diff options
author | rspeicher <rspeicher@gmail.com> | 2010-06-14 18:19:01 -0400 |
---|---|---|
committer | rspeicher <rspeicher@gmail.com> | 2010-06-14 18:19:01 -0400 |
commit | 6f0eb4a0984631b47f4802b29d7c611228f45b5a (patch) | |
tree | 25c81d4f9b3416beb385671594bb7c641ed66936 /railties/guides/source | |
parent | ef2798f018d98dce28566a1679b7b85cd6acf75e (diff) | |
download | rails-6f0eb4a0984631b47f4802b29d7c611228f45b5a.tar.gz rails-6f0eb4a0984631b47f4802b29d7c611228f45b5a.tar.bz2 rails-6f0eb4a0984631b47f4802b29d7c611228f45b5a.zip |
Active Record Basics - Separate and clarify the explanations for created_at/on and updated_at/on
Diffstat (limited to 'railties/guides/source')
-rw-r--r-- | railties/guides/source/active_record_basics.textile | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/railties/guides/source/active_record_basics.textile b/railties/guides/source/active_record_basics.textile index 57477b44c5..e32898129f 100644 --- a/railties/guides/source/active_record_basics.textile +++ b/railties/guides/source/active_record_basics.textile @@ -60,8 +60,10 @@ Active Record uses naming conventions for the columns in database tables, depend There are also some optional column names that will create additional features to Active Record instances: -* *created_at / created_on* - ActiveRecord will store the current date and time to this field when creating the record. -* *updated_at / updated_on* - ActiveRecord will store the current date and times to this field when updating the record. +* *created_at* - Automatically gets set to the current date and time when the record is first created. +* *created_on* - Automatically gets set to the current date when the record is first created. +* *updated_at* - Automatically gets set to the current date and time whenever the record is updated. +* *updated_on* - Automatically gets set to the current date whenever the record is updated. * *lock_version* - Adds "optimistic locking":http://api.rubyonrails.com/classes/ActiveRecord/Locking.html to a model. * *type* - Specifies that the model uses "Single Table Inheritance":http://api.rubyonrails.com/classes/ActiveRecord/Base.html * *(table_name)_count* - Used to cache the number of belonging objects on associations. For example, a +comments_count+ column in a +Post+ class that has many instances of +Comment+ will cache the number of existent comments for each post. |