instance method `foreign_key_exists?`

Ruby on Rails 6.1.7.10

Since v5.2.8.1

Available in: v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

foreign_key_exists?(*args, **options)

Checks to see if a foreign key exists.

t.foreign_key(:authors) unless t.foreign_key_exists?(:authors)

See connection.foreign_key_exists?

Parameters

args rest
options keyrest

Source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 783
      def foreign_key_exists?(*args, **options)
        @base.foreign_key_exists?(name, *args, **options)
      end

Defined in activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb line 783 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::Table

Signature

Parameters