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  • Django - need to split a table across multiple locations [closed]

    - by MikeRand
    Hi all, I have a Django project to track our company's restructuring projects. Here's the very simple model: class Project(models.Model): code = models.CharField(max_length=30) description = models.CharField(max_length=60) class Employee(models.Model): project = models.ForeignKey(Project) employee_id = models.IntegerField() country_code = models.CharField(max_length=3) severance = models.IntegerField() Due to regulations in some European countries, I'm not allowed to keep employee-level severance information in a database that sits on a box outside of that country. In Django, how do I manage the need to have my Employee table split across multiple databases based on an Employee attribute (i.e. country_code) in a way that doesn't impact anything else in the project (e.g. views, templates, admin)? Thanks, Mike

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  • Brute force algorithm implemented for sudoku solver in C [closed]

    - by 0cool
    This is my code that I have written in C.. It could solve certain level of problems but not the harder one.. I could not locate the error in it, Can you please find that.. # include <stdio.h> # include "sudoku.h" extern int sudoku[size][size]; extern int Arr[size][size]; int i, j, n; int BruteForceAlgorithm (void) { int val; for (i=0; i<size; i++) { for (j=0; j<size; j++) { if (sudoku[i][j]==0) { for (n=1; n<nmax; n++) { val = check (i,j,n); if ( val == 1) { sudoku[i][j]=n; // output(); break; } else if ( val == 0 && n == nmax-1 ) get_back(); } } } } } int get_back (void) { int p,q; int flag=0; for ( p=i; p>=0; p-- ) { for (q=j; q>=0; q-- ) { flag=0; if ( Arr[p][q]==0 && !( p==i && q==j) ) { if ( sudoku[p][q]== nmax-1 ) sudoku[p][q]=0; else { n = sudoku[p][q]; sudoku[p][q]=0; i = p; j = q; flag = 1; break; } } } if ( flag == 1) break; } } Code description: Sudoku.h has definitions related to sudoku solver. 1. size = 9 nmax = 10 2. check(i,j,n) returns 1 if a number "n" can be placed at (i,j) or else "0". What does this code do ? The code starts iterating from sudoku[0][0] to the end... if it finds a empty cell ( we take cell having "0" ), it starts checking for n=1 to n=9 which can be put in that.. as soon as a number can be put in that which is checked by check() it assigns it and breaks from loop and starts finding another empty cell. In case for a particular cell if it doesn't find "n" which can be assigned to sudoku cell.. it goes back to the previous empty cell and start iterating from where it stopped and assigns the next value and continues, Here comes the function get_back(). it iterates back..

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  • Imperative vs. component based programming [closed]

    - by AlexW
    I've been thinking about how programming and more specifically the teaching of programming is advocated amongst the community (online). Often I've heard that Ruby and RoR is an ideal platform for learning to program. I completely disagree... RoR and Ruby are based on the application of the component based paradigm, which means they are ideal for rapid application development. This is much like the MVC model in PHP and ASP.NET But, learning a proper imperative language like Java or C/C++ (or even Perl and PHP) is the only way for a new programmer to explore logic itself, and not get too bogged down in architectural concerns like the need for separation of concerns, and the preference for components. Maybe it's a personal preference thing. I rather think that the most interesting aspects to programming are the procedural bits of code I write that actually do stuff rather than the project planning, and modelling that comes about from fully object oriented engineering or simply using the MVC model. I know this may sound confused to some of you. I feel strongly though that the best way for programming to be taught is through imperative and procedural methods. Architectural (component) methods come later, if at all. After all, none of the amazing algorithms that exist were based on OOP practice! It's all procedural code when it comes to the 'magic'. OOP is useful in creating products and utilities. Algorithms are what makes things happen, and move data around, and so imperative (and/or procedural) code are what matters most. When I see programmers recommending Ruby on Rails to newbie developers, I think it's just so wrong. Just because you write less code with Ruby does not make it easier to do! It's the opposite... you have to know loads more to appreciate its succinct nature. New coders who really want to understand the nuts and bolts of coding need to go away and figure out writing methods/functions (i.e. imperative programming) and working in procedural style, in order to grasp the fundamentals, first, before looking into architectural ways of working. So, my question is: should Ruby ever be recommended as a first language? I think no (obviously)... what arguments are there for it?

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  • How do I get started with HTML5? [closed]

    - by daniel.sedlacek
    What is the recommended workflow to learn HTML5? What tools should I install? What SDK? Where to start? How to test? How to debug? What do I read? I understand that what is often labelled as "HTML5 development" is in fact a mixture of HTML, CSS, JS and more, however I don't believe that bigger projects are developed in Notepad. That is why I am asking you to reveal your tips and tricks about your workflow.

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  • what to learn & practice to be a programmer (not for Job) [closed]

    - by Hanan N.
    I want to be able to write programs (tools) for my own needs, and I want to tell the computer what to do, not to be strict to what other's told it to do. I have a good knowledge of Linux & Windows, I am also have a bit of Python in my head, but I think that I need some guidance on what languages or practices to invest my time into in order to be able to tell the computer what to do. I know there is a lot of posts similar to what I am asking here, but there is a big difference and so I have opened this thread. My goal isn't to work at a company, so I don't need to learn how to work as a team, I don't need to learn as much how to maintain my code nor how to write it nice for others to understand (I know it is important but not for me). I don't want to learn it as a profession, but as a serious hobby (you can call it hacking as long as you know what cracking means), my end goal is to be able to understand other's people code, and to write my own code with a lot of deep knowledge of the ins and outs of the computer system in order to gain from it as much as I can. So in essence my questions are: How can I understand, in depth, computers, in order to exploit them as much as I can? What should I learn? Are there any books that I should read? Is it possible to do this, or do I have to learn every aspect of programming?

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  • C# ComboBox SelectedItem [closed]

    - by Diane
    I have a combobox with a list of values. I would like the selected index to be a value from the database. I first create the combobox, fill it with values from a dataset like this: ComboBox cmb_Relay = new ComboBox(); cmb_Relay.DataSource = ds2.Tables[0]; cmb_Relay.DisplayMember = "Relay"; cmb_Relay.ValueMember = "Relay"; Next, I set the SelectedIndex to the value of a specific field value: cmb_Relay.SelectedItem = ds2.Tables[0].Rows[j][2]; I get the follwing error: InvalidArgument=Value of '3' is not valid for 'SelectedIndex'. Parameter name: SelectedIndex

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  • please look my first project [closed]

    - by gökhan
    good night my project is about that Write a program that uses a loop to calculate the first 15 values of the Fibonacci number sequence and store them in an array, call it FibArr, of size 15 DWORDS. Fibonacci number sequence is described by the following formula: Fib(1) = 1, Fib(2) = 1, Fib(n) = Fib(n -1) + Fib(n - 2). Place each value in the EAX register and display it with a call DumpRegs statement.So I dont have an idea about this topic please help me thanks

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  • Advice on what to learn? [closed]

    - by ICTech
    Currently I work as a .NET C# programmer, quite fresh faced at that (only been working professionally for 8 months) I'm enjoying what I'm doing, but I'm now thinking ahead for other languages to learn. I've heard from quite a few seasoned developers that they reckon it's worth getting in to HTML5. Before I asked this question I read a few of the other questions similar to this, but most were dated back a few years. I'm wondering what your advice would be to an aspiring programmer, what I should avoid going for (i.e. as I understand it Flash is essentially going to be phased out due to HTML5) I was looking in to WPF and the more updated .NET technologies, but someone advised me that WPF stuff will probably be redundant in the future. Thanks for your advice and opinions :)

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  • Programs and memory consumption [closed]

    - by cobie
    I have a 4gb ram macbook pro but I still run out of memory when I have chrome and a few other light weight applications open such as multiple windows of macvim. These programs are written in C/C++ so technically should be memory efficient but why do they suck up all these memory. is it just bad engineering or graphical user interfaces because I have read about incredible feats performed in software dev back in the early computing days with very limited memory but now it just feels like the applications expand to fill all my memory.

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  • Ubuntu will not boot without the pen-drive [closed]

    - by user71238
    Possible Duplicate: Can't boot without Flash Drive plugged in I've just installed Ubuntu on my PC and now it doesn't start unless I change the boot priority, if boot priority is my HD then it doesn't start and if boot priority is my pen-drive then it starts. If I remove my pen-drive, the system keep working normal, but if a restart my PC without the pen-drive, it will not start. Could someone help me?

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  • Getting started with SOAP [closed]

    - by EmmyS
    A site I developed has a new requirement to get weather data from the National Weather Service. They have quite a bit of info on how to use SOAP to get their data and display it in the browser, but what we need to do is use a cron job to get the data at specific intervals, then parse the data out into a database. I have no problem writing PHP code that will run an XSLt and parse xml records out into SQL queries, but I have no idea how to handle this with SOAP (which I've never worked with.) Do I get the data via a SOAP request, save it to an XML file on my web server, then run the XSLt against that? Or is there some other way to go about this?

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  • When/how to use Node with PHP or Ruby [closed]

    - by mbuurman
    For fun, I am creating a sort of microblogging webapp where people can comment on certain things. The basic "What is your opinion on this?" should be easy doable with just PHP (input the data in the database). Along with that I want to create a statistics page, also easy doable with PHP. But what if I want to update that page in realtime? How would I integrate Node on that page? Or shouldn't I use Node for that? When would you use Node?

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  • category title and affect on SEO and ranking [closed]

    - by Mark
    We are working on a jobs and skills website (similiar to Skill Pages) and are deciding on the names of categories. Rather than having loads of categories and sub-categories like, for example, Builder, Electrician, Carpenter etc, we would like to have more general and easier on the eye category names. So for example we have House, Computer, Education, Art etc. So a builder would be in category House and a few others. Will this style negatively effect our SEO and ranking? And if so, should we abandon and go back to traditional categories and sub-categories?

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  • Is programming a SubCulture? [closed]

    - by Trufa
    I was going through this article: http://en.wikipedia.org/wiki/Subculture Which got mee thinking is programming a subculture? After the a while I started thinking it really hard, and if you go really in depth this is a very complex and interesting question to ask. YOu can even ask yourself if (heavy) internet (social) users are an subculture and programmers a culture within. I think it might be an interesting discussion, hope you like it! NOTE: I linked the wiki article because it might be a good baseline, maybe you can base you answer on Ken Gelder´s proposal to distinguish subcultures. But it should be based on a little bit more that intuition. Thanks in advance! Trufa

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  • How to introduce a computer illiterate 50-year old to programming [closed]

    - by sunday
    The other day my dad asked me a question that I would have never expected from him. "How can I learn C++?" My dad is turning 56 this year and computers are a distant concept for him. He doesn't know how to use a phone very well besides calling numbers (no speed dial or contacts); though he has started to learn computers a little better - to the point that he knows how to open the internet (in Windows) and browse around (and has successfully completed several job applications entirely on his own online, of which he was offered positions too). But still, these are too narrow-windowed experiences to mean much, really. While he may not have the background, my dad knows how to read. And I mean reading as a skill, not just an ability. He has little to no college education (financial problems, family, etc.) and was fortunate enough to finish high school, but still taught himself to become a master electrician and has been one for almost 30 years now. He did the same with guitar, learning to play at a very professional level and has been praised for his skill. In high school, he picked up a weight lifting book - and was the only person in his high school at the time to qualify officially as an "athlete" by national standards. In all cases, he just needed something to read. Something to teach him. He absorbs information like a sponge. I have no doubt in my dad's motivation or capability of doing this, so my general goal is simply: Get my dad into the world of computers, and get him on the road to programming. I strongly believe that once I get him through the fundamentals, his drive and reading skill will keep him going on this own. So I'm asking you all: where should I start with all this? And what are the best resources out there? Should I get him to start Linux instead of Windows? Is C++ a bad idea? Remember, he needs to (IMO) learn computers first, and then get that first grasp (the "Hello world" experience) of programming. For money's sake and at top preference, I'd like free online resources that he can read, but by all means any good suggestions in print or paid-for-online are welcome (that I could possibly look into later to purchase). And also, I intend to start him off with C++ (no Python, Java, etc.), because I know it the best and will be able to help him along the way with code. (I have minimal knowledge right now in other languages). Edit: I'm getting a lot of persistent suggestions to use Python. The only reason I wanted to do C++ is that I KNOW it and can be THERE when my dad needs help. My VERY FIRST exposure to programming ever was Java. I learned Java, and I got good at it. I open to other suggestions, but please provide an effective application of your suggestions. EDIT #2: I understand my approach/thinking/knowledge could be lacking here. I'm a sophomore level undergraduate CS major. If you don't agree with anything in my post, tell me why - give me ideas, information - that's why I'm asking in the first place. To narrow down my general goal to specific reachable goals.

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  • Beginner help: where to begin [closed]

    - by shad
    I want to learn how to program. A main stream programming language such as Java, C++/C# is my primary target. Currently, I am a high school student planning to take programming, Digital electronics courses next semester. My biggest problem is that I do not know where to start and I have no one to consult with. Should I take a course at my local community college this summer? Get some books or try learning from some internet websites? What would be the best option a book or website? note that this is no longer my words, but rather ChrisF's because he decided to reword the question a bit (bad) and spaced it out better (good).

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  • Downsides of using Lubuntu on a good computer [closed]

    - by Yamitatsu
    I have a simple question but yet, hard to find any anwser on it. Are there any downsides of using Lubuntu on a good laptop ? Ihe one I purchased would run Ubuntu really good, but I like the look & feel of Lubuntu. I mainly use it to code or watch movie / listen music, usually a load of applications opened at the same time, 20+ tabs on multiple web browser, etc.. Since Lubuntu is lightweight, i wonder if it lacks of some useful functions or something like that.

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  • Advise on effectively re-entering CPP world [closed]

    - by Aadith
    I am getting back into C++ world after nearly a decade. Apparently, there has been a world of development. Would like to get the developer community's advice as to what would be a good approach to have a smooth take-off. To start with, I have done the following: Read up (very briefly) on C++ 11 standards Installed GCC 4.7 Wrote a Hello World program I am sure getting a decent book and reading through it would do. But I am looking for any strategic advise experts might have to share. Trying to leverage on past experience to have a short but effective initial learning span. What would be top few things I would have to look into?

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  • Getting Error whileInitializing entities [closed]

    - by R76
    I am new'b as WPF Dev. I am developing Window application in WPF using mvvmlight framework. I have created database in Sqlserver compact 4.0. I have made a Ado.net Entity Data Model. When I trying to initialize the Entity object in service it throws the error like: Error 'The invocation of the constructor on type 'PointOfSale.ViewModels.ProductsViewModel' that matches the specified binding constraints threw an exception.' Line number '7' and line position '10'. stack Trace at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri) at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri) at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri) at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream) at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator) at PointOfSale.MainWindow.InitializeComponent() in e:\VarniApplication\PointOfSale\PointOfSale\MainWindow.xaml:line 1 at PointOfSale.MainWindow..ctor() in E:\VarniApplication\PointOfSale\PointOfSale\MainWindow.xaml.cs:line 27 Inner Exception {"Unable to load the specified metadata resource."} My code: xyzEntities entites; public ctor() { entites = new xyzEntities(); //This line throws an error } I have installed sql server compact 4.0 from web installer 3.0. and added the sql server compact toolbox from the extension manager. Tell me if I am missing something to install or missing something to write code.

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  • Blank desktop after updates today, only unity2d works now [closed]

    - by NewUbuntuUser
    Possible Duplicate: Unity doesn't load, no Launcher, no Dash appears I have been using 12.04 (wubi) since a week now and this is my 1st exposure to linux. Everything was going on fine till now , but today as soon as I updated through the update manager , docky gave a message that compositing is required or something, and i got an error window which asked me to report the error and then the update manager asked me to reboot. After rebooting , i just get a blank desktop screen , no launcher, no toolbar. I have to restart with the power key. However if i login through Unity 2d everything is fine except the benefits of the 3d environment. I guess something got messed up after the update and i cant figure out which program or file caused this mess. I would highly appreciate if someone could help me out with this as I really liked working on ubuntu after windows 7. Thanks! SOLVED-- Thanks @jrg for the link provided.. it helped me to come out of this mess. Actually some update of compizconfig made the unity plugin inactive did something to the Animation add ons , the one which you use for the burn effect etc. What i did was : On the blank desktop Pressed keys Ctrl + Alt + T to bring up the terminal and typed ccsm This brought up the compiz config system manager, there i enabled the unity plugin and rebooted. Everything started working fine. But then again when i started the addons plugin ,everything went back to square one.. :( . This time pressing Ctrl + Alt + T also did not help. Then i tried Ctrl + Alt + F1 , it brought up a terminal or whatever u call it, and then i typed unity --reset , it did some resetting and in the end it showed some comositing done , I pressed Ctrl + Alt + F7 to come back to the desktop , and here it was , my old sweet desktop.. it had the animation effects too like wobbly windows, excepting the addons like the burn effect, i guess something got wrong with the last update of that addon plugin and now whenever i try turning that on , everything goes poof!! 6 hours wasted , but i guess i learnt something new.. not bad for an orthodontist i guess :))

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  • Start of Career: with Java or PHP [closed]

    - by Anusha
    I am very new to this programming career. I am now doing job on PHP & MySQL (joined before 6 months) and working on e-commerce project. Simultaneously I am learning JAVA also just completed Adv. Java. I can code on both. I am good at SQL, Oracle and MySQL also. My Question is Where do I set my career on PHP or JAVA? Which has more scope and future security? Or also is there any job profile which includes both, if yes then is that good to work on both? I am confused a lot on this, please help me..

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  • background in JAVA [closed]

    - by leen.zd
    how can i put a background image in my java code? this is my code... what's error? import java.awt.Container; import java.awt.Dimension; import java.awt.Graphics; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.JFrame; import javax.swing.JPanel; public class background extends JFrame { private Container c; private JPanel imagePanel; public background() { initialize(); } private void initialize() { setDefaultCloseOperation(EXIT_ON_CLOSE); c = getContentPane(); imagePanel = new JPanel() { public void paint(Graphics g) { try { BufferedImage image = ImageIO.read(new File("http://www.signe-zodiaque.com/images/signes/balance.jpg")); g.drawImage(image, 1000, 2000, null); } catch (IOException e) { e.printStackTrace(); } } }; imagePanel.setPreferredSize(new Dimension(640, 480)); c.add(imagePanel); }

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  • Using Cpp Unit with visual studio 2010 [closed]

    - by Deepak
    I have downloaded "cppunit-cvs-repo-archive.tar.bz2" from http://sourceforge.net/projects/cppunit/ Now after unzipping the above .tar.bz2 what to do next? On searching on internet, it is mentioned that open the CppUnitLibraries.dsw project under cppunit-cvs-repo-archive\cppunit\src folder but the same file is existing with name "CppUnitLibraries.dsw,v" and on changing its extension to .dsw and on opening again it displays the message invalid project file.

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  • Convert video files for home IIS server [closed]

    - by Jey
    I am finally learning to set up an IIS server (personal use only) and I thought it would be cool to have some videos on it for me to watch when I am away from home. Since I'm usually on 3G (iPhone) or work wifi, I'd like to convert them to an optimal format that will stream fast. The video files are mostly avi and mp4 (from 30 minutes to 2 hours in length). What would be an easy and fast way to go about doing this? Thanks.

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  • programming can be taken as specialization - but what will I do still unclear [closed]

    - by C4CodeE4Exe
    I am bit confusing about my goals although whole motivation thing is $$$ but still there is something pushing me to pursue higher studies(being frustrated from boot-licking attitudes of peers and lottery system here in India for promotions,pay hikes and onshore opportunities). I am afraid I do not have any goals.I am software developer mainly in JAVA, but an ECE graduate.I want to work in programming languages. My problem is that I am not even Jack of all trades.I have experience in programming and thats where I am good(self-pro-claimed or atleast people say this treating them as a critics). I have decided to go with the wind and applying for programming languages as my specialization.But I know how to code,write test cases,how Perosnal and commercial IT insurances solution works.What I do not know is how to show that what I will do during my masters.I have no idea about what to showcase, how would my work ex will help me. totally oblivious thoughts... thanks waiting for replies....

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