Contents

class AddCategoryNameUniquenessConstraint < ActiveRecord::Migration
  def change
    add_index :categories, [:project_id, :name], unique: true
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
self_systeem-0.1.0	test/dummy_app/db/migrate/20140312221151_add_category_name_uniqueness_constraint.rb