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• Designing a user-defined list to be stored in a relational database - Should I include user index?

  - by Zaemz

  By index, I mean, as the user creates the list, each item receives an integer index for its place in that particular list. Since there will be a table of ListItems, I'd prefer to avoid using the name "Index" for the field. Then I was thinking - should I even include the list index in the database? I figured I would because the list would be created in the same fashion every time, then. Or I could order the list for the user based on its actual primary key, since the list items are created in succession anyway... What should I do?

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• Ubuntu 12.04 mdadm inactive

  - by user32274

  For a while now, my RAID 5 has ceased to work. Everytime I tried "madm --detail /dev/md127", its states all the drive and drive info, but that two of the drives have been removed. After some restarts, doing the same thing, i am getting /dev/md127 does not appear to be active. When I go into DiskUtil, I can see all 6 Hard Drives healthy and present, and i can see the Raid 5 at the bottom under Multi-disk Devices. However, the Raid says 0.0kb, and is not active. Please help and let me know how to proceed from here. I would really like to avoid rebuilding the RAID, especially because all 6 drives seem to be healthy and present. Thanks so much.

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• Are there any free embedable REPL interpreters for a website? [migrated]

  - by Google

  I am hoping to find a free REPL interpreter for a number of languages. I am starting a new web page to help developers learn with a number of tutorials. I want to embed an interpreter on the site so users can have a tutorial and interpreter side by side. I really like free interpreters such as the one at repl.it. However, I am unable to find a free/embeddable interpreter. I was hoping to avoid making one myself-- they seem tricky to make safely! Thanks!

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• Dealing with Fanboys

  - by jozefg

  We've all probably met someone like this, that developer who just knows that his language is the one true language and won't shut up about it. How do you deal like someone like this? I don't want to offend anyone (especially since the fanboy in my workplace is the senior developer). But I want to be able to use my own choice of scripting language when I have to write a throwaway script that never makes it to the repository and no one else need know existed. Thoughts that I had to dealing with this: Laugh it off - "Haha yeah maybe language X is a bit easier, I guess I'm a masochist!" Go with it - I'd really prefer to avoid this as I can't afford the drop in productivity associated with picking up a new language. Hide my language - Become a closet programmer and hide my monitor whenever I'm scripting or automating something. What would you suggest for this situation?

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• Basic/research RTS engine/model

  - by XTF

  Does a basic/research RTS engine/model exist that can be used as a basis for further experimentation/research? I'd like to avoid reinventing the wheel if possible. I'm aware of Spring Engine and Stratagus, but those are real game engines and may not be the best to experiment with and learn from. Ideally the docs for the model would answer questions like: How exactly do units move? (constant velocity? constant acceleration? constant force?) How is pathfinding handled? Does every grid cell become an A* graph node (may be expensive)? Does it consider threats? How are groups handled? (w.r.t pathfinding and movement) How is combat handled? I'm mostly interested in the low-level model details (for now), not the graphics etc. I've read a lot of the other quesions (and answers/references) tagged RTS but I haven't found my answer yet.

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• Add valuable dynamic content to a mobile oriented (local) website, any suggestions?

  - by cesko80

  HI to all, I'm developing a mobile website containing some valuable dynamic content for people living in my city. I did find some useful informations that aren't available in a quick, light mobile format and I added to my site: teathers' programming, pharmacy shops open at night, twitter account embedding... have you got any other suggestion? I was thinking about facebook oauth to add some "social" feel, but I woluld like to avoid cloning fb information/features, just add some other cool addictive thing. I 'm using php for dynamic contents.

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• Is C# becoming harder to read? [closed]

  - by Avi

  As C# has progressed, many language features have been added. It has come to the point where it's becoming unreadable for me. As an example, consider the following code snip from Caliburn.Micro code here: container = CompositionHost.Initialize( new AggregateCatalog( AssemblySource.Instance. Select(x => new AssemblyCatalog(x)) .OfType<ComposablePartCatalog>() ) ); Now, this is just a small example. I have a number of questions: Is this a common or known problem? Is the C# community finding the same? Is this an issue with the language, or is it the style used by the developer? Are there any simple solutions to better understand others code and avoid writing code in this way?

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• This RIA Services bug from MIX bits has been fixed but until new bits are released, watch out!

  The MIX build of RIA services has a bug that has been fixed since. But you might experience it as I did this morning and go around in circles for a while. This blog post is to help you avoid wasting that time. I normally create my model is in its own project and hadn’t seen this problem until this morning. If you add a model into a RIA Services project (e.g., the web project created from the Silverlight Business Application template), you must build the project before you create a new Domain...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Google Analytics + External Site Statistics Tracking in one application?

  - by Soleil

  My company is a broker in the real estate industry. As such, we send a lot of our listings to sites like Trulia.com and Zillow.com, among others. These sites direct leads to our realtors, and provide us with reports every month detailing the activity our listings have had on their site-- links back to our website, emails generated, etc. Our Marketing and Advertising departments want to take that information and enter it into a system to keep track of everything in one place, for the purpose of producing comparison reports. I cannot find any externally available product that provides this functionality. I would sincerely like to avoid writing this tool myself. Does anyone know of a tool that could do this? In short, an ideal system would: Imports Google Analytics data via API Imports real estate listing site data via CSV import / manual entry Provides comparison reports based on data Does anyone know of anything pre-made that can do this?

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• Sprite.js surface background

  - by user1086671

  I'm making a tile-based game using Sprite.js. It is not easy to redraw every tile each frame, so I tried to make a scrolling surface background. There is an example here http://batiste.dosimple.ch/sprite.js/tests/test_scrolling.html The example works, but it seems like ScrollingSurface.update is buggy or there is something I'm missing. What I tried to do is to draw 5x5 tiles and after 5 seconds draw another 5x5 tiles near the first ones. But it draws only the first ones. And surface.update() only updates the position of surface. Here is my code https://github.com/Sektoid/sprite.js/blob/master/tests/test_scrolling.html (You need also to set this.divider = 1.0 in scrolling.js to avoid drawing the same tiles 4 times.) There aren't any sprite.js-forums like with the other sprite- and game-engines have, so I'm asking here.

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• It would be nice to gain reputation in AskUbuntu from helping in Ubuntuforums [migrated]

  - by luchonacho

  I know they are different but also they are very related. By implementing a reputation system in UbuntuForums you could harmonize points here and there. This would integrate both communities and avoid those competitive people to isolate from UbuntuForums (no idea the extent of this but I guess there is some of it). There are tons of questions never solved in UbuntuForums and that means people coming to AskUbuntu. That is plainly inefficient. Since there will not be a centralize system (different owners), why not to integrate them? Certainly, beans are not the proper measure to associate with reputation since you gain beans for anything but UbuntuForums could implement a differentiated system where users "like" one answer if solved they problem. Do you think it would be a good idea? PS: Amazing Askubuntu and reputation are tags not created yet!

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• GNU GPL LICENSE

  - by user577616

  I develop an android application and in my app I use a libary (jar) that I download from the internet. This jar is open-source under the "GNU General Public License v2". I tried to read the text of the license but had difficulty understanding it. My question is: can I use this libary without changing nothing in the jar in a commercial application? I will be making profit from selling my app which uses this GPL-ed .jar file. If possible, I would like to avoid converting my application to open-source.

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• what is the best way to add avoidance behaviour to an AI framework?

  - by SirYakalot

  I have a small AI framework for a shooting based game. Although this is rarely needed, as when agents are close to each other they are usually fighting, I would none the less like some way of implementing avoidance behaviour. For example, if in the future I wanted to take away their weapons and have many of them wonder around in a crowd, how would I make them not hit / pass through each other, but instead avoid each other? two ideas I had would be to add steering behaviour and allow that to deviate from their path, or to use a dynamic pathfinding technique. Are there better ways? What is the more respected practice?

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• What is wrong with me - bug problem? [closed]

  - by reizals

  I have about 6 years exp. in app. development. Not so long ago I had moved to another company and the problem has started. I ready don't know why the last time Im making so many bugs/mistakes. Of course Im testing the functionality before I send message that its "done", but I really don't know why I can't see trivial bugs. Some time it looks like I didnt test anything, but its not true. Ive always had this problems but now its pain in the a.s. My question is very simple, what happened to me ;)? Ok, joke aside. What do you do to avoid simple mistakes? plzzz don't tell me to use TDD. The project is... legacy and Im really sick and tired to fix it and adding more bugs into it. best regards

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• Does low latency code sometimes have to be "ugly"?

  - by user997112

  (This is mainly aimed at those who have specific knowledge of low latency systems, to avoid people just answering with unsubstantiated opinions). Do you feel there is a trade-off between writing "nice" object orientated code and writing very fast low latency code? For instance, avoiding virtual functions in C++/the overhead of polymorphism etc- re-writing code which looks nasty, but is very fast etc? It stands to reason- who cares if it looks ugly (so long as its maintainable)- if you need speed, you need speed? I would be interested to hear from people who have worked in such areas.

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• How To return md5 salted hash? [closed]

  - by user1790627

  Here is the function and this function returns value for sessionGuid. Example, User1 login and join chat then the value of User1 for sessionGuid is. 1 User2 value for sessionGuid is. 2 User3 . value .3 i want this function return md5 salted hash to avoid hacks. function get_current_online_session_login() { $oSrvSec = &App::getModuleService('Account', 'Security'); $login = $oSrvSec->getCurrentUserLogin(); $aReq = getRow(App::getT('online_session'), 'online_session_user = "' . $login . '"'); // return $aReq['online_session_login']; return $aReq['online_session_id']; }

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• Force10 S4810 "Overlapping route for management interface"

  - by Erik Reynolds

  We just got in a pair of Force10 S4810s and are getting tripped up on what should be a very basic configuration step. The S4810 has a gigabit copper management port (though ultimately we'd like to not use that and just trunk in a management vlan). We followed the configuration commands verbatim from a rapid config guide and keep getting a weird error. "Overlapping route for Management Interface." http://i.imgur.com/ojaTQ.png Current running config per request: http://pastebin.com/995v4RSG Any thoughts? I'm pretty baffled. (FWIW: I'm not at all a networking person -- though I'm quickly learning!) Thanks for your help!

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• Getting OTRS to work with XAMPP

  - by JMeterX

  Setting up a testing environment on a RHEL5 server to test out OTRS ticketing system. I installed XAMPP for the ease of use factor for testing but can't seem to get the ticketing system to start with XAMPP at all. I am new to OTRS and learning on the fly. The documentation says to go to localhost/otrs/installer.pl. First, this file does not exist anywhere in the directory except in /opt/otrs/cgi-bin & fcgi-bin. And when I attempted to start OTRS in general I get " -- Please start the web server first! (service httpd start) <--" So do I need to edit the startup script to force it to use XAMPP? Or am I better off just installing HTTPD & MySQL myself?

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• Wcf Facility Metadata publishing for this service is currently disabled.

  - by cvista

  Hey I'm trying to connect to my Wcf service which is configured using castles wcf facility. When I go to the service in a browser i get: Metadata publishing for this service is currently disabled. Which lists a load of instructions which i cant do because the configuration isnt in the web.config. when I try to connect using VS/add service reference i get: The HTML document does not contain Web service discovery information. Metadata contains a reference that cannot be resolved: 'http://s.ibzstar.com/userservices.svc'. Content Type application/soap+xml; charset=utf-8 was not supported by service http://s.ibzstar.com/userservices.svc. The client and service bindings may be mismatched. The remote server returned an error: (415) Cannot process the message because the content type 'application/soap+xml; charset=utf-8' was not the expected type 'text/xml; charset=utf-8'.. If the service is defined in the current solution, try building the solution and adding the service reference again. Anyone know what I need to do to get this working? The end client is an iPhone app written using Monotouch if that matters - so no castle windsor on the client side. cheers w:// Here's the Windsor.config from the service: <?xml version="1.0" encoding="utf-8" ?> <configuration> <components> <component id="eventServices" service="IbzStar.Domain.IEventServices, IbzStar.Domain" type="IbzStar.Domain.EventServices, IbzStar.Domain" lifestyle="transient"> </component> <component id="userServices" service="IbzStar.Domain.IUserServices, IbzStar.Domain" type="IbzStar.Domain.UserServices, IbzStar.Domain" lifestyle="transient"> </component> The Web.config section: <system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/> <services> </services> <behaviors> <serviceBehaviors> <behavior name="IbzStar.WebServices.Service1Behavior"> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> </behaviors> My App_Start contains this: Container = new WindsorContainer(new XmlInterpreter(new ConfigResource())) .AddFacility<WcfFacility>() .Install(Configuration.FromXmlFile("Windsor.config")); As for the client config - I'm using the wizard to add the service.

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• STLport5.2.1 question in VC6.0

  - by vincent.chen

  hi all, today i install the STLPort5.2.1 to my VC6.0 and i test it out, it's okay in the console project, but it issue following question in the MFC project: Compiling... testMFCDlg.cpp d:\sw\vc6\vc98\stlport-5.2.1\stlport\errno.h(55) : fatal error C1189: #error : errno has been defined before inclusion of errno.h header. Error executing cl.exe. how could i avoid this question correctly, help , friends. best wishes, vincent.chen

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• How can I use WCF with only basichttpbinding, SSL and Basic Authentication in IIS?

  - by Tim

  Hello, Is it possible to setup a WCF service with SSL and Basic Authentication in IIS using only BasicHttpBinding-binding? (I can’t use the wsHttpBinding-binding) The site is hosted on IIS 7, with the following authentication set up: - Anonymous access: off - Basic authentication: on - Integrated Windows authentication: off !! Service Config: <services> <service name="NameSpace.SomeService"> <host> <baseAddresses> <add baseAddress="https://hostname/SomeService/" /> </baseAddresses> </host> <!-- Service Endpoints --> <endpoint address="" binding="basicHttpBinding" bindingNamespace="http://hostname/SomeMethodName/1" contract="NameSpace.ISomeInterfaceService" name="Default" /> <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange"/> </service> </services> <behaviors> <serviceBehaviors> <behavior> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpsGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="false"/> <exceptionShielding/> </behavior> </serviceBehaviors> </behaviors> I tried 2 types of bindings with two different errors: 1 - IIS Error: 'Could not find a base address that matches scheme http for the endpoint with binding BasicHttpBinding. Registered base address schemes are [https]. <bindings> <basicHttpBinding> <binding> <security mode="TransportCredentialOnly"> <transport clientCredentialType="Basic"/> </security> </binding> </basicHttpBinding> </bindings> 2 - IIS Error: Security settings for this service require 'Anonymous' Authentication but it is not enabled for the IIS application that hosts this service. <bindings> <basicHttpBinding> <binding> <security mode="Transport"> <transport clientCredentialType="Basic"/> </security> </binding> </basicHttpBinding> </bindings> Does somebody know how to configure this correctly? (if possible?)

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• Started a Forum Board (with phpBB), but Now Rethinking Choice of Board App - Security

  - by nicorellius

  The main reason I even started participating on Superuser.com is because a friend ripped me a new one for using phpBB. He said, "check out StackExchange, they have their act together!" I did, and it's true. So now, after learning phpBB and implementing the board (it's still new and in its infancy), I feel slightly regretful. I would love to use the Stack Exchange tool, but the cost will eventually be the main deterrent. The attractive thing about phpBB is that it's free and open. However, I have heard that it lacks security. Has anyone had this experience, that phpBB is not secure, such that they changed board software? And, I wonder if Stack Exchange is going to introduce a cheaper option for low traffic users? Does this question belong on meta?

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• Sending emails - providers

  - by nrph

  I need to send emails from my social service (this is continuation of Experiences in mailing to registered users). I got strong feeling that it's better to avoid problems with email server configuration and maintance and to choose email provider which will take care of all painful problems. So several offers were compared: http://imgur.com/JkK2X.jpg Three of them look very attractive: Postageapp / Sendgrid / CritSend Which provider works for you and is worth choosing?

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• What alignment does HeapAlloc use

  - by Koert

  I'm developing a general purpose library which uses Win32's HeapAlloc MSDN doesn't mention alignment guarantees for Win32's HeapAlloc, but I really need to know what alignment it uses, so I can avoid excessive padding. On my machine (vista, x86), all allocations are aligned at 8 bytes. Is this true for other platforms as well?

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• html pass a link with get parameters within a link

  - by salmane

  Hi there, I am trying to pass a link within another in such a way : http://www.1st_site.com/?u=http://www.2nd_site.com/?parameter1=xyz I think what the problem is , parameter1=xyz is passed as a parameter for 1st_site is there anyway to avoid that?

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