Module: ActiveRecord::AttributeMethods::Write

Extended by:
ActiveSupport::Concern
Defined in:
activerecord/lib/active_record/attribute_methods/write.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Methods included from ActiveSupport::Concern

append_features, class_methods, extended, included

Instance Method Details

#_write_attribute(attr_name, value) ⇒ Object

This method exists to avoid the expensive primary_key check internally, without breaking compatibility with the write_attribute API



49
50
51
52
 
# File 'activerecord/lib/active_record/attribute_methods/write.rb', line 49

def _write_attribute(attr_name, value) # :nodoc:
  @attributes.write_from_user(attr_name.to_s, value)
  value
end

#write_attribute(attr_name, value) ⇒ Object

Updates the attribute identified by attr_name with the specified value. Empty strings for Integer and Float columns are turned into nil.



35
36
37
38
39
40
41
42
43
44
45
 
# File 'activerecord/lib/active_record/attribute_methods/write.rb', line 35

def write_attribute(attr_name, value)
  name = if self.class.attribute_alias?(attr_name)
    self.class.attribute_alias(attr_name).to_s
  else
    attr_name.to_s
  end

  name = self.class.primary_key if name == "id".freeze && self.class.primary_key
  sync_with_transaction_state if name == self.class.primary_key
  _write_attribute(name, value)
end