Module: DataMapper::NestedAttributes::InstanceMethods

Defined in:
lib/dm-accepts_nested_attributes/nested_attributes.rb

Instance Method Summary collapse

Instance Method Details

#associated_instance_get(association_name, repository = :default) ⇒ Object

returns nil if no resource has been associated yet



190
191
192
 
# File 'lib/dm-accepts_nested_attributes/nested_attributes.rb', line 190

def associated_instance_get(association_name, repository = :default)
  send(self.class.association_for_name(association_name, repository).name)
end

#sanitize_nested_attributes(attrs) ⇒ Object

This method can be used to remove ambiguities from the passed attributes. Consider a situation with a belongs_to association where both a valid value for the foreign_key attribute and nested_attributes for a new record are present (i.e. item_type_id and item_type_attributes are present). Also see is.gd/sz2d on the rails-core ml for a discussion on this. The basic idea is, that there should be a well defined behavior for what exactly happens when such a situation occurs. I’m currently in favor for using the foreign_key if it is present, but this probably needs more thinking. For now, this method basically is a no-op, but at least it provides a hook where everyone can perform it’s own sanitization (just overwrite this method)



185
186
187
 
# File 'lib/dm-accepts_nested_attributes/nested_attributes.rb', line 185

def sanitize_nested_attributes(attrs)
  attrs
end