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author | Neeraj Singh <neerajdotname@gmail.com> | 2010-07-20 06:56:20 -0400 |
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committer | Neeraj Singh <neerajdotname@gmail.com> | 2010-07-20 06:56:20 -0400 |
commit | 767de13ff4a19a53d3fe99edb5554040cb6e5e60 (patch) | |
tree | f527650ea3bb9794bed61dd4244411e9e480d24e /activerecord/lib/active_record/persistence.rb | |
parent | bcec0f6528839616cad09374f77014a3969eb63b (diff) | |
download | rails-767de13ff4a19a53d3fe99edb5554040cb6e5e60.tar.gz rails-767de13ff4a19a53d3fe99edb5554040cb6e5e60.tar.bz2 rails-767de13ff4a19a53d3fe99edb5554040cb6e5e60.zip |
expanded comment for update_attribute method
Diffstat (limited to 'activerecord/lib/active_record/persistence.rb')
-rw-r--r-- | activerecord/lib/active_record/persistence.rb | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 7ec443ccc7..68f5be63d6 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -102,8 +102,15 @@ module ActiveRecord became end - # Updates a single attribute and saves the record without going through the normal validation procedure - # or callbacks. This is especially useful for boolean flags on existing records. + # Updates a single attribute and saves the record. + # This is especially useful for boolean flags on existing records. Also note that + # + # * validation is skipped + # * No callbacks are invoked + # * updated_at/updated_on column is updated if that column is available + # * does not work on associations + # * does not work on attr_accessor attributes. The attribute that is being updated must be column name. + # def update_attribute(name, value) changes = record_update_timestamps || {} |