diff options
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/attribute_methods/write.rb | 1 | ||||
| -rw-r--r-- | activerecord/lib/active_record/persistence.rb | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index 3c4dab304e..7661676f8c 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -32,6 +32,7 @@ module ActiveRecord @attributes[attr_name] = value end end + alias_method :raw_write_attribute, :write_attribute private # Handle *= for method_missing. diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 17a64b6e86..a916c88348 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -119,6 +119,20 @@ module ActiveRecord save(:validate => false) end + # Updates a single attribute of an object, without calling save. + # + # * Validation is skipped. + # * Callbacks are skipped. + # * updated_at/updated_on column is not updated if that column is available. + # + def update_column(name, value) + name = name.to_s + raise ActiveRecordError, "#{name} is marked as readonly" if self.class.readonly_attributes.include?(name) + raise ActiveRecordError, "can not update on a new record object" unless persisted? + raw_write_attribute(name, value) + self.class.update_all({ name => value }, self.class.primary_key => id) == 1 + end + # Updates the attributes of the model from the passed-in hash and saves the # record, all wrapped in a transaction. If the object is invalid, the saving # will fail and false will be returned. |