class CreateRatingTable

Public Instance Methods

change() click to toggle source
# File lib/generators/rating/templates/db/migrate/create_rating_table.rb, line 4
def change
  create_table :rating_ratings do |t|
    t.decimal :average,  default: 0, mull: false, precision: 25, scale: 16
    t.decimal :estimate, default: 0, mull: false, precision: 25, scale: 16
    t.integer :sum,      default: 0, mull: false
    t.integer :total,    default: 0, mull: false

    t.references :resource,  index: true, null: false, polymorphic: true
    t.references :scopeable, index: true, null: true,  polymorphic: true

    t.timestamps null: false
  end

  change_column :rating_ratings, :resource_type,  :string, limit: 10
  change_column :rating_ratings, :scopeable_type, :string, limit: 10

  add_index :rating_ratings, %i[resource_type resource_id scopeable_type scopeable_id],
    name:   :index_rating_rating_on_resource_and_scopeable,
    unique: true
end