Yet another boring programmer's blog

Zend Framework 2 and Doctrine 2 Integration

Lately I was playing with ZF2 and Doctrine 2, trying to integrate them into one app. There's a nice tutorial. Here I will try to solve the most common problems which are happening during this integration.

Helper "em"

First of the problems that can occur is the following one:

[InvalidArgumentException]       
The helper "em" is not defined.

If you'll have the same error it's most probably caused by using wrong command for ORM generation. By default in Doctrine you should use:

doctrine orm:schema-tool:create

But in case of ZF2 this command won't work. You should call instead of it:

./vendor/doctrine/doctrine-module/bin/doctrine-module orm:schema-tool:create

No Metadata Classes to process.

Check if for sure you have correct path in your module.config.php setup for Annotation Driver, it should look like:

<?php
namespace MyNamespace;
//...
return array(
    //...
    // Doctrine config
    'doctrine' => array(
        'driver' => array(
            __NAMESPACE__ . '_driver' => array(
                'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
                'cache' => 'array',
                'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
            ),
            'orm_default' => array(
                'drivers' => array(
                    __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
                )
            )
        )
    ),
);

Be sure not to forget the part with namespace!

namespace MyNamespace;

After that you should be able to work with Doctrine!

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