Top network posts

• 36 Rails 3: How do I validate to allow blanks ("") but not nil (NULL in database)
• 31 "Could not find a valid mapping for #<User ...>" only on second and successive tests
• 30 Is it worth trying to write tests for the most tightly coupled site in the world?
• 21 MongoDB relationships: embed or reference?
• 11 What is the best way to handle this: large download via PHP + slow connection from client = script timeout before file is completely downloaded
• 10 Is there a way to detect implicit vs. explicit CSS height values in jQuery?
• 10 Access the URL of an jQuery Ajax Request in the Callback Function
• View more network posts →