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| author | David Deller <david@horizon-nigh.org> | 2013-03-01 18:05:18 -0500 |
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| committer | David Deller <david@horizon-nigh.org> | 2013-03-01 18:05:18 -0500 |
| commit | b7d50f352fc8918cc63dc6bb0f3e3d77fb7420cc (patch) | |
| tree | 2744383fed699da5f1bb25f1503f1842baa9c724 /guides | |
| parent | 3dde99d01c71dad36e483d0d1957639fde255c27 (diff) | |
| download | rails-b7d50f352fc8918cc63dc6bb0f3e3d77fb7420cc.tar.gz rails-b7d50f352fc8918cc63dc6bb0f3e3d77fb7420cc.tar.bz2 rails-b7d50f352fc8918cc63dc6bb0f3e3d77fb7420cc.zip | |
Add explanation of :dependent => :restrict
Based on information here: http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html#method-i-has_many
Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/association_basics.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index dd59e2a8df..cb0a7c8026 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -845,7 +845,7 @@ Counter cache columns are added to the containing model's list of read-only attr ##### `:dependent` -If you set the `:dependent` option to `:destroy`, then deleting this object will call the `destroy` method on the associated object to delete that object. If you set the `:dependent` option to `:delete`, then deleting this object will delete the associated object _without_ calling its `destroy` method. +If you set the `:dependent` option to `:destroy`, then deleting this object will call the `destroy` method on the associated object to delete that object. If you set the `:dependent` option to `:delete`, then deleting this object will delete the associated object _without_ calling its `destroy` method. If you set the `:dependent` option to `:restrict`, then attempting to delete this object will result in a `ActiveRecord::DeleteRestrictionError` if there are any associated objects. WARNING: You should not specify this option on a `belongs_to` association that is connected with a `has_many` association on the other class. Doing so can lead to orphaned records in your database. |