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:dependent => :protect option
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:dependent => :protect option
Adds a new option :protect for the parameter :depends from has_many method. This option forbids destroying records with associated records in a association created with :dependent => :protect option, more or less like ON DELETE RESTRICT SQL statement. If you try to destroy a record with associated records it will raise a ActiveRecord::ReferentialIntegrityProtectionError (defined also in this plugin).
Based on the idea and the code from diego.algorta@gmail.com (don’t mail him if you have problems with the plugin, he only was the ideologist) in Ruby on Rails ticket #3837 (http://dev.rubyonrails.org/ticket/3837).
You can download this plugin at:
http://svn.ruido-blanco.net/dependent_protect/trunk
Author
Daniel Rodríguez Troitiño , based on the ideas and the code from Diego Algorta.
Vitals
| Home | http://ruido-blanco.net/blog/rails-dependent-protect-plugin-english |
|---|---|
| Repository | http://svn.ruido-blanco.net/dependent_protect/trunk |
| License | Rails' (MIT) |
| Tags |
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| Rating | (5 votes) |
| Owner | Daniel Rodríguez Troitiño |
| Created | 7 August 2006 |
Comments
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Swartz8 August 2006
The only question I have is how to catch the exception being created?
I've tried rescue-ing ReferentialIntegrityProtectionError but all i get is the following error:
uninitialized constant ReferentialIntegrityProtectionError
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Try with ActiveRecord::ReferentialIntegrityProtectionError.
All errors defined inside ActiveRecord seems to need fully qualified.
