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  • Process for beginning a Ruby on Rails project

    - by Daniel Beardsley
    I'm about to begin a Ruby on Rails project and I'd love to hear how others go through the process of starting an application design. I have quite a bit of experience with RoR, but don't have that many starting from scratch with only a vision experiences and would appreciate the wisdom of others who've been there. I'm looking for an order of events, reasons for the order, and maybe why each part is important. I can think of a few starting points, but I'm not sure where it's best to begin Model design and relationships (entities, how they relate, and their attributes) Think of user use-cases (or story-boards) and implement the minimum to get these done Create Model unit-tests then create the necessary migrations and AR models to get the tests to pass Hack out the most basic version of the simplest part of your application and go from there Start with a template for a rails app (like http://github.com/thoughtbot/suspenders) Do the boring gruntwork first (User auth, session management, ...) ...

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  • My database has been deleted suddenly on the server how to recover it?

    - by user2728312
    I'm running an application on windows server that connect to a SQL Server database. Today, when I opened SQL Server Management Studio, I was surprised the database is not in the list of the databases! I don't know what's the reason. I searched in the server files but I can't find the database and also in the recycle bin. I put my database in C:\db\myWeb.mdf and suddenly it's been removed! Can anyone tell me how to recover the database?

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  • RSS-Feed or XML-Stream?

    - by Maenny
    HI Folks, I am programming a website for online-reservation-management, preferably for holiday homes. I want to implement a service, which allows the user to pass all their occupation dates to other websites. My question is, what would be the most professional way to do this? Generate a XML-stream Create a valid RSS Feed I think that a XML file has the advantages of being straight to the point, without any information that noone needs. Webmasters of other websites surely prefer the structure of a simple XML file. On the other hand, when someone without programming knowledge wants to use the RSS-Feed with a feedreader or simply with the browser, it may be user-friendlier to use a RSS-FEED. What so you think, I'm unsure...? Greetz Maenny

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  • Store data in file system rather than SQL or Oracle database.

    - by nunu
    Hi All, As I am working on Employee Management system, I have two table (for example) in database as given below. EmployeeMaster (DB table structure) EmployeeID (PK) | EmployeeName | City MonthMaster (DB table structure) Month | Year | EmployeeID (FK) | PrenentDays | BasicSalary Now my question is, I want to store data in file system rather than storing data in SQL or ORACLE. I want my data in file system storage for Insert, Edit and Delete opration with keeping relation with objects too. I am a C# developer, Could anybody have thoughts or idea on it. (To store data in file system with keeping relations between them) Thanks in advance. Any ideas on it?

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  • Error HRESULT E_FAIL when creating Exchange mailbox (CDOEXM.IMailboxStore.CreateMailbox)

    - by Matt
    I am trying to automate the process of creating an Exchange Mailbox for AD users and am running into an issue. When calling the CreateMailbox method I am receiving the error "Error HRESULT E_FAIL has been returned from a call to a COM component". I have installed and referenced the Exchange Management Tools and am using impersonation for permissions. Here is the code: ActiveDs.IADsUser adUser = (ActiveDs.IADsUser)user.NativeObject; adUser.AccountDisabled = !Active; user.CommitChanges(); //Set Password user.Invoke("SetPassword", Password); user.CommitChanges(); //Create Mailbox IMailboxStore mailbox; mailbox = (IMailboxStore)adUser; mailbox.CreateMailbox("LDAP://CN=StandardUsers,CN=StandardUsers,CN=InformationStore,CN=xxxxx," + "CN=Servers,CN=First Administrative Group,CN=Administrative Groups," + "CN=xxxxx Main,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=xxxxx,DC=com"); user.CommitChanges();

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  • Best protocol for client/server communication, from PHP/Perl to C++/Qt4

    - by Kyle
    I'm the author of an Open Source kiosk management system, Libki. The current version, though functional, was very much a learning experience for me. I'm working on a complete rewrite and am having a hard time deciding what protocol to use. The server will be written in PHP or Perl. Most likely PHP because I need to support some uncommon protocols that Library software use, ( SIP and NCIP ). So far I've only found a SIP2 library in PHP. The client is written in C++/Qt4. I'm looking at RPC and REST for client/server communication. I've found RPC client libraries for Qt4, and REST is already part of the Qt4 libraries. Is there an alternative I've missed? So far, REST seems to be the winner.

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  • Document -> Flash viewer, not hosted

    - by Dane
    I've got a content management solution where we present scanned images (TIFF), PDFs, word docs for viewing. While we can simply embed a PDF, sometimes depending on user preferences it's a bit fiddly and sometimes not user-intuitive. I'd like a solution like scribd, embedit, etc, but not hosted. I want to run the application on our own servers and manage it that way (for legal reasons, and our clients won't buy the service if it's hosted somewhere else). SWFtools looks a little basic for my needs, plus doesn't do doc, docx or ppt. Any options? Doesn't have to be free, but would be ideal.

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  • how to selfhost wcf without iis

    - by dotnetcoder
    Reading up on WCF we have self hosting option available , one limitation here is we have to manage the host process lifecycle ourselves. What I am exploring here is to run the service without IIS and do a self hosting. Few things come to mind - How will request management work here. In case of IIS it manages the request and give control to dotnet on a particular thread. In absence of IIS do we need to write code ourselves to manage incoming requests ( say on a tcp port ) or WCF provides some classes to manage request and spawn threads to process each thread. I am aware that in case of self hosting this needs to be a windows service. In case of self hosting how can me tap on the number of simultaneous requests on the sever , it can be managed by limiting the thread pool ? or we can configure this via wcf ? Thanks dc

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  • C# Network Printing

    - by tanthiamhuat
    I am able to get the list of network printers via this code: private void Form1_Load(object sender, EventArgs e) { foreach (String printer in PrinterSettings.InstalledPrinters) { listBox1.Items.Add(printer.ToString()); } } For each network printer, I want to extract out more information like: (a) get document information, like number of pages printed, filename, file-size, etc. (b) get computer IP address from which document was printed. (c) get username of who printed the document. How do I achieve the above? any code samples would be appreciated. Do I have to look into Windows Management Instrumentation(WMI) stuffs?

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  • Count the unread emails in exchange for each user

    - by Luis
    Hi, i want to count the unread emails in exchange with c# i all conected to the exchange, and get all users and the corresponding email. for the connection i have .. RunspaceConfiguration rsConfig = RunspaceConfiguration.Create(); PSSnapInException snapInException = null; PSSnapInInfo info = rsConfig.AddPSSnapIn("Microsoft.Exchange.Management.PowerShell.Admin", out snapInException); Runspace myRunSpace = RunspaceFactory.CreateRunspace(rsConfig); myRunSpace.Open(); Pipeline pipeline = myRunSpace.CreatePipeline(); Command myCommand = new Command("Get-Mailbox"); pipeline.Commands.Add(myCommand); Collection<PSObject> commandResults = pipeline.Invoke(); // Ok, now we've got a bunch of mailboxes, cycle through them foreach (PSObject mailbox in commandResults) { //define which properties to get foreach (String propName in new string[] { "Name", "EmailAddresses", "Database", "OrganizationalUnit", "UserPrincipalName" }) { //grab the specified property of this mailbox Object objValue = mailbox.Properties[propName].Value; .......

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  • C# external tool for SSMS - Reading from stdin

    - by jheppinstall
    Hi all, I am trying to write an app that makes use of the external tools functionality of SQL Server Management Studio. To specify an external tool, you can enter a path to the app and specify some arguments to pass to the app via STDIN. Currently I just have a form that displays the arguments. Every time I run the external tool I get a new instance of the application. Ideally I would like for the first time I run the tool to load the application, and each subsequent running to take the arguments from STDIN and do something with them WITHOUT creating a new instance of the app. Is there anything I can do that could allow this, or am I stuck with lots of windows? Thanks in advance

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  • MS SQL Server Text Datatype Maxlength = 65,535?

    - by craigmj
    Software I'm working with uses a text field to store XML. From my searches online, the text datatype is supposed to hold 2^31 - 1 characters. Currently SQL Server is truncating the XML at 65,535 characters every time. I know this is caused by sqlserver, because if I add a 65,536th character to the field directly in Management Studio, it states that it will not update because characters will be truncated. Is the Maxlength really 65,535 or could this be because the database was designed in an earlier version of MS SQL Server (2000) and it's using the legacy text datatype instead of 2005's? If this is the case, will Altering the datatype to Text in sql server 2005 fix this issue?

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  • preg replace h2 tags with spaces [closed]

    - by fire
    Possible Duplicate: PHP Regular express to remove <h1> tags (and their content) I have some HTML that looks like this: <h2> Fund Management</h2> <p> The majority of property investments are now made via our Funds.</p> Trying to use a regular expression to strip h2 tags but doesn't work because of the space between the opening and closing h2 tags. preg_replace('/<h2>(.+?)<\/h2>/', '', $content); Any ideas on how to make this work? Also I would ideally like it to replace h1-h6 tags so maybe it needs [1-6] or something?

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  • MySQL Cluster data nodes - slow SELECTs

    - by Boyan Georgiev
    Hi to all. First off, I'm new to MySQL Cluster. This is my pain: I've managed to setup a MySQL Cluster with two data nodes, two SQL nodes and one management server. Everything works pretty well, except the following: my data nodes are spread across an intranet link which incurs latency into communications between the data nodes. Apparently, due to MySQL Cluster's internal partitioning schemes, when my PHP application pulls data from the cluster via SELECT queries, parts of the data are pulled from both data nodes. This makes the page appear onscreen REALLY slowly. If I bring one data node offline, the data can only be pulled from that single remaining data node, and thus, the final result (HTML output) appears on the screen in a very timely fashion. So, my question is this: can the data nodes/cluster be told to pull data from partitions stored only on a particular data node?

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  • How to determine where a Mailitem is being opened from in Outlook 2007 using VSTO 2005 SE

    - by Adam
    I have an Outlook 2007 Add-in in VSTO 2005 SE that allows users to save e-mails into our document management system. From within our system users are able to open e-mails they have previously saved. However, when doing so I need to try and prevent them from saving them again. I am trying to figure out how to determine if the Mailitem being opened is coming from the Outlook e-mail client or from an external source. I know that normally the EntryId Property of the Mailitem is null or empty string when a Mailitem has not been previously saved in Outlook, however, it seems like when a Mailitem is being opened from within our system the EntryID is not null.

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  • Need help understanding .net ThreadPool

    - by Meredith
    I am trying to understand what ThreadPool does, I have this .NET example: class Program { static void Main() { int c = 2; // Use AutoResetEvent for thread management AutoResetEvent[] arr = new AutoResetEvent[50]; for (int i = 0; i < arr.Length; ++i) { arr[i] = new AutoResetEvent(false); } // Set the number of minimum threads ThreadPool.SetMinThreads(c, 4); // Enqueue 50 work items that run the code in this delegate function for (int i = 0; i < arr.Length; i++) { ThreadPool.QueueUserWorkItem(delegate(object o) { Thread.Sleep(100); arr[(int)o].Set(); // Signals completion }, i); } // Wait for all tasks to complete WaitHandle.WaitAll(arr); } } Does this run 50 "tasks", in groups of 2 (int c) until they all finish? Or I am not understanding what it really does.

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  • Which technology should I choose for 3d globe web application

    - by uther-lightbringer
    Hello, i would like to ask you for an advice. I'm currently developing application in Spring consisting of Spring CRUD application as backend, SpringMVC application as tool for management and third part is where my problem lies as I need have application that renders 3d globe which is fed by data from backend from a data set selected by user (user may switch those at will). It has to be web application (though I would prefer not to implement this in flash/flex), composed of two main parts - main part is classic web GUI where user makes his choices and second part is 3d globe which renders the globe with selected set of data visualised. My question is, what do you think is the best option to implement this? Would be SpringMVC framework usable for this kind of application? I will be gratefull for any leads or directions, thank you.

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  • Why hasn't anybody started a hosted continuous integration service?

    - by Teflon Ted
    There's a dozen services that provide hosted version control, hosted ticket tracking, hosted project management, and combinations of all of the above, there's even hosted web-based IDEs. But nobody's yet offered a hosted continuous integration service; at least that I can find. The concept seems simple enough: I register and provide the URL to my source code repository, it grabs my code and builds it via ant/rake/whatever, then runs the suite of tests and some metrics (code coverage, performance, etc.). Is there some prohibitive barrier to entry I'm not considering?

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  • Data Warehouse: One Database or many?

    - by drrollins
    At my new company, they keep all data associated with the data warehouse, including import, staging, audit, dimension and fact tables, together in the same physical database. I've been a database developer for a number of years now and this consolidation of function and form seems counter to everything I know. It seems to make security, backup/restore and performance management issues more manually intensive. Is this something that is done in the industry? Are there substantial reasons for doing or not doing it? The platform is Netezza. The size is in terabytes, hundreds of millions of rows. What I'm looking to get from answers to this question is a solid understanding of how right or wrong this path is. From your experience, what are the issues I should be focused on arguing if this is a path that will cause trouble for us down the road. If it is no big deal, then I'd like to know that as well.

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  • CMS (Web Application OR Windows Application)

    - by Raha
    I am a little bit puzzled about something. I am creating a ASP.NET MVC eCommerce application and currently I have written all the back end in ASP.NET MVC. I was thinking if its better to write all the management in WPF instead of HTML, as its probably even less prone to be exploited by hackers. I am a Windows user so I am not really bothered about using Linux/Mac at the moment so I am quite aware that having all the back-end written in HTML will allow users to have access to the admin area using other OS. I would like to see what are the advantages and disadvantages of having WPF to manage the content of the website as its probably much easier to develop and manage (think about Live Writer).

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  • What is faster: multiple `send`s or using buffering?

    - by dauerbaustelle
    I'm playing around with sockets in C/Python and I wonder what is the most efficient way to send headers from a Python dictionary to the client socket. My ideas: use a send call for every header. Pros: No memory allocation needed. Cons: many send calls -- probably error prone; error management should be rather complicated use a buffer. Pros: one send call, error checking a lot easier. Cons: Need a buffer :-) malloc/realloc should be rather slow and using a (too) big buffer to avoid realloc calls wastes memory. Any tips for me? Thanks :-)

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  • What would you use for auto completion in Rails app?

    - by Andrei
    I want to use auto-completion in a number of fields (5-7) in my forms. There is a screencast on auto-completion with Prototype library by Ryan Bates ( http://railscasts.com/episodes/102-auto-complete-association). On the other hand, I have noticed that quite many guys suggest jQuery for this task ( http://jquery.bassistance.de/autocomplete/demo/). And I guess, there was probably some development last year(s), so I ask you - what would you use nowadays to auto-complete your form fields and why? BTW, I still have an open question on auto completion for HABTM association: http://stackoverflow.com/questions/1510935/how-to-do-habtm-management-with-auto-completion-in-rails

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  • Objective-C - Unloading loaded view when it is swapped

    - by teepusink
    Hi, What is the best way to do view management in a multiview application? Right now I have this ViewSwitcher method/function that comes from a custom delegate I created. The code is a whole bunch of if else like this MyViewController *c = [[MyViewController alloc] initWithNibName:@"MyViewController" bundle:nil]; c.delegate = self; self.myViewController = c; [self.viewHolder insertSubview:c.view atIndex:0]; [c release]; That works fine, but when I visited the function a second time, is there going to be 2 instances of MyViewController now or just 1? How do I unload MyViewController when I switch to another view? Or is there a better way to manage my views? Thanks, Tee

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  • php fail to open a sqlserver 2000 database

    - by Mike108
    I can use the sql server management studio to open a sqlserver 2000 database, but I can not open the same database in a php page using the same user and password. what is the problem? if(!$dbSource->open("192.168.4.241:1433","sa","sa","NorthWind")) { echo "Fail to open the sql server 2000 database"; } ----------------------- function open($db_server, $db_user, $db_password, $db_name) { $this->conn = mssql_connect($db_server, $db_user, $db_password); if(!$this->conn) { return false; } @mssql_select_db($db_name, $this->conn); return true; }

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  • Products combining framework and visual IDE for web development?

    - by Tom Hubbard
    We are looking for some tools to help us with our web development speed. The two main areas that we have pinpointed as parts of the problem are "Framework/Flow Management" and "Visual/Layout Development" Ideally we would find a tool that handles both rather well. However, it seems like there are few tools that handle the middle ground well. Usually it is just a Framework, or and IDE, not both. The best thing we have found so far is Agile Platform. Are we missing any obvious products? Platform at this point is not a huge concern. We can migrate to the best tool.

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