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authorrspeicher <rspeicher@gmail.com>2010-06-14 18:19:01 -0400
committerrspeicher <rspeicher@gmail.com>2010-06-14 18:19:01 -0400
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Active Record Basics - Separate and clarify the explanations for created_at/on and updated_at/on
Diffstat (limited to 'railties/guides/source/active_record_basics.textile')
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diff --git a/railties/guides/source/active_record_basics.textile b/railties/guides/source/active_record_basics.textile
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@@ -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.