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| author | Steve Klabnik <steve@steveklabnik.com> | 2012-09-21 12:58:14 +0300 |
|---|---|---|
| committer | Steve Klabnik <steve@steveklabnik.com> | 2012-09-21 12:58:14 +0300 |
| commit | 79cbfc8290f08212faecdb32cea585c435091e87 (patch) | |
| tree | 2726efb4050e313a22ac38f76969c34d1a901456 /activerecord/lib/active_record | |
| parent | 79942d426d28bcb726c1aedcae00fb07c34ae766 (diff) | |
| download | rails-79cbfc8290f08212faecdb32cea585c435091e87.tar.gz rails-79cbfc8290f08212faecdb32cea585c435091e87.tar.bz2 rails-79cbfc8290f08212faecdb32cea585c435091e87.zip | |
Add extra note about :dependent => :destroy.
Callbacks may interfere with each other.
Diffstat (limited to 'activerecord/lib/active_record')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 577b87e708..d8ab039cec 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1100,7 +1100,10 @@ module ActiveRecord # Specify the method that returns the primary key used for the association. By default this is +id+. # [:dependent] # Controls what happens to the associated objects when - # their owner is destroyed: + # their owner is destroyed. Note that these are implemented as + # callbacks, and Rails executes callbacks in order. Therefore, other + # similar callbacks may affect the :dependent behavior, and the + # :dependent behavior may affect other callbacks. # # * <tt>:destroy</tt> causes all the associated objects to also be destroyed # * <tt>:delete_all</tt> causes all the asssociated objects to be deleted directly from the database (so callbacks will not execute) |