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Rails: where does the infamous “current_user” come from?
I've been looking around recently into Rails and notice that there are a lot of references to current_user . Does this only come from Devise? and do I have to manually define it myself even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)...
Uninstall ReSharper 4.5
...harper 4.5 in Visual Studio 2008. Now I want to install ReSharper 5, but I can't do it before I uninstall ReSharper 4.5.
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Scala downwards or decreasing for loop?
In Scala, you often use an iterator to do a for loop in an increasing order like:
7 Answers
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Setting focus on an HTML input box on page load
I'm trying to set the default focus on an input box when the page loads (example: google).
My page is very simple, yet I can't figure out how to do this.
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Open file dialog and select a file using WPF controls and C#
I have a TextBox named textbox1 and a Button named button1 .
When I click on button1 I want to browse my files to search only for image files (type jpg, png, bmp...).
And when I select an image file and click Ok in the file dialog I want the file directory to be written in the textbox1.tex...
预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(...
预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(或相反)现象&原因：当 Visual C++ 项目启用了预编译头 (Precompiled header) 功能时，如果项目中同时混合有 .c 和 .cpp 源文件，则可能...现象&原因：
当 Visual C++...
c/c++如何判断指针无效？如NULL,0xcccccccc,0xfeeefeee,野指针等 - C/C++ -...
c/c++如何判断指针无效？如NULL,0xcccccccc,0xfeeefeee,野指针等c c++如何判断指针无效？不仅仅是NULL的判断，有时由于指针释放没有赋NULL，指针会变成野指针或诸如0xcccccccc,0xfeeefeee形式的无效指针，...c/c++如何判断指针无效？不仅仅是N...
Rails: Logging the entire stack trace of an exception
I have been trying to figure out the right way to log a stack trace. I came across this link which states that logger.error $!, $!.backtrace is the way to go but that does not work for me log_error does. As per documentation I do not see how passing a second argument to the error method would ...
how to avoid a new line with p tag?
How can I stay on the same line while working with <p> tag?
5 Answers
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Mockito: List Matchers with generics
Mockito offers:
3 Answers
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