Doctrine_manual-1-2-en

Chapter 4: Configuration 35
class MyQueryClass extends Doctrine_Query
{
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}
Now when you create a new query it will return an instance of MyQueryClass:
$q = Doctrine_Core::getTable('User')
->createQuery('u');
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echo get_class($q); // MyQueryClass
Configure Collection Class
Since you can configure the base query and table class, it would only make sense that you can
also customize the collection class Doctrine should use. We just need to set the
ATTR_COLLECTION_CLASS attribute.
// bootstrap.php
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// ...
$conn->setAttribute(Doctrine_Core::ATTR_COLLECTION_CLASS,
'MyCollectionClass');
The only requirement of the MyCollectionClass is that it must extend
Doctrine_Collection:
$phonenumbers = $user->Phonenumber;
echo get_class($phonenumbers); // MyCollectionClass
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Disabling Cascading Saves
You can optionally disable the cascading save operations which are enabled by default for
convenience with the ATTR_CASCADE_SAVES attribute. If you set this attribute to false it
will only cascade and save if the record is dirty. This means that you can't cascade and save
records who are dirty that are more than one level deep in the hierarchy, but you benefit with
a significant performance
improvement.
$conn->setAttribute(Doctrine_Core::ATTR_CASCADE_SAVES, false);
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Exporting
The export attribute is used for telling Doctrine what it should export when exporting classes
to your database for creating your tables.
If you don't want to export anything when exporting you can use:
// bootstrap.php
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// ...
$manager->setAttribute(Doctrine_Core::ATTR_EXPORT,
Doctrine_Core::EXPORT_NONE);
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