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  • SQLAlchemy: a better way for update with declarative?

    - by hadrien
    I am a SQLAlchemy noob. Let's say I have an user table in declarative mode: class User(Base): __tablename__ = 'user' id = Column(u'id', Integer(), primary_key=True) name = Column(u'name', String(50)) When I know user's id without object loaded into session, I update such user like this: ex = update(User.__table__).where(User.id==123).values(name=u"Bob Marley") Session.execute(ex) I dislike using User.__table__, should I stop worrying with that? Is there a better way to do this? Thanx!

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  • Ad-hoc retreival of data from SQL Server varbinary column

    - by Daniel Fortunov
    I would like to retreive some binary data from a varbinary(max) column in a SQL Server database for debugging purposes. What is the easiest way to get this data into a local binary file, preferably without having to write a throw-away console application? I have tried using SQL Server Management Studio but this returns a hex encoded binary string, rather than raw binary data (even with the "results to file" option).

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  • Do the ideas of traditional software engineering conflict with the newer agile development technique

    - by fuentesjr
    So as a developer I am seeking to improve not only my coding skills but my design and management skills. Because of this I'm starting to pay more attention to software engineering practices but i'm not sure where agile development fits into the picture. I can appreciate agility in projects but I wonder whether this conflicts with the traditional ways of software engineering practices and research.

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  • BackgroundWorker Thread in IIS7 - FAIL!

    - by Darren Oster
    Just wondering if anyone has had any trouble using a BackgroundWorker Thread in a site running under IIS 7 in Integrated Pipeline mode? I am trying to use such a beast to update the database schema (admin function, obviously), and it works perfectly in Cassini, but when I deploy to IIS 7, the thread gets about one line of code in and silently ends. Is there a way to tell why a thread ended? Thanks in advance.

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  • Preserving equal sized split view

    - by Gökhan Sever
    Hello, I start GVIM in not-maximized window mode and split its window horizontally making sure the windows are equally sized. How can I preserve this equal-sized split view when I maximize the main GVIM window? Whenever I maximize GVIM forgets that the windows have been equally split. Thanks.

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  • issue while synchronising PHP (reading file) and Ajax (jquery ui slider)

    - by Boris
    Hello, I got an issue while trying to display a jquery UI slider with its range based on a values read with PHP from a text file. Its seems that it's a syncrhonising issue as I get the error: "An attempt was made to use an object that is not, or is no longer, usable" code: 11" Is there a way I can force the jquery UI slider to wait for the value to be present or to work in synchrone mode ? Thanks in advance.

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  • How would I duplicate the Rank function in a Sql Server Compact Edition SELECT statement?

    - by AMissico
    It doesn't look like SQL Server Compact Edition supports the RANK() function. (See Functions (SQL Server Compact Edition) at http://msdn.microsoft.com/en-us/library/ms174077(SQL.90).aspx). How would I duplicate the RANK() function in a SQL Server Compact Edition SELECT statement. (Please use Northwind.sdf for any sample select statements, as it is the only one I can open with SQL Server 2005 Management Studio.)

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  • Is it possible to pass a structure of delegates from managed to native?

    - by Veiva
    I am writing a wrapper for the game programming library "Allegro" and its less stable 4.9 branch. Now, I have done good insofar, except for when it comes to wrapping a structure of function pointers. Basically, I can't change the original code, despite having access to it, because that would require me to fork it in some manner. I need to know how I can somehow pass a structure of delegates from managed to native without causing an AccessViolationException that has occurred so far. Now, for the code. Here is the Allegro definition of the structure: typedef struct ALLEGRO_FILE_INTERFACE { AL_METHOD(ALLEGRO_FILE*, fi_fopen, (const char *path, const char *mode)); AL_METHOD(void, fi_fclose, (ALLEGRO_FILE *handle)); AL_METHOD(size_t, fi_fread, (ALLEGRO_FILE *f, void *ptr, size_t size)); AL_METHOD(size_t, fi_fwrite, (ALLEGRO_FILE *f, const void *ptr, size_t size)); AL_METHOD(bool, fi_fflush, (ALLEGRO_FILE *f)); AL_METHOD(int64_t, fi_ftell, (ALLEGRO_FILE *f)); AL_METHOD(bool, fi_fseek, (ALLEGRO_FILE *f, int64_t offset, int whence)); AL_METHOD(bool, fi_feof, (ALLEGRO_FILE *f)); AL_METHOD(bool, fi_ferror, (ALLEGRO_FILE *f)); AL_METHOD(int, fi_fungetc, (ALLEGRO_FILE *f, int c)); AL_METHOD(off_t, fi_fsize, (ALLEGRO_FILE *f)); } ALLEGRO_FILE_INTERFACE; My simple attempt at wrapping it: public delegate IntPtr AllegroInternalOpenFileDelegate(string path, string mode); public delegate void AllegroInternalCloseFileDelegate(IntPtr file); public delegate int AllegroInternalReadFileDelegate(IntPtr file, IntPtr data, int size); public delegate int AllegroInternalWriteFileDelegate(IntPtr file, IntPtr data, int size); public delegate bool AllegroInternalFlushFileDelegate(IntPtr file); public delegate long AllegroInternalTellFileDelegate(IntPtr file); public delegate bool AllegroInternalSeekFileDelegate(IntPtr file, long offset, int where); public delegate bool AllegroInternalIsEndOfFileDelegate(IntPtr file); public delegate bool AllegroInternalIsErrorFileDelegate(IntPtr file); public delegate int AllegroInternalUngetCharFileDelegate(IntPtr file, int c); public delegate long AllegroInternalFileSizeDelegate(IntPtr file); [StructLayout(LayoutKind.Sequential, Pack = 0)] public struct AllegroInternalFileInterface { [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalOpenFileDelegate fi_fopen; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalCloseFileDelegate fi_fclose; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalReadFileDelegate fi_fread; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalWriteFileDelegate fi_fwrite; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalFlushFileDelegate fi_fflush; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalTellFileDelegate fi_ftell; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalSeekFileDelegate fi_fseek; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalIsEndOfFileDelegate fi_feof; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalIsErrorFileDelegate fi_ferror; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalUngetCharFileDelegate fi_fungetc; [MarshalAs(UnmanagedType.FunctionPtr)] public AllegroInternalFileSizeDelegate fi_fsize; } I have a simple auxiliary wrapper that turns an ALLEGRO_FILE_INTERFACE into an ALLEGRO_FILE, like so: #define ALLEGRO_NO_MAGIC_MAIN #include <allegro5/allegro5.h> #include <stdlib.h> #include <string.h> #include <assert.h> __declspec(dllexport) ALLEGRO_FILE * al_aux_create_file(ALLEGRO_FILE_INTERFACE * fi) { ALLEGRO_FILE * file; assert(fi && "`fi' null"); file = (ALLEGRO_FILE *)malloc(sizeof(ALLEGRO_FILE)); if (!file) return NULL; file->vtable = (ALLEGRO_FILE_INTERFACE *)malloc(sizeof(ALLEGRO_FILE_INTERFACE)); if (!(file->vtable)) { free(file); return NULL; } memcpy(file->vtable, fi, sizeof(ALLEGRO_FILE_INTERFACE)); return file; } __declspec(dllexport) void al_aux_destroy_file(ALLEGRO_FILE * f) { assert(f && "`f' null"); assert(f->vtable && "`f->vtable' null"); free(f->vtable); free(f); } Lastly, I have a class that accepts a Stream and provides the proper methods to interact with the stream. Just to make sure, here it is: /// <summary> /// A semi-opaque data type that allows one to load fonts, etc from a stream. /// </summary> public class AllegroFile : AllegroResource, IDisposable { AllegroInternalFileInterface fileInterface; Stream fileStream; /// <summary> /// Gets the file interface. /// </summary> internal AllegroInternalFileInterface FileInterface { get { return fileInterface; } } /// <summary> /// Constructs an Allegro file from the stream provided. /// </summary> /// <param name="stream">The stream to use.</param> public AllegroFile(Stream stream) { fileStream = stream; fileInterface = new AllegroInternalFileInterface(); fileInterface.fi_fopen = Open; fileInterface.fi_fclose = Close; fileInterface.fi_fread = Read; fileInterface.fi_fwrite = Write; fileInterface.fi_fflush = Flush; fileInterface.fi_ftell = GetPosition; fileInterface.fi_fseek = Seek; fileInterface.fi_feof = GetIsEndOfFile; fileInterface.fi_ferror = GetIsError; fileInterface.fi_fungetc = UngetCharacter; fileInterface.fi_fsize = GetLength; Resource = AllegroFunctions.al_aux_create_file(ref fileInterface); if (!IsValid) throw new AllegroException("Unable to create file"); } /// <summary> /// Disposes of all resources. /// </summary> ~AllegroFile() { Dispose(); } /// <summary> /// Disposes of all resources used. /// </summary> public void Dispose() { if (IsValid) { Resource = IntPtr.Zero; // Should call AllegroFunctions.al_aux_destroy_file fileStream.Dispose(); } } IntPtr Open(string path, string mode) { return IntPtr.Zero; } void Close(IntPtr file) { fileStream.Close(); } int Read(IntPtr file, IntPtr data, int size) { byte[] d = new byte[size]; int read = fileStream.Read(d, 0, size); Marshal.Copy(d, 0, data, size); return read; } int Write(IntPtr file, IntPtr data, int size) { byte[] d = new byte[size]; Marshal.Copy(data, d, 0, size); fileStream.Write(d, 0, size); return size; } bool Flush(IntPtr file) { fileStream.Flush(); return true; } long GetPosition(IntPtr file) { return fileStream.Position; } bool Seek(IntPtr file, long offset, int whence) { SeekOrigin origin = SeekOrigin.Begin; if (whence == 1) origin = SeekOrigin.Current; else if (whence == 2) origin = SeekOrigin.End; fileStream.Seek(offset, origin); return true; } bool GetIsEndOfFile(IntPtr file) { return fileStream.Position == fileStream.Length; } bool GetIsError(IntPtr file) { return false; } int UngetCharacter(IntPtr file, int character) { return -1; } long GetLength(IntPtr file) { return fileStream.Length; } } Now, when I do something like this: AllegroFile file = new AllegroFile(new FileStream("Test.bmp", FileMode.Create, FileAccess.ReadWrite)); bitmap.SaveToFile(file, ".bmp"); ...I get an AccessViolationException. I think I understand why (the garbage collector can relocate structs and classes whenever), but I'd think that the method stub that is created by the framework would take this into consideration and route the calls to the valid classes. However, it seems obviously so that I'm wrong. So basically, is there any way I can successfully wrap that structure? (And I'm sorry for all the code! Hope it's not too much...)

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  • Using PyUNO on Windows and CentOS

    - by Karim
    Is there any way to use OpenOffice's PyUNO without using the version of Python that comes with OpenOffice? I mean, can I install a package (on Windows and CentOS) that uses the version of Python that's already on the server? I'm trying to use OpenOffice in headless mode so that I can do document conversion with a script (ultimately on a hosted server running CentOS) but my development work is being done on Windows and occassionally the Mac). I'm having nothing but trouble getting this to work.

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  • Heroku in real life apps

    - by Victor P
    What is your experience using Ruby on Rails on Heroku in production mode? Apart of the issue of the expensive https, do you see any drawback in the way it manages processes, memory and storage? The people at Heroku is quite nice and I'm sure they are willing to answer my questions, but I would like some opinions in the customer side.

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  • How to partially ftp a file (using ftp, wget with shell scripts or php)?

    - by Dave
    hi, i want to partially download a ftp file. i just need to download lets say 10MB, but after skipping 100MB (for example). In php, http://php.net/manual/en/function.ftp-fget.php this function allows arbitay starting point: bool ftp_fget ( resource $ftp_stream , resource $handle , string $remote_file , int $mode [, int $resumepos = 0 ] ) however it does not allow me to set "how many bytes" i want to download.

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  • MS Stack web host with HIPAA expertice?

    - by AndrewCr
    I'm a consultant, helping a provider of small medical practice management software move to the web. We're looking for a host that has experience with HIPAA-compliance, and supports the MS Web stack (IIS / .net / SQL Server) Can anyone here provide a recommendation of such a hosting company? Thanks, Andrew

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  • Will this static class break in a multi user scenario ?

    - by Perpetualcoder
    Say I make a static class like following with an extension method: public static class MyStaticExtensionClass { private static readonly Dictionary<int, SomeClass> AlgoMgmtDict = new Dictionary<int, SomeClass>(); public static OutputClass ToOutput(this InputClass input) { // clears up the dict // does some kind of transform over the input class // return an OutputClass object } } In a multi user system, will the state management dictionary fail to provide correct values for the transform algorithm? Will a regular class be a better design or shoving the Dictionary inside the method a better design?

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  • Using IBM FileNet Web services in C# Application

    - by acadia
    Hello Experts, Our organization uses IBM FileNet as document management system. FileNet P8 comes with a web services API which can be used in .net Has anyone of you guys tried this? If yes could you please direct me to any resources to kick start? Thanks a ton in advance.

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  • How to retrieve the file previews used by windows explorer in Windows vista and seven?

    - by user193655
    I am developing a Delphi documents management application, so somehow I am giving the user some functionality similar to windows explorer. I would like to know if there is a way to get the preview used by windows explorer. For example windows explorer creates a small thumbnail for a pdf document for example, and displays it when the user chooses to view "big icons". Is there a way to retrieve that preview? MyTImage := GiveMePreviewForFile('C:\Test\File.pdf');

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  • IDE for C application development that you admire most

    - by Manoj Doubts
    I am looking for a good Integrated development environment for developing applictaions in C language for both windows and linux. IDE should have: good interface, easy file management, auto filling and any advanced options. Tell me which IDE you most admire for these tasks For general PC application development For embedded application development in C If you think it is more specific question then you may also take it as a general case. Thanks in advance.

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  • Lightbox Plus Captions Spill Over

    - by Leah Shaune
    I am using Lightbox Plus for wordpress. My captions are spilling over and overlapping the picture when the image is in lightbox mode. The captions are covering the image and the close link, as well as being off-center. Here is my URL: http://dev.andreamarymarshall.com/archives/2012-2/ How do I make the space allowed for the captions bigger? So that in fits at least two lines of text without overlapping anything? Thanks!!

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  • how to clear the the activity stack in android.

    - by Sam
    Hi, im having following application flow in my android app, Login-Home-screen1-screen2-screen3-screen4- logout In the screen4 i've a log out button,which allow user to logout from the application and re login.when i re-logn to the app previous data still be shown,is there way to start the application in fresh when user log out from the app NOTE: all the above activities launch mode set to "single task", regards, Sam.

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