: 'site', width: 50, align: "center", sortable: true, searchoptions: { sopt: ['eq', 'ne']} }, { name: 'role', index: 'role', width: 15, align: "center", sortable: true, searchoptions: { sopt: ['eq', 'ne']} }, { name: 'room', index: 'room', width: 30, align: "center", sortable: true }, { name: 'unitid', index: 'unitid', width: 10, align: "center", sortable: false }, { name: 'super', index: 'super', width: 20 }, { name: 'supername', index: 'supername', width: 10, align: "center", sortable: false }, ], pager: "#pageusers", viewrecords: true, caption: "Registered Users", imgpath: 'themes/steel/images', rowNum: 20, rowList: [10, 20, 30, 40, 50], sortname: "pname", sortorder: "desc", showpage: true, gridModel: true, gridToolbar: true, onSelectRow: function(id) { var ret = jQuery("#users").getRowData(id); accpara.id = ret.id; accpara.pname = ret.pname; accpara.pid = ret.pid; accpara.bld = ret.bld; accpara.cname = ret.cname; accpara.amt = ret.amt; accpara.status = ret.status; accpara.notes = ret.notes; accpara.lname = ret.lname; } }); jQuery("#users").navGrid('#pageusers', { view: false, del: false, add: false, edit: false }, {}, // default settings for edit {}, // default settings for add {}, // delete {closeOnEscape: true, multipleSearch: true, closeAfterSearch: true }, // search options {} ); $("#users").setGridWidth(1300, true); $("#users").setGridHeight(500, true); jQuery("#users").jqGrid('filterToolbar'); //----grid code ends here function loadusergrid() { $("#users").setGridParam({ page: 1 }, { pgbuttons: true }, { pginput: true }, { postData: { "site": site} }).trigger("reloadGrid"); } }); when page loads for the 1st time, this works.. now i have 4 drop-downs which filter users. i have written a function which reloads the grid when the dropdown is changed, but it isnt working.. what am i doing wrong here?? when i enable postback for the dropdowns, i get the filtered result. i want to avoid postbacks on my page :). right now i have added just the site dropdown as the filter. once this starts working ill add the remaining 3. firebug shows the ajax call is fired successfully but with an empty sitename. please note that the site dropdown cntains an empty value when page is loaded for the 1st time. thanks in advance

  Read the article

• Xcode/iPhone Development 6 months in - Annoyances

  - by clearbrian

  Hi I've been iPhone programming for 6 months and come from a PC/Java/Eclipse background and still have a few annoyances with Xcode/iPhone programming I wonder are there any shortcuts to. Is there any way to prevent multiple windows opening all the time in XCode? a) When you click on the Errors/Warnings in the bottom right of the status bar build errors are shown in separate window. Any way to get these to show in the main editor? b) Anyway to get debugger to appear in main editor. I have a big screen iMac and it's still window hell on Macs. When you come from Alt-Tab the Mac is a nightmare. 2) Anyway to get a toolbar item on the main editor to: a) Open Console (I know CMD-thingy-R) b) Open Break points (you have to open Debugger first then breakpoints) I know there's keyboard shortcuts but I have only left hand free others on the trackball so any keys on right hand side of keyboard are too far. I know you can add Finder toolbar scripts (just wondering if anyway to extend Xcode). Are there utilities to extend Xcode? Scripts/Automator/Any Services I can setup to help. Can you automate Xcode like you can with Windows/ActiveX/VBA 3) Limit lookups using CMD + double click. If I double click on a variable to find its definition using CMD + double click it shows every occurrence of all variables with that name. (annoying it you name all you maps mapView) Anyway to get it to limit to the current class or at least order so current class is first. 4) Find doesn't seem to loop backwards if result all above cursor position I'm in a class and I hit CMD + F for find. Find box appears. I enter some text hit return. It says I have x matches but only back arrow is highlight in Find But when I hit < it does nothing. I need to scroll to the top and redo the search. If the text is both forwards and backwards then both < are highlighted and it works. is this a bug or a 'feature' Missing Eclipse features I have been looking at the User Script menu but was wondering how powerful they are? 5) any scripts around to generate source from members such as description: @property @synthesize if I add a new member, run a script will generate @property/@syntesize and release in dealloc 7) any good sites for scripts? SCM Im having problems with SCM and Folders on HD under project Classes directory. You get a library e.g. JSON. It usually comes as a folder. You copy it to the /Classes for your project. /Classes/JSON I create a Group for the Library in Xcode under Classes group. Classes JSON I drag the files from the folder into xcode into the JSON Group. I add them to the SCM and icon changes from ? to A but if I try and commit them it say folder /JSON is not under SCM. Can you drag a folder into Xcode so that it AND its files get included in SCM? Anyway to stop Xcode Help from being on top all the time. I keep feeling like punching it and telling it to get out of the way! :) I dont mind it open just not in the way once I've finished. Yes I know I can Ctrl-W Sites: the main site I use to learn Obj-C are : stackoverflow.com Google code Search - tonnes of full apps on here http://www.iphonedevsdk.com/forum/iphone-sdk-development/ Apple Developers Forums (anyway to get RSS feed to these or is that blasphemy :) ) Safari - 100s of IT book though prob too many to keep up :) any others? Any site that gives simple examples for Obj-C/ UIKit The docs just show the methods but actual examples (Google code search has helped a lot here)

  Read the article

• How and when to use UNIT testing properly

  - by Zebs

  I am an iOS developer. I have read about unit testing and how it is used to test specific pieces of your code. A very quick example has to do with processing JSON data onto a database. The unit test reads a file from the project bundle and executes the method that is in charge of processing JSON data. But I dont get how this is different from actually running the app and testing with the server. So my question might be a bit general, but I honestly dont understand the proper use of unit testing, or even how it is useful; I hope the experienced programmers that surf around StackOverflow can help me. Any help is very much appreciated!

  Read the article

• CodePlex Daily Summary for Tuesday, November 22, 2011

  CodePlex Daily Summary for Tuesday, November 22, 2011Popular ReleasesDeveloper Team Article System Management: DTASM v1.3: ?? ??? ???? 3 ????? ???? ???? ????? ??? : - ????? ?????? ????? ???? ?? ??? ???? ????? ?? ??? ? ?? ???? ?????? ???? ?? ???? ????? ?? . - ??? ?? ???? ????? ???? ????? ???? ???? ?? ????? , ?????? ????? ????? ?? ??? . - ??? ??????? ??? ??? ???? ?? ????? ????? ????? .VideoLan DotNet for WinForm, WPF & Silverlight 5: VideoLan DotNet for WinForm, WPF, SL5 - 2011.11.22: The new version contains Silverlight 5 library: Vlc.DotNet.Silverlight. A sample could be tested here The new version add and correct many features : Correction : Reinitialize some variables Deprecate : Logging API, since VLC 1.2 (08/20/2011) Add subitem in LocationMedia (for Youtube videos, ...) Update Wpf sample to use Youtube videos Many others correctionsSharePoint 2010 FBA Pack: SharePoint 2010 FBA Pack 1.2.0: Web parts are now fully customizable via html templates (Issue #323) FBA Pack is now completely localizable using resource files. Thank you David Chen for submitting the code as well as Chinese translations of the FBA Pack! The membership request web part now gives the option of having the user enter the password and removing the captcha (Issue # 447) The FBA Pack will now work in a zone that does not have FBA enabled (Another zone must have FBA enabled, and the zone must contain the me...SharePoint 2010 Education Demo Project: Release SharePoint SP1 for Education Solutions: This release includes updates to the Content Packs for SharePoint SP1. All Content Packs have been updated to install successfully under SharePoint SP1SQL Monitor - tracking sql server activities: SQLMon 4.1 alpha 6: 1. improved support for schema 2. added find reference when right click on object list 3. added object rename supportBugNET Issue Tracker: BugNET 0.9.126: First stable release of version 0.9. Upgrades from 0.8 are fully supported and upgrades to future releases will also be supported. This release is now compiled against the .NET 4.0 framework and is a requirement. Because of this the web.config has significantly changed. After upgrading, you will need to configure the authentication settings for user registration and anonymous access again. Please see our installation / upgrade instructions for more details: http://wiki.bugnetproject.c...Anno 2070 Assistant: v0.1.0 (STABLE): Version 0.1.0 Features Production Chains Eco Production Chains (Complete) Tycoon Production Chains (Disabled - Incomplete) Tech Production Chains (Disabled - Incomplete) Supply (Disabled - Incomplete) Calculator (Disabled - Incomplete) Building Layouts Eco Building Layouts (Complete) Tycoon Building Layouts (Disabled - Incomplete) Tech Building Layouts (Disabled - Incomplete) Credits (Complete)Free SharePoint 2010 Sites Templates: SharePoint Server 2010 Sites Templates: here is the list of sites templates to be downloadedVsTortoise - a TortoiseSVN add-in for Microsoft Visual Studio: VsTortoise Build 30 Beta: Note: This release does not work with custom VsTortoise toolbars. These get removed every time when you shutdown Visual Studio. (#7940) Build 30 (beta)New: Support for TortoiseSVN 1.7 added. (the download contains both setups, for TortoiseSVN 1.6 and 1.7) New: OpenModifiedDocumentDialog displays conflicted files now. New: OpenModifiedDocument allows to group items by changelist now. Fix: OpenModifiedDocumentDialog caused Visual Studio 2010 to freeze sometimes. Fix: The installer didn...nopCommerce. Open source shopping cart (ASP.NET MVC): nopcommerce 2.30: Highlight features & improvements: • Performance optimization. • Back in stock notifications. • Product special price support. • Catalog mode (based on customer role) To see the full list of fixes and changes please visit the release notes page (http://www.nopCommerce.com/releasenotes.aspx).WPF Converters: WPF Converters V1.2.0.0: support for enumerations, value types, and reference types in the expression converter's equality operators the expression converter now handles DependencyProperty.UnsetValue as argument values correctly (#4062) StyleCop conformance (more or less)Json.NET: Json.NET 4.0 Release 4: Change - JsonTextReader.Culture is now CultureInfo.InvariantCulture by default Change - KeyValurPairConverter no longer cares about the order of the key and value properties Change - Time zone conversions now use new TimeZoneInfo instead of TimeZone Fix - Fixed boolean values sometimes being capitalized when converting to XML Fix - Fixed error when deserializing ConcurrentDictionary Fix - Fixed serializing some Uris returning the incorrect value Fix - Fixed occasional error when...Media Companion: MC 3.423b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) Replaced 'Rebuild' with 'Refresh' throughout entire code. Rebuild will now be known as Refresh. mc_com.exe has been fully updated TV Show Resolutions... Resolved issue #206 - having to hit save twice when updating runtime manually Shrunk cache size and lowered loading times f...Delta Engine: Delta Engine Beta Preview v0.9.1: v0.9.1 beta release with lots of refactoring, fixes, new samples and support for iOS, Android and WP7 (you need a Marketplace account however). If you want a binary release for the games (like v0.9.0), just say so in the Forum or here and we will quickly prepare one. It is just not much different from v0.9.0, so I left it out this time. See http://DeltaEngine.net/Wiki.Roadmap for details.SharpMap - Geospatial Application Framework for the CLR: SharpMap-0.9-AnyCPU-Trunk-2011.11.17: This is a build of SharpMap from the 0.9 development trunk as per 2011-11-17 For most applications the AnyCPU release is the recommended, but in case you need an x86 build that is included to. For some dataproviders (GDAL/OGR, SqLite, PostGis) you need to also referense the SharpMap.Extensions assembly For SqlServer Spatial you need to reference the SharpMap.SqlServerSpatial assemblyAJAX Control Toolkit: November 2011 Release: AJAX Control Toolkit Release Notes - November 2011 Release Version 51116November 2011 release of the AJAX Control Toolkit. AJAX Control Toolkit .NET 4 - Binary – AJAX Control Toolkit for .NET 4 and sample site (Recommended). AJAX Control Toolkit .NET 3.5 - Binary – AJAX Control Toolkit for .NET 3.5 and sample site (Recommended). Notes: - The current version of the AJAX Control Toolkit is not compatible with ASP.NET 2.0. The latest version that is compatible with ASP.NET 2.0 can be found h...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.36: Fix for issue #16908: string literals containing ASP.NET replacement syntax fail if the ASP.NET code contains the same character as the string literal delimiter. Also, we shouldn't be changing the delimiter for those literals or combining them with other literals; the developer may have specifically chosen the delimiter used because of possible content inserted by ASP.NET code. This logic is normally off; turn it on via the -aspnet command-line flag (or the Code.Settings.AllowEmbeddedAspNetBl...MVC Controls Toolkit: Mvc Controls Toolkit 1.5.5: Added: Now the DateRanteAttribute accepts complex expressions containing "Now" and "Today" as static minimum and maximum. Menu, MenuFor helpers capable of handling a "currently selected element". The developer can choose between using a standard nested menu based on a standard SimpleMenuItem class or specifying an item template based on a custom class. Added also helpers to build the tree structure containing all data items the menu takes infos from. Improved the pager. Now the developer ...SharpCompress - a fully native C# library for RAR, 7Zip, Zip, Tar, GZip, BZip2: SharpCompress 0.7: Reworked API to be more consistent. See Supported formats table. Added some more helper methods - e.g. OpenEntryStream (RarArchive/RarReader does not support this) Fixed up testsSilverlight Toolkit: Windows Phone Toolkit - Nov 2011 (7.1 SDK): This release is coming soon! What's new ListPicker once again works in a ScrollViewer LongListSelector bug fixes around OutOfRange exceptions, wrong ordering of items, grouping issues, and scrolling events. ItemTuple is now refactored to be the public type LongListSelectorItem to provide users better access to the values in selection changed handlers. PerformanceProgressBar binding fix for IsIndeterminate (item 9767 and others) There is no longer a GestureListener dependency with the C...New ProjectsAndrecorder: Andrecorder???Android???????,???????????????????,????????????????,????????!Android Tree Bulletin: Android bulletin reader in tree format.Bài t?p l?p môn HCI: Name: Ph?n m?m qu?n lý thu h?c phí tru?ng d?i h?c Công Nghi?p Hà N?i Basic Grid Collision sample in XNA: This project shows how to implement a basic grid collision in XNA. The project uses the XNA 4.0 framework and C#Club Manager: Club Manager is a web site for managing sport clubs / teams.Create email with encrypt text implement TEA encryption and Web Service: RahaTEA Mail is an application to send messages in secret. These applications implement TEA encryption and web serviceCRM 2011 Layers: Several .net layers to customize CRM 2011CTEF: China Tomorrow Education Foundation websitedns?????: ??c#???dns?????。????????，???????，??????。EAF: Extensibility Application FrameworkEnergy SBA: In order to compete with large companies for Federal contracts, small business need information. This application seeks to show standard methods of using remote APIs to integrate information into a Metro interface using services provided by the Small Business Administration (SBA)EPiOptimiser - Scan your EPiServer configuration to optimise start up times: EPiScanner scans your EPiServer configuration to optimise start ups by generating a recommended exclude list of assemblies to include in EPiServer framework config. It can be used on command line, as a custom build task or integrated into Visual Studio as an external tool.FreeIDS - Free Intrusion Detection System: Don't want someone to use your computer? Don't want to use a system password? Want to see when someone accessed your computer? Time/Date? FreeIDS is it!FtpServerAdministrator: FtpServerAdministrator makes it easier to administer some ftp server by code, although it can only be used for FileZilla server now. It's developed in C#.GreenPoint Online: Tools and components that help you customize an Office 365 / SharePoint Online Environment.HCC C# Workshop: This project contains the code for the exercises of the HCC C# WorkshopKsigDo - Real time view model syncing across user screens: KsigDo show real time view model syncing across user screens - using ASP.NET, Knockout and SignalR. Real time data syncing across user views *was* hard, especially in web applications. Most of the time, the second user needs to refresh the screen, to see the changes made by first user, or we need to implement some long polling that fetches the data and does the update manually. Now, with SignalR and Knockout, ASP.NET developers can take advantage of view model syncing across users, that...lineseven: ???????????????。Mail Size Labeler for GMail: A small utility that labels large e-mails on your gmail account. This utility scan you gmail account, and adds labels to large e-mail so you can clean your mailbox and free space. The labels this utility adds are: Size 1M-2M Size 2M-5M Size 5M-10M Size 10M-15M Size 15M plus Note: a single e-mail thread may get multiple labels if different e-mails of the thread fit different filters.MathService: Complex digits, standart class extentions etc.MyGameProject: gamesMySQL Connect 2 ASP.NET: Example project to show how to connect MySQL database to ASP.NET web project. IDE: Visual Studio 2010 Pro Programming language: C# Detailed information in the article here: http://epavlov.net/blog/2011/11/13/connect-to-mysql-in-visual-studio/ nl: Nutri Leaf Devomr.event.js: Simple js event injecterPastebin4DotNet: This project is an example of how to consume an API, in this case I consummed the Pastebin API.Pomelo: Pomelo is a website example.QuickDevFrameWork: ????????,??,??,????,ioc ?????postsharp?aopReadable Passphrase Generator: Generates passphrases which are (mostly) grammatically correct but nonsensical. These are easy to remember but difficult to guess (for humans or computers). Developed in C# with a KeePass plugin, console app and public API.Rosyama.ru for Windows Phone 7: ?????????? Windows Phone 7 ??? ???????? ???????? ?? ???? rosyama.ru. ?????????? ??????? ?????????? ? ???????? ????????? ???????. SimpleBatch: As the name suggests, this is a simple batch framework allowing you to define batch jobs in XML format. Thus far, contains a basic selection of processors such as the following; File Email SQL (SQL Server Client) SharePoint Document Library Custom ProcessorSite de Notícias: Projeto de faculdade que consiste na criação de um site de notícias.SPWikiProvisioning: Create update and delete SharePoint wiki pages using feature activation and deactivation handlers.SVN Automated Control With C#: I Created this libaray because I need to control Tortoise SVN automactically with out an interface for my own build server and could not find any resuilts on google to achive this task so I went about creating this libaray which dos most of the task's that I needed. I round that you could control SVN by command line so using that as my basic idear I went about coding the most common commands for SVN most of the commads are done but not all. if you like this libaray then please use it we...TremplinCMS: TremplinCMS is a CMS framework for ASP .NET 4.vlu0206sms: SMSMaker by team0206 developingWCF DataService RequestStream Access on webInvoke HTTP POST: This library provides access to the message body request stream of a WCF Data Service (formerly ADO.NET Data Service), which is not possible with the original WCF Data Service class. You are enabled passing data (e.g. Json, files) via HTTP POST to the request body. It uses the operation context (DbContext) provided by the DataService<T> class to get access to the resquest stream.WebOS: Welcome to join us to build our os projectWp7StarterDantas: Iniciando com Wp7WpfCollaborative3D: WpfCollaborative3DXNA Content Preprocessor: The XNA Content Preprocessor allows you to compile all of your XNA assets outside of your normal XNA project. This means more time building your game or app instead of your content.

  Read the article

• Custom EntityNotFoundDelegate

  - by Felix

  Hi all, I get a org.hibernate.ObjectNotFoundException when I want to delete an object which doesn't exist anymore via hibernate. I just want this exception to be ignored. I could catch the exception and ignore, this would be a solution maybe. But, since there is a hibernate support for ignoring this exception through org.hibernate.cfg.Configuration#entityNotFoundDelegate, I would like to use its advantage and control it using configuration. The question is then, how can I introduce my own/custom implementation of EntityNotFoundDelegate to the org.hibernate.cfg.Configuration? Does anybody have a sample code for me? Just an additional tip, I use Spring Framework as well in my project. Here is the exception that I get: Caused by: org.springframework.orm.hibernate3.HibernateObjectRetrievalFailureException: No row with the given identifier exists: [de.mycompany.domain.ResultObject#810b1334-32d3-02b0-e044-769e0ab48e48]; nested exception is org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [de.mycompany.domain.ResultObject#810b1334-32d3-02b0-e044-769e0ab48e48] at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:660) at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:424) at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374) at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:865) at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:859) at de.mycompany.utils.dao.impl.PersistentDaoImpl.delete(PersistentDaoImpl.java:50) at de.mycompany.utils.service.ServiceImpl.delete(ServiceImpl.java:68) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149) at de.mycompany.utils.service.ServiceInterceptor.invoke(ServiceInterceptor.java:43) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at $Proxy3.delete(Unknown Source) ... 14 more Caused by: org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [de.mycompany.domain.ResultObject#810b1334-32d3-02b0-e044-769e0ab48e48] at org.hibernate.impl.SessionFactoryImpl$2.handleEntityNotFound(SessionFactoryImpl.java:409) at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:108) at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:97) at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:140) at org.hibernate.engine.StatefulPersistenceContext.unproxyAndReassociate(StatefulPersistenceContext.java:594) at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:90) at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:74) at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:793) at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:778) at org.springframework.orm.hibernate3.HibernateTemplate$26.doInHibernate(HibernateTemplate.java:871) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:419) ... 30 more And my versions: Hibernate: 3.3.1 Spring: 2.5.6 Thanks in advance! Felix

  Read the article

• What is the best currency API out there?

  - by YouBook

  I may be asking an odd question, but webmasters seem like a decent place to post this. I'm in the search for an accurate, easy API (such as using JSON or XML) so I can use my web application. I've been trying Google's secret API, but it's dependency isn't that good because of parsing the string (weird JSON format that PHP sometimes return incorrect data or truncates the string due to parsing error, but Google's API is fair but can be improved. So, all I'm asking is your current best currency API out there, I want to have them to include documented API so I can use it with PHP. Cheers.

  Read the article

• jqgrid retrieving empty rows using webapi (REST)

  - by polonskyg

  I'm using jqgrid in an ASPNET MVC4 project with WebApi (REST), Entity Framework 5 using Unit Of Work and Repository patterns. My problem is that I see the data flowing as json to the browser and I see three rows in the grid, but those rows are empty, and the data is not shown (three empty rows in the grid). This is method to get the data in the WebApi controller: public dynamic GetGridData(int rows, int page, string sidx, string sord) { var pageSize = rows; var index = sidx; var order = sord; var categories = Uow.Categories.GetAll().OrderBy(t => (string.IsNullOrEmpty(index) ? "Id" : index) + " " + (order ?? "desc")); var pageIndex = Convert.ToInt32(page) - 1; var totalRecords = categories.Count(); var totalPages = (int)Math.Ceiling((float) totalRecords / (float) pageSize); var categoriesPage = categories.Skip(pageIndex * pageSize).Take(pageSize).ToList(); return new { total = totalPages, page = page, records = totalRecords, rows = (from category in categoriesPage select new { id = category.Id.ToString(), cell = new string[] { category.Id.ToString(), category.Name, category.Description } }).ToArray() }; } This is the json received in the browser { "total": 1, "page": 1, "records": 3, "rows": [{ "id": "1", "cell": ["1", "Category 1", null] }, { "id": "3", "cell": ["3", "Category 3", "asAS"] }, { "id": "4", "cell": ["4", "Category 4", null] }] } This is the .js file with jqgrid jQuery("#ajaxGrid").jqGrid({ url: $("#ServiceUrl").val(), datatype: "json", jsonReader: { repeatitems: false, id: "Id" }, colNames: ['Id', 'Name', 'Description'], colModel: [ { name: 'id', editable: true, sortable: true, hidden: true, align: 'left' }, { name: 'name', editable: true, sortable: true, hidden: false, align: 'left' }, { name: 'description', editable: true, sortable: true, hidden: false, align: 'left' } ], mtype: 'GET', rowNum: 15, pager: '#ajaxGridPager', rowList: [10, 20, 50, 100], caption: 'List of Categories', imgpath: $("#ServiceImagesUrl").val(), altRows: true, shrinkToFit: true, viewrecords: true, autowidth: true, height: 'auto', error: function(x, e) { alert(x.readyState + " "+ x.status +" "+ e.msg); } }); function updateDialog(action) { return { url: $("#ServiceUrl").val(), closeAfterAdd: true, closeAfterEdit: true, afterShowForm: function (formId) { }, modal: true, onclickSubmit: function (params) { var list = $("#ajaxGrid"); var selectedRow = list.getGridParam("selrow"); params.url += "/" + list.getRowData(selectedRow).Id; params.mtype = action; }, width: "300", ajaxEditOptions: { contentType: "application/json" }, serializeEditData: function (data) { delete data.oper; return JSON.stringify(data); } }; } jQuery("#ajaxGrid").jqGrid( 'navGrid', '#ajaxGridPager', { add: true, edit: true, del: true, search: false, refresh: false }, updateDialog('PUT'), updateDialog('POST'), updateDialog('DELETE') ); BTW, If I want to return jqGridData instead the dynamic, How should I do it? Did is showing empty rows as well: public class jqGridData<T> where T : class { public int page { get; set; } public int records { get; set; } public IEnumerable<T> rows { get; set; } public decimal total { get; set; } } public jqGridData<Category> GetGridData(int rows, int page, string sidx, string sord) { var pageSize = rows; var index = sidx; var order = sord; var categories = Uow.Categories.GetAll().OrderBy(t => (string.IsNullOrEmpty(index) ? "Id" : index) + " " + (order ?? "desc")); var pageIndex = Convert.ToInt32(page) - 1; var totalRecords = categories.Count(); var totalPages = (int)Math.Ceiling((float)totalRecords / (float)pageSize); var categoriesPage = categories.Skip(pageIndex * pageSize).Take(pageSize); return new jqGridData<Category> { page = page, records = totalRecords, total = totalPages, rows = categoriesPage }; }

  Read the article

• Backbone.js, Rails and code duplication

  - by Matteo Pagliazzi

  I'm building a web app and I need a JS framework like Backbone.js to work with my backend rovided by Rails that mostly return JSON objects after DB queries. Searching on the web I've discovered Backbone which seems to be complete, quite populare and actively developed but I've noticed that a lot of things done by Backbone are simply a duplicte of the works done by Rails: for example validation and models. My idea of "perfect" (for my actual needs) JS mvc (it can't be called mvc but i don't have any other names) is something really simple that has a function for each action in my Rails controller that are triggered by a specific event (user/hash changes, click on a button...) and send requests to the server that respond with a JSON object then I'll load a template or execute some JS code. Do you have any concern/suggestion about my idea? Do you know some "micro" js framework like what i have described? If you have worked with backone.js + rails what can you suggest me?

  Read the article

• How does one handle an incorrect resource file?

  - by AedonEtLIRA

  I'm starting the parser that will handle one of the key features of my app and realizing exactly who easy it would be for me to screw up a resource file that is provided to the application. For example, a simple resource that I provide to my app is a JSON file that contains an entity layout (name, fascia, location etc...). It would be easy for me to leave out the name of the entity or misspell the JSON key. Obviously catastrophic failures during parsing are to be handled in a try/catch, but how would subtle failures (such as a dyslexic spelling of name) be handled?

  Read the article

• How to downgrade from psql version 9.3.1 to 9.2.4

  - by peeyush singla

  I am building up a rails application that I cloned from my friend. I am using Ubuntu 13.10, rails 3.2.14. I am using a postgresql database and when I try to run rake db:migrate it gives me some error like this: PG::UndefinedObject: ERROR: type "json" does not exist LINE 1: ALTER TABLE "filters" ADD COLUMN "search_string" json I installed pg version :- 9.3.1 but my friend is working on 9.2.4 I don't know why this error is occurring, I tried several times to downgrade using purge or remove commands to remove 9.3.1 all goes well but when I check psql --version it again shows me 9.3.1 . Any solution ???

  Read the article

• Returning JsonResult From ASP.NET MVC 2.0 Controller and Unit Testing

  This post will show how to return a simple Json result from an ASP.NET MVC 2.0 web project.  It will show how to test that result inside a unit test and essentially pick apart the Json, just... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

  Read the article

• EclipseLink Moxy Provider for JAX-RS and JAX-WS

  - by arungupta

  EclipseLink MOXy is a JAXB provider bundled in GlassFish 3.1.2. In addition to JAXB RI, it provides XPath Based Mapping, better support for JPA entities, native JSON binding and many other features. Learn more about MOXy and JAXB examples on their wiki. Blaise blogged about how MOXy can be leveraged to create a JAX-WS service.You just need to provide data-binding attribute in sun-jaxws.xml and then all the XPath-based mapping can be specified on JAXB beans. MOXy can also be used as JAX-RS JSON provider on server-side and client-side. How are you using MOXy in your applications ?

  Read the article

• jqGrid - dynamically load different drop down values for different rows depending on another column value

  - by Renso

  Goal: As we all know the jqGrid examples in the demo and the Wiki always refer to static values for drop down boxes. This of course is a personal preference but in dynamic design these values should be populated from the database/xml file, etc, ideally JSON formatted. Can you do this in jqGrid, yes, but with some custom coding which we will briefly show below (refer to some of my other blog entries for a more detailed discussion on this topic). What you CANNOT do in jqGrid, referrign here up and to version 3.8.x, is to load different drop down values for different rows in the jqGrid. Well, not without some trickery, which is what this discussion is about. Issue: Of course the issue is that jqGrid has been designed for high performance and thus I have no issue with them loading a  reference to a single drop down values list for every column. This way if you have 500 rows or one, each row only refers to a single list for that particuolar column. Nice! SO how easy would it be to simply traverse the grid once loaded on gridComplete or loadComplete and simply load the select tag's options from scratch, via ajax, from memory variable, hard coded etc? Impossible! Since their is no embedded SELECT tag within each cell containing the drop down values (remeber it only has a reference to that list in memory), all you will see when you inspect the cell prior to clicking on it, or even before and on beforeEditCell, is an empty <TD></TD>. When trying to load that list via a click event on that cell will temporarily load the list but jqGrid's last internal callback event will remove it and replace it with the old one, and you are back to square one. Solution: Yes, after spending a few hours on this found a solution to the problem that does not require any updates to jqGrid source code, thank GOD! Before we get into the coding details, the solution here can of course be customized to suite your specific needs, this one loads the entire drop down list that would be needed across all rows once into global variable. I then parse this object that contains all the properties I need to filter the rows depending on which ones I want the user to see based off of another cell value in that row. This only happens when clicking the cell, so no performance penalty. You may of course to load it via ajax when the user clicks the cell, but I found it more effecient to load the entire list as part of jqGrid's normal editoptions: { multiple: false, value: listingStatus } colModel options which again keeps only a reference to the sinlge list, no duplciation. Lets get into the meat and potatoes of it.         var acctId = $('#Id').val();         var data = $.ajax({ url: $('#ajaxGetAllMaterialsTrackingLookupDataUrl').val(), data: { accountId: acctId }, dataType: 'json', async: false, success: function(data, result) { if (!result) alert('Failure to retrieve the Alert related lookup data.'); } }).responseText;         var lookupData = eval('(' + data + ')');         var listingCategory = lookupData.ListingCategory;         var listingStatus = lookupData.ListingStatus;         var catList = '{';         $(lookupData.ListingCategory).each(function() {             catList += this.Id + ':"' + this.Name + '",';         });         catList += '}';         var lastsel;         var ignoreAlert = true;         $(item)         .jqGrid({             url: listURL,             postData: '',             datatype: "local",             colNames: ['Id', 'Name', 'Commission<br />Rep', 'Business<br />Group', 'Order<br />Date', 'Edit', 'TBD', 'Month', 'Year', 'Week', 'Product', 'Product<br />Type', 'Online/<br />Magazine', 'Materials', 'Special<br />Placement', 'Logo', 'Image', 'Text', 'Contact<br />Info', 'Everthing<br />In', 'Category', 'Status'],             colModel: [                 { name: 'Id', index: 'Id', hidden: true, hidedlg: true },                 { name: 'AccountName', index: 'AccountName', align: "left", resizable: true, search: true, width: 100 },                 { name: 'OnlineName', index: 'OnlineName', align: 'left', sortable: false, width: 80 },                 { name: 'ListingCategoryName', index: 'ListingCategoryName', width: 85, editable: true, hidden: false, edittype: "select", editoptions: { multiple: false, value: eval('(' + catList + ')') }, editrules: { required: false }, formatoptions: { disabled: false} }             ],             jsonReader: {                 root: "List",                 page: "CurrentPage",                 total: "TotalPages",                 records: "TotalRecords",                 userdata: "Errors",                 repeatitems: false,                 id: "0"             },             rowNum: $rows,             rowList: [10, 20, 50, 200, 500, 1000, 2000],             imgpath: jQueryImageRoot,             pager: $(item + 'Pager'),             shrinkToFit: true,             width: 1455,             recordtext: 'Traffic lines',             sortname: 'OrderDate',             viewrecords: true,             sortorder: "asc",             altRows: true,             cellEdit: true,             cellsubmit: "remote",             cellurl: editURL + '?rows=' + $rows + '&page=1',             loadComplete: function() {               },             gridComplete: function() {             },             loadError: function(xhr, st, err) {             },             afterEditCell: function(rowid, cellname, value, iRow, iCol) {                 var select = $(item).find('td.edit-cell select');                 $(item).find('td.edit-cell select option').each(function() {                     var option = $(this);                     var optionId = $(this).val();                     $(lookupData.ListingCategory).each(function() {                         if (this.Id == optionId) {                                                       if (this.OnlineName != $(item).getCell(rowid, 'OnlineName')) {                                 option.remove();                                 return false;                             }                         }                     });                 });             },             search: true,             searchdata: {},             caption: "List of all Traffic lines",             editurl: editURL + '?rows=' + $rows + '&page=1',             hiddengrid: hideGrid   Here is the JSON data returned via the ajax call during the jqGrid function call above (NOTE it must be { async: false}: {"ListingCategory":[{"Id":29,"Name":"Document Imaging & Management","OnlineName":"RF Globalnet"} ,{"Id":1,"Name":"Ancillary Department Hardware","OnlineName":"Healthcare Technology Online"} ,{"Id":2,"Name":"Asset Tracking","OnlineName":"Healthcare Technology Online"} ,{"Id":3,"Name":"Asset Tracking","OnlineName":"Healthcare Technology Online"} ,{"Id":4,"Name":"Asset Tracking","OnlineName":"Healthcare Technology Online"} ,{"Id":5,"Name":"Document Imaging & Management","OnlineName":"Healthcare Technology Online"} ,{"Id":6,"Name":"Document Imaging & Management","OnlineName":"Healthcare Technology Online"} ,{"Id":7,"Name":"EMR/EHR Software","OnlineName":"Healthcare Technology Online"}]} I only need the Id and Name for the drop down list, but the third column in the JSON object is important, it is the only that I match up with the OnlineName in the jqGrid column, and then in the loop during afterEditCell simply remove the ones I don't want the user to see. That's it!

  Read the article

• How to handle updated configuration when it's already been cloned for editing

  - by alexrussell

  Really sorry about the title that probably doesn't make much sense. Hopefully I can explain myself better here as it's something that's kinda bugged me for ages, and is now becoming a pressing concern as I write a bit of software with configuration. Most software comes with default configuration options stored in the app itself, and then there's a configuration file (let's say) that a user can edit. Once created/edited for the first time, subsequent updates to the application can not (easily) modify this configuration file for fear of clobbering the user's own changes to the default configuration. So my question is, if my application adds a new configurable parameter, what's the best way to aid discoverability of the setting and allow the user (developer) to override it as nicely as possible given the following constraints: I actually don't have a canonical default config in the application per se, it's more of a 'cascading filesystem'-like affair - the config template is stored in default/config.json and when the user wishes to edit the configuration, it's copied to user/config.json. If a user config is found it is used - there is no automatic overriding of a subset of keys, the whole new file is used and that's that. If there's no user config the default config is used. When a user wishes to edit the config they run a command to 'generate' it for them (which simply copies the config.json file from the default to the user directory). There is no UI for the configuration options as it's not appropriate to the userbase (think of my software as a library or something, the users are developers, the config is done in the user/config.json file). Due to my software being library-like there's no simple way to, on updating of the software, run some tasks automatically (so any ideas of look at the current config, compare to template config, add ing missing keys) aren't appropriate. The only solution I can think of right now is to say "there's a new config setting X" in release notes, but this doesn't seem ideal to me. If you want any more information let me know. The above specifics are not actually 100% true to my situation, but they represent the problem equally well with lower complexity. If you do want specifics, however, I can explain the exact setup. Further clarification of the type of configuration I mean: think of the Atom code editor. There appears to be a default 'template' config file somewhere, but as soon as a configuration option is edited ~/.atom/config.cson is generated and the setting goes in there. From now on is Atom is updated and gets a new configuration key, this file cannot be overwritten by Atom without a lot of effort to ensure that the addition/modification of the key does not clobber. In Atom's case, because there is a GUI for editing settings, they can get away with just adding the UI for the new setting into the UI to aid 'discoverability' of the new setting. I don't have that luxury. Clarification of my constraints and what I'm actually looking for: The software I'm writing is actually a package for a larger system. This larger system is what provides the configuration, and the way it works is kinda fixed - I just do a config('some.key') kinda call and it knows to look to see if the user has a config clone and if so use it, otherwise use the default config which is part of my package. Now, while I could make my application edit the user's configuration files (there is a convention about where they're stored), it's generally not done, so I'd like to live with the constraints of the system I'm using if possible. And it's not just about discoverability either, one large concern is that the addition of a configuration key won't actually work as soon as the user has their own copy of the original template. Adding the key to the template won't make a difference as that file is never read. As such, I think this is actually quite a big flaw in the design of the configuration cascading system and thus needs to be taken up with my upstream. So, thinking about it, based on my constraints, I don't think there's going to be a good solution save for either editing the user's configuration or using a new config file every time there are updates to the default configuration. Even the release notes idea from above isn't doable as, if the user does not follow the advice, suddenly I have a config key with no value (user-defined or default). So the new question is this: what is the general way to solve the problem of having a default configuration in template config files and allowing a user to make user-specific version of these in order to override the defaults? A per-key cascade (rather than per-file cascade) where the user only specifies their overrides? In this case, what happens if a configuration value is an array - do we replace or append to the default (or, more realistically, how does the user specify whether they wish to replace or append to)? It seems like configuration is kinda hard, so how is it solved in the wild?

  Read the article

• sorting dynamic table created by form inputs [migrated]

  - by mille

  i am having problems with sorting can someone help to sort this table not just by its form entry id but onclick with some other columns i tried a lot of plugins but cant get anything to work and i dont know what to do i am new at this i sorry for my english thanks. here is the js: var Animals ={ index: window.localStorage.getItem("Animals:index"), $table: document.getElementById("animals-table"), $form: document.getElementById("animals-form"), $button_save: document.getElementById("animals-save"), $button_discard: document.getElementById("animals-discard"), init: function() { if (!Animals.index) { window.localStorage.setItem("Animals:index", Animals.index = 1); } Animals.$form.reset(); Animals.$button_discard.addEventListener("click", function(event) { Animals.$form.reset(); Animals.$form.id_entry.value = 0; }, true); Animals.$form.addEventListener("submit", function(event) { var entry = { id: parseInt(this.id_entry.value), animal_id:this.animal_id.value, animal_name: this.animal_name.value, animal_type: this.animal_type.value, bday: this.bday.value, animal_sex: this.animal_sex.value, mother_name: this.mother_name.value, farm_name: this.farm_name.value, money: this.money.value, weight: this.weight.value, purchase_partner: this.purchase_partner.value }; if (entry.id === 0) { Animals.storeAdd(entry); Animals.tableAdd(entry); } else { // edit Animals.storeEdit(entry); Animals.tableEdit(entry); } this.reset(); this.id_entry.value = 0; event.preventDefault(); }, true); if (window.localStorage.length - 1) { var animals_list = [], i, key; for (i = 0; i < window.localStorage.length; i++) { key = window.localStorage.key(i); if (/Animals:\d+/.test(key)) { animals_list.push(JSON.parse(window.localStorage.getItem(key))); } } if (animals_list.length) { animals_list.sort(function(a, b) {return a.id < b.id ? -1 : (a.id > b.id ? 1 : 0);}) .forEach(Animals.tableAdd);} Animals.$table.addEventListener("click", function(event) { var op = event.target.getAttribute("data-op"); if (/edit|remove/.test(op)) { var entry = JSON.parse(window.localStorage.getItem("Animals:"+ event.target.getAttribute("data- id"))); if (op == "edit") { Animals.$form.id_entry.value = entry.id; Animals.$form.animal_id.value = entry.animal_id; Animals.$form.animal_name.value = entry.animal_name; Animals.$form.animal_type.value = entry.animal_type; Animals.$form.bday.value = entry.bday; Animals.$form.animal_sex.value = entry.animal_sex; Animals.$form.mother_name.value = entry.mother_name; Animals.$form.farm_name.value = entry.farm_name; Animals.$form.money.value = entry.money; Animals.$form.weight.value = entry.weight; Animals.$form.purchase_partner.value = entry.purchase_partner; } else if (op == "remove") { if (confirm('Are you sure you want to remove this animal from your list?' )) { Animals.storeRemove(entry); Animals.tableRemove(entry); } } event.preventDefault(); } }, true); }, storeAdd: function(entry) { entry.id = Animals.index; window.localStorage.setItem("Animals:index", ++Animals.index); window.localStorage.setItem("Animals:"+ entry.id, JSON.stringify(entry)); }, storeEdit: function(entry) { window.localStorage.setItem("Animals:"+ entry.id, JSON.stringify(entry)); }, storeRemove: function(entry) { window.localStorage.removeItem("Animals:"+ entry.id); }, tableAdd: function(entry) { var $tr = document.createElement("tr"), $td, key; for (key in entry) { if (entry.hasOwnProperty(key)) { $td = document.createElement("td"); $td.appendChild(document.createTextNode(entry[key])); $tr.appendChild($td); } } $td = document.createElement("td"); $td.innerHTML = '<a data-op="edit" data-id="'+ entry.id +'">Edit</a> | <a data-op="remove" data-id="'+ entry.id +'">Remove</a>'; $tr.appendChild($td); $tr.setAttribute("id", "entry-"+ entry.id); Animals.$table.appendChild($tr); }, tableEdit: function(entry) { var $tr = document.getElementById("entry-"+ entry.id), $td, key; $tr.innerHTML = ""; for (key in entry) { if (entry.hasOwnProperty(key)) { $td = document.createElement("td"); $td.appendChild(document.createTextNode(entry[key])); $tr.appendChild($td); } } $td = document.createElement("td"); $td.innerHTML = '<a data-op="edit" data-id="'+ entry.id +'">Edit</a> | <a data-op="remove" data-id="'+ entry.id +'">Remove</a>'; $tr.appendChild($td); }, tableRemove: function(entry) { Animals.$table.removeChild(document.getElementById("entry-"+ entry.id)); } }; Animals.init();

  Read the article

• How can I configure a Factory with the possible providers?

  - by Jonathas Costa

  I have three assemblies: "Framework.DataAccess", "Framework.DataAccess.NHibernateProvider" and "Company.DataAccess". Inside the assembly "Framework.DataAccess", I have my factory (with the wrong implementation of discovery): public class DaoFactory { private static readonly object locker = new object(); private static IWindsorContainer _daoContainer; protected static IWindsorContainer DaoContainer { get { if (_daoContainer == null) { lock (locker) { if (_daoContainer != null) return _daoContainer; _daoContainer = new WindsorContainer(new XmlInterpreter()); // THIS IS WRONG! THIS ASSEMBLY CANNOT KNOW ABOUT SPECIALIZATIONS! _daoContainer.Register( AllTypes.FromAssemblyNamed("Company.DataAccess") .BasedOn(typeof(IReadDao<>)).WithService.FromInterface(), AllTypes.FromAssemblyNamed("Framework.DataAccess.NHibernateProvider") .BasedOn(typeof(IReadDao<>)).WithService.Base()); } } return _daoContainer; } } public static T Create<T>() where T : IDao { return DaoContainer.Resolve<T>(); } } This assembly also defines the base interface for data access IReadDao: public interface IReadDao<T> { IEnumerable<T> GetAll(); } I want to keep this assembly generic and with no references. This is my base data access assembly. Then I have the NHibernate provider's assembly, which implements the above IReadDao using NHibernate's approach. This assembly references the "Framework.DataAccess" assembly. public class NHibernateDao<T> : IReadDao<T> { public NHibernateDao() { } public virtual IEnumerable<T> GetAll() { throw new NotImplementedException(); } } At last, I have the "Company.DataAccess" assembly, which can override the default implementation of NHibernate provider and references both previously seen assemblies. public interface IProductDao : IReadDao<Product> { Product GetByName(string name); } public class ProductDao : NHibernateDao<Product>, IProductDao { public override IEnumerable<Product> GetAll() { throw new NotImplementedException("new one!"); } public Product GetByName(string name) { throw new NotImplementedException(); } } I want to be able to write... IRead<Product> dao = DaoFactory.Create<IRead<Product>>(); ... and then get the ProductDao implementation. But I can't hold inside my base data access any reference to specific assemblies! My initial idea was to read that from a xml config file. So, my question is: How can I externally configure this factory to use a specific provider as my default implementation and my client implementation?

  Read the article

• generated service mock: everything but RhinoMocks fails?

  - by hko

  I have the "quest" to search for the next Mocking Framework for my company, and basically it's down to NSubstitute (simplest syntax, but no strict mocks), FakeItEasy(best reviews, Roy Osherove bonus, and slightly better lib support than NSubstitute), Moq (best "other libs support", biggest featureset, downside: mock.Object). We definitely want to move on from RhinoMocks, e.g. because of the unusefull interactiontest error messages (it should tell me what the parameter was instead, when a verification fails). So I was pretty surprised the other day (that was yesterday) when I found out RhinoMocks could do a thing where every other mock framework fails at: Mocking an autogenerated SomethingService (a typical VS autogenerated service with a default construtor in a partial class). Please don't argue about the design.. I intend to write lightweight integration tests (and some unit tests), and I can't mess around with the service, the product is installed on too many customers system. See this code: // here the NSubstitute and FakeItEasy equivalents throw an exception.. see below TicketStoreService fakeTicketStoreService = MockRepository.GenerateMock<TicketStoreService>(); fakeTicketStoreService.Expect(service => service.DoSomething(Arg.Is(new Guid())).Return(new Guid()); fakeTicketStoreService.DoSomething(Arg.Is(new Guid())); fakeTicketStoreService.VerifyAllExpectations(); Note that DoSomething is a non-virtual methodcall in an autogenerated class. So it shouldn't work, according to common knowledge. But it does. Problem is that it's the only (non commercial) framework that can do this: Rhino.Mocks works, and verification works too FakeItEasy says it doesn't find a default constructor (probably just wrong exception message): No default constructor was found on the type SomeNamespace.TicketStoreService Moq gives something sane and understandable: Invalid setup on a non-virtual (overridable in VB) member: service=> service.DoSomething Nsubstitute gives a message System.NotSupportedException: Cannot serialize member System.ComponentModel.Component.Site of type System.ComponentModel.ISite because it is an interface. I'm really wondering what's going on here with the frameworks, except Moq. The "fancy new" frameworks seem to have an initial perf hit too, probably preparing some Type cache and serializing stuff, whilst RhinoMocks somehow manages to create a very "slim" mock without recursion. I have to admit I didn't like RhinoMocks very well, but here it shines.. unfortunately. So, is there a way to get that to work with newer (non-commercial!) mocking frameworks, or somehow get a sane error message out of Rhino.Mocks? And why can Rhino.Mocks achieve this, when clearly every Mocking framework states it can only work with virtual methods when given a concrete class? Let's not derail the discussion by talking about alternative approaches like Extract&Override or runtime-proxy Mocking frameworks like JustMock/TypeMock/Moles or the new Fakes framework, I know these, but that would be less ideal solutions, for reasons beyond this topic. Any help appreciated..

  Read the article

• WebAPI and MVC4 and OData

  - by Aligned

  I was looking closer into WebAPI, specificially how to use OData to avoid writing GetCustomerByCustomerId(int id) methods all over the place. I had problems just returning IQueryable<T> as some sites suggested in the WebpAPI (Assembly System.Web.Http.dll, v4.0.0.0).  I think things changed in the release version and the blog posts are still out of date. There is no [Queraable] as the answer to this question suggests. Once I get WebAPI.Odata Nuget package, and added the [Queryable] to the method http://localhost:57146/api/values/?$filter=Id%20eq%201 worked (don’t forget the ‘$’). Now the main question is whether I should do this and how to stop logged in users from sniffing the url and getting data for other users. I John V. Peterson has a post on securing WebAPI with headers and intercepting the call at that point. He had an update to use HttpMessageHandlers instead. I think I’ll use this to force the call to contain some kind of unique code for the user, but I’m still thinking about this. I will not expose this to the public, just to my calls with-in my Forms Authentication areas. Other links: http://robbincremers.me/2012/02/16/building-and-consuming-rest-services-with-asp-net-web-api-and-odata-support/ ~lots of good information John V Peterson example: https://github.com/johnvpetersen/ASPWebAPIExample ~ all data access goes through the WebApi and the web client doesn’t have a connection string ~ There is code library for calling the WebApi from MVC using the HttpClient. It’s a great starting point http://blogs.msdn.com/b/alexj/archive/2012/08/15/odata-support-in-asp-net-web-api.aspx ~ Beta (9/18/2012) Nuget package to help with what I want to do? ~ has a sample code project with examples http://blogs.msdn.com/b/alexj/archive/2012/08/15/odata-support-in-asp-net-web-api.aspx http://blogs.msdn.com/b/alexj/archive/2012/08/21/web-api-queryable-current-support-and-tentative-roadmap.aspx http://stackoverflow.com/questions/10885868/asp-net-mvc4-rc-web-api-odata-filter-not-working-with-iqueryable JSON, pass the correct format in the header (Accept: application/json). $format=JSON doesn’t appear to be working. Async methods built into WebApi! Look for the GetAsync methods.

  Read the article

• PHP returning part of the code document

  - by The.Anti.9

  I have a PHP page that does a couple of different things depending on what action is set to in the GET data. Depending, it is supposed to return some JSON, but instead of doing anything it is supposed to it returns the bottom half of the code document itself, starting in the middle of the line. Heres the snippit from where it starts: ... } elseif ($_GET['action'] == 'addtop') { if (!isset($_GET['pname']) || !isset($_GET['url']) || !isset($_GET['artist']) || !isset($_GET['album']) || !isset($_GET['file'])) { die('Error: Incomplete data!'); } if (!file_exists($_GET['pname'].".txt")) { die('Error: No such playlist!'); } $plist = json_decode(file_get_contents($_GET['pname'].".txt"), true); $fh = fopen($_GET['pname'].".txt", 'w') or die('Could not open playlist!'); array_push($plist, array("artist" => $_GET['artist'], "album" => $_GET['album'], "file" => $_GET['file'], "url" => $_GET['url'])); fwrite($fh,json_encode($plist)); } elseif ($_GET['action'] == 'delfromp') { ... And here is what I get when I go to the page: $_GET['artist'], "album" = $_GET['album'], "file" = $_GET['file'], "url" = $_GET['url'])); fwrite($fh,json_encode($plist)); } elseif ($_GET['action'] == 'delfromp') { if (!isset($_GET['pname']) || !isset($_GET['id'])) { die('Error: Incomplete data!'); } if (!file_exists($_GET['pname'].".txt")) { die('Error: No such playlist!'); } $plist = json_decode(file_get_contents($_GET['pname'].".txt"), true); $fh = fopen($_GET['pname'].".txt", 'w') or die('Could not open playlist!'); unset($plist[$_GET['id']]); $plist = array_values($plist); fwrite($fh,json_encode($plist)); } elseif ($_GET['action'] == 'readp') { if (!file_exists($_GET['pname'].".txt")) { die('Error: No such playlist!'); } $plist = json_decode(file_get_contents($_GET['pname'].".txt"), true); $arr = array("entries" = $plist); $json = json_encode($arr); echo $json; } elseif ($_GET['action'] == 'getps') { $plists = array(); if ($handle = opendir('Playlists')) { while (false !== ($playlist = readdir($handle))) { if ($playlist != "." && $playlist != "..") { array_push($plists, substr($playlist, 0, strripos($playlist, '.')-1)); } } } else { die('Error: Can\'T open playlists!'); } $arr = array("entries"=$plists); $json = json_encode($arr); echo $json; } else { die('Error: No such action!'); } ? It starts in the middle of the array_push(... line. I really can't think of what it is doing. Theres no echos anywhere around it. Any ideas?

  Read the article

< Previous Page | 311 312 313 314 315 316 317 318 319 320 321 322  | Next Page >