diff options
Diffstat (limited to 'activerecord/lib/active_record')
| -rw-r--r-- | activerecord/lib/active_record/persistence.rb | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index c9e3fc5b05..f89b6b68d7 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -229,6 +229,23 @@ module ActiveRecord end end + # Updates the attributes from the passed-in hash, without calling save. + # + # * Validation is skipped. + # * Callbacks are skipped. + # * updated_at/updated_on column is not updated if that column is available. + # + # Raises an +ActiveRecordError+ when called on new objects, or when at least + # one of the attributes is marked as readonly. + def update_columns(attributes) + raise ActiveRecordError, "can not update on a new record object" unless persisted? + attributes.each_key {|key| raise ActiveRecordError, "#{key.to_s} is marked as readonly" if self.class.readonly_attributes.include?(key.to_s) } + attributes.each do |k,v| + raw_write_attribute(k,v) + end + self.class.where(self.class.primary_key => id).update_all(attributes) == 1 + end + # Initializes +attribute+ to zero if +nil+ and adds the value passed as +by+ (default is 1). # The increment is performed directly on the underlying attribute, no setter is invoked. # Only makes sense for number-based attributes. Returns +self+. |