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• Building LMMS: "Configuring incomplete, errors occurred!"

  - by fridojet

  I tried to build Linux MultiMedia studio from the source of the SourceForge git:// repository under Ubuntu 12.04 LTS 32b: git clone git://lmms.git.sourceforge.net/gitroot/lmms/lmms cd lmms git checkout First I tried to install all the required libraries and then I cmaked. - That's what happened on cmake (errors occurred!): [DIR]lmms/build$ cmake .. -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done PROCESSOR: i686 Machine: i686-linux-gnu -- Target host is 32 bit -- Looking for include files LMMS_HAVE_STDINT_H -- Looking for include files LMMS_HAVE_STDINT_H - found -- Looking for include files LMMS_HAVE_STDBOOL_H -- Looking for include files LMMS_HAVE_STDBOOL_H - found -- Looking for include files LMMS_HAVE_STDLIB_H -- Looking for include files LMMS_HAVE_STDLIB_H - found -- Looking for include files LMMS_HAVE_PTHREAD_H -- Looking for include files LMMS_HAVE_PTHREAD_H - found -- Looking for include files LMMS_HAVE_SEMAPHORE_H -- Looking for include files LMMS_HAVE_SEMAPHORE_H - found -- Looking for include files LMMS_HAVE_UNISTD_H -- Looking for include files LMMS_HAVE_UNISTD_H - found -- Looking for include files LMMS_HAVE_SYS_TYPES_H -- Looking for include files LMMS_HAVE_SYS_TYPES_H - found -- Looking for include files LMMS_HAVE_SYS_IPC_H -- Looking for include files LMMS_HAVE_SYS_IPC_H - found -- Looking for include files LMMS_HAVE_SYS_SHM_H -- Looking for include files LMMS_HAVE_SYS_SHM_H - found -- Looking for include files LMMS_HAVE_SYS_TIME_H -- Looking for include files LMMS_HAVE_SYS_TIME_H - found -- Looking for include files LMMS_HAVE_SYS_WAIT_H -- Looking for include files LMMS_HAVE_SYS_WAIT_H - found -- Looking for include files LMMS_HAVE_SYS_SELECT_H -- Looking for include files LMMS_HAVE_SYS_SELECT_H - found -- Looking for include files LMMS_HAVE_STDARG_H -- Looking for include files LMMS_HAVE_STDARG_H - found -- Looking for include files LMMS_HAVE_SIGNAL_H -- Looking for include files LMMS_HAVE_SIGNAL_H - found -- Looking for include files LMMS_HAVE_SCHED_H -- Looking for include files LMMS_HAVE_SCHED_H - found -- Looking for include files LMMS_HAVE_SYS_SOUNDCARD_H -- Looking for include files LMMS_HAVE_SYS_SOUNDCARD_H - found -- Looking for include files LMMS_HAVE_SOUNDCARD_H -- Looking for include files LMMS_HAVE_SOUNDCARD_H - not found. -- Looking for include files LMMS_HAVE_FCNTL_H -- Looking for include files LMMS_HAVE_FCNTL_H - found -- Looking for include files LMMS_HAVE_SYS_IOCTL_H -- Looking for include files LMMS_HAVE_SYS_IOCTL_H - found -- Looking for include files LMMS_HAVE_CTYPE_H -- Looking for include files LMMS_HAVE_CTYPE_H - found -- Looking for include files LMMS_HAVE_STRING_H -- Looking for include files LMMS_HAVE_STRING_H - found -- Looking for include files LMMS_HAVE_PROCESS_H -- Looking for include files LMMS_HAVE_PROCESS_H - not found. -- Looking for include files LMMS_HAVE_LOCALE_H -- Looking for include files LMMS_HAVE_LOCALE_H - found -- Looking for Q_WS_X11 -- Looking for Q_WS_X11 - found -- Looking for Q_WS_WIN -- Looking for Q_WS_WIN - not found. -- Looking for Q_WS_QWS -- Looking for Q_WS_QWS - not found. -- Looking for Q_WS_MAC -- Looking for Q_WS_MAC - not found. -- Found Qt4: /usr/bin/qmake (found suitable version "4.8.1", required is "4.6.0;COMPONENTS;QtCore;QtGui;QtXml;QtNetwork") -- Found Qt translations in /usr/share/qt4/translations -- checking for module 'sndfile>=1.0.11' -- found sndfile, version 1.0.25 -- Looking for include files CMAKE_HAVE_PTHREAD_H -- Looking for include files CMAKE_HAVE_PTHREAD_H - found -- Looking for pthread_create in pthreads -- Looking for pthread_create in pthreads - not found -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Found Threads: TRUE -- Found libzip: /usr/lib/libzip.so -- Found libflac++: /usr/lib/i386-linux-gnu/libFLAC.so;/usr/lib/i386-linux-gnu/libFLAC++.so -- Found STK: /usr/lib/i386-linux-gnu/libstk.so -- checking for module 'portaudio-2.0' -- found portaudio-2.0, version 19 -- Found Portaudio: portaudio;asound;m;pthread -- checking for module 'libpulse' -- found libpulse, version 1.1 -- Found PulseAudio Simple: /usr/lib/i386-linux-gnu/libpulse.so -- Looking for vorbis_bitrate_addblock in vorbis -- Looking for vorbis_bitrate_addblock in vorbis - found -- Found OggVorbis: /usr/lib/i386-linux-gnu/libogg.so;/usr/lib/i386-linux-gnu/libvorbis.so;/usr/lib/i386-linux-gnu/libvorbisfile.so;/usr/lib/i386-linux-gnu/libvorbisenc.so -- Looking for snd_seq_create_simple_port in asound -- Looking for snd_seq_create_simple_port in asound - found -- Found ALSA: /usr/lib/i386-linux-gnu/libasound.so -- Looking for include files LMMS_HAVE_MACHINE_SOUNDCARD_H -- Looking for include files LMMS_HAVE_MACHINE_SOUNDCARD_H - not found. -- Looking for include files LMMS_HAVE_LINUX_AWE_VOICE_H -- Looking for include files LMMS_HAVE_LINUX_AWE_VOICE_H - not found. -- Looking for include files LMMS_HAVE_AWE_VOICE_H -- Looking for include files LMMS_HAVE_AWE_VOICE_H - not found. -- Looking for include files LMMS_HAVE__USR_SRC_SYS_I386_ISA_SOUND_AWE_VOICE_H -- Looking for include files LMMS_HAVE__USR_SRC_SYS_I386_ISA_SOUND_AWE_VOICE_H - not found. -- Looking for include files LMMS_HAVE__USR_SRC_SYS_GNU_I386_ISA_SOUND_AWE_VOICE_H -- Looking for include files LMMS_HAVE__USR_SRC_SYS_GNU_I386_ISA_SOUND_AWE_VOICE_H - not found. -- Looking for C++ include sys/asoundlib.h -- Looking for C++ include sys/asoundlib.h - found -- Looking for C++ include alsa/asoundlib.h -- Looking for C++ include alsa/asoundlib.h - found -- Looking for snd_pcm_resume in asound -- Looking for snd_pcm_resume in asound - found -- checking for module 'jack>=0.77' -- found jack, version 0.121.2 -- checking for module 'fftw3f>=3.0.0' -- package 'fftw3f>=3.0.0' not found CMake Error at /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:266 (message): A required package was not found Call Stack (most recent call first): /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:320 (_pkg_check_modules_internal) CMakeLists.txt:309 (PKG_CHECK_MODULES) -- checking for module 'fluidsynth>=1.0.7' -- found fluidsynth, version 1.1.5 -- Looking for include files LMMS_HAVE_LV2CORE -- Looking for include files LMMS_HAVE_LV2CORE - found -- Looking for include files LMMS_HAVE_SLV2_SCALEPOINTS_H -- Looking for include files LMMS_HAVE_SLV2_SCALEPOINTS_H - not found. -- Looking for slv2_world_new in slv2 -- Looking for slv2_world_new in slv2 - found -- Looking for librdf_new_world in rdf -- Looking for librdf_new_world in rdf - found -- Looking for wine_init in wine -- Looking for wine_init in wine - found -- Looking for C++ include windows.h -- Looking for C++ include windows.h - found -- checking for module 'samplerate>=0.1.7' -- package 'samplerate>=0.1.7' not found -- Performing Test HAVE_LRINT -- Performing Test HAVE_LRINT - Success -- Performing Test HAVE_LRINTF -- Performing Test HAVE_LRINTF - Success -- Performing Test CPU_CLIPS_POSITIVE -- Performing Test CPU_CLIPS_POSITIVE - Failed -- Performing Test CPU_CLIPS_NEGATIVE -- Performing Test CPU_CLIPS_NEGATIVE - Success -- Looking for XOpenDisplay in /usr/lib/i386-linux-gnu/libX11.so;/usr/lib/i386-linux-gnu/libXext.so -- Looking for XOpenDisplay in /usr/lib/i386-linux-gnu/libX11.so;/usr/lib/i386-linux-gnu/libXext.so - found -- Looking for gethostbyname -- Looking for gethostbyname - found -- Looking for connect -- Looking for connect - found -- Looking for remove -- Looking for remove - found -- Looking for shmat -- Looking for shmat - found -- Looking for IceConnectionNumber in ICE -- Looking for IceConnectionNumber in ICE - found -- Found X11: /usr/lib/i386-linux-gnu/libX11.so -- Found Freetype: /usr/lib/i386-linux-gnu/libfreetype.so Installation Summary -------------------- * Install Directory : /usr/local * Use system's libsamplerate : Supported audio interfaces -------------------------- * ALSA : OK * JACK : OK * OSS : OK * PortAudio : OK * PulseAudio : OK * SDL : OK Supported MIDI interfaces ------------------------- * ALSA : OK * OSS : OK * WinMM : <not supported on this platform> Supported file formats for project export ----------------------------------------- * WAVE : OK * OGG/VORBIS : OK * FLAC : OK Optional plugins ---------------- * SoundFont2 player : OK * Stk Mallets : OK * VST-instrument hoster : OK * VST-effect hoster : OK * LV2 hoster : OK * CALF LADSPA plugins : OK * CAPS LADSPA plugins : OK * CMT LADSPA plugins : OK * TAP LADSPA plugins : OK * SWH LADSPA plugins : OK * FL .zip import : OK ----------------------------------------------------------------- IMPORTANT: after installing missing packages, remove CMakeCache.txt before running cmake again! ----------------------------------------------------------------- -- Configuring incomplete, errors occurred! Here are some parts the contents of my lmms/build/CMakeCache.txt file: # This is the CMakeCache file. # For build in directory: /home/jk/Downloads/lmms-git/lmms/build # It was generated by CMake: /usr/bin/cmake # You can edit this file to change values found and used by cmake. # If you do not want to change any of the values, simply exit the editor. # If you do want to change a value, simply edit, save, and exit the editor. # The syntax for the file is as follows: # KEY:TYPE=VALUE # KEY is the name of a variable in the cache. # TYPE is a hint to GUI's for the type of VALUE, DO NOT EDIT TYPE!. # VALUE is the current value for the KEY. ######################## # EXTERNAL cache entries ######################## //Path to a file. ALSA_INCLUDES:PATH=/usr/include //Path to a library. ASOUND_LIBRARY:FILEPATH=/usr/lib/i386-linux-gnu/libasound.so //Path to a program. CMAKE_AR:FILEPATH=/usr/bin/ar //Choose the type of build, options are: None(CMAKE_CXX_FLAGS or // CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel. CMAKE_BUILD_TYPE:STRING= //Enable/Disable color output during build. CMAKE_COLOR_MAKEFILE:BOOL=ON //CXX compiler. CMAKE_CXX_COMPILER:FILEPATH=/usr/bin/c++ //Flags used by the compiler during all build types. CMAKE_CXX_FLAGS:STRING= //Flags used by the compiler during debug builds. CMAKE_CXX_FLAGS_DEBUG:STRING=-g //Flags used by the compiler during release minsize builds. CMAKE_CXX_FLAGS_MINSIZEREL:STRING=-Os -DNDEBUG //Flags used by the compiler during release builds (/MD /Ob1 /Oi // /Ot /Oy /Gs will produce slightly less optimized but smaller // files). CMAKE_CXX_FLAGS_RELEASE:STRING=-O3 -DNDEBUG //Flags used by the compiler during Release with Debug Info builds. CMAKE_CXX_FLAGS_RELWITHDEBINFO:STRING=-O2 -g //C compiler. CMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc //Flags used by the compiler during all build types. CMAKE_C_FLAGS:STRING= //Flags used by the compiler during debug builds. CMAKE_C_FLAGS_DEBUG:STRING=-g //Flags used by the compiler during release minsize builds. CMAKE_C_FLAGS_MINSIZEREL:STRING=-Os -DNDEBUG //Flags used by the compiler during release builds (/MD /Ob1 /Oi // /Ot /Oy /Gs will produce slightly less optimized but smaller // files). CMAKE_C_FLAGS_RELEASE:STRING=-O3 -DNDEBUG //Flags used by the compiler during Release with Debug Info builds. CMAKE_C_FLAGS_RELWITHDEBINFO:STRING=-O2 -g //Flags used by the linker. CMAKE_EXE_LINKER_FLAGS:STRING=' ' //Flags used by the linker during debug builds. CMAKE_EXE_LINKER_FLAGS_DEBUG:STRING= //Flags used by the linker during release minsize builds. CMAKE_EXE_LINKER_FLAGS_MINSIZEREL:STRING= //Flags used by the linker during release builds. CMAKE_EXE_LINKER_FLAGS_RELEASE:STRING= //Flags used by the linker during Release with Debug Info builds. CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO:STRING= //Enable/Disable output of compile commands during generation. CMAKE_EXPORT_COMPILE_COMMANDS:BOOL=OFF //Install path prefix, prepended onto install directories. CMAKE_INSTALL_PREFIX:PATH=/usr/local //Path to a program. CMAKE_LINKER:FILEPATH=/usr/bin/ld //Path to a program. CMAKE_MAKE_PROGRAM:FILEPATH=/usr/bin/make //Flags used by the linker during the creation of modules. CMAKE_MODULE_LINKER_FLAGS:STRING=' ' //Flags used by the linker during debug builds. CMAKE_MODULE_LINKER_FLAGS_DEBUG:STRING= //Flags used by the linker during release minsize builds. CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL:STRING= //Flags used by the linker during release builds. CMAKE_MODULE_LINKER_FLAGS_RELEASE:STRING= //Flags used by the linker during Release with Debug Info builds. CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO:STRING= ==[...]== That's a list of the contents of my lmms/build folder: [DIR]lmms/build$ dir CMakeCache.txt CPackSourceConfig.cmake lmmsconfig.h plugins CMakeFiles data lmms.rc CPackConfig.cmake include lmmsversion.h My Question: It just tells me that that "errors" occurred, but I can't see any error message. It seems like everything went fine. - So: Any idea what the problem could be? - Thanks.

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• Doing asynchronous distributed request/response service calls without WCF

  - by Ralf Westphal

  In my previous blog post I hopefully was able to demonstrate how low the entry barrier is to asynchronous remote communication. It´s as easy as hosting a service like this    10   using ( var serverSpace = new CcrSpace ().ConfigureAsHost( "wcf.port=8000" ))    11 {    12      serverSpace.HostPort(    13                     ...(read more)

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• One page using querystring or many folders and pages?

  - by ClarkeyBoy

  I have an application where I have the 'core' code in one folder for which there is a virtual directory in the root, such that I can include any core files using /myApp/core/bla.asp. I then have two folders outside of this with a default.asp which currently use the querystring to define what page should be displayed. One page is for general users, the other will only be accessible to users who have permission to manage users / usergroups / permissions. The core code checks the querystring and then checks the permissions for that user. An example of this as it is now is default.asp?action=view&viewtype=list&objectid=server. I am not worried about SEO as this is an internal app and uses Windows Auth. My question is, is it better the way it is now or would it be better to have something like the following: /server/view/list/ /server/view/?id=123 /server/create/ /server/edit/?id=123 /server/remove/?id=123 In the above folders I would have a home page which defines all the variables which are currently determined by the querystring - in /server/create/ for example, I would define the action as 'create', object name as 'server' and so on. In terms of future development, I really have no idea which method would be best. I think the 2nd method would be best in terms of following what page does what but this is such a huge change to make at this stage that I would really like some opinions, preferably based on experience. PS Sorry if the tags are wrong - I am new to this forum and thought this was a bit too much of a discussion for StackOverflow as that is very much right / wrong answer based. I got the idea SE is more discussion based.

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• Exciting product releases (and one disappointing thing) with Mix10

  - by Jeff

  Sadly, I'm not at Mix this year, for the first time in a few years. It's a little harder to go if you work for Microsoft, oddly enough. And then there's this little guy next to me, who at ten days old really needs his daddy to be around! But oh, the excitement of what Microsoft has in store! It's great to finally see all of these major releases coming together for Microsoft developer products. There is a great deal of excitement among people internally no matter where you work, because there is so much cool stuff in the pipe. In case you live under a rock...Visual Studio 2010 - Great to see all of the positive feedback on the Twitter and what not. I've been using it on one of my home products for awhile, and I really like it. The newer nightly builds of ReSharper also seem to be gaining speed in quality as well. I like the new debugging features, and the text readability is not imagined. Love it.Silverlight 4 - I've been running a couple of minor SL3 apps on my personal sites for awhile now, and I'm thrilled with the platform. With a couple of key concepts down, .NET folk like you and me can do some stellar things with this, and if you're a Mac nerd (like me), it's all kinds of awesome to be able to build stuff for it without the agony of Objective-C and X Code.Windows Phone 7 Series - A few weeks ago you got to see the shiny new UI that went beyond the icon grid, and now you've got the developer story as well. That I can adapt my existing Silverlight apps with minimal effort to work on the phone is pretty powerful. Millions of .NET devs just because phone developers, using the tools they already know. How great is that?ASP.NET MVC2 - The final bits shipped last week, and there was much rejoicing. I love this framework because of the testability and the real ability to get to the true mechanics of HTTP. The other cool thing is the speed at which the framework has evolved. v2 in less than a year is pretty "un-Microsoft" in a lot of eyes.The video of keynotes and sessions is starting to appear on the Mix site, but for reasons I can't understand, they're WMV downloads. For real? Not that helpful for Mac folk. Why wouldn't they be using a Silverlight player?In any case, the thing that continues to motivate me is that getting what you imagine on to the Internet gets easier every year. This is not a new revelation for me. I've only been at Microsoft for four months, but I've felt this way for years. I'm thrilled to be a part of it.

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• Problem with Ogmo Editor (is Tiled Editor a solution?)

  - by Mentoliptus

  I made a level editor for a puzzle game with Ogmo Editor and gave it to our designer/level designer. When he downloaded and started Ogmo, his CPU went to 100%. I looked at my CPU usage while Ogmo is running, and it goes from 20% to 30% (which is also high for an application alike Ogmo). He has a Windows 7 VM running on his Mac and I have a normal Windows PC, can this be a problem? I found a thread on FlashFunk forum that confirms that Ogmo has CPU usage issues. Has anybody maybe solved this issue? The solution seems to use Tiled Editor, but I never used it before. Is it difficult to change a level editor from Ogmo to Tiled? Can they export in the same format (XML with CSV elements for my puzzle game)?

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• Penalty for collision during a racing game

  - by Arthur Wulf White

  In a racing game: How should we penalize the player for colliding head on into obstacles such as walls, trees and so on. What is the way it is done in your favorite racing game? How is it done in other successful racing games? Do you think temporarily disabling the engine for a second is too severe? If I do go that route, how would I convey the 'engine is disabled' to the player in a subtle and easily understood way? Is this 'too much' of a penalty? Would the slow-down from the collision be sufficient to discourage the player from driving too carelessly? Which one is more fun? Should I consider a health-bar and affect engine performance for 'low health' status? Could you offer examples of games that handle this well and one that do it poorly? Please share your experience with racing games obstacles and reference games you feel perform well in this aspect. I am sure we all enjoy our racing games differently and I would like to hear different opinions regarding this issue. I would also like to hear how you feel we should penalize or reward for colliding with other vehicles? Should enemy vehicles be destroyable? Should they slow down severely when they hit the back of your car or would that make the gameplay imbalanced?

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• Web Designer and/or Developer

  - by chimps

  we've outsourced our app development, the dev's have created a DB hosted on Amazon-EC2. we're in talks with a web designer for website but the designer does not do any backend integration. i.e connect the website with DB created by app developers do you recommend getting designs from the designer and getting a freelancer to do the front-back end integration, I mean would there be issues/complications? Or go with designer who provides the complete package?

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• What are the basic features of an email module in a common web application?

  - by Coral Doe

  When developing an email module, what are the features to have in mind, besides actual email sending? I am talking about an email module that notifies users of events and periodically sends reports. The only other feature I have in mind is maintaining grey/black lists for users that do illegal operations in the system or any other things that may lead to email/domain/IP banning. Is there an etiquette for developing email modules? Are there some references of requirements for such modules?

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• Is there a rule of thumb for what a bing map's zoom setting should be based on how many miles you want to display?

  - by Clay Shannon

  If a map contains pushpins/waypoints that span only a couple of miles, the map should be zoomed way in and show a lot of detail. If the pushpins/waypoints instead cover vast areas, such as hundreds or even thousands of miles, it should be zoomed way out. That's clear. My question is: is there a general guideline for mapping (no pun intended) Bing Maps zoom levels to a particular number of miles that separate the furthest apart points? e.g., is there some chart that has something like: Zoom level N shows 2 square miles Zoom level N shows 5 square miles etc.?

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• Architecting multi-model multi-DB ASP.NET MVC solution

  - by A. Murray

  I have an ASP.NET MVC 4 solution that I'm putting together, leveraging IoC and the repository pattern using Entity Framework 5. I have a new requirement to be able to pull data from a second database (from another internal application) which I don't have control over. There is no API available unfortunately for the second application and the general pattern at my place of work is to go direct to the database. I want to maintain a consistent approach to modeling the domain and use entity framework to pull the data out, so thus far I have used Entity Framework's database first approach to generate a domain model and database context over the top of this. However, I've become a little stuck on how to include the second domain model in the application. I have a generic repository which I've now moved out to a common DataAccess project, but short of creating two distinct wrappers for the generic repository (so each can identify with a specific database context), I'm struggling to see how I can elegantly include multiple models?

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• Weblogs.asp.net has a problem, it is spam

  - by Chris Hammond

  Is anyone at Microsoft listening to the SPAM problem here on Weblogs.asp.net? My “ Can anyone do anything about the spam here on weblogs.asp.net? ” post from October got over 12 spam comments posted to it in the past 24 hours. I have comments all moderated, but that just means I have a crapload of work to do each time people comment. Also, when you click on a link from a comment notification email you are taken to an insecure site warning due to an invalid SSL Cert. We really just need some updates...(read more)

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• Using XML as data storage

  - by Kian Mayne

  I was thinking about the XML format and the following quote: “XML is not a database. It was never meant to be a database. It is never going to be a database. Relational databases are proven technology with more than 20 years of implementation experience. They are solid, stable, useful products. They are not going away. XML is a very useful technology for moving data between different databases or between databases and other programs. However, it is not itself a database. Don't use it like one.“ -Effective XML: 50 Specific Ways to Improve Your XML by Elliotte Rusty Harold (page 230, Part 4, Item 41, 2nd paragraph) This seems to really stress that XML should not be used for data storage and should only be used for program to program interoperability. Personally, I disagree and .NET's app.config file that's used to store a program's settings is an example of data storage in an XML file. However for databases rather than configurations etc XML should not be used. To develop my point, I will use two examples: A) Data about customers with fields that are all on one level i.e. there are a number of fields all relating to one customer with no children B) Data about configuration of an application where nested fields and properties make a lot of sense So my question is, Is this still a valid statement and is it now acceptable to store data using XML? EDIT: I've sent an email to the author of that quote to ask for his input/extra context.

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• Generic Repository with SQLite and SQL Compact Databases

  - by Andrew Petersen

  I am creating a project that has a mobile app (Xamarin.Android) using a SQLite database and a WPF application (Code First Entity Framework 5) using a SQL Compact database. This project will even eventually have a SQL Server database as well. Because of this I am trying to create a generic repository, so that I can pass in the correct context depending on which application is making the request. The issue I ran into is my DataContext for the SQL Compact database inherits from DbContext and the SQLite database inherits from SQLiteConnection. What is the best way to make this generic, so that it doesn't matter what kind of database is on the back end? This is what I have tried so far on the SQL Compact side: public interface IRepository<TEntity> { TEntity Add(TEntity entity); } public class Repository<TEntity, TContext> : IRepository<TEntity>, IDisposable where TEntity : class where TContext : DbContext { private readonly TContext _context; public Repository(DbContext dbContext) { _context = dbContext as TContext; } public virtual TEntity Add(TEntity entity) { return _context.Set<TEntity>().Add(entity); } } And on the SQLite side: public class ElverDatabase : SQLiteConnection { static readonly object Locker = new object(); public ElverDatabase(string path) : base(path) { CreateTable<Ticket>(); } public int Add<T>(T item) where T : IBusinessEntity { lock (Locker) { return Insert(item); } } }

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• Embarking on a website redevelopment and all developers pushing to move to ASP.NET 4.0

  - by Sue

  Our company is going through a website redevelopment / retooling exercise and we are not quite sure which direction to take. We are told that the website was built in ASP classic and that we should be moving to ASP.NET 4.0. Some developers refuse to do any work in the ASP classic framework citing the advantages of ASP.NET 4.0-- stability, compilation, language support. We are generally happy with our website as is. There are some kinks in the backend involving forms and there is little integration between the CRM of the website and any content management system. Does the move from ASP classic to ASP.NET 4.0 give major advantages to the integration between how content is created, and delivered to our customers?

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• How to fix Duplicate sources.list entry?

  - by Harbhag

  I keep getting this warning whenever I try to run sudo apt-get update. W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages) W: You may want to run apt-get update to correct these problems Below is the output from /etc/apt/sources.list file: deb http://archive.ubuntu.com/ubuntu precise main restricted deb-src http://archive.ubuntu.com/ubuntu precise main restricted deb http://archive.ubuntu.com/ubuntu precise-updates main restricted deb-src http://archive.ubuntu.com/ubuntu precise-updates main restricted deb http://archive.ubuntu.com/ubuntu precise universe deb-src http://archive.ubuntu.com/ubuntu precise universe deb http://archive.ubuntu.com/ubuntu precise-updates universe deb-src http://archive.ubuntu.com/ubuntu precise-updates universe deb http://archive.ubuntu.com/ubuntu precise multiverse deb-src http://archive.ubuntu.com/ubuntu precise multiverse deb http://archive.ubuntu.com/ubuntu precise-updates multiverse deb-src http://archive.ubuntu.com/ubuntu precise-updates multiverse deb http://archive.ubuntu.com/ubuntu precise-security main restricted deb-src http://archive.ubuntu.com/ubuntu precise-security main restricted deb http://archive.ubuntu.com/ubuntu precise-security universe deb-src http://archive.ubuntu.com/ubuntu precise-security universe deb http://archive.ubuntu.com/ubuntu precise-security multiverse deb-src http://archive.ubuntu.com/ubuntu precise-security multiverse How do I fix it?

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• Toad Just Keeps Getting Better

  - by KKline

  Toad for SQL Server just keeps getting better. And with its win as Best of TechEd in the Database Development category, there's even more to love....(read more)

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• What's the best practice for async APIs that return futures on Scala?

  - by Maurício Linhares

  I have started a project to write an async PostgreSQL driver on Scala and to be async, I need to accept callbacks and use futures, but then accepting a callback and a future makes the code cumbersome because you always have to send a callback even if it is useless. Here's a test: "insert a row in the database" in { withHandler { (handler, future) => future.get(5, TimeUnit.SECONDS) handler.sendQuery( this.create ){ query => }.get( 5, TimeUnit.SECONDS ) handler.sendQuery( this.insert ){ query => }.get( 5, TimeUnit.SECONDS ).rowsAffected === 1 } } Sending the empty callback is horrible but I couldn't find a way to make it optional or anything like that, so right now I don't have a lot of ideas on how this external API should look like. It could be something like: handler.sendQuery( this.create ).addListener { query => println(query) } But then again, I'm not sure how people are organizing API's in this regard. Providing examples in other projects would also be great.

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• How do I overcome paralysis by analysis when coding?

  - by LuxuryMode

  When I start a new project, I often times immediately start thinking about the details of implementation. "Where am I gonna put the DataBaseHandler? How should I use it? Should classes that want to use it extend from some Abstract superclass..? Should I an interface? What level of abstraction am I going to use in my class that contains methods for sending requests and parsing data?" I end up stalling for a long time because I want to code for extensibility and reusability. But I feel it almost impossible to get past thinking about how to implement perfectly. And then, if I try to just say "screw it, just get it done!", I hit a brick wall pretty quickly because my code isn't organized, I mixed levels of abstractions, etc. What are some techniques/methods you have for launching into a new project while also setting up a logical/modular structure that will scale well?

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• Game Development Blog Aggregators [duplicate]

  - by Eric Richards

  This question already has an answer here: Game development Blogs [closed] 57 answers I'm a big fan of link collection blogs like Alvin Ashcraft's Morning Dew, Jason Haley's Interesting Finds, and Chris Alcock's The Morning Brew for aggregating interesting blogs on .Net related development stuff. I'd like to find something similar for game development blogs. I follow GameDev.net's articles and developer journals, and #AltDevBlogADay, but would love to see some more, if anyone knows of any interesting links.

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• RTS game diplomacy heuristics

  - by kd304

  I'm reimplementing an old 4X space-rts game which has diplomacy options. The original was based on a relation scoring system (0..100) and a set of negotiation options (improve relations, alliance, declare war, etc.) The AI player usually had 3 options: yes, maybe and no; each adding or removing some amount to the relation score. How should the AI chose between the options? How does the diplomacy work in other games and how are they imlemented? Any good books/articles on the subject? (Googling the term diplomacy yields the game Diplomacy, which is unhelpful.)

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• Platforms for sharing content and expertise

  - by Thomas

  Are there any platforms / sites where people can share expertise in game development and where you can share (either payed or free) digital content (like images, sounds, animations but also frameworks or libraries) to be used in games? I'd also like the possibility to contact users and request specific pieces of content. I'd like to start out as an indie developer and have programming skills but I lack the experience and time to create ingame artwork and sound. Is there any site where I could locate other people (artists mostly) who would want to work on a game for free? I know I can get most technical questions answered on this site and I have some contacts but I'm affraid this won't be enough.

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• The use of Test-Driven Development in Non-Greenfield Projects?

  - by JHarley1

  So here is a question for you, having read some great answers to questions such as "Test-Driven Development - Convince Me". So my question is: "Can Test-Driven Development be used effectively on non-Greenfield projects?" To specify: I would really like to know if people have had experience in using TDD in projects where there was already non-TDD elements present? And the problems that they then faced.

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• Is the 'C' in MVC really necessary?

  - by Anne Nonimus

  I understand the role of the model and view in the Model-View-Controller pattern, but I have a hard time understanding why a controller is necessary. Let's assume we're creating a chess program using an MVC approach; the game state should be the model, and the GUI should be the view. What exactly is the controller in this case? Is it just a separate class that has all the functions that will be called when you, say, click on a tile? Why not just perform all the logic on the model in the view itself?

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• Gathering all data in single iteration vs using functions for readable code

  - by user828584

  Say I have an array of runners with which I need to find the tallest runner, the fastest runner, and the lightest runner. It seems like the most readable solution would be: runners = getRunners(); tallestRunner = getTallestRunner(runners); fastestRunner = getFastestRunner(runners); lightestRunner = getLightestRunner(runners); ..where each function iterates over the runners and keeps track of the largest height, greatest speed, and lowest weight. Iterating over the array three times, however, doesn't seem like a very good idea. It would instead be better to do: int greatestHeght, greatestSpeed, leastWeight; Runner tallestRunner, fastestRunner, lightestRunner; for(runner in runners){ if(runner.height > greatestHeight) { greatestHeight = runner.height; tallestRunner = runner; } if(runner.speed > ... } While this isn't too unreadable, it can get messy when there is more logic for each piece of information being extracted in the iteration. What's the middle ground here? How can I use only a single iteration while still keeping the code divided into logical units?

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• How can we distribute a client app to other non-US businesses?

  - by Simon

  I'm working on an app which acts as a client for our web service. We sell this service to businesses, and we want to distribute the app to their employees for free. The app will be customised for each client. If we were in the US, my understanding is that we'd ask them to enrol in the volume purchasing program, and submit a version of our app for each business, for enterprise distribution at the free price point However, the businesses aren't all in the US, so they can't enrol in the VPP. They have thousands of employees, so promo codes won't be sufficient. What are our alternatives?

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