Contents

class AddUniquenessConstraintToLikes < ActiveRecord::Migration
  def change
    add_index :social_networking_likes, 
              [:participant_id, :item_id, :item_type],
              unique: true,
              name: "one_like_per_item"
  end
end

Version data entries

16 entries across 16 versions & 1 rubygems

Version	Path
social_networking-0.13.3	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.13.2	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.13.1	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.13.0	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.12.0	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.8	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.7	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.6	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.5	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.4	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.3	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.2	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.1	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.11.0	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.10.0	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb
social_networking-0.9.3	db/migrate/20141007141541_add_uniqueness_constraint_to_likes.rb