Andrew Haines questions

Andrew Haines answers

• Bundle for Ruby 1.9 hash syntax, or way to modify existing matches?
• Paperclip file size validation error message
• Ruby on Rails: Calling an instance method from another model
• Errors from `ObjectSpace._id2ref`
• how to use rspec to mock a class method inside a module
• How to set the value to null through rails model?
• Ruby puts string and integer on same line
• How do `Hash#reject!` and `Hash#reject` differ from `Hash#delete_if`?
• Evaluate javascript on Ruby
• Ruby regex for text within parentheses