Using SQL domains in rails migrations

I like rails migrations a lot, but repeating common field declarations is not very DRY. The SQL language has 'domains' for capture these, but rails migrations don't support it ... until now!: I wrote domain-migrations plugin.

This plugin extend migrations with support for create_domain: now you can write migrations like this:

class CreateProjects < ActiveRecord::Migration
  def self.up
    create_domain :activedom, :string, :limit => 5,
         :default => 'False',:null => false do
       value.in('True', 'False') | value.in('Yes', 'No')
    end

    create_table :projects do |t|
      t.string :name, :limit => 60
      t.string :description, :limit => 300
      t.activedom :active # *See that?*: activedom act 
                          #  as a new column type!
      t.timestamps
    end
  end
 # ...

This way we can write more DRY migrations :)
I hope you like it ...


Technorati Tags: rails, plugin, sql domains, rails migrations