Doctrine2 workaround for mapping MySql 'bit' data type

I have a few columns in my database schema that have bit data types and am having problems with Doctrine2 mapping it. I keep getting:

Unknown database type bit requested, Doctrine\DBAL\Platforms\MySqlPlatform may not support it.

Is there any work around? I was thinking of just changing the data type to boolean and just use true and false statements but that would mean changing the schema on a large scale which I dont have time for.


You could create your own, custom type for Doctrine.

  1. Create a new type by extending Doctrine\DBAL\Types\Type class.
  2. Override convertToPHPValue() and convertToDatabaseValue() methods.
  3. Register a new type:

    \Doctrine\DBAL\Types\Type::addType('abc', 'Your\\Custom\\Type\\AbcType');
    $dbPlatform = $em->getConnection()->getDatabasePlatform();
    $dbPlatform->registerDoctrineTypeMapping('abc', 'abc');

Read more on Doctrine's documentation pages

Use mapping_types in the config.yml

        driver:%% database_driver
         host:%% database_host
         Port:%% database_port
         dbname:% database_name%
         user:%% database_user
         password:%% database_password
         charset: UTF8
             bit: boolean

In case you are using BIT column to store a boolean, you do this:

// get currently used platform
$dbPlatform = $em->getConnection()->getDatabasePlatform();

// interpret BIT as boolean
$dbPlatform->registerDoctrineTypeMapping('bit', 'boolean');

Now every time you map a property to bit column, doctrine 2 will interpret its value as a boolean.

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