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doctrine2/manual/new/docs/en/object-relational-mapping/table-options.txt

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Doctrine offers various table options. All table options can be set via {{Doctrine_Record::option($optionName, $value)}}.
For example if you are using MySQL and want to use INNODB tables it can be done as follows:
<code type="php">
class MyInnoDbRecord extends Doctrine_Record
{
public function setTableDefinition()
{
$this->hasColumn('name', 'string');
$this->option('type', 'INNODB');
}
}
</code>
In the following example we set the collate and character set options:
<code type="php">
class MyCustomOptionRecord extends Doctrine_Record
{
public function setTableDefinition()
{
$this->hasColumn('name', 'string');
$this->option('collate', 'utf8_unicode_ci');
$this->option('charset', 'utf8');
}
}
</code>
Doctrine offers the ability to turn off foreign key constraints for specific Models.
<code type="php">
class MyCustomOptionRecord extends Doctrine_Record
{
public function setTableDefinition()
{
$this->hasColumn('name', 'string');
$this->setAttribute(Doctrine::ATTR_EXPORT, Doctrine::EXPORT_ALL ^ Doctrine::EXPORT_CONSTRAINTS);
}
}
</code>