# This migration comes from active_storage (originally 20191206030411)
class CreateActiveStorageVariantRecords < ActiveRecord::Migration[6.0]
  def change
    unless table_exists?(:active_storage_variant_records)
      create_table :active_storage_variant_records do |t|
        t.belongs_to :blob, null: false, index: false
        t.string :variation_digest, null: false

        t.index %i[ blob_id variation_digest ], name: "index_active_storage_variant_records_uniqueness", unique: true
        t.foreign_key :active_storage_blobs, column: :blob_id
      end
    end
  end
end
