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How do you write a migration to rename an ActiveRecord model and its table in Rails?
I'm terrible at naming and realize that there are a better set of names for my models in my Rails app. Is there any way to use a migration to rename a model and its corresponding table?
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
What is the proper way to get a list of all available serial ports/devices on a Linux system?
12 Answers
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
I am getting this error when I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view.
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Configuring Log4j Loggers Programmatically
I am trying to use SLF4J (with log4j binding) for the first time.
4 Answers
4
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SVN how to resolve new tree conflicts when file is added on two branches
When merging a couple of branches (using SVN 1.6.1) where a file has been added on both branches (and then worked on in those separate branches) I'm getting one of the new tree conflicts:
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How do pointer to pointers work in C?
How do pointers to pointers work in C?
When would you use them?
14 Answers
14
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Is it necessary to write HEAD, BODY and HTML tags?
Is it necessary to write <html> , <head> and <body> tags?
6 Answers
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What is __main__.py?
What is the __main__.py file for, what sort of code should I put into it, and when should I have one?
5 Answers
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When should I use a table variable vs temporary table in sql server?
I'm learning more details in table variable. It says that temp tables are always on disk, and table variables are in memory, that is to say, the performance of table variable is better than temp table because table variable uses less IO operations than temp table.
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Is AngularJS just for single-page applications (SPAs)?
We are looking at options to build the front end of an application we are creating and are trying to evaluate a tool that will work for us and give us the best platform to move forward.
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