Symfony calling functions between controllers

问题

Can anyone give me direction on how to accomplish cross controller variable exchange and/or function calls?

I'm new to Symfony and I have a reasonably complex practice sample site which has two controllers - PageController and BlogController.

PageController has actions to generate my home, about and contact page. The home page simply has a list of blogs.

The BlogController has all the CRUD related functions - create, delete etc

My issue is that I want to call my BlogController:createAction function from the PageController so I can present a blog create form above the blog listings on the homepage OR just pass the variable containing the new blog form data.

In addition, I need to find a solution which will allow the form to submit and the listings to refresh via AJAX.

回答1:

Either using forward method directy

$response = $this->forward('AcmeDemoBundle:Blog:myFunction', array(
    'name'  => $name,
));

http://symfony.com/doc/current/book/controller.html#forwarding-to-another-controller

Or alternatively, you could define the blog controller as a service.

service.yml

services:
    your_service:
        class: Acme\DemoBundle\Controller\BlogController

Then you can use

$service = $this->get('your_service');
$service->myFunction();

You could also look into setting up a form factory service (bit more advanced)

UPDATE:

Following your post I implemented the a service but got the following error:

Error: Call to a member function get() on a non-object

This got fixed when I added the following line to the service declaration:

calls:
         - [ setContainer, [ @service_container ]]

回答2:

Although @Tom Toms answer is correct, I would recommend another approach in order to minimize dependencies:

Just create a route for your Blog function and then use $this->redirectToRoute in your PageController thereby the action will be simply redirected to the assigned route, so you have no forwarding (although I think that the forwad action will create nothing more then a redirect) or service implementation with injections just a simple redirect

来源：https://stackoverflow.com/questions/27734954/symfony-calling-functions-between-controllers

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symfony

controller