Symfony3 - Using a form as a service

PHP
1

Hello,

I’ trying to use a form as a service in Symfony3. The current documentation is little (ie http://symfony.com/doc/current/service_container.html), and the answers here and there are not alway helpful.

When used standalone, my form works fine, and is correctly inserting data in the database through Doctrine.

I’ve written a service.yml file :

services:
    tasks_form:
        factory_method: create
        factory_service: form.factory
        class: Symfony\Component\Form\Form
        arguments: ["@tasks_form_type"]

    tasks_form_type:
        class: AppBundle\Form\Type\TasksFormType
        tags:
        - { name: form.type, alias: tasks_form_type }

The form controller is TasksFormController. I try to call the service in another controller with :

$form=$this->get('tasks_form');

… and all I get is an error message :

Catchable Fatal Error: Argument 1 passed to Symfony\Component\Form\Form::__construct() must be an instance of Symfony\Component\Form\FormConfigInterface, instance of AppBundle\Form\Type\TasksFormType given, called in […]

A bit lost here. Is it a matter of symfony2 vs 3 syntax ? Is the error message due to an error in the services.yml file or to the way I call the service ?

Best regards,

MC

2

Maybe not related to your problem.

But are those tab indents in the yml file instead of two space indents?

Did you validate it? eg.

3

Yes, it’s valid. Thanks for the link to yamllint.com anyway. It’s useful.

1 Like
4

Well, I guess the $form=$this->get(‘tasks_form’); was wrong.
I got rid of the error with :

    	$taskSet=new TaskSetClass();
    	$form=$this->createForm(TasksFormType::class, $taskSet);
or
        $form = $this->container->get('form.factory')->create(TasksFormType::class, $taskSet);

The form now appears on the page, but no more validation, and no more writing to the database. The form is just looping on itself when submitted.

5

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