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  • i = true and false in Ruby is true?

    - by alex
    Am I fundamentally misunderstanding Ruby here? I've been writing Ruby code for about 2 years now and just today stumbled on this... ruby-1.8.7-p249 > i = true and false => false ruby-1.8.7-p249 > i => true Could somebody explain what's going on here please? I'm sure it's to spec, but it just seems counter intuitive to me...

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  • stackoverflow : Adding image in question

    - by pavun_cool
    Hi All, I want to know , how to place the image in the stactoverflow question posting. Actually I have screenshot file which is output of my code. So I want show that image in my question from local file system. I tried with tag option , but it is asking me url of the image . Any one explain me.....

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  • 301 redirects in .htaccess on apache

    - by WhitechapelTom
    I guess this should be straightforward but my host got me to switch server from zeus to apache following which the .htaccess file with existing individual 301 redirects failed to work causing an internal server error, so have commented them out for the time being. Could someone explain how to set these up to work in their new apache context? Have no apache experience Example redirect: Redirect 301 /pages/exhibitions/thegreatindoors.html http://www.klassnik.com/pages/thegreatindoors.html Read a lot about mod rewrites etc but not sure what to write. Thanks

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  • When use GWT ensureInjected()

    - by user198313
    Hello there, I created a few styles into a CSSResource and it works well whether I use GWT.<MyResources>create(MyResources.class).myStyles().ensureInjected(); or not. Could anyone shed a light on this and explain when to use ensureInjected or not? Thank you! Daniel

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  • How to pass objects to functions in C++?

    - by Rakesh K
    I am new to C++ programming, but I have experience in Java. I need guidance on how to pass objects to functions in C++. Do I need to pass pointers, references, or non-pointer and non-reference values? I remember in Java there are no such issues since we pass just the variable that holds reference to the objects. It would be great if you could also explain where to use each of those options.

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  • declerative_authorization on User problem

    - by Webpain
    I am trying to block all default methods except create and update in my users controller using declerative_authorization. But at the time I add filter_resource_access or filter_access_to into my usersController i always get "Couldn't find User without an ID". Anyone care to explain why this could be happening? class UsersController :new end end def show @user = @current_user end def edit @user = @current_user end def update @user = @current_user # makes our views "cleaner" and more consistent if @user.update_attributes(params[:user]) flash[:notice] = "Account updated!" redirect_to account_url else render :action = :edit end end end

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  • Reports Generation for Web Based Application Using Selenium Tool

    - by Rahul Mendiratta
    Currently we are generating HTML Reports for Automation, but those reports are not good enough to explain number of scenario which we cover in Automation, Is there anything we can use with Selenium to generate a proper reports which can give a complete overview and can easily understand by anyone First Thing we can show a complete pie charts which cover number of test case passed and Failed. Second thing we can show, what are test cases are there in this build.

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  • MS SQL Server stored procedure meaning

    - by den-javamaniac
    Hi. I'm developing a simple database architecture in VisualParadigm and lately ran over next code excerpt. IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'getType') AND type in (N'P', N'PC')) DROP PROCEDURE getType; Next goes my stored procedure: CREATE PROCEDURE getType @typeId int AS SELECT * FROM type t WHERE t.type_id = @typeId; Can anyone explain what does it mean? P.S.: It would be great, if you may also check for any syntax errors as I'm totally new to MSSQL and stored procedures.

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  • Zend Framework, what $this->_forward is doing

    - by RageZ
    Hello everyone, I would like someone to explain me what _forward is exactly doing, I cannot see if _forward is also rendering the attached view to the action or just executing the action. Also is it possible to pass argument to $this-action in a view script ? More generally my problem is how to code a confirmation page, let's say the user input some stuff and you want to show him confirmation, is forward is mean for that case ? Thanks

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  • How does Zend_Db_Table_Select work?

    - by jwhat
    I'm trying to figure out how to use Zend_Db_Table_Abstract correctly. I want to return just the name column from my query. Can you please explain what's wrong with the following code? class Model_DbTable_Foo extends Zend_Db_Table_Abstract { protected $_name = 'foo'; public function getFooById($id) { $select = $this->select(true)->columns('name')->where('id=' . $id); $row = $this->fetchRow($select); print_r($row->toArray()); } }

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  • Powerbuilder ressources

    - by afilatun
    I'm recently working in a company where we use PowerBuilder extensively. The only documentation or ressources we have access to is some basic course saying things like "Do A, then B and you'll get C". I was wondering if there is some better crash courses or tutorials for this language on the net or somewhere else which actually explain something instead of simply taking me by the hand.

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  • Python multithreading, How is it using multiple Cores?

    - by Sabirul Mostofa
    I am running a multithreaded application(Python2.7.3) in a Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz. I thought it would be using only one core but using the "top" command I see that the python processes are constantly changing the core no. Enabling "SHOW THREADS" in the top command shows diffrent thread processes working on different cores. Can anyone please explain this? It is bothering me as I know from theory that multithreading is executed on a single core.

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  • How to read input until the user enters ^X

    - by Koning Baard
    I am creating an interpreter for my esolang, and I need the user to enter some text which then will be interpreted as an INTERCAL program. I want the user to enter text, which may contain any character including newlines, until the user presses ^X (Ctrl-X), like this: Enter your code followed by ^X: Bla Blablabla Bla^X Thank you for entering your code (line 2, 3 and 4 were entered by the user) can anyone explain me how I can read input including newlines till the user enters ^X? Thanks

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  • Run exe after msi installation?

    - by Shawn
    Using Visual Studio 2008 to create an msi to deploy my program with a setup project. I need to know how to make the msi run the exe it just installed. A custom action? If so please explain where/how. Thanks.

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  • What doesn't MySQL do? [closed]

    - by sean riley
    When using MySQL 5.1 Enterprise after years of using other database products like Sybase, Infomix, DB2; I run into things that MySQL just doesn't do. For example, it can only generate an EXPLAIN query plan for SELECT queries. What are the other things I should watch out for?

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