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• deriving activity diagram-based GUIs and CRUD them with a DB?

  - by Xin Tanaka

  i received a big book full of processes. i was thinking about the end user (they will be lawyers) and decided the best GUI would be showing activity diagrams or business processes. It reminded me Quickbooks and how non-accountants can successfully use it and understand accounting processes. i began doing research before sending my project to a bunch of programmers: is there some open source solution? can i use MS Visio libraries? which UML tool is programable? what about Eclipse and its modeling tools? etc etc the key points here are: relationships between events, artifacts, actors, etc should be stored in a database. processes or steps in a process should be easily modified by updating the database do this sounds too crazy? (should I explain a bit more why it must be programmed this way?)

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• Forcing WCF proxy to generate an alias prefix

  - by Sean Campbell

  To comply with a clients schema, I've been attempting to generate a WCF client proxy capable of serializing down to a structure with a root node that looks like the following: <quote:request xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:quote="https://foo.com/services/schema/1.2/car_quote"> After some reading, I've had luck in updating the proxy to include the required 'quote' namespace through the use of XmlNameSpaceDeclarations and XmlSerializerNamespaces [System.SerializableAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] public partial class request { [XmlNamespaceDeclarations()] public XmlSerializerNamespaces xmlsn { get { XmlSerializerNamespaces xsn = new XmlSerializerNamespaces(); xsn.Add("quote", "https://foo.com/services/schema/1.2/car_quote"); return xsn; } set { //Just provide an empty setter. } } ... which delivers: <request xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:quote="https://foo.com/services/schema/1.2/car_quote"> however I'm stumped as to how to generate the quote:request element. Environment: ASP.NET 3.5 Thanks

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• WPF/.NET data access models - resource recommendations

  - by jasonk

  We're in the early design/prep phases of transferring/updating a rather large "legacy" 3 tier client-server app to a new version. We’re looking at doing WPF over Winforms as it appears to be the direction Microsoft is pushing development of the future and we’d like the maximize the life cycle/span of the apps. That said during the rewrite we’d like to make as many changes to our data access/presentation model to improve performance as much as possible up front as many. I’ve been doing some research along that vein but the vast majority of the resources I've found that discuss WPF focus only simple data tracking apps or focus on the very basics UI design/controls. The few items that even discuss data presentation are fairly elementary in depth. Are there any books/articles/recommended reading/other resources recommended for development related to large enterprise level business apps? Any “gotchas” that should/could be avoided? General advice to minimize the time underwater

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• how to compare/validate sql schema

  - by Ron Harlev

  I'm looking for a way to validate the SQL schema on a production DB after updating an application version. If the application does not match the DB schema version, there should be a way to warn the user and list the changes needed. Is there a tool or a framework (to use programatically) with built-in features to do that? Or is there some simple algorithm to run this comparison? Update: Red gate lists "from $395". Anything free? Or more foolproof than just keeping the version number?

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• Does php mvc framework agavi use CRUD compliant to REST?

  - by txwikinger

  The agavi framework uses the PUT request for create and POST for updating information. Usually in REST this is used the other way around (often referring to POST adding information while PUT replacing the whole data record). If I understand it correctly, the important issue is that PUT must be idempotent, while POST does not have this requirement. Therefore, I wounder how creating a new record can be idempotent (i.e. multiple request do not lead to multiple creations of a record) in particular when usually the ORM uses an id as a primary key and the id of a new record would not be known to the client (since it is autocreated in the database), hence cannot be part of the request. How does agavi maintain the requirement of idempotence in light of this for the PUT request. Thanks.

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• Override Java System.currentTimeMillis

  - by Mike Clark

  Is there a way, either in code or with JVM arguments, to override the current time, as presented via System.currentTimeMillis, other than manually changing the system clock on the host machine? A little background: We have a system that runs a number of accounting jobs that revolve much of their logic around the current date (ie 1st of the month, 1st of the year, etc) Unfortunately, a lot of the legacy code calls functions such as new Date() or Calendar.getInstance(), both of which eventually call down to System.currentTimeMillis. For testing purposes, right now, we are stuck with manually updating the system clock to manipulate what time and date the code thinks that the test is being run. So my question is: Is there a way to override what is returned by System.currentTimeMillis? For example, to tell the JVM to automatically add or subtract some offset before returning from that method? Thanks in advance!

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• Setting UIActivityIndicatorView while view is prepared

  - by iFloh

  Hi, I have a UITabbBarController with a UITableView. Under certain circumstances the TabBarControllers dataset requires updating when a user arrives from another view, e.g. the initial load when the TabBarController is called the first time, or when the settings are changed. This dataset update takes about 2 seconds and I want to show an UIActivityIndicatorView. Trouble is that when I enter from another view I don't know which view to attach it to, since the loading of the tabbarController is carried out in the viewWillAppear method. Any clues how I can go about this?

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• ASP.net application advice needed

  - by c11ada

  hey all, im biulding a ASP.net application, which is connected to a database. the database design is as follows **Users Table** UserID `(PK) autonumber` Username **Question Table** QuestionID `(PK) autonumber` QuestionNumber QuestionText **Questionnaire Table** QuestionnaireID `(PK) autonumber` UserID `(FK) User Table` Date **Feedback Table** FeedbackID `(PK) autonumber` QuestionnaireID `(FK) Questionnaire Table` QuestionID `(FK) Questions Table` Answer Comment please can some one advise me on how I should go about inserting data into the questionnaire table and the feedback table. I know that the questionnaire table needs to be updated first. but the Questionnaire ID is linked to the feedback table, so how do I go about updating both tables ?

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• "Cleanly" Deploying an ASP.NET Application with LINQ to SQL Server

  - by Bob Kaufman

  In my development environment, my SQL Server is PHILIP\SQLEXPRESS. In testing, it's ANNIE, and the live environment will have a third name yet to be determined. I would have assumed that updating the following statement in web.config would have been enough: <add name="MyConnectionString"providerName="System.Data.SqlClient" connectionString="Data Source=PHILIP\SQLEXPRESS;Initial Catalog=MyDtabase;Integrated Security=True" /> When using SqlConnection, SqlCommand, SqlDataReader and friends, that's all it took. Using LINQ, it doesn't seem to work that nicely. I see the servername repeated in my .dbml file as well as in Settings.settings. After changing it in all of those places, I get it to work. However if I'm doing a few deployments per day during testing, I want to avoid this regimen. My question is: is there a programmatic solution for LINQ to SQL that will allow me to specify the connection string once, preferably in web.config, and get everybody else to refer to it?

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• Synchronization between hibernate running locally and on a server

  - by linead

  Is there an easy way using a library to facilitate the synchronization of two hibernate instances. One running locally on a client and one running on a central server exposed via a web service. So Client tracks changes it makes, pushes them to the Server. The server ensures that the clients is not updating out of sync objects and stores the clients changes. The Client can also sync with the Server so that it can see the changes made by other clients. The idea is that the client can be run offline, without access to the server and only come online to synchronize when needed.

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• Unable to update the snapshot view in clearcase on linux

  - by crystal

  Hi I am trying to create a new snapshot view on my machine and i am using the following procedure: creating the view using ct mkview -snapshot -tag testview -vws /home/store/testview.vws /home/view/testview here the view gets created but fails to register which i register using the ct update on this /home/view/testview location tried to change the configspec using ct edcs & but got error "cleartool: Error: Cannot get view info for current view: not a ClearCase object." explicitly modifying the config_spec using vi editor, and the updating the view ends up creating a log...but no files are copied :( Can someone please direct me as to where i am going wrong?

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• How to deploy and configure many copies of an application to multiple domains on the same server

  - by Oren

  We are about to begin work on an application that will eventually be deployed many times on one server. I am hoping to build a nice interface so that one of my coworkers can easily create new deployments of this application. The idea is to create a wizard with a series of options that will configure basic properties of each particular copy of the app such as color scheme, domain name, etc. Each copy of the application may be further tweaked independently down the line. I would like to know what is the best way to manage the automatic creation of users, the updating of domain name info and the deploying of copies of an application, with the ability to maintain certain discrepancies between each of these copies (such as installed plugins, different CSS) as we update the application in the future. What I'm asking is extremely similar to the way StackExchange 1.0 functioned, where a user could configure several options and a customized version of the StackExchange would soon be up and running. How is this accomplished?

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• twitter basic authorisation not working?

  - by Bunny Rabbit

  URL url = new URL("http://twitter.com/statuses/update.xml"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setDoOutput(true); String cridentials = new sun.misc.BASE64Encoder().encode((username + ":" + password).getBytes()); conn.setRequestProperty ("Authorization", "Basic " + cridentials); OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); wr.write(status); wr.flush(); wr.close(); why the above code for updating twitter status is not working ? i am running it on google app engine.

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• Need better Java application deployment strategy

  - by Jeff Post

  I have various Java Swing applications that are used by multiple users. My deployment strategy is to locate the .jar file on a network share, and users create shortcuts to that file. When the user launches an application, the file is copied to their machine and executed locally. This method allows for a single copy of the code and easy updating. The problem is that I can't update the file on the network share if any user is using the application at that time. I can't use Web Start because I don't have access to a cert for signing the jar. My current workaround is a separate application that copies the desired app to the user's local machine, launches the application, and then the launcher exits. There is a several second delay from when the launcher app exits and the user's app becomes visible. Can anyone suggest a better deployment method where I can easily update a central copy of the application, one where Windows XP won't maintain a lock on the file?

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• App not shown in 2.1 Market

  - by an

  I published several free and paid app in the Market. I recently get several complains from customers about not finding my app in the 2.1 Market. Even if they have bought them before, they can't find it in the market or their download list after updating to 2.1. Can anyone tell me what the problem is? My apps only require minimal SDK 3.. Thanks a lot!! Update: It looks like that they are not shown because they have copy protection enabled. Is this a bug in the Market?

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• MySQL ALTER TABLE on very large table - is it safe to run it?

  - by Timothy Mifsud

  I have a MySQL database with one particular MyISAM table of above 4 million rows. I update this table about once a week with about 2000 new rows. After updating, I then perform the following statement: ALTER TABLE x ORDER BY PK DESC i.e. I order the table in question by the primary key field in descending order. This has not given me any problems on my development machine (Windows with 3GB memory), but, even though 3 times I have tried it successfully on the production Linux server (with 512MB RAM - and achieving the resulted sorted table in about 6 minutes each time), the last time I tried it I had to stop the query after about 30 minutes and rebuild the database from a backup. I have started to wonder whether a 512MB server can cope with that statement (on such a large table) as I have read that a temporary table is created to perform the ALTER TABLE command?! And, if it can be safely run, what should be the expected time for the alteration of the table? Thanks in advance, Tim

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• Calling an svn update from a php script via a browser is not working

  - by hbt

  Hey guys, I have two scripts. running an update and calling shell_exec('svn update') and shell_exec('svn st') running a mysqldump shell_exec('mysqldump params') The svn script is not running the update command, the svn st is printing results but not the svn update I tried to declare parameters when calling svn update eg 'svn update ' . dir . ' --username myuser --password mypasswd --non-interactive'; -- still nothing Played with most of the params If this is something related to binaries/permissions/groups, I don't see it. The mysqldump command works fine and is producing a file, so why isn't the svn updating the filesystem? Please do not advise using core SVN classes in PHP. This is not an option, I don't have complete control over the server and the module is not available. Thanks for your help, -hbt PS: important thing to mention here. The scripts works when called via the command line. It only fails when called via a web browser.

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• using KVO to filter an NSTableView using NSPredicate (with arrays)

  - by KingRufus

  My UI is not updating when I expect it to. The application displays "projects" using a view similar to iTunes -- a source list on the left lets you filter a list (NSTableView) on the right. My filters update properly when they are examining any simple field (like name, a string), but not for arrays (like tags). I'm removing a tag from one of my objects (from an NSMutableArray field called "tags") and I expect it to disappear from the list because it no longer matches the predicate that is bound to my table's NSArrayController. ProjectBrowser.mm: self.filter = NSPredicate* srcPredicate = [NSPredicate predicateWithFormat:@"%@ IN %K", selectedTag, @"tags"]; Project.mm: [self willChangeValueForKey:@"tags"]; [tags removeAllObjects]; [self didChangeValueForKey:@"tags"]; I've also tried this, but the result is the same: [[self mutableArrayValueForKey:@"tags"] removeAllObjects]; Interface Builder setup: a ProjectBrowser object is the XIB's File Owner an NSArrayController (Project Controller) has its Content Array bound to "File's Owner".projects Project Controller's filter predicate is bound to "File's Owner".filter NSTableView's column is bound to "Project Controller".name

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• Is it possible to convert Gregorian to Hijri date in Vb ?

  - by ahmed

  Hi, I have a table in sql where the date format is stored in Hijri. Now I am working on a vb.net application where I have to let the user update that dateField. So is it possible that if I place a datepicker(which is in Gregorian) and user selects the date and its converts into Hijri date before updating. I mean when the user selects the date and clicks the save button the date should be updated in hijri format in the sql . For now , the user is entering the date manually on a tms AdvEdit. Is there any code available to accomplish this task. Thanking you all in advance for your time and consideration.

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• Java Caching on distributed environment

  - by Naren

  Hi, I am supposed to create a simple replicated cache using java for internal purpose which will be used in a distributed environment. I have seen oracle has implemented Replicated Cache Service. http://wiki.tangosol.com/display/COH32UG/Replicated+Cache+Service The problem I am facing is while doing an update or remove, I acquire lock on other cache's to the point the cache get's updated and notifies others of the change. This is eventually going into a dead lock situation, while removing. Is there any strategy I should follow while updating or removing from cache's. Can I implement a replicated cache without having a primary cache?? Thanks, Naren

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• Getting value of "System.Windows.Controls.TextBlock" when binding to Silverlight ComboBox

  - by sipwiz

  I'm attempting to use a Silverlight ComboBox with a static list of elements in a very simple binding scenario. The problem is the selected item is not returning me the Text of the TextBlock within the ComboBox and is instead returning "System.Windows.Controls.TextBlock". My XAML is: <ComboBox SelectedValue="{Binding Country, Mode=TwoWay, NotifyOnValidationError=True, ValidatesOnExceptions=True}"> <TextBlock FontSize="11" Text="Afghanistan" /> <TextBlock FontSize="11" Text="Albania" /> <TextBlock FontSize="11" Text="Algeria" /> </ComboBox> In my C# file I'm binding to the ComboBox using: Customer customer = new Customer() { Country = "Albania" }; DataContext = customer; The binding does not result in Albania as the selected country and updating the ComboBox choice results in the Country being set to "System.Windows.Controls.TextBlock". I've tried fiddling around with DisplayMemberPath and SelectedValuePath but haven't found the answer. I suspect it's something really simple I'm missing.

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• Help me refactoring this nasty Ruby if/else statement

  - by Suborx

  Hello, so I have this big method in my application for newsletter distribution. Method is for updating rayons and i need to assigned user to rayon. I have relation n:n through table colporteur_in_rayons witch have attributes since_date and _until_date. I am junior programmer and i know this code is pretty dummy :) I appreciated every suggestion. def update rayon = Rayon.find(params[:id]) if rayon.update_attributes(params[:rayon]) if params[:user_id] != "" unless rayon.users.empty? unless rayon.users.last.id.eql?(params[:user_id]) rayon.colporteur_in_rayons.last.update_attributes(:until_date = Time.now) Rayon.assign_user(rayon.id,params[:user_id]) flash[:success] = "Rayon #{rayon.name} has been succesuly assigned to #{rayon.actual_user.name}." return redirect_to rayons_path end else Rayon.assign_user(rayon.id,params[:user_id]) flash[:success] = "Rayon #{rayon.name} has been successfully assigned to #{rayon.actual_user.name}." return redirect_to rayons_path end end flash[:success] = "Rayon has been successfully updated." return redirect_to rayons_path else flash[:error] = "Rayon has not been updated." return redirect_to :back end end

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• rails expiring cache

  - by ash34

  Hi, I entered some products data into a table using a migration. I need to expire the page and fragment cache when I update, add, delete products from this table. I created a sweeper for this. class ProductSweeper < ActionController::Caching::Sweeper observe Product def after_create expire_cache end def after_save expire_cache end def after_update expire_cache end def after_destroy expire_cache end private def expire_cache expire_page(:controller => 'ProductsController', :action => 'index') expire_fragment 'listed_products' end end Then in script/console I update the product name and saved. When I reload my app in the browser it still gives me a cache hit. Cached fragment hit: views/listed_products (0.2ms) Can someone tell me how to expire this cache. I will not be adding, updating, deleting products through a controller action. thanks, ash

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• j2ME setLocationListener()

  - by Jeff Catania

  I'm programming a GPS tracking system using the Motorola i335 running on Sprint's IDEN network. I'm using the javax.microedition.location api to find the GPS coordinates. To set up the updating, you use the [setLocationListener][1] method. I originally tried passing (listener,2,1,1). However there was too many invalid locations being received (where the GPS could not get the fix in the specified time), so I changed the parameters to (listener, 20, 20, 1). Now the system barely throws any invalid locations. My goal is to get the fastest number of updates that are realistic. Have any of you found a happy medium for parameters of this method? [1]: http://www-users.cs.umn.edu/~czhou/docs/jsr179/lapi/javax/microedition/location/LocationProvider.html#setLocationListener(javax.microedition.location.LocationListener, int, int, int)

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• Showing value of UISlider inside App Prefs?

  - by Garrett H

  I have a settings bundle, working perfectly, that I would like to customize a bit. I have, among other things, a PSSliderSpecifier and a PSTitleValueSpecifier. What I would like to do is change the value of the PSTitleValueSpecifier to show the current value of the slider, preferably updating every time the slider's value changes (Actually, what I'd like even more would be displaying the slider's value on the same row as the slider). I know the settings bundle is rather strict about what you're allowed to do in it, but is there any way of doing this?

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