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  • rails 3 how to automatically post user_id in column of comments

    - by user568502
    hi, im totally new to rails. here my question: i made an app with articles and comments and use devise for authentication sadly im only able to post 1 hyperlink so this is the middle part of my post with the files at gist: https://gist.github.com/771366 the article_id is pre selected in the comments/_form - but the user_id isnt. i googled a lot, tried value = session[:user_id] and others, but nothing worked would be great if someone could tell me how it works ^^ thx

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  • set Width & Height alone on Views in iPhone Development

    - by ChethanRao
    Hey guys, I am working on an iPhone project where i need to change the width and height of a UIImageView dynamically. I have come across CGPointMake to change x & y positions alone, but what should i use for changing width & height alone??. There's something called CGSizeMake but i am not able to make it work. Can someone help...any idea abt this....???.. Thanks.

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  • How to convert from string to a number, and vice-versa in C++?

    - by Igal
    DEAR All I'm new to the C++, so maybe someone can say what the proper way to write a function that gets a string char (represents number) and converts it to the integer number. For example : input : Sixty five, output: 65. Maybe it should use by cin.getline() ? Well, vice-versa is little bit simlper... Thanks for advance. Igal

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  • What software should i use to work with Ruby?

    - by paranoid_pedlar
    I've only ever learned to "program" with notepad when I was learning to create batch files in Windows. I would appreciate if you can explain to me the benefits of working with an IDE over a text editor or vice versa. Please don't give emotional responses or argue someone else's suggestion/advice. I use Linux primarily. Also, I would like to be able to make programs that can be used in Windows, but programmed in Linux. Thanks.

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  • Best approach to developing a cross-browser javascript widget that populates from a MySQL database?

    - by MindSculpt
    I'm currently researching the best way to approach building a javascript widget someone can embed on their site, which would retrieve and display information from an external MySQL database. The gist of the widget would mimic the needs/functionality of Twitter's widget (http://twitter.com/about/resources/widgets), where it uses some combination of JS, PHP and/or AJAX and retrieves information from a MySQL DB with secure (or at least somewhat safe) cross-browser access. Thoughts or ideas on the best and most reliable way to approach something like this?

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  • What does the following line of a bash script do?

    - by Bialecki
    Usually work in Windows, but trying to setup RabbitMQ on my Mac. Can someone let me know what the line below does? [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} Specifically, I'm curious about the [ "x" = "x$RAB..."] syntax.

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  • How do I print a triangle of stars using SQL

    - by Vutukuri
    Is it practically possible to create a triangle of stars like this as below in SQL.I know that this could be done easily in any other programming language like C,C++,Java but want to know whether it is really possible with just SQL or PL/SQL.I tried working on it with dual table in Oracle but couldn't get through it. * * * * * * * * * or * * * Can someone please shed somelight if anyone knows about it.

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  • how to disable pop up blocker??

    - by user254582
    iam trying to open a child window with disabld toolbar in IE. Everytime i have to set the pop up blocker as off and ten work on it. can someone help with a piece of code to disable the pop up blocker using javascript for all IE versions.

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  • import pictures from the iphone photos storage to the canvas within uiwebview

    - by How2iphone
    I am currently experimenting with canvas drawing function in a uiwebview.Its a simple app that allows you to finger paint on the Iphone.Can someone point me in the rite direction on a problem I'm having.I need to be able to import pictures from the photos storage to the canvas within the uiwebview.Its built on Html,javascript and css.Would prefer to use objective C in xcode to acomplish this.Any ideas would be greatly appreciated.

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  • have a width larger than 960px with 960?

    - by noname
    if i use the custom css generator on their webpage i can have a wider width than 960? so isnt the name 960 kind of misleading? and some persons say that you cant have a flexible grid system (that changes with your browser size) with 960. but you can download a fluid version from the custom css generator. so apparently they didnt know what they were talking about? would be great if someone could straight these things out.

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  • Warning produced by f#: value has been copied to ensure the original is not mutated

    - by user1878761
    The first definition below produces the warning in the title when compiled with f# 3.0 and the warning level set to 5. The second definition compiles cleanly. I wondered if someone could please explain just what the compiler worries I might accidentally mutate, or how would splitting the expression with a let clause help avoid that. Many thanks. let ticks_with_warning () : int64 = System.DateTime.Now.Ticks let ticks_clean () : int64 = let t = System.DateTime.Now t.Ticks

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  • iPhone App made using XCode 3.2.3 does not run on 3.1.3 OS

    - by balexandre
    I can't figure this out and I thought that someone might run through the same thing. I have XCode 3.2.3 (Pre Release with OS 4 beta) and I started to create my application, after the final touches and everything worked ok, I changed the Simulator - 4.0 to Simulator - 3.1.3 (latest iPhone OS) and I could never start my app again :-( Does anyone know what I should do? I created a simple Screencast of the problem so everyone can see what I'm writing about. Thank you for all the help.

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  • Understanding a #define directive

    - by Meta
    Looking at the Windows SDK, I found this #define directive for MAKEINTRESOURCEW: #define MAKEINTRESOURCEW(i) ((LPWSTR)((ULONG_PTR)((WORD)(i)))) Can someone explain to me what the heck that means? For example, what would be the value of MAKEINTRESOURCEW(0)? (1)? (-1)?

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  • Recommend ONE favorite SSIS component that does SFTP/FTPS

    - by Kevin Fairchild
    Sometimes normal FTP doesn't quite cut it... When you need to do secure FTP via SSIS packages, what ONE product would you recommend? Before answering, please see if someone has already suggested the same thing and, if so, vote it up. NOTE: Ideally, it needs to handle both SSH and SSL FTP connections, but I'd consider two separate components if it makes the most sense....

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