rails/rails — pull request #10092 by smathy (2013-04-04 19:02:04+00:00)
Title: Model generator USAGE doc improvement

This started with me noticing that the `default` option mentioned in the help docs for `rails g model` didn't actually work. I removed that, and improved the docs for the other options:

* Added information about syntax for precision/scale of decimals
* Removed incorrect information about being able to set `default`
* Added more examples of usage