大约有 20,160 项符合查询结果（耗时：0.0381秒） [XML]
Validate uniqueness of multiple columns
Is there a rails-way way to validate that an actual record is unique and not just a column? For example, a friendship model / table should not be able to have multiple identical records like:
...
How do I capture bash output to the Mac OS X clipboard?
Is it possible to capture bash output to the OS X clipboard?
3 Answers
3
...
Java: possible to line break in a properties file?
Is it possible to continue a long string on the next line in a Java properties file?
3 Answers
...
Adding command line options to CMake
I'm building a large library using CMake, and I would like users to be able to selectively enable/disable certain parts of my build process.
...
How to create a video from images with FFmpeg?
This line worked fine but I want to create a video file from images in another folder.
Image names in my folder are:
4 Answ...
How to prevent errno 32 broken pipe?
Currently I am using an app built in python. When I run it in personal computer, it works without problems.
4 Answers
...
How to subtract 2 hours from user's local time?
Can anyone give me a simple JavaScript code block that will allow me to display the local time minus 2 hours?
2 Answers
...
Removing non-repository files with git?
I'm writing Autotools code and in the process of development, tons of files are generated.
1 Answer
...
What is .sln.docstates file created by Visual Studio Productivity Power Tools?
Visual Studio Productivity Power Tools Version 10.0.20427.1, updated 10 May 2011, is creating a .sln.docstates file.
1 Answ...