Method: Datamappify::Data::Mapper::Attribute#primary_reference_key

Defined in:

lib/datamappify/data/mapper/attribute.rb

#primary_reference_key ⇒ Symbol

Foreign key of the primary record, useful for joins

Examples:

:user_id

Returns:

# File 'lib/datamappify/data/mapper/attribute.rb', line 116

def primary_reference_key
  @primary_reference_key ||= :"#{primary_source_class.to_s.demodulize.underscore}_id"
end