Loading Fixtures in a Migration
I love migrations. I think they are one of the best things about rails. I love that I can count on any changes I've done in the database to be consistent across all other databases that I use. Love it.
Sometimes I find that I want pre-load my database with some data, like categories that I have. For testing purposes, I have already created this data in my fixture; now I just want to load that fixture into my database from a migration call.
I know that there is a
rake task for this, so I looked into that code and came up with a little something.
require 'active_record/fixtures' class CreateCategories < ActiveRecord::Migration def self.up create_table :categories do |t| t.column :name, :string end Fixtures.create_fixtures('test/fixtures', File.basename("categories.yml", '.*')) end def self.down drop_table :categories end end
First I had to require
active_record/fixtures. This allows me to call the
Fixtures#create_fixtures method, which load my data. Now I can guarantee that my fixture data will be loaded for any environment.