Symfony2-entityManager inside an Entity

Question

I am using Symfony version 2.7.6. I have created an entity named EmployeeBasicInfo having fields

firstname
lastname
identificationCode etc

I have created a callback function for validating Identification code in EmployeeBasicInfo entity itself which looks like

    /**
     * @Assert\Callback(groups={"edit_myinfo"})
     */
    public function validateIdentificationCode(ExecutionContextInterface $context)
    {


        if ($this->getEmployeeFirstName() == 'fakename') {

            $context->buildViolation('This name sounds totally fake!')
                ->atPath('employeeFirstName')
                ->addViolation();


        }
    }

and this callback function works properly

Actually I want such a callback functionality which checks identidfication code against database. I have added $em = $this->getDoctrine()->getManager(); inside the callback function and the error is like Attempted to call an undefined method named "getDoctrine" of class "XXX\EmployeeBundle\Entity\EmployeeBasicInfo".. Please advise me the effective way

DerStoffel · Accepted Answer · 2015-12-16 07:39:52Z

3

Do not inject the EntityManager in your Entity. One basic concept of the DataMapper-Pattern is, that your entity does not have to know about your data source and its connectors.

I'd suggest to write a custom validation constraint, in which you inject the dependencies you need.

EntityManager, Repository to query, etc. Whatever service suits you.

Have a look at how to create custom constraint validators with dependencies

answered Dec 16, 2015 at 7:39

DerStoffel

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4 Comments

Bimal Kumar Over a year ago

in this case I cant add callback function from controller

Bimal Kumar Over a year ago

i have tried adding the same in the repository class. But got the same error

Bimal Kumar Over a year ago

I have reffered this link knpuniversity.com/screencast/question-answer-day/…. In it, they are connecting to the database from the entitty repository class but i still get the error

Bimal Kumar Over a year ago

how can i use this within an entity inside a callback function??

Michael Sivolobov · Accepted Answer · 2015-12-16 07:47:14Z

0

I would suggest you use a service to do this

class EmployeeUtility($connection)
{
    public function __construct($conn) { $this->connection = $v; }

    public function validateIdentificationCode($emloyeeId, $validationCode)
    {
        // Your code here
    }
}

In your controller, you inject the service:

$employeeUtility = $this->get('employee.utility');
$employeeUtility->validateIdentificationCode(1,'GF38883dkDdW3373d');

Alternatively, add the code in a repository class.

edited Dec 16, 2015 at 7:47

Michael Sivolobov

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answered Dec 16, 2015 at 7:25

crafter

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