Method: ActiveRecord::ConnectionAdapters::SchemaStatements#build_create_join_table_definition

Defined in:
activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb

#build_create_join_table_definition(table_1, table_2, column_options: {}, **options) ⇒ Object

Builds a TableDefinition object for a join table.

This definition object contains information about the table that would be created if the same arguments were passed to #create_join_table. See #create_join_table for information about what arguments should be passed.



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# File 'activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb', line 408

def build_create_join_table_definition(table_1, table_2, column_options: {}, **options) # :nodoc:
  join_table_name = find_join_table_name(table_1, table_2, options)
  column_options.reverse_merge!(null: false, index: false)

  t1_ref, t2_ref = [table_1, table_2].map { |t| reference_name_for_table(t) }

  build_create_table_definition(join_table_name, **options.merge!(id: false)) do |td|
    td.references t1_ref, **column_options
    td.references t2_ref, **column_options
    yield td if block_given?
  end
end