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• running an outside program (executable) in python?

  - by Mesut

  Hello all, I just started working on python and I have been trying to run an outside executable form python. I have an executable for a program written in Fortran. Lets say the name for the executable is flow.exe. And my executable is lacated in C:\Documents and Settings\flow_model I tried both os.system and popen commands but so far couldnt make it work. The following code seems like opens the command window but wouldnt execute the model. # Import system modules import sys, string, os, arcgisscripting os.system("C:/Documents and Settings/flow_model/flow.exe") Any suggestions out there? Any help would be greatly appreciated.

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• Consuming web service from BizTalk with authentication credentials

  - by lox

  I am trying to consume a web service from BizTalk by supplying credentials in the SOAP adapter port. I type in the Web Service URL and then I have the choice of Anonymous, Basic, Digest and NTLM authentication types. How do I supply my username, password and domain?.. when testing with soapUI it works perfectly. The only way I get to supply credentials is Basic or Digest but no matter what I fill in I get a "not authroized" error. The strange thing is that it actually works when I choose the NTLM authentication type but how does it get acces when I have not supplied the credentials. And there is no way that my server has direct access to the service?

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• Optimizing a large iteration of PHP objects (EAV-based)

  - by Aron Rotteveel

  I am currently working on a project that utilizes the EAV model. This turns out to work quite well, but like many others I am now stumbling upon some performance issues. The data set in this particular case consists of aproximately 2500 entities, each with aprox. 150 attributes. Each entity and each attribute is represented by a PHP-object. Since most parts of the application only iterate through a filtered set of entities, we have not had very large issues yet. Now, however, I am working on an algorithm that requires iteration over the entire dataset, which causes a major impact on performance. This information is perhaps not very much to work with, but since this is an architectural problem, I am hoping for a architectural pattern to help me on the way as well. Each entity, including it's attributes takes up aprox. 500KB of memory.

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• Why eGet() in EMF returns Object rather than EObject?

  - by Gabriel Šcerbák

  I am working on some code using the EMF framework in Java, but it is really hard to use, e.g. I cannot implement OCL-like query API on top of EMF which would be type-safe. One of the reasons is that eGet() for a EStructuralFeature return just an Object, not EObject. So anything I would write must use much of null checking, type checking and type casting which is unsafe, not performant and cannot be generalized in a reusable way. Why doesn't EMF generate dummy implementations with EObject wrappers for arbitrary Object value? Implementing the EObject and hence the EClass interfaces even with simple throw UnsupportedOperationException is really a pain (the APIs are too big). The same holds for the eContainer() method which makes navigatinng the model upwards painful.

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• Mock Repository vs. Real Repository w/Mocked Data

  - by n8wrl

  I must be doing something fundamentally wrong. I am implmenting my repositories and then testing them with mocked data. All is well. Now I want to test my domain objects so I point them at mock repositories. But I'm finding that I have to re-implement logic from the 'real' repositories into the mocks, or, create 'helper classes' that encapsulate the logic and interact with the repositories (real or mock), and then I have to test those too. So what am I missing - why implement and test mock repositories when I could use the real ones with mocked data? EDIT: To clarify, by 'mocked data' I do not hit the actual database. I have a 'DB mock layer' I can insert under the real repositories that returns known-data.

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• iBatis mapping: map a string field into a List<String>

  - by Roberto

  Hi all, is it possible to map a string field with a particular format like: aaa,bbb,ccc,ddd into a List having elements [aaa, bbb, ccc, ddd] using iBatis? What I need is to have in my model something like: public class Request{ private List<String> fieldOne; public List<String> getFieldOne(){....} public void setFieldOne(){....} } even if in my table the field is a simple string. Is this possible? Thanks Roberto

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• Django models avaoid duplicates

  - by Hulk

  In models, class Getdata(models.Model): title = models.CharField(max_length=255) state = models.CharField(max_length=2, choices=STATE, default="0") name = models.ForeignKey(School) created_by = models.ForeignKey(profile) def __unicode__(self): return self.id() In templates <form> <input type="submit" save the data/> </form> If the user clicks on the save button and the above data is saved in the table how to avoid the duplicates,i.e, if the user again clicks on the same submit button there should not be another entry for the same values.Or is it some this that has to be handeled in views Thanks..

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• Entity Framework Performance Problem

  - by Steve Horn

  I'm hoping that someone can help me understand how to overcome a performance problem I'm running into with the latest version of the Entity Framework. In my test, I created my model from a database consisting of around 80 tables. The problem that I'm running into is that the cost of the very first query I run on a thread is very expensive. If I run without pre-compiling views the first query takes anywhere from 5800 to 6600 milliseconds. If I pre-compile the views (see this article) I can get the initial query cost down to about 2800 to 3200 milliseconds. 3 seconds for each request is still unacceptable for my needs. Subsequent queries are very fast. Can you please help me understand how to eliminate the poor performance of the initial query? I'm using the version of entity framework that ships with Visual Studio 2010 RC.

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• Faking a dynamic schema in Core Data?

  - by Gouldsc

  From reading the Apple Docs on Core Data, I've learned that you should not use Core Data when you need a dynamic schema. If I wanted to provide the user the ability to create their own properties, in a core data model would it work if I created some "dummy" attributes like "custom decimal 1", "custom decimal 2", "custom text 1", "custom text 2" etc that the user could name and use for their own purposes? Obviously this won't work for relationships, but for simple properties it seems like a reasonable workaround. Will creating a bunch of dummy attributes on my entities that go unused by most users noticeably decrease performance for them? Have any of you tried something like this? Thanks!

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• Validating only selected fields using ASP.NET MVC 2 and Data Annotations

  - by thinknow

  I'm using Data Annotations with ASP.NET MVC 2 as demonstrated in this post: http://weblogs.asp.net/scottgu/archive/2010/01/15/asp-net-mvc-2-model-validation.aspx Everything works fine when creating / updating an entity where all required property values are specified in the form and valid. However, what if I only want to update some of the fields? For example, let's say I have an Account entity with 20 fields, but I only want to update Username and Password? ModelState.IsValid validates against all the properties, regardless of whether they are referenced in the submitted form. How can I get it to validate only the fields that are referenced in the form?

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• How to organize Enterprise scale Composite Applications (CAG)

  - by David

  All QuickStarts and RI examples in the CAG documentation are good but I lack the more Enterprise scale examples. Let's say we have 40+ modules, each containing a Proxy,Facade,PresentationModel,Model and Views. Each module also makes calls to a Module-specific WCF service which is to be hosted in IIS or in a stand-alone console host. Our approach have been to include the UI-module, service-module and related tests into one solution so they can be developed and tested separately from other modules. My problem is how the hosting of the services should be done when the services are in separate modules and how to actually run the separate module together with the rest of the application-modules when I press F5. Is there a best practise for this? I guess it has been done before?

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• How to track my flash video player embed on other sites

  - by Dragomir Dan

  Setup: an online tv channel with "youtube" like clips and categories our own flash video player which can be embeded into other remote sites as2 flash player Goal: To track who's embeding my videos, at least with basic statistics per domain. Since it's AS2, it's harder to do this. My ideea is that I can create a php page which should be opened each time the player loads on any website; than the flash player can do a "geturl" of the php file which has Google Analytics code or some other decent tracker. The geturl command could contain a variable like the Video Title which already is included in the player; and this title would pass on with GET to the php file and setup a dynamic page title which can be tracked very well. Problem: how to i use the GETURL function without have user's browser open a new tab or window. Is there any hidden way to do it?

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• Using Google Apps gmail with Symfony nahomail plugin

  - by bobo

  My boss asks me to update a domain to adopt Google Apps, now everything has been done except the website is still not updated to use the Google Apps gmail server. The website is running on Symfony 1.4.x but it is not the latest 1.4.x version, and it does not have Swiftmailer included. It now sends email (e.g. user registration confirm email) using the nahomail plugin. Now I would like to make it send email using the Google Apps gmail server. The website is going to be abandoned after a few months, for simplicity, I am going to do an update directly on the production server and so I am trying to avoid as many trial-and-errors as possible. I wonder if anyone is actually using this plugin and can share the nahomail settings for gmail server that has been working nicely. Many thanks to you all.

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• Verbose Listing of All Application Layers/Tiers?

  - by leeand00

  I've looked at a few sites now, and I'm still struggling to find a complete listing of all the possible layers/tiers you can have in an application. From back in college (1999) I remember the following: Presentation Layer (Views) Application Layer (Controllers) Business Logic Layer (API/Rules) Persistence Layer (Database/Object Persistence/Model) I'm not advocating that they all be used...especially when you consider that too many layers/tiers could lead to an increase in complexity...I just wondered what the complete list might look like... Based on a couple of blogs I've found several different answers...and Javascript and client side technologies seem to have leaked in adding more client-side layers according to one blog the client side tier might even consist of Behavior Layer (Javascript, Flash) Presentation Layer (CSS/Images) Note: I though the entire client side layer was the presentation layer Structure Layer (XHTML, HTML) I'm just trying to get an abstract idea of what all the possible layers might be, (even though some people call them different things)

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• iphone core data app crash

  - by satyam

  I'm able to complete my iphone app using core data internally. But for the first time when I'm running in simulator or on device its crashing with following error: 2010-03-18 10:55:41.785 CrData[1605:4603] Unresolved error Error Domain=NSCocoaErrorDomain Code=513 UserInfo=0x50448d0 "Operation could not be completed. (Cocoa error 513.)", { NSUnderlyingException = Error validating url for store; } When I run the app again in simulator or on device, its running perfectly. I'm not able to identify the exact problem. Can some one guide me on how to proceed further???

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• Django models avoid duplicates

  - by Hulk

  In models, class Getdata(models.Model): title = models.CharField(max_length=255) state = models.CharField(max_length=2, choices=STATE, default="0") name = models.ForeignKey(School) created_by = models.ForeignKey(profile) def __unicode__(self): return self.id() In templates <form> <input type="submit" save the data/> </form> If the user clicks on the save button and the above data is saved in the table how to avoid the duplicates,i.e, if the user again clicks on the same submit button there should not be another entry for the same values.Or is it some this that has to be handeled in views Thanks..

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• CSS Vertical Spacing Issue (Margin?) - Vertical Space Between Two Divs

  - by Sootah

  I've got the layout of my site mostly done. On the domain I'm testing this layout on - http://networkgenius.org/ - there is a vertical space separating the content-wrapper div and the menu div. I have the margins set to 0px for the vertical spacing, and this is the only area that is separated like it is. I'd like the white content area to be pressed up right against the bottom of the menu, so that none of the body's background shows between them. What am I doing wrong?

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• Scripting Bridge generates error creating a new playlist in iTunes on 10.5, but not 10.6

  - by Simone Manganelli

  I'm having a problem with the Scripting Bridge framework in 10.5. Specifically, I use this code to create a new user playlist in iTunes: NSDictionary *propertiesDict = [NSDictionary dictionaryWithObject:@"playlistName" forKey:@"name"]; playlistToReturn = (iTunesUserPlaylist*)[[[iTunesApp classForScriptingClass:@"user playlist"] alloc] initWithProperties:propertiesDict]; SBElementArray *sourcesArray = [iTunesApp sources]; iTunesSource *librarySource = [sourcesArray objectAtIndex:0]; SBElementArray *userPlaylistsArray = [librarySource userPlaylists]; [userPlaylistsArray addObject:playlistToReturn]; This code works fine in 10.6. The playlist is created correctly, and I can add songs to it later. However, on 10.5, an error is generated: Apple event:'core'\'crel'{ 'kocl':'cUsP', 'insh':'insl'{ 'kobj':'obj '{ 'want':'cUsP', 'from':'obj '{ 'want':'cSrc', 'from':'null'(), 'form':'ID ', 'seld':42 }, 'form':'indx', 'seld':'abso'($206C6C61$) }, 'kpos':'end ' }, 'prdt':{ 'pnam':'utxt'("playlistName") } }; Error Domain=SBError Code=-10014 UserInfo=0x152c8cb0 "Operation could not be completed. (SBError error -10014.)" Why?

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• PHP Explode: How to Download and Split a Specific HTML Part?

  - by elmaso

  Hello, example: at this domain http://www.example.com/234234/go.html is only one iframe-code how can i get the url in the iframe-code? go.html: <iframe style="width: 99%;height:80%;margin:0 auto;border:1px solid grey;" src="i want this url" scrolling="auto" id="iframe_content"></iframe> i have this snippet, but its very bad coded.. function downloadlink ($d_id) { $res = @get_url ('' . 'http://www.example.com/' . $d_id . '/go.html'); $re = explode ('<iframe', $res); $re = explode ('src="', $re[1]); $re = explode ('"', $re[1]); $url = $re[0]; return $url; } thank you!

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• What to write in "Web location" field when starting an "New website" in Visual Studio 2010?

  - by Ivan

  I want a website to be deployed automatically to a local IIS (built in Windows XP Pro SP3), avoiding VisualStudio-built-in server if possible. I'd like development source files to be stored in a project folder outside wwwroot (I wouldn't mind built files to be copied to wwwroot each time I press F5). I don't store my projects inside default directories inside "My documents". What should I specify as in "Web location" when starting an "New website" in Visual Studio 2010? A deployment path in wwwroot, a folder where I'd like to save my project, or something else? I want the website to be a part of a complex solution in VS 2010, also icludinc a class libray project, a WinForms application project, a Windows Service project and a common Entitity Framework data model.

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• Creating CCD document from scratch (JAVA)

  - by Nikhil Patil

  Hi, I'm trying to build a CCD document. My application has some raw data which has to be converted into a CCD document. And I've no idea where I should start from!! From this thread I learned that MDHT and Braid can be used to create a CCD document. But thats all I could grasp. I thought that I need a CCD XSD, a java library which will transform my raw data into a CCD document using this XSD ( or may be the library itself takes care of it ). But I'm stuck at both. I suppose the CCD XSD has to be purchased. If I get hold of the XSD, how should I proceed ahead? I got really confused reading the Braid and MDHT sites. Sorry, I'm a complete nOOb in this domain. Can anyone guide me?

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• Is there a way to undo Mocha stubbing of any_instance in Test::Unit

  - by Craig Walker

  Much like this question, I too am using Ryan Bates's nifty_scaffold. It has the desirable aspect of using Mocha's any_instance method to force an "invalid" state in model objects buried behind the controller. Unlike the question I linked to, I'm not using RSpec, but Test::Unit. That means that the two RSpec-centric solutions there won't work for me. Is there a general (ie: works with Test::Unit) way to remove the any_instance stubbing? I believe that it's causing a bug in my tests, and I'd like to verify that.

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• Anyone use Distributed VCS in a corporate environment?

  - by Eddie Parker

  I'm curious to hear about people's experiences with distributed version control in a corporate environment. Specifically: Was it difficult to gain adoption? Now that it's in place, is it well liked? What 'model' are you using (hub & spoke? Something else?) Allowing you use hub & spoke, are there any discipline problems with pushing to a central server? I'd like to hear if anyone has non-programmers working within this environment, preferably artists and the like to whom VCS can be a bit daunting. Did it work out for them?

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• PropertyChanged doesn't work properly

  - by Karen

  Hello, I have a Silverlight application in which I implemented MVVM pattern. In my application there is a child window on which I have ComboBox. I bound ItemsSource and SelectedItem of my combobox to a property (typeof ObservableCollection) and property of MyType appropriately. MyType is a "MODEL" derived from INotifyPropertyChanged. When my window is loaded I set values to this properties. But my combobox doesn't display selected item. I found that when I set property which is bound to selected item (in ViewModel), the PropertyChanged event is null. Can anyone help me. Thanks.

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• How to get objects after CoreData Context merged

  - by Emmettoc

  Hi, I tried to save data and merge with CoreData and multi-thread for iPhone app. But I can't get managed objects in the main thread after merging. I wrote code just like this: [managedObjectContext performSelectorOnMainThread:@selector(mergeChangesFromContextDidSaveNotification:) withObject:notification waitUntilDone:YES]; [self performSelectorOnMainThread:@selector(didMerged:) withObject:objectIds waitUntilDone:YES]; So I tried to pass objectIds to get NSManagedObject instances in the main thread which were generated in another thread. At first I tried "objectWithId" method but it generated fault objects. Then I tried "existingObjectWithID" method but it generated objects partly and others were nil with following Error: [Error] Error Domain=NSCocoaErrorDomain Code=133000 "Operation could not be completed. (Cocoa error 133000.)" What is wrong? Is there any way how to retrieve all objects by objectIds after merging in another thread? Thank you.

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