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doctrine2/manual/new/docs/en/_old-docs/Object relational mapping - Relations - Composites and aggregates.php
jepso 5329c3827c * Converted most of the docs to the new format.
* Fixed a few layout bugs in new documentation
* Fixed documentation table of contents indentation bug in IE6 (fixes #344)
* Fixed a parser bug in Sensei_Doc_Section
* Restructrured a bit some files of the documentation.
2007-06-13 21:30:32 +00:00

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Doctrine supports aggregates and composites. When binding composites you can use methods Doctrine_Record::ownsOne() and Doctrine_Record::ownsMany(). When binding
aggregates you can use methods Doctrine_Record::hasOne() and Doctrine_Record::hasMany(). Basically using the owns* methods is like adding a database level ON CASCADE DELETE
constraint on related component with an exception that doctrine handles the deletion in application level.
In Doctrine if you bind an Email to a User using ownsOne or ownsMany methods, everytime User record calls delete the associated
Email record is also deleted.
Then again if you bind an Email to a User using hasOne or hasMany methods, everytime User record calls delete the associated
Email record is NOT deleted.