Remove foreign key from a table - Ruby on rails

Question

I need to remove a foreign key from a table with migrations

This is the table where I have the foreign key:

class CreatePriceWorkshops < ActiveRecord::Migration
  def change
    create_table :price_workshops do |t|
      t.float :price

      t.timestamps null: false
    end
  end
end

With this migration I create the foreign key:

class AddTypeMoneysToPriceWorkshops < ActiveRecord::Migration
  def change
    add_reference :price_workshops, :type_money, index: true, foreign_key: true
  end
end

With this I try to remove the foreign key

class RemoveTypeMoneyFromPriceWorkshops < ActiveRecord::Migration
  def change
    remove_column :price_workshops, :type_money_id, :integer
  end
end

Answer 1

Did you try remove_foreign_key instead of remove_column as per the official doc ?

class RemoveTypeMoneyFromPriceWorkshops < ActiveRecord::Migration
  def change
    remove_foreign_key :price_workshops, :type_money
  end
end

Answer 2

class RemoveTypeMoneyFromPriceWorkshops < ActiveRecord::Migration
  def change
    remove_reference(:price_workshops, :type_money, index: true, foreign_key: true)
  end
end

From official docs, check out more here