30 lines
964 B
PHP
30 lines
964 B
PHP
Doctrine Collections can be deleted in very same way is Doctrine Records you just call delete() method.
|
|
As for all collections Doctrine knows how to perform single-shot-delete meaning it only performs one
|
|
database query for the each collection.
|
|
|
|
|
|
|
|
For example if we have collection of users which own [0-*] phonenumbers. When deleting the collection
|
|
of users doctrine only performs two queries for this whole transaction. The queries would look something like:
|
|
|
|
|
|
|
|
DELETE FROM user WHERE id IN (1,2,3, ... ,N)
|
|
|
|
DELETE FROM phonenumber WHERE id IN (1,2,3, ... ,M)
|
|
|
|
|
|
|
|
|
|
It should also be noted that Doctrine is smart enough to perform single-shot-delete per table when transactions are used.
|
|
So if you are deleting a lot of records and want to optimize the operation just wrap the delete calls in Doctrine_Connection transaction.
|
|
|
|
|
|
<code type="php">
|
|
// delete all users with name 'John'
|
|
|
|
$users = $table->findByDql("name LIKE '%John%'");
|
|
|
|
$users->delete();
|
|
</code>
|