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• How do I use VS2010 One-Click Publish (MsDeploy) to deploy remotely from the command line?

  - by David

  On the remote web server I have installed the remote service http://x.x.x.x/MsDeployAgentService. If I use the Web Application Project's Publish command in VS2010 I can successfully publish to this remote web server and update a specific IIS website. What I want to do now is execute this capability from the command line. I am guessing it is two steps. First build the web application project using the relevant build configuration: msbuild "C:\MyApplication\MyWebApplication.csproj" /T:Package /P:Configuration=Release Then issue the MsDeploy command to have it publish/sync with the remove IIS server: msdeploy -verb:sync -source:package="C:\MyApplication\obj\Release\Package\MyWebApplication.zip" -dest:contentPath="My Production Website", computerName=http://x.x.x.x/MsDeployAgentService, username=adminuser,password=adminpassword Unfortunately I get an the error: Error: (10/05/2010 3:52:02 PM) An error occurred when the request was processed on the remote computer. Error: Source (sitemanifest) and destination (contentPath) are not compatible for the given operation. Error count: 1. I have tried a number of different combinations for destination provider but no joy :( Has anyone managed to replicate VS2010 Web Application Project "One Click" Publish from the command line?

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• Having trouble with instantiating objects in PHP & Ajax custom shopping cart

  - by Phil

  This is my first time playing with both ajax and objects, so please go easy on me I have 3 pages that make up the tester shopping cart. 1) page with 'add' 'remove' buttons and ajax code to call the PHP functions on page 2. this is the actual user page with the HTML output. 2) page with PHP cart function calls, receives $_GET requests from ajax on page 1 and calls functions of the cart object from page 3, returns results to page 1. 3) page with cart object definition. Here's the problem I believe I'm having. Currently I have 'session_start()' on pgs 1 & 2, and the cart definition (pag 3) on pgs 1 & 2. I only define '$_SESSION[cart]= new Cart' on page 2. However, it seems like each time i hit an ajax function (eg each time pg 2 reloads) it seems like it's rewriting $_SESSION['cart'] over again, thus it's always empty at each new click (even tho it displays results of that click) However, if i don't define '$_SESSION[cart] = new Cart' on pg 2, i get an error: Fatal error: main() [function.main]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "Cart" of the object you are trying to operate on was loaded before unserialize() gets called or provide a __autoload() function to load the class definition in /home3/foundloc/public_html/booka/carti.php on line 17 Any suggestions? How can i stop re-creating my cart each time my page 2 (php cart function page) is called by ajax?

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• Development Environment in a VM against an isolated development/test network

  - by bart

  I currently work in an organization that forces all software development to be done inside a VM. This is for a variety of risk/governance/security/compliance reasons. The standard setup is something like: VMWare image given to devs with tools installed VM is customized to suit project/stream needs VM sits in a network & domain that is isolated from the live/production network SCM connectivity is only possible through dev/test network Email and office tools need to be on live network so this means having two separate desktops going at once Heavyweight dev tools in use on VMs so they are very resource hungry Some problems that people complain about are: Development environment runs slower than normal (host OS is windows XP so memory is limited) Switching between DEV machine and Email/Office machine is a pain, simple things like cut and paste are made harder. This is less efficient from a usability perspective. Mouse in particular doesn't seem to work properly using VMWare player or RDP. Need a separate login to Dev/Test network/domain Has anyone seen or worked in other (hopefully better) setups to this that have similar constraints (as mentioned at the top)? In particular are there viable options that would remove the need for running stuff in a VM altogether?

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• sscanf wrapping function to advance string pointer in C

  - by Dusty

  I have a function that makes a series of calls to sscanf() and then, after each, updates the string pointer to point to the first character not consumed by sscanf() like so: if(sscanf(str, "%d%n", &fooInt, &length) != 1) { // error handling } str+=length; In order to clean it up and avoid duplicating this several times over, i'd like to encapsulate this into a nice utility function that looks something like the following: int newSscanf ( char ** str, const char * format, ...) { int rv; int length; char buf[MAX_LENGTH]; va_list args; strcpy(buf, format); strcat(buf, "%n"); va_start(args, format); rv = vsscanf(*str, buf, args, &length); va_end(args); *str += length; return rv; } Then I could simply the calls as below to remove the additional parameter/bookkeeping: if(newSscanf(&str, "%d", &fooInt) != 1) { // error handling } Unfortunately, I can't find a way to append the &length parameter onto the end of the arg list directly or otherwise inside newSscanf(). Is there some way to work around this, or am I just as well off handling the bookkeeping by hand at each call?

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• Problem with Authlogic and Unit/Functional Tests in Rails

  - by mmacaulay

  I'm learning how unit testing is done in Rails, and I've run into a problem involving Authlogic. According to the Documentation there are a few things required to use Authlogic stuff in your tests: test_helper.rb: require "authlogic/test_case" class ActiveSupport::TestCase setup :activate_authlogic end Then in my functional tests I can login users: UserSession.create(users(:tester)) The problem seems to stem from the setup :activate_authlogic line in test_helper.rb, whenever that is included, I get the following errors when running functional tests: NoMethodError: undefined method `request=' for nil:NilClass authlogic (2.1.3) lib/authlogic/controller_adapters/abstract_adapter.rb:63:in `send' authlogic (2.1.3) lib/authlogic/controller_adapters/abstract_adapter.rb:63:in `method_missing' If I remove setup :activate_authlogic and add instead Authlogic::Session::Base.controller = Authlogic::ControllerAdapters::RailsAdapter.new(self) to test_helper.rb, my functional tests seem to work but now my unit tests fail: NoMethodError: undefined method `params' for ActiveSupport::TestCase:Class authlogic (2.1.3) lib/authlogic/controller_adapters/abstract_adapter.rb:30:in `params' authlogic (2.1.3) lib/authlogic/session/params.rb:96:in `params_credentials' authlogic (2.1.3) lib/authlogic/session/params.rb:72:in `params_enabled?' authlogic (2.1.3) lib/authlogic/session/params.rb:66:in `persist_by_params' authlogic (2.1.3) lib/authlogic/session/callbacks.rb:79:in `persist' authlogic (2.1.3) lib/authlogic/session/persistence.rb:55:in `persisting?' authlogic (2.1.3) lib/authlogic/session/persistence.rb:39:in `find' authlogic (2.1.3) lib/authlogic/acts_as_authentic/session_maintenance.rb:96:in `get_session_information' authlogic (2.1.3) lib/authlogic/acts_as_authentic/session_maintenance.rb:95:in `each' authlogic (2.1.3) lib/authlogic/acts_as_authentic/session_maintenance.rb:95:in `get_session_information' /test/unit/user_test.rb:23:in `test_should_save_user_with_email_password_and_confirmation' What am I doing wrong?

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• How do I create a named temporary file on windows in Python?

  - by Chris B.

  I've got a Python program that needs to create a named temporary file which will be opened and closed a couple times over the course of the program, and should be deleted when the program exits. Unfortunately, none of the options in tempfile seem to work: TemporaryFile doesn't have a visible name NamedTemporaryFile creates a file-like object. I just need a filename. I've tried closing the object it returns (after setting delete = False) but I get stream errors when I try to open the file later. SpooledTemporaryFile doesn't have a visible name mkstemp returns both the open file object and the name; it doesn't guarantee the file is deleted when the program exits mktemp returns the filename, but doesn't guarantee the file is deleted when the program exits I've tried using mktemp1 within a context manager, like so: def get_temp_file(suffix): class TempFile(object): def __init__(self): self.name = tempfile.mktemp(suffix = '.test') def __enter__(self): return self def __exit__(self, ex_type, ex_value, ex_tb): if os.path.exists(self.name): try: os.remove(self.name) except: print sys.exc_info() return TempFile() ... but that gives me a WindowsError(32, 'The process cannot access the file because it is being used by another process'). The filename is used by a process my program spawns, and even though I ensure that process finishes before I exit, it seems to have a race condition out of my control. What's the best way of dealing with this? 1 I don't need to worry about security here; this is part of a testing module, so the most someone nefarious could do is cause our unit tests to spuriously fail. The horror!

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• mongodb: insert if not exists

  - by LeMiz

  Hello, Every day, I receive a stock of documents (an update). What I want to do is inserting each of them if it does not exists. I also want to keep track of the first time I inserted them, and the last time I saw them in an update. I don't want to have duplicate documents. I don't want to remove a document which has previously been saved, but is not in my update. 95% (estimated) of the records are unmodified from day to day. I am using the python driver (pymongo), for that matter. What I currently do is (pseudo-code): for each document in update: existing_document = collection.find_one(document) if not existing_document: document['insertion_date'] = now else: document = existing_document document['last_update_date'] = now my_collection.save(document) My problem is that it is very slow (40 mins for less than 100 000 records, and I have millions of them in the update). I am pretty sure there is something builtin for doing this, but the document for update() is mmmhhh.... a bit terse.... ( http://www.mongodb.org/display/DOCS/Updating ) Can someone give an advice on doing it faster ?

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• Populating Models from other Models in Django?

  - by JT

  This is somewhat related to the question posed in this question but I'm trying to do this with an abstract base class. For the purposes of this example lets use these models: class Comic(models.Model): name = models.CharField(max_length=20) desc = models.CharField(max_length=100) volume = models.IntegerField() ... <50 other things that make up a Comic> class Meta: abstract = True class InkedComic(Comic): lines = models.IntegerField() class ColoredComic(Comic): colored = models.BooleanField(default=False) In the view lets say we get a reference to an InkedComic id since the tracer, err I mean, inker is done drawing the lines and it's time to add color. Once the view has added all the color we want to save a ColoredComic to the db. Obviously we could do inked = InkedComic.object.get(pk=ink_id) colored = ColoredComic() colored.name = inked.name etc, etc. But really it'd be nice to do: colored = ColoredComic(inked_comic=inked) colored.colored = True colored.save() I tried to do class ColoredComic(Comic): colored = models.BooleanField(default=False) def __init__(self, inked_comic = False, *args, **kwargs): super(ColoredComic, self).__init__(*args, **kwargs) if inked_comic: self.__dict__.update(inked_comic.__dict__) self.__dict__.update({'id': None}) # Remove pk field value but it turns out the ColoredComic.objects.get(pk=1) call sticks the pk into the inked_comic keyword, which is obviously not intended. (and actually results in a int does not have a dict exception) My brain is fried at this point, am I missing something obvious, or is there a better way to do this?

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• change the value of the button of the button clicked

  - by user269431

  On inserting the new <li>, I have to set the value of the button clicked to Delete. How can I do that? With the actual code, it`s working only once, and on adding other list, the button no more has the the value 'Delete'. $("#mylist :button").click( function() { var text = $(this).val(); if (text == "Delete") { $(this).parent().remove(); } else { $(this).val("Delete"); } }); $("#mylist li:last-child").live('click', function() { $(this).parent().append('<li>' + '<input type = "textbox">' + '<input type = "button" value= "Save">' + '</li>'); }); <div> <ul id="mylist"> <li id="1">1<button id="Button3">Delete</button> </li> <li id="2">2<button id="Button2">Delete</button></li> <li id="3">3<button id="another_entry">Save</button></li> </ul>

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• Slow query with unexpected index scan

  - by zerkms

  Hello I have this query: SELECT * FROM sample INNER JOIN test ON sample.sample_number = test.sample_number INNER JOIN result ON test.test_number = result.test_number WHERE sampled_date BETWEEN '2010-03-17 09:00' AND '2010-03-17 12:00' the biggest table here is RESULT, contains 11.1M records. The left 2 tables about 1M. this query works slowly (more than 10 minutes) and returns about 800 records. executing plan shows clustered index scan (over it's PRIMARY KEY (result.result_number, which actually doesn't take part in query)) over all 11M records. RESULT.TEST_NUMBER is a clustered primary key. if I change 2010-03-17 09:00 to 2010-03-17 10:00 - i get about 40 records. it executes for 300ms. and plan shows index seek (over result.test_number index) if i replace * in SELECT clause to result.test_number (covered with index) - then all become fast in first case too. this points to hdd IO issues, but doesn't clarifies changing plan. so, any ideas? UPDATE: sampled_date is in table sample and covered by index. other fields from this query: test.sample_number is covered by index and result.test_number too. UPDATE 2: obviously than sql server in any reasons don't want to use index. i did a small experiment: i remove INNER JOIN with result, select all test.test_number and after that do SELECT * FROM RESULT WHERE TEST_NUMBER IN (...) this, of course, works fast. but i cannot get what is the difference and why query optimizer choose such inappropriate way to select data in 1st case.

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• [Gray Hat Python] Simple debugger, want work ??

  - by Rami Jarrar

  hi, i'm reading the Gray Hat Python,, i reach for this :: class debugger(): def __init__(self): self.h_process = None self.pid = None self.debugger_active = False def load(self,path_to_exe): creation_flags = DEBUG_PROCESS startupinfo = STARTUPINFO() process_information = PROCESS_INFORMATION() startupinfo.dwFlags = 0x1 startupinfo.wShowWindows = 0x0 startupinfo.cb = sizeof(startupinfo) if kernel32.CreateProcessA(path_to_exe, None, None, None, None, creation_flags, None, None, byref(startupinfo), byref(process_information)): print "[*] We have successfully launched the process!" print "[*] PID: %d"%(process_information.dwProcessId) self.h_process = self.open_process(process_information.dwProcessId) else: print "[*] Error: 0x%08x."%(kernel32.GetLastError()) def open_process(self,pid): h_process = self.open_process(pid) if kernel32.DebugActiveProcess(pid): self.debugger_active = True self.pid = int(pid) self.run() else: print "[*] Unable to attach to the process." def run(self): while self.debugger_active == True: self.get_debug_event() def get_debug_event(self): debug_event = DEBUG_EVENT() continue_status = DBG_CONTINUE if kernel32.WaitForDebugEvent(byref(debug_event), INFINITE): raw_input("Press a Key to continue...") self.debugger_active = False kernel32.ContinueDebugEvent( \ debug_event.dwProcessId, \ debug_event.dwThreadId, \ continue_status ) def detach(self): if kernel32.DebugActiveProcessStop(self.pid): print "[*] Finished debugging. Exiting..." return True else: print "There was an error" return False when run my_test.py :: import my_dbg debugger = my_dbg.debugger() pid = raw_input('Enter the PID of the process to attach to: ') debugger.open_process(int(pid)) debugger.detach() i get this error :: Traceback (most recent call last): File "C:/Python26/dbgpy/my_test.py", line 5, in <module> debugger.attach(int(pid)) File "C:/Python26/dbgpy\my_dbg.py", line 37, in attach h_process = self.attach(pid) ........... ........... ........... File "C:/Python26/dbgpy\my_dbg.py", line 37, in attach h_process = self.attach(pid) File "C:/Python26/dbgpy\my_dbg.py", line 37, in attach h_process = self.attach(pid) RuntimeError: maximum recursion depth exceeded its because the loop and something else, but what it is ?? I'm running on Windows using Python2.6.4.. :) Update:: i remove h_process = self.open_process(pid), but i get the same error for the next instruction if kernel32.DebugActiveProcess(pid) , so the problem i think in the loop while,, but what it is ???

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• Delete duplicate records from a SQL table without a primary key

  - by Shyju

  I have the below table with the below records in it create table employee ( EmpId number, EmpName varchar2(10), EmpSSN varchar2(11) ); insert into employee values(1, 'Jack', '555-55-5555'); insert into employee values (2, 'Joe', '555-56-5555'); insert into employee values (3, 'Fred', '555-57-5555'); insert into employee values (4, 'Mike', '555-58-5555'); insert into employee values (5, 'Cathy', '555-59-5555'); insert into employee values (6, 'Lisa', '555-70-5555'); insert into employee values (1, 'Jack', '555-55-5555'); insert into employee values (4, 'Mike', '555-58-5555'); insert into employee values (5, 'Cathy', '555-59-5555'); insert into employee values (6 ,'Lisa', '555-70-5555'); insert into employee values (5, 'Cathy', '555-59-5555'); insert into employee values (6, 'Lisa', '555-70-5555'); I dont have any primary key in this table .But i have the above records in my table already. I want to remove the duplicate records which has the same value in EmpId and EmpSSN fields. Ex : Emp id 5 Can any one help me to frame a query to delete those duplicate records Thanks in advance

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• jQuery Tooltip positioning issues

  - by Nimbuz

  HTML: <a href="#" rel="tooltip-1">Open Tooltip</a> <div id="tooltip-1">Tooltip Content</div> jQuery: xOffset = $('#tooltip-1').height() + 10; yOffset = -30 ; $("a[rel=tooltip-1]").hover(function(e){ this.t = this.attr("href"); $("body").append("<p id='tooltip'>"+ this.t +"</p>"); $("#tooltip") .css("top",(e.pageY - xOffset) + "px") .css("left",(e.pageX + yOffset) + "px") .fadeIn("fast"); }, function(){ this.t = ""; $("#tooltip").remove(); }); $("a[rel=tooltip-1]").mousemove(function(e){ $("#tooltip-1") .css("top",(e.pageY - xOffset) + "px") .css("left",(e.pageX + yOffset) + "px"); }); Two Issues: Tooltip div (#tooltip-1) doesn't hide on mouseout. Since the tooltip div will always have the same ID as REL, I'd like to modify the above jQuery so that it takes target DIV ID automatically. Thanks in advance for your help.

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• EWS: RemoveExtendedProperty throws error when used on an occurrence of a recurring appointment

  - by flyfishnjake

  I am developing an application that syncs an exchange calendar to another calendar. I put extended properties on the exchange appointments in order to preserve the mapping between appointments in the two calendars. Everything is working fine until I try to remove an extended property from an occurrence of a recurring appointment. When I try doing this, I get the error: The delete action is not supported for this property. Here is a code snippet that demonstrates the error: public void ExchangeTest() { ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1) { Credentials = new NetworkCredential("username", "password", "domain") }; service.AutodiscoverUrl("[email protected]"); Appointment appt = new Appointment(service) { Recurrence = new Recurrence.DailyPattern(DateTime.Now, 2) { NumberOfOccurrences = 3}, Start = DateTime.Now, End = DateTime.Now.AddHours(2), Subject = "Test Appointment" }; NameResolutionCollection resolutionCollection = service.ResolveName("username", ResolveNameSearchLocation.DirectoryOnly, false); string mailboxAddress = resolutionCollection.First().Mailbox.Address; FolderId folderId = new FolderId(WellKnownFolderName.Calendar, mailboxAddress); appt.Save(folderId); PropertySet properties = new PropertySet(AppointmentSchema.ICalUid); appt.Load(properties); CalendarView view = new CalendarView(DateTime.Today, DateTime.Today.AddDays(8)){PropertySet = properties}; IEnumerable<Appointment> occurrences = service.FindAppointments(folderId, view) .Where(a => a.ICalUid == appt.ICalUid); ExtendedPropertyDefinition definition = new ExtendedPropertyDefinition(DefaultExtendedPropertySet.PublicStrings, "TestProperty", MapiPropertyType.String); Appointment firstOccurrence = occurrences.First(); firstOccurrence.SetExtendedProperty(definition, "test"); firstOccurrence.Update(ConflictResolutionMode.AutoResolve); //The error occurs on the next line. firstOccurrence.RemoveExtendedProperty(definition); firstOccurrence.Update(ConflictResolutionMode.AutoResolve); //clean up appt.Delete(DeleteMode.HardDelete); } It appears that the error is only thrown for an Exchange 2007 server (It works on 2010). Am I doing something wrong, or is this a problem with Exchange? Is there a way to work around this issue? Any help will be appreciated.

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• Another Security Exception on GoDaddy after Login attempt

  - by Brian Boatright

  Host: GoDaddy Shared Hosting Trust Level: Medium The following happens after I submit a valid user/pass. The database has read/write permissions and when I remove the login requirement on an admin page that updates the database work as expected. Has anyone else had this issue or know what the problem is? Anyone? Server Error in '/' Application. Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.] System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0 System.Security.CodeAccessPermission.Demand() +59 System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) +684 System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +114 System.Configuration.Internal.InternalConfigHost.StaticOpenStreamForRead(String streamName) +80 System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName, Boolean assertPermissions) +115 System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName) +7 System.Configuration.Internal.DelegatingConfigHost.OpenStreamForRead(String streamName) +10 System.Configuration.UpdateConfigHost.OpenStreamForRead(String streamName) +42 System.Configuration.BaseConfigurationRecord.InitConfigFromFile() +437 Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

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• Binding a TreeView with ContextMenu in Xaml

  - by Michael Stoll

  I'm pretty new to Xaml and need some advise. A TreeView should be bound to a hierarchical object structure. The TreeView should have a context menu, which is specific for each object type. I've tried the following: <TreeView> <TreeView.Resources> <DataTemplate x:Key="RoomTemplate"> <TreeViewItem Header="{Binding Name}"> <TreeViewItem.ContextMenu> <ContextMenu> <MenuItem Header="Open" /> <MenuItem Header="Remove" /> </ContextMenu> </TreeViewItem.ContextMenu> </TreeViewItem> </DataTemplate> </TreeView.Resources> <TreeViewItem Header="{Binding Name}" Name="tviRoot" IsExpanded="True" > <TreeViewItem Header="Rooms" ItemsSource="{Binding Rooms}" ItemTemplate="{StaticResource RoomTemplate}"> <TreeViewItem.ContextMenu> <ContextMenu> <MenuItem Header="Add room"></MenuItem> </ContextMenu> </TreeViewItem.ContextMenu> </TreeViewItem> </TreeViewItem> But with this markup the behavior is as intended, but the child items (the rooms) are indented too much. Anyway all the bining samples I could find use TextBlock instead of TreeViewItem in the DataTemplate, but wonder how to integrate the ContextMenu there.

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• Design Patterns Recommendation for Filtering Option

  - by Tarik

  Hi people, I am thinking to create a filter object which filters and delete everything like html tags from a context. But I want it to be independent which means the design pattern I can apply will help me to add more filters in the future without effecting the current codes. I thought Abstract Factory but it seems it ain't gonna work out the way I want. So maybe builder but it looks same. I don't know I am kinda confused, some one please recommend me a design pattern which can solve my problem but before that let me elaborate the problem a little bit. Lets say I have a class which has Description field or property what ever. And I need filters which remove the things I want from this Description property. So whenever I apply the filter I can add more filter in underlying tier. So instead of re-touching the Description field, I can easily add more filters and all the filters will run for Description field and delete whatever they are supposed to delete from the Description context. I hope I could describe my problem. I think some of you ran into the same situation before. Thanks in advance...

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• Programming language shootout: code most like pseudocode for Dijkstra's Algorithm

  - by Casebash

  Okay, so this question here asked which language is most like executable pseudocode, so why not find out by actually writing some code! Here we have a competition where I will award a 100 point bounty (I know its not much, but I am poor after the recalc) to the code which most resembles this pseudocode. I've read through this a few times so I'm pretty sure that this pseudocode below is correct and about as unambiguous as pseudocode can be. Personally, I'm going to have a go in Python and probably Haskell as well, but I'm just learning the later so my attempt will probably be pretty poor. Note: Obviously to implement anything looking like this you'll have to define quite a few library functions. define DirectedGraph G with: Vertices as V, Edges as E define Vertex A, Z declare each e in E as having properties: Boolean fixed with: initial=false Real minSoFar with: initial=0 for A else infinity define PriorityQueue pq with: objects=V initial=A priority v=v.minSoFar create triggers for v in V: when v.minSoFar event reduced then pq.addOrUpdate v when v.fixed event becomesTrue then pq.remove v Repeat until Z.fixed==True: define Vertex U=pq.pop() U.fixed=True for Edge E adjacentTo U with other Vertex V: V.minSoFar=U.minSoFar+length(E) if reducesValue return Z.name, Z.minSoFar

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• php getting unique values of a multidimensional array

  - by Mark

  I have an array like this: $a = array ( 0 => array ( 'value' => 'America', ), 1 => array ( 'value' => 'England', ), 2 => array ( 'value' => 'Australia', ), 3 => array ( 'value' => 'America', ), 4 => array ( 'value' => 'England', ), 5 => array ( 'value' => 'Canada', ), ) How can I remove the duplicate values so that I get this: $a = array ( 0 => array ( 'value' => 'America', ), 1 => array ( 'value' => 'England', ), 2 => array ( 'value' => 'Australia', ), 4 => array ( 'value' => 'Canada', ), ) I tried using array_unique, but that doesn't work due to this array being multidimensional, I think. Thanks!

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• django+uploadify - don't working

  - by Erico

  Hi, I'm trying to use an example posted on the "github" the link is http://github.com/tstone/django-uploadify. And I'm having trouble getting work. can you help me? I followed step by step, but does not work. Accessing the "URL" / upload / the only thing is that returns "True" part of settings.py import os PROJECT_ROOT_PATH = os.path.dirname(os.path.abspath(file)) MEDIA_ROOT = os.path.join(PROJECT_ROOT_PATH, 'media') TEMPLATE_DIRS = ( os.path.join(PROJECT_ROOT_PATH, 'templates')) urls.py from django.conf.urls.defaults import * from django.conf import settings from teste.uploadify.views import * from django.contrib import admin admin.autodiscover() urlpatterns = patterns('', (r'^admin/', include(admin.site.urls)), url(r'upload/$', upload, name='uploadify_upload'), ) views.py from django.http import HttpResponse import django.dispatch upload_received = django.dispatch.Signal(providing_args=['data']) def upload(request, *args, **kwargs): if request.method == 'POST': if request.FILES: upload_received.send(sender='uploadify', data=request.FILES['Filedata']) return HttpResponse('True') models.py from django.db import models def upload_received_handler(sender, data, **kwargs): if file: new_media = Media.objects.create( file = data, new_upload = True, ) new_media.save() upload_received.connect(upload_received_handler, dispatch_uid='uploadify.media.upload_received') class Media(models.Model): file = models.FileField(upload_to='images/upload/', null=True, blank=True) new_upload = models.BooleanField() uploadify_tags.py from django import template from teste import settings register = template.Library() @register.inclusion_tag('uploadify/multi_file_upload.html', takes_context=True) def multi_file_upload(context, upload_complete_url): """ * filesUploaded - The total number of files uploaded * errors - The total number of errors while uploading * allBytesLoaded - The total number of bytes uploaded * speed - The average speed of all uploaded files """ return { 'upload_complete_url' : upload_complete_url, 'uploadify_path' : settings.UPLOADIFY_PATH, # checar essa linha 'upload_path' : settings.UPLOADIFY_UPLOAD_PATH, } template - uploadify/multi_file_upload.html {% load uploadify_tags }{ multi_file_upload '/media/images/upload/' %} <script type="text/javascript" src="{{ MEDIA_URL }}js/swfobject.js"></script> <script type="text/javascript" src="{{ MEDIA_URL }}js/jquery.uploadify.js"></script> <div id="uploadify" class="multi-file-upload"><input id="fileInput" name="fileInput" type="file" /></div> <script type="text/javascript">// <![CDATA[ $(document).ready(function() { $('#fileInput').uploadify({ 'uploader' : '/media/swf/uploadify.swf', 'script' : '{% url uploadify_upload %}', 'cancelImg' : '/media/images/uploadify-remove.png/', 'auto' : true, 'folder' : '/media/images/upload/', 'multi' : true, 'onAllComplete' : allComplete }); }); function allComplete(event, data) { $('#uploadify').load('{{ upload_complete_url }}', { 'filesUploaded' : data.filesUploaded, 'errorCount' : data.errors, 'allBytesLoaded' : data.allBytesLoaded, 'speed' : data.speed }); // raise custom event $('#uploadify') .trigger('allUploadsComplete', data); } // ]]</script>

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• Problem resolving a generic Repository with Entity Framework and Castle Windsor Container

  - by user368776

  Hi, im working in a generic repository implementarion with EF v4, the repository must be resolved by Windsor Container. First the interface public interface IRepository<T> { void Add(T entity); void Delete(T entity); T Find(int key) } Then a concrete class implements the interface public class Repository<T> : IRepository<T> where T: class { private IObjectSet<T> _objectSet; } So i need _objectSet to do stuff like this in the previous class public void Add(T entity) { _objectSet.AddObject(entity); } And now the problem, as you can see im using a EF interface like IObjectSet to do the work, but this type requires a constraint for the T generic type "where T: class". That constrait is causing an exception when Windsor tries to resolve its concrete type. Windsor configuration look like this. <castle> <components> <component id="LVRepository" service="Repository.Infraestructure.IRepository`1, Repository" type="Repository.Infraestructure.Repository`1, Repository" lifestyle="transient"> </component> </components> The container resolve code IRepository<Product> productsRep =_container.Resolve<IRepository<Product>>(); Now the exception im gettin System.ArgumentException: GenericArguments[0], 'T', on 'Repository.Infraestructure.Repository`1[T]' violates the constraint of type 'T'. ---> System.TypeLoadException: GenericArguments[0], 'T', on 'Repository.Infraestructure.Repository`1[T]' violates the constraint of type parameter 'T'. If i remove the constraint in the concrete class and the depedency on IObjectSet (if i dont do it get a compile error) everything works FINE, so i dont think is a container issue, but IObjectSet is a MUST in the implementation. Some help with this, please.

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• Yet another Subversion "Commit failed" MERGE of 'blabla': 200 OK

  - by marty3d

  Hi! I get the infamous "MERGE of 'whatever': 200 OK" whenever I try to commit using a post-commit hook on Windows (running the repository and Trac locally), and I'm going crazy. I've been looking all over for a day now, without finding any solutions. So here's how it's set up and what I've tried so far: Settings: Windows 7 (64-bit) VisualSVN Server TortoiseSVN Trac 0.11.6 I'm using the three standard scripts for post-commit on Windows. Everything works when I run post-commit.cmd from the command prompt with repo and changesetnumber as parameters. After extensive trouble-shooting, I found that if I remove the last line in trac-post-commit.cmd, Python "%~dp0\trac-post-commit-hook.py" -p "%TRAC_ENV%" -r "%REV%" -u "%AUTHOR%" -m "%LOG%", the Commit failed error goes away. Adding 1/0 (generating a division by zero error) in the python script doesn't show anything different. From the command prompt I get an error, though. Removing all code in the python script also makes the commit failed go away, so I guess the culprit is in trac-post-commit-hook.py. Perhaps if I could send the actual error to a log file, I could dig a little deeper, but I'm not sure how. post-commit.cmd: call %~dp0\trac-post-commit-hook.cmd %1 %2 trac-post-commit-hook.cmd: http://trac.edgewall.org/browser/trunk/contrib/trac-post-commit-hook?rev=920 Thank you so much, it would mean alot if someone could assist a little here! /Martin

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• Tab bar controller inside a navigation controller, or sharing a navigation root view

  - by Daniel Dickison

  I'm trying to implement a UI structured like in the Tweetie app, which behaves as so: the top-level view controller seems to be a navigation controller, whose root view is an "Accounts" table view. If you click on any account, it goes to the second level, which has a tab bar across the bottom. Each tab item shows a different list and lets you drill down further (the subsequent levels don't show the tab bar). So, this seems like the implementation hierarchy is: UINavigationController Accounts: UITableViewController UITabBarController Tweets: UITableViewController Detail view of a tweet/user/etc Replies: UITableViewController ... This seems to work[^1], but appears to be unsupported according to the SDK documentation for -pushViewController:animated: (emphasis added): viewController: The view controller that is pushed onto the stack. It cannot be an instance of tab bar controller. I would like to avoid private APIs and the like, but I'm not sure why this usage is explicitly prohibited even when it seems to work fine. Anyone know the reason? I've thought about putting the tab bar controller as the main controller, with each of the tabs containing separate navigation controllers. The problem with this is that each nav controller needs to share a single root view controller (namely the "Accounts" table in Tweetie) -- this doesn't seem to work: pushing the table controller to a second nav controller seems to remove it from the first. Not to mention all the book-keeping when selecting a different account would probably be a pain. How should I implement this the Right Way? [^1]: The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item, and the individual tab's table controller's need to push their respective detail views to self.tabBarController.navigationController instead of self.navigationController.

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• jQuery Cycle plugin pagerAnchorBuilder images becoming undefined

  - by Casey Becking

  I have a slideshow built in flash that I want to mimic in jQuery. The slide show uses the images from the slideshow as the pager numbers. The problem im having is once i apply links to the slideshow images the pagerAnchorBuilder image returns an undefined for the src of the image. Javascript - $(function() { $('#slideshow').before('<ul id="nav">').cycle({ fx: 'fade', timeout: 7000, pager: '#nav', pagerAnchorBuilder: function(idx, slide) { return '<li><a href="#"><img src="' + slide.src + '" width="100" height="60" /></a></li>'; } }); }); HTML - <div id="slideshow" class="pics"> <a href="http://google.com"><img src="home_1.jpg" width="1000" height="600" /></a> <a href="http://google.com"><img src="home_2.jpg" width="1000" height="600" /></a> <a href="http://google.com"><img src="home_3.jpg" width="1000" height="600" /></a> <a href="http://google.com"><img src="home_4.jpg" width="1000" height="600" /></a> <a href="http://google.com"><img src="home_5.jpg" width="1000" height="600" /></a> </div> If i remove the href's from the slideshow the images in the pager show up without issues. Im not sure if this is a bug or something i need to find a fix for?

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• problems with scrolling a java TextArea

  - by Jonathan

  All, I am running into an issue using JTextArea and JScrollPane. For some reason the scroll pane appears to not recognize the last line in the document, and will only scroll down to the line before it. The scroll bar does not even change to a state where I can slide it until the lines in the document are two greater than the number of lines the textArea shows (it should happen as soon as it is one greater). Has anyone run into this before? What would be a good solution (I want to avoid having to add an extra 'blank' line to the end of the document, which I would have to remove every time I add a new line)? Here is how I instantiate the TextArea and ScrollPane: JFrame frame = new JFrame("Java Chat Program"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Container pane = frame.getContentPane(); if (!(pane.getLayout() instanceof BorderLayout)) { System.err.println("Error: UI Container does not implement BorderLayout."); System.exit(-1); } textArea = new JTextArea(); textArea.setPreferredSize(new Dimension(500, 100)); textArea.setEditable(false); textArea.setLineWrap(true); textArea.setWrapStyleWord(true); JScrollPane scroller = new JScrollPane(textArea); scroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); pane.add(scroller, BorderLayout.CENTER); Here is the method I use to add a new line to textArea: public void println(String a) { textArea.append(" "+a+"\n"); textArea.setCaretPosition(textArea.getDocument().getLength()); } Thanks for your help, Jonathan EDIT: Also, as a side note, with the current code I have to manually scroll down. I assumed that setCaretPosition(doc.getLength()) in the println(line) method would automatically set the page to the bottom after a line is entered... Should that be the case, or do I need to do something differently?

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