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• web2py or grok (zope) on a big portal,

  - by Robert

  Hi, I am planning to make some big project (1 000 000 users, approximately 500 request pre second - in hot time). For performance I'm going to use no relational dbms (each request could cost lot of instructions in relational dbms like mysql) - so i can't use DAL. My question is: how web2py is working with a big traffic, is it work concurrently? I'm consider to use web2py or Gork - Zope, How is working zodb(Z Object Database) with a lot of data? Is there some comparison with object-relational postgresql? Could you advice me please.

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• POCO Best Practice

  - by Paul Johnson

  All, I have a series of domain objects (project is NHibernate based). Currently as per 'good practice' they define only the business objects, comprising properties and methods specific to each objects function within the domain. However one of the objects has a requirement to send an SMTP message. I have a simple SMTP client class defined in a separate 'Utilities' assembly. In order to use this mail client from within the POCO, I would need to hold a reference to the utilities assembly in the domain. My query is this... Is it a departure from best practice to hold such a reference in a POCO, for the purpose of gaining necessary business functionality. Kind Regards Paul J.

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• Organising asp.net website development process

  - by ZX12R

  Is there a standard practice to organize the process of developing a simple website. there is no use implementing MVC as there is no data base involved. It will be very useful in organizing the project and separating the aspx files and master page content(this can be very useful in implementing simple cms techniques) user controls scripts styles images is there any industry standard or best practice for this.? thanks in advance :) Update: yes the way i have listed is convenient. but it would be great if i could separate server codes and files like master,aspx.. and the actual page content. One more reason for not using MVC: I usually outsource the SEO process. Now an MVC application can be greek/latin for my SEO expert. :)

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• Game cross-compiling and packaging

  - by Helltone

  Hi, Some friends and I wanted to develop a game. Any language will do. I've been programming in C for years, but never wrote a game before. One of us knows SDL a little bit. It would also be a nice excuse to learn Python+pygame. We wish our game to be 'standalone'. By standalone, I mean most users (at least Linux, Mac and Windows) will not have to manually download and install anything else apart from a package. It is ok if the installation automatically handles missing dependencies. If the packages contain binaries, we wish to be able to generate them using cross-compilation from Linux. How should we package and structure the project, and what language is best suited?

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• Wpf Login System

  - by neki

  Hi everyone. i am developing a training software in wpf. but i have problems. this application will be setup project. when the user make it work, a login window will open. User should enter his username.there wont be a password. but the problem is next; i dont know how to get userid from database. and compare other usernames to get the right userid. second problem is, when i get right userid from database, how can i use it main window? where can i store this userid. will be this session or something like that? i want this userid because, user will have notpad and questions. thanks in advance. Database(UserInformation table) userid/ username

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• THttprio onBeforeExecute changing the soapRequest

  - by adnan

  I've imported some wsdl for a project. i want to change the SoapRequest on HttpRio onBeforeExecute event, but as i changed the request, im getting some errors how can i change the request xml file with stringReplace function on this event. i've tried to change the size of stream, i ve changed the encoding etc. but anyway it didnt work. example procedure TForm1.RiomBeforeExecute(const MethodName: string; SOAPRequest: TStream); var sTmp : TStringList; begin sTmp:=TStringList.Create; SOAPRequest.Position := 0; sTmp.LoadFromStream(SOAPRequest); sTmp.Text := StringReplace(sTmp.Text,'blablaa','bla',[RfReplaceAll]); sTmp.SaveToStream(SOAPRequest); // blaa blaa... end;

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• System.Security.VerificationException: Operation could destabilize the runtime

  - by Rigobert Song

  I have a web service which is queried using linq to sql but returns an array of objects. I keep getting the following error: System.Security.VerificationException: Operation could destabilize the runtime When I run a method that uses a linq statement to return an array I get this error, but only on my test server, which is windows server 2008. Everything works fine in my win 7 machine. The project is a .net 3.5. Any ideas what the problem might be? Thanks UPDATE: My linq queries return IQueryable.

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• OpenGL view in an iPad splitview

  - by dc

  I'm attempting to add an OpenGL view (such as the one given in Apple's sample code) as the detail view of an iPad's splitview but am running into issues. I've taken the sample code from the base OpenGL project and attempted to add it as a subview of my DetailViewController - ie EAGLView *glview = [[EAGLView alloc] initWithFrame:CGRectMake(0,0,100,100)] but when I add it to the main view and call startAnimating on it, nothing at all happens. Any solutions to this? I have never worked with OpenGL before so perhaps I'm doing this all wrong.

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• Install "Massive Coupon"

  - by ffffff

  I'want to install "Massive Coupon" http://github.com/robstyles/Massive-Coupon---Open-source-groupon-clone I've set up apache2 + mod_wsgi + mysql on Ubuntu 9 And written the following settings.py # Django settings for massivecoupon project. import socket, os . . DATABASE_ENGINE = 'mysql' # 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'. DATABASE_NAME = 'grouponpy' # Or path to database file if using sqlite3. DATABASE_USER = 'grouponpy' # Not used with sqlite3. DATABASE_PASSWORD = 'password' # Not used with sqlite3. DATABASE_HOST = 'localhost' # Set to empty string for localhost. Not used with sqlite3. DATABASE_PORT = '' # Set to empty string for default. Not used with sqlite3. What I have to do additional then?

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• Client side caching in GWT

  - by Silfverstrom

  We have a gwt-client, which recieves quite a lot of data from our servers. Logically, i want to cache the data on the client side, sparing the server from unnecessary requests. As of today i have let it up to my models to handle the caching of data, which doesn't scale very well. It's also become a problem since different developers in our team develop their own "caching" functionality, which floods the project with duplications. I'm thinking about how one could implement a "single point of entry", that handles all the caching, leaving the models clueless about how the caching is handled. Does anyone have any experience with client side caching in GWT? Is there a standard approach that can be implemented?

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• Building XUL app a-la SongBird

  - by Ben

  Hi, I've started exploring XUL Runner as a potential tool for an upcoming app. I can get some good examples running using the command line xulrunner-bin myapp. How can compile it all in a native looking application, like SongBird does. I understand SongBird packages the entire xul runtime with it, and I'm happy with that. I'm just wondering is there are any tool I can use to compile my xul project as a standalone app? Any Mac and/or PC hint much appreciated! EDIT: I guess what I'm looking for is a way to generate a Mac and/or PC XUL stub application (but not an installer). Is there something like that? cheers Ben

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• nsthread in iphone xcode

  - by BibiBuBu

  Good Day! i want to use nsthreads in a project of xcode that will call a function which is for the network access and will check that if the network is there or not, so i need to have a thread which will execute after lets say 1 minutes to check the connectivity. and will continue run unless the app is closed. [NSThread detachNewThreadSelector:@selector(startTheBackgroundJob) toTarget:self withObject:nil]; startTheBackgroundJob NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // wait for 3 seconds before starting the thread, you don't have to do that. This is just an example how to stop the NSThread for some time [NSThread sleepForTimeInterval:5]; //[self performSelectorInBackground:@selector(checkNet) withObject:nil]; [self performSelectorOnMainThread:@selector(checkNet) withObject:nil waitUntilDone:YES]; [pool release]; it works only for the first time but not any other, i mean only 1 loop it makes can somebody help me in this regard. Thanks

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• IM (Instant Messaging) increase or decrease developer's productivity?

  - by GRGodoi

  In my team I have some developers that always have two or three IM windows open. The majority of these windows are not related with the project where they are nor with asking or offering programming help. I also use IM and, off course, some of my "talks" are not related with the job. But I feel that when I am using IM my productivity drops. I mean, there is more "mental" work to change the scope between the task I am doing and the conversation every time a new message arrive. Do you face the same situation? Is there some good practices to avoid this (excluding, off course, stopping using IM)?

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• Ext GWT (GXT) tooltip over a grid row

  - by Eduardo Palma

  I'm developing a custom tooltip using Ext GWT (GXT) for a project of mine, and this tooltip has to appear over Grid rows when they're selected. I can't use the default GXT tooltip or quicktip because I need be able to add Components (like buttons) to this tooltip. The problem is that the GXT Grid component doesn't expose a event related to mousing over a row (although there's RowClick and RowMouseDown). I tried adding a listener to the Grid with the OnMouseOver and OnMouseOut events anyway, but it doesn't work as expected. It fires these events up whenever you mouse over any of the divs and spans that composes a row. The only way I see to solve this is to subclass the GridView component and make each row become a Component itself, but that would be a lot of work and would probably impact performance as well. I can't help but think there's a better way to do this. Could someone more experienced with GXT give me a light?

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• link_to syntax with rails3 (link_to_remote) and basic javascript not working in a rails3 app?

  - by z3cko

  i am wondering if the basic link_to syntax is completely broken in current rails3 master or if i am doing some wrong syntax here. = link_to "name", nil, :onlick => "alert('Hello world!');" should actually produce an alert on click. very simple. does not work on my rails3 project! (also no error output!) any ideas? for the general link_to syntax i could not find an example where i could combine a link_to_remote with a confirmation, remote and html class (see my try below) = link_to "delete", {:action => "destroy", :remote => true, :method => :delete, :confirm => "#{a.title} wirklich L&ouml;schen?" }, :class => "trash" even the rails3 api does not help me here: http://rails3api.s3.amazonaws.com/index.html help!

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• Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data

  - by joebeazelman

  I created an assembly containing WCF service code and dropped into another web project. When I try to invoke a service method, I get the following inner exception: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Why this is happening? My newly created assembly lives inside the ASP.NET /bin folder along with other assemblies. At this level, should the database not know or care whether it is being called from a web service or from a normal call? How would it know that my assembly is foreign? How do I resolve this issue?

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• Read Song Title/Artist from a live audio stream with Silverlight 4?

  - by Brent Pabst

  I have a SL4 project that is successfully streaming a great sounding WMA audio stream from a remote location. All of the MediaElement actions are straight forward. What I want to do is read the attributes that are passed as text along with the Audio stream. For instance the encoder of the stream embeds the title of the stream, the title of the song playing and the name of the artist for the current song. How would I pick this out using Silverlight 4 and then display it in a Label to the user? It sure would be easier than writing a bunch of web services to do the same thing. Windows Media Player and WinAmp all get the information I am just not seeing it in the MediaElement object collection.

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• Brainstorming - MIDI over LAN

  - by Hunter Bridges

  I'm planning out a summer coding project for myself. I work with a lot of MIDI and have been researching it a lot. I know it's an old technology, but it works with a lot of music hardware/software so in my eyes, it's still viable. Anyway, I haven't ever worked with writing drivers or anything, so I don't know where I would start with this. So, provided I have MIDI data already being sent over LAN to a server (I know how to do that part), what steps would it take for the server to channel those received messages to an emulated MIDI device, that could then be accessed in music software and so on? Also, what would it take to also send MIDI data back through the LAN to be received by the device that originally received the message? I'm not really looking for too specific a solution. Really I am just trying to come up with a game plan right now and I need to figure out where/what to research.

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• How to give INSTALLDIR folder permission in WIX?

  - by tete

  I am designing a WIX 3.6 installer project, during the installation we need to grand the user create file permission to the install folder(INSTALLDIR, especially with the default install folder, the Program Files, the user normally can't create file in the installation. We've experienced some failures). I guess it can be achieved by setting a Permission element, with CreateFile property. However, the INSTALLDIR is a directory, and only such elements as CreateFolder, File, FileShare, Registry, ServiceInstall can have permission element. So could anyone tell me how to do that? My directory declaration is something like this: <Directory Id="TARGETDIR" Name="SourceDir"> <Directory Id="ProgramFiles64Folder"> <Directory Id='MANUFACTUREFOLDER' Name='$(var.ManufacturerName)'> <Directory Id="INSTALLDIR" Name="$(var.ProductName)"> Thanks!

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• create a wav file from multiple wav files in delphi

  - by Bayu

  i' ve a problem in doing my final project... i'm having trouble with how to save multiple wav files into 1 wav file.. let's take an example: i have 3 wav files which are the syllables of the word "hospital" : "hos.wav", "pi.wav", and "tal.wav" (sorry if i'm wrong in determining the syllables of the words).. each of those syllable wav files contains utterances of the syllables of the word "hospital" respectively.. my task is to merge those files so that the word hospital could be reproduced from those files. and then to save the merged file to be a new wav file, let say "hospital.wav"..I've done my first task, but not with my second task... does anyone can help me? thx b4..

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• dcommit to SVN in 1 commit after cherry-picking in git

  - by DJ

  I would like to know if there is a clean way to do git-svn dcommit of multiple local commits as 1 commit into subversion. The situation that I have is I am cherry picking some bug fixes changes from our trunk into the maintenance branch. The project preference is to have the bug fixes to be committed as 1 commit in subversion, but I would like to keep the history of changes that I had cherry-picked on my local git for references. Currently what I do is to do all cherry-picking on branch X and then do a squash merge into new branch Y. The dcommit will then be done from branch Y. Is there a better way to do it without using an intermediary branch?

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• PrestaShop vs. Shopify

  - by Zach L.

  I have seen several Questions comparing different ECommerce CMS's: Prestashop compared to Zen-Cart and osCommerce Magento or Prestashop, which is better? Best php/ruby/python e-commerce solution I was hoping to get some people to weigh in with which they prefer for a relatively small E-shop. I am now primarily looking at PrestaShop and Shopify. I really like that Shopify does the hosting, has quality service, and is simple to understand and theme. However PrestaShop is free and seems to be able to do just as much if not more than Shopify. I have decided that Magento is too clunky for the project, and have read that many other solutions (osCommerce, ZenCart, OpenCart) are outdated, buggy, or just inferior. Thank you!

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• Repository pattern - Switch out the database and switch in XML files

  - by glasto red

  Repository pattern - Switch out the database and switch in XML files. Hello I have an asp.net MVC 2.0 project and I have followed the Repository pattern. Periodically, I am losing access to the database server so I want to have another mechanism in place (XML files) to continue developing. It is not possible to have a local version of the db unfortunately! I thought this would be relatively easy using the Repository pattern, to switch out the db repositories and switch in XML versions. However, I am having real trouble coming up with a solution. I have tried LinqToXML but then ran into problems trying to return a List of News items as the LinqToXML ToList returns Generic.List Should I be mapping the XElement list over to the News list by hand? It just seems a bit clunky compared to LinqToSQL attributes on the News class and then simply doing a Table.....ToList(); Any direction would be appreciated. Thanks

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• Rules engine for Silverlight?

  - by frances1983

  At the moment I'm developing a web based application using Silverlight 3.0. For the business rules I'm looking for a rules engine that's both easy to use for me and my users, which will work with SL3. Is something like that available out of the box or will I need to roll my own? I've Googled and looked around the various code sites (Codeplex, Code Project etc), but didn't see anything that suits my needs. I did also have a good long look at NxBRE, but it's Rules syntax is too complex for 'dummy' users.

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• Error: could not locate an NSManagedObjectModel for entity name 'TAB_RSS'

  - by Stephen

  Hello, Does anyone know what does the following error mean: +entityForName: could not locate an NSManagedObjectModel for entity name 'TAB_RSS' I noticed my frameworks were highlighted in red UIKIT.framework, Foundation.framework and CoreGraphics.framework. I've now added these but am getting a warning message stating "missing required architecture i386 in file". I think this may be related to the above error. I found another post that may help me http://stackoverflow.com/questions/1...e-i386-in-file but I can't find my project.pbxproj file. I think i need to edit this and remove references to the FRAMEWORK_SEARCH_PATHS. Stephen

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