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  • Insert record into mysql db with Entity Framework

    - by sanfra1983
    Hi, the problem is that it will insert a new record in a mysql table, I have already done the mapping of the mysql db and I have already done tests returning data and everything works. Now I read from a file, where there are queries written, I have them run me back and the result of true or false based on the final outcome of single query written to the file. Txt; I did this: using (var w = new demotestEntities ()) ( foreach (var l listaqueri) ( var p = we.CreateQuery <category> (l); we.SaveChanges (); result = true; ) ) but it does not work, I sense that it returns no errors, but neither the result given written in the query. txt file is as follows: INSERT INTO category (id, name) VALUES (null, 'test2') anyone can help me?

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  • How to learn more XMPP/Jabber command

    - by user359277
    Hi, I am using ejabberd as a chatting server now. And I am writing a client to chat and register new user. Right now, I know some of the protocol to register a new account, like sending the following command to register new user: <iq type="set"><query xmlns="jabber:iq:register"><username>wfwfewegwegwewefg</username><password>wfwefwefwefwef</password></query></iq> My question is: I want to learn more command/protocol to talk to the server. So where can I learn more? For example, How can I ask the server if the user name exists or not. How can I ask the server to unregister a user. What is the key word I should search for? Should I search for Jabber XMPP protocol or what? Thanks

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  • A linq join combined with a regex

    - by Geert Beckx
    Is it possible to combine these 2 queries or would this make my code too complex? Also I think there should be a performance gain by combining these queries since I think in the near future my source table could be over 11000 records. This is what i came up with so far : Dim lit As LiteralControl ' check characters not in alphabet Dim r As New Regex("^[^a-zA-Z]+") Dim query = From o In source.ToTable _ Where r.IsMatch(o.Field(Of String)("nam")) lit = New LiteralControl(String.Format("letter: {0}, count: {1}<br />", "0-9", query.Count)) plhAlpabetLinks.Controls.Add(lit) Dim q = From l In "ABCDEFGHIJKLMNOPQRSTUVWXYZ".ToLower.ToCharArray _ Group Join o In source.ToTable _ On l Equals o.Field(Of String)("nam").ToLowerInvariant(0) Into g = Group _ Select l, g.Count ' iterate the alphabet to generate all the links. For Each letter In q.AsEnumerable lit = New LiteralControl(String.Format("letter: {0}, count: {1}<br />", letter.l, letter.Count)) plhAlpabetLinks.Controls.Add(lit) Next Kind regards, G.

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  • Convert Google results object (pure js) to Python object

    - by colwilson
    So I'm trying to use Google Map suggest API to request place name suggestions. Unfortunately I can't find the docs for this bit. Here is an example URI: http://maps.google.com/maps/suggest?q=lon&cp=3&ll=55.0,-3.5&spn=11.9,1.2&hl=en&gl=uk&v=2 which returns: {suggestion:[{query:"London",... I want to use this in python (2.5). Now in proper JSON there would have been quotations around the keys like so: {"suggestion":[{"query":"London",... and I could have used simplejson or something, but as it is I'm a bit stuck. There are two possible solutions here; either I can get to the API code and find an option to return proper JSON, or I do that in python. Any ideas please.

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  • Double launchers and mouse captured between screens in Twinview configuration

    - by Numpty
    Just upgraded to 12.04 and noticed an extremely annoying issue. While using twinview, there now appears to be a launcher on each screen. Moving the mouse between monitors and over the launcher "captures" the mouse for half a second or so, creating the perception of lag. According to some bug reports I've read it appears that a launcher on every screen is a new "feature". Is there any way I can get rid of the 2nd launcher? It's driving my crazy.

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  • Using a singleton database class in functions and multiple scripts(PHP) - best use methods

    - by dscher
    I have a singleton db connection which I get with: $dbConnect = myDatabase::getInstance(); which is easy enough. My question is what is the least rhetorical and legitimate way of using this connection in functions and classes? It seems silly to have to declare the variable global, pass it into every single function, and/or recreate this variable within every function. Is there another answer for this? Obviously I'm a noob and I can work my way around this problem 10 different ways, none of which is really attractive to me. It would be a lot easier if I could have that $dbConnect variable accessible in any function without needing to declare it global or pass it in. I do know I can add the variable to the $_SERVER array...is there something wrong with doing this? It seems somewhat inappropriate to me. Another quick question: Is it bad practice to do this: $result = myDatabase::getInstance()-query($query); from directly within a function?

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  • When do you change your major/minor/patch version number?

    - by dave4351
    Do you change your major/minor/patch version numbers right before you release or right after? Example: You just released 1.0.0 to the world (huzzah!). But wait, don't celebrate too much. 1.1.0 is coming out in six weeks! So you fix a bug and do a new build. What's that build called? 1.1.0.0 or 1.0.0.xxxy (where xxxy is the build number of 1.0.0 incremented)? Keep in mind you may have 100 features and bugs to go into 1.1.0. So it might be good to call it 1.0.0.xxxy, because you're nowhere close to 1.1.0. But on the other hand, another dev may be working on 2.0.0, in which case your build might be better named 1.1.0.0 and his 2.0.0.0 instead of 1.0.0.xxxy and 1.0.0.xxxz, respectively.

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  • Zotero error in libreoffice

    - by arno
    I installed Zotero standalone in 12.10 64bit. Some problems which I managed to fix. The one that remains is an error saying "openoffice.org could not communicate with Zotero. make sure zotero standalone or Firefox are open and set to an online state and try again". That's when I click any button in the Zotero toolbar in libreoffice. Firefox doesn't open with a the plugin installed and a working internet connection. The Zotero troubleshooting which mentions this error was of no help to me. I find reports about this bug going back as far as 2009 but I haven't found anything of help.

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  • What's wrong with lualatex?

    - by Hooked
    I'm not sure if this is a bug or I've done something wrong (or I simply don't know luatex well enough). This minimal example file test.tex \documentclass{article} \usepackage{luacode} \begin{document} A random number: \begin{luacode} tex.print(math.random()) \end{luacode} \end{document} Should compile with lualatex test.tex but fails with: ! LaTeX Error: File `luacode.sty' not found. It sounds like something was messed up in the installation of luatex. They look to be installed: > dpkg --get-selections | grep luatex luatex install texlive-luatex install The file exists on my system: > locate luacode.sty /usr/local/texlive/2011/texmf-dist/tex/lualatex/luacode/luacode.sty so I'm not how to troubleshoot this. Is the package messed up or is it a problem on my end?

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  • Organize array in PHP from mysql

    - by Matthew Carter
    Hi i have a social networking website. what i want it to do is pull out my friends status updates. basically what it does is i have a mysql query that pulls out all of my friends and in that while loop there is another mysql query that pulls out the status's from my friends. i want it to be in order of date but since its one while loop in another what it does is pull out all status's from friend 1 then 2 then 3 and not in order by date. i even tried ORDER BY DATE but that just ordered it by date within the friend.. my thought is that i could putt it all in an array and friends is one thing and the values is the stats. then just sort by values would this work and how could i do it. THANKS SO MUCH

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  • Scalable way of doing self join with many to many table

    - by johnathan
    I have a table structure like the following: user id name profile_stat id name profile_stat_value id name user_profile user_id profile_stat_id profile_stat_value_id My question is: How do I evaluate a query where I want to find all users with profile_stat_id and profile_stat_value_id for many stats? I've tried doing an inner self join, but that quickly gets crazy when searching for many stats. I've also tried doing a count on the actual user_profile table, and that's much better, but still slow. Is there some magic I'm missing? I have about 10 million rows in the user_profile table and want the query to take no longer than a few seconds. Is that possible?

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  • Multi Column Block Too Narrow in Chrome

    - by aksarben
    My Web site displays song lyrics in a multi-column format, using CSS3. Both Firefox & MSIE 10+ display the multi-column text perfectly, but Chrome does not. This sample page shows the problem: http://www.hymntime.com/tch/test/html5/html5-multicolumn-test.htm The page uses a media selector, so your Chrome window must be at least 1280 pixels wide to see the effect. In fact, if you make the Chrome window less than 1280 pixels, you'll see the lyrics block change to a single column, of the same overall width. In other words, when Chrome shifts to 1-column to 2-column mode (due to the wider browser window), the lyrics block remains the same width, causing text to be squeezed together. Has anyone else seen this behavior, or know a solution? Is this a Chrome bug, or I am I doing something wrong? I posted this question on a Chrome forum a while back, but got no reply.

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  • Phone complains that identical GLSL struct definition differs in vert/frag programs

    - by stephelton
    When I provide the following struct definition in linked frag and vert shaders, my phone (Samsung Vibrant / Android 2.2) complains that the definition differs. struct Light { mediump vec3 _position; lowp vec4 _ambient; lowp vec4 _diffuse; lowp vec4 _specular; bool _isDirectional; mediump vec3 _attenuation; // constant, linear, and quadratic components }; uniform Light u_light; I know the struct is identical because its included from another file. These shaders work on a linux implementation and on my Android 3.0 tablet. Both shaders declare "precision mediump float;" The exact error is: Uniform variable u_light type/precision does not match in vertex and fragment shader Am I doing anything wrong here, or is my phone's implementation broken? Any advice (other than file a bug report?)

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  • What "version naming convention" do you use?

    - by rjstelling
    Are different version naming conventions suited to different projects? What do you use and why? Personally, I prefer a build number in hexadecimal (e.g 11BCF), this should be incremented very regularly. And then for customers a simple 3 digit version number, i.e. 1.1.3. 1.2.3 (11BCF) <- Build number, should correspond with a revision in source control ^ ^ ^ | | | | | +--- Minor bugs, spelling mistakes, etc. | +----- Minor features, major bug fixes, etc. +------- Major version, UX changes, file format changes, etc.

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  • Linq to SQL Strange SQL Translation

    - by Master Morality
    I have a simple query that is generating some odd SQL translations, which is blowing up my code when the object is saturated. from x in DataContext.MyEntities select new { IsTypeCDA = x.EntityType == "CDA" //x.EntityType is a string and EntityType.CDA is a const string... } I would expect this query should translate to: SELECT (CASE WHEN [t0].[EntityType] = @p1 THEN 1 ELSE 0 END) as [IsTypeCDA] ... Instead I get this : SELECT (CASE WHEN @p1 = [t0].[EntityType] THEN 1 WHEN NOT (@p1 = [t0].[EntityType]) THEN 0 ELSE NULL END) AS [IsTypeCDA] ... Since I'm saturating a POCO where IsTypeCDA is a bool, it blows up stating I can't assign null to bool. Any thoughts? Edit: fixed the property names so they make sense...

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  • Ubuntu 12.10 and Gnome-Shell : can't see nor launch apps except with Alt + F2

    - by Ratoune2008
    I've installed Ubuntu 12.10 and Gnome-Shell 3.6. Everything worked fine till the moment I've began to customize the main menu (apps wich appears in Dash and so on). I don't know wether I've done something wrong or if there is a bug : suddenly, the Dash became empty. My favourite docks too, except the "Show apps" button. When I activate it, there is only an empty dash, no apps showed. The only way I can access an app is using the "Alt+F2" shortcut. I've tried to restart gnome-shell (Alt-F2 / r) but nothing has changed... A logout and a reboot have not changed ... Do you know how to repair the gnome-shell ? Thanks for your help...

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  • What is a django QuerySet?

    - by gath
    Guys, When i do this >>> b = Blog.objects.all() >>> b i get this >>>[<Blog: Blog Title>,<Blog: Blog Tile>] When i query what type b is, >>> type(b) i get this >>> <class 'django.db.models.query.QuerySet'> What does this mean? is it a data type like dict, list etc? An example of how i can build data structure like a QuerySet will be appreciated. I would want to know how django build that QuerySet (the gory details) Gath.

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  • Multiple foreign keys from one table linking to single primary key in second table

    - by croker10
    Hi all, I have a database with three tables, a household table, an adults table and a users table. The Household table contains two foreign keys, iAdult1ID and iAdult2ID. The Users table has a iUserID primary key and the Adult table has a corresponding iUserID foreign key. One of the columns in the Users table is strUsername, an e-mail address. I am trying to write a query that will allow me to search for an e-mail address for either adult that has a relation to the household. So I have two questions, assuming that all the values are not null, how can I do this? And two, in reality, iAdult2ID can be null, is it still possible to write a query to do this? Thanks for your help. Let me know if you need any more information.

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  • mysql foreign key problem.

    - by JP19
    Hi, What is wrong with the foreign key addition here: mysql> create table notes ( id int (11) NOT NULL auto_increment PRIMARY KEY, note_type_id smallint(5) NOT NULL, data TEXT NOT NULL, created_date datetime NOT NULL, modified_date timestamp NOT NULL on update now()) Engine=InnoDB; Query OK, 0 rows affected (0.08 sec) mysql> create table notetypes ( id smallint (5) NOT NULL auto_increment PRIMARY KEY, type varchar(255) NOT NULL UNIQUE) Engine=InnoDB; Query OK, 0 rows affected (0.00 sec) mysql> alter table `notes` add constraint foreign key(`note_type_id`) references `notetypes`.`id` on update cascade on delete restrict; ERROR 1005 (HY000): Can't create table './admin/#sql-43e_b762.frm' (errno: 150) Thanks JP

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  • How to use SQL - INSERT...ON DUPLICATE KEY UPDATE?

    - by Probocop
    Hi, I have a script which captures tweets and puts them into a database. I will be running the script on a cronjob and then displaying the tweets on my site from the database to prevent hitting the limit on the twitter API. So I don't want to have duplicate tweets in my database, I understand I can use 'INSERT...ON DUPLICATE KEY UPDATE' to achieve this, but I don't quite understand how to use it. My database structure is as follows. Table - Hash id (auto_increment) tweet user user_url And currently my SQL to insert is as follows: $tweet = $clean_content[0]; $user_url = $clean_uri[0]; $user = $clean_name[0]; $query='INSERT INTO hash (tweet, user, user_url) VALUES ("'.$tweet.'", "'.$user.'", "'.$user_url.'")'; mysql_query($query); How would I correctly use 'INSERT...ON DUPLICATE KEY UPDATE' to insert only if it doesn't exist, and update if it does? Thanks

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  • Print jobs to Epson Stylus Photo 640 all stopped after upgrade 10.04 to 12.04

    - by Tessa Sayers
    Upgraded from Ubuntu 10.04 to 12.04 on 19th oct 2012. Now all print jobs end up in the print queue with the label "Stopped". Reinstalled the printer driver - it is gutenberg 5.2.8 pre1. Looking at "http://localhost:631/jobs" shows an error message by each stopped job as follows:"The PPD version (5.2.5 Simplified) is not compatible with Gutenprint 5.2.8-pre1." Found a long bug-fixing history in bugs.launchpad.net which seem to imply that this problem has been fixed. It seems to be a problem with the installation not updating the ppd files. Is there any workaround to fix this problem?

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  • Apple, Microsoft et Orange victimes d'un bogue de l'an 2011, avez-vous constaté d'autres dysfonctionnements du même type ?

    Apple, Microsoft et Orange victimes d'un bogue de l'an 2011, avez-vous constaté d'autres dysfonctionnements du même type ? En ce début d'année, plusieurs firmes ont été touchées par des bogues. Il y aura donc eu, d'une certaine manière, un bug de l'an 2011, et ce pour Microsoft, Apple et Orange. Commençons avec les utilisateurs d'Hotmail, le client de messagerie en ligne de l'éditeur de Redmond. Ces derniers ont eu la surprise de découvrir que leurs boîtes de réception était complètement vides le soir du 31 décembre. Les messages archivés et ceux classés dans des dossiers spécifiques avaient également disparus. Le pourcentage d'abonnés au service touchés par ce dysfonctionnement n'a pas été précisé, néanmoins tout serait rentré dan...

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  • How to create initializeDB() method for java database

    - by Holly
    I am working on a Java project for class and have not worked much with incorporating databases into Java. I can't find much on the initializeDB() method, but if I could get some help I would really appreciate it. Below is the code being used for the intializeDB() method: private void initializeDB() { try { // Load the JDBC driver System.out.println("Driver loaded"); // Establish a connection System.out.println("Database connected"); // Create a statement // Create a SQL Query string // Execute the query to create a recordset } catch (Exception ex) { ex.printStackTrace(); } }

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  • Mod_rewrite with multiple variables

    - by Andrei
    Hello, I'm using a PHP script that dynamically generates transparent PNGs for use as CSS backgrounds from a query string that takes RGBa and HSLa values. The original script can be found here, I've only added HSLa support. Because background URLs with PHP query strings aren't very pretty, and because it seems to break the IE 6 transparent PNG hack, I thought of using mod_rewrite to allow the script to be called when a .png with this syntax is called : /assets/colors/h[0-360 value]_s[0-100 value]_l[0-100 value]_a[0-100 value].png which would be rewritten to : /assets/colors.php?h=[0-360 value]&s=[0-100 value]&l=[0-100 value]&a=[0-100 value] Here's the issues I'm encountering : passing multiple variables with mod_rewrite using an underscore as a delimiter I know this could be done by passing a single variable and then exploding it in the PHP script, however I would prefer it to be done by Apache. Thanks in advance and if anyone wants my HSLa enabled version of the script just ask. Anyway I recommend you check it out on it's author's website.

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  • 6 Steam Troubleshooting Tips

    - by Chris Hoffman
    Steam is generally pretty stable, but every now and then you’ll run into a problem. This guide gives solutions to common problems you’ll encounter in Steam, from games crashing or not working properly to Steam failing to launch. If none of these solutions helps, try Googling the problem – you may have run into a game-specific problem with a game-specific solution or just a more obscure Steam bug. HTG Explains: What Is RSS and How Can I Benefit From Using It? HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It HTG Explains: Learn How Websites Are Tracking You Online

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