Behat and “The current node list is empty.” error.

If your receiving the error “The current node list is empty” while using Behat, then likely your project is returning an HTTP 500 error. This may be because your bundle depends on some other bundle not available in your test environment. This was the case when for me when testing a bundle on travis-ci and i was not able to find documentation on this error.

One solution as suggested on github is to try dumping the contents of the scraper/browser to see what kind of error your getting.

     /**
     * @Then /^I dump the contents$/
     */
    public function iDumpTheContents()
    {
        print_r($this->getSession()->getPage()->getContent());
        //or print_r($this->getSession()->getDriver()->getContent());
        // The following produces "The current node list is empty."
        //print_r($this->getSession()->getDriver()->getText('//html'));
    }

/**

* @Then /^I dump the contents$/

public function iDumpTheContents()

{

print_r($this->getSession()->getPage()->getContent());

//or print_r($this->getSession()->getDriver()->getContent());

// The following produces "The current node list is empty."

//print_r($this->getSession()->getDriver()->getText('//html'));

}

However that will likely not give you any output if the server is returning an HTTP 500 internal server error. Your best bet is to just check your logs and do a search for any errors.

If your trying to run your functional tests on travis-ci then you might want to check out this great article on running Behat scenarios in isolation of your project.

Best of luck.

Simple Method for Checking for Order With Behat

While needing to write a test to check the order of 2 items (within a given CSS query) in Behat, I did a little googling and came across this website here.

The tutorial is great and i just wanted to give a shout out to the author for their great content. I also made a slight change to include testing for the existing of the 2 items.

Here is my slightly updated version:

    /**
     * 
     * @Then /^"([^"]*)" should precede "([^"]*)" for the query "([^"]*)"$/
     */
    public function shouldPrecedeForTheQuery($textBefore, $textAfter, $cssQuery)
    {
		// http://neverstopbuilding.net/simple-method-for-checking-for-order-with-behat/
        $items = array_map(
            function ($element) {
                return $element->getText();
            },
            $this->getPage()->findAll('css', $cssQuery)
        );

		WebTestCase::assertTrue(in_array($textBefore, $items), 'The before text was not found!');
		WebTestCase::assertTrue(in_array($textAfter,  $items), 'The after text was not found!');
			
        WebTestCase::assertGreaterThan(
            array_search($textBefore, $items),
            array_search($textAfter, $items),
            "$textBefore does not proceed $textAfter"
        );
    }

/**

* @Then /^"([^"]*)" should precede "([^"]*)" for the query "([^"]*)"$/

public function shouldPrecedeForTheQuery($textBefore, $textAfter, $cssQuery)

{

// http://neverstopbuilding.net/simple-method-for-checking-for-order-with-behat/

$items = array_map(

function ($element) {

return $element->getText();

$this->getPage()->findAll('css', $cssQuery)

);

WebTestCase::assertTrue(in_array($textBefore, $items), 'The before text was not found!');

WebTestCase::assertTrue(in_array($textAfter, $items), 'The after text was not found!');

WebTestCase::assertGreaterThan(

array_search($textBefore, $items),

array_search($textAfter, $items),

"$textBefore does not proceed $textAfter"

);

}

You can see an example of the test i wrote using this method here.

Sorting/Reording Symfony2 Entities Display Order.

So i had to implement a mechanism to re-order Categories and also Boards for my forum bundle, and with though there are many ways to go about it, here is how i solved the problem of reordering them. The reordering functionality is circular so last items getting pushed down end up on the top of the list, and top items getting pushed up end up on the bottom of the list.

    /**
     *
     * @access public
     * @param  Array                                               $categories
     * @param  \CCDNForum\ForumBundle\Entity\Category              $categoryShift
     * @param  int                                                 $direction
     * @return \CCDNForum\ForumBundle\Manager\BaseManagerInterface
     */
    public function reorderCategories($categories, Category $categoryShift, $direction)
    {
		$categoryCount = (count($categories) - 1);
		
		// Find category in collection to shift and use list order as array key for easier editing.
		$sorted = array();
		$shiftIndex = null;
		foreach ($categories as $categoryIndex => $category) {
			if ($categories[$categoryIndex]->getId() == $categoryShift->getId()) {
				$shiftIndex = $categoryIndex;
			}
			
			$sorted[$categoryIndex] = $category;
		}

		$incrementKeysAfterIndex = function($index, $arr) {
			$hydrated = array();
		
			foreach ($arr as $key => $el) {
				if ($key > $index) {
					$hydrated[$key + 1] = $el;
				} else {
					$hydrated[$key] = $el;
				}
			}
		
			return $hydrated;
		};
		
		$decrementKeysBeforeIndex = function($index, $arr) {
			$hydrated = array();
		
			foreach ($arr as $key => $el) {
				if ($key < $index) {
					$hydrated[$key - 1] = $el;
				} else {
					$hydrated[$key] = $el;
				}
			}
			
			return $hydrated;
		};
			
		$shifted = array();
		
		// First Category needs reordering??
		if ($shiftIndex == 0) {
			if ($direction) { // Down (move down 1)
				$shifted = $sorted;
				$shifted[$shiftIndex] = $sorted[$shiftIndex + 1];
				$shifted[$shiftIndex + 1] = $sorted[$shiftIndex];
			} else { // Up (send to bottom)
				$shifted[$categoryCount] = $sorted[0];
				unset($sorted[0]);
				$shifted = array_merge($decrementKeysBeforeIndex($categoryCount + 1, $sorted), $shifted);
			}
		} else {
			// Last category needs reordering??
			if ($shiftIndex == $categoryCount) {
				if ($direction) { // Down (send to top)
					$shifted[0] = $sorted[$categoryCount];
					unset($sorted[$categoryCount]);
					$shifted = array_merge($shifted, $incrementKeysAfterIndex(-1, $sorted));
				} else { // Up (move up 1)
					$shifted = $sorted;
					$shifted[$shiftIndex] = $sorted[$shiftIndex - 1];
					$shifted[$shiftIndex - 1] = $sorted[$shiftIndex];
				}
			} else {
				// Swap 2 categories not at beginning or end.
				$shifted = $sorted;
				if ($direction) { // Down (move down 1)
					$shifted[$shiftIndex] = $sorted[$shiftIndex + 1];
					$shifted[$shiftIndex + 1] = $sorted[$shiftIndex];
				} else { // Up (move up 1)
					$shifted[$shiftIndex] = $sorted[$shiftIndex - 1];
					$shifted[$shiftIndex - 1] = $sorted[$shiftIndex];
				}
			}
		}
		
		// Set the order from the $index arranged prior and persist.
		foreach ($shifted as $index => $category) {
			$category->setListOrderPriority($index);
			$this->persist($category);
		}
		
        $this->flush();

        return $this;
    }

/**

* @access public

* @param Array $categories

* @param \CCDNForum\ForumBundle\Entity\Category $categoryShift

* @param int $direction

* @return \CCDNForum\ForumBundle\Manager\BaseManagerInterface

public function reorderCategories($categories, Category $categoryShift, $direction)

{

$categoryCount = (count($categories) - 1);

// Find category in collection to shift and use list order as array key for easier editing.

$sorted = array();

$shiftIndex = null;

foreach ($categories as $categoryIndex => $category) {

if ($categories[$categoryIndex]->getId() == $categoryShift->getId()) {

$shiftIndex = $categoryIndex;

}

$sorted[$categoryIndex] = $category;

}

$incrementKeysAfterIndex = function($index, $arr) {

$hydrated = array();

foreach ($arr as $key => $el) {

if ($key > $index) {

$hydrated[$key + 1] = $el;

} else {

$hydrated[$key] = $el;

}

return $hydrated;

};

$decrementKeysBeforeIndex = function($index, $arr) {

$hydrated = array();

foreach ($arr as $key => $el) {

if ($key < $index) {

$hydrated[$key - 1] = $el;

} else {

$hydrated[$key] = $el;

}

return $hydrated;

};

$shifted = array();

// First Category needs reordering??

if ($shiftIndex == 0) {

if ($direction) { // Down (move down 1)

$shifted = $sorted;

$shifted[$shiftIndex] = $sorted[$shiftIndex + 1];

$shifted[$shiftIndex + 1] = $sorted[$shiftIndex];

} else { // Up (send to bottom)

$shifted[$categoryCount] = $sorted[0];

unset($sorted[0]);

$shifted = array_merge($decrementKeysBeforeIndex($categoryCount + 1, $sorted), $shifted);

}

} else {

// Last category needs reordering??

if ($shiftIndex == $categoryCount) {

if ($direction) { // Down (send to top)

$shifted[0] = $sorted[$categoryCount];

unset($sorted[$categoryCount]);

$shifted = array_merge($shifted, $incrementKeysAfterIndex(-1, $sorted));

} else { // Up (move up 1)

$shifted = $sorted;

$shifted[$shiftIndex] = $sorted[$shiftIndex - 1];

$shifted[$shiftIndex - 1] = $sorted[$shiftIndex];

}

} else {

// Swap 2 categories not at beginning or end.

$shifted = $sorted;

if ($direction) { // Down (move down 1)

$shifted[$shiftIndex] = $sorted[$shiftIndex + 1];

$shifted[$shiftIndex + 1] = $sorted[$shiftIndex];

} else { // Up (move up 1)

$shifted[$shiftIndex] = $sorted[$shiftIndex - 1];

$shifted[$shiftIndex - 1] = $sorted[$shiftIndex];

}

// Set the order from the $index arranged prior and persist.

foreach ($shifted as $index => $category) {

$category->setListOrderPriority($index);

$this->persist($category);

}

$this->flush();

return $this;

}

What do you guys think? Know of a better approach? Let me know!

Authorisation on Roles in Symfony2

Following a discussion on the IRC room from someone who viewed my post about login/logout handlers in SF2, i wanted to clarify that when dealing with Roles, they should be dealt with in the controller actions.

For off, you need to make sure you got the right hierarchy of roles. In your app/config/security.yml you need something following the structure of:

security:
    role_hierarchy:
        ROLE_USER:          ROLE_USER
        ROLE_MODERATOR:     [ROLE_USER]
        ROLE_ADMIN:         [ROLE_USER, ROLE_MODERATOR]
        ROLE_SUPER_ADMIN:   [ROLE_USER, ROLE_MODERATOR, ROLE_ADMIN]

security:

role_hierarchy:

ROLE_USER: ROLE_USER

ROLE_MODERATOR: [ROLE_USER]

ROLE_ADMIN: [ROLE_USER, ROLE_MODERATOR]

ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_MODERATOR, ROLE_ADMIN]

Where the lowest level of access is at the top and the higher levels of access envelope the last levels of access.

Then you inside your controller actions you would do:

class fooController
{
	public function showAction()
	{
		if ( ! $this->container->get('security.context')->isGranted('ROLE_USER')) {
			throw new AccessDeniedException('You do not have permission to use this resource!');
		}
	}
}

class fooController

{

public function showAction()

{

if ( ! $this->container->get('security.context')->isGranted('ROLE_USER')) {

throw new AccessDeniedException('You do not have permission to use this resource!');

}

According the order of the role hierarchy if you have the role or higher than specified the controller action will continue, if you have a lower level of access than the minimum required then you will get an AccessDeniedException.

Redirecting on login/logout in Symfony2 using LoginHandlers.

Using login handlers or even logout handlers, we can do a number of last minute things before the user is redirected to where they need to go. Being able to intercept the redirect at the last minute and make the user get redirected elsewhere is relatively simple.

Firstly though, i notice a lot of people now who are using Symfony 2 are cheating somewhat by using an EventListener and registering it with the security.interactive_login event listener. This is not the best way to go about this, namely because this event listener is not intended for this purpose. Sometimes event listeners are not the best way to go because they were defined for a specific purpose other than your intention and using them may have undesirable side effects you may not notice right away. Using handlers however allows a little more flexibility in that in all likelihood regardless of changes to Symfony in future revisions, they should still work and were designed specifically for the purposes we will need them for.

Firstly, we need to define our services, personally, i am a fan of YAML, so i define my services as such but feel free to do the same in XML:

parameters:
    ccdn_user_security.component.authentication.handler.login_failure_handler.class: CCDNUser\SecurityBundle\Component\Authentication\Handler\LoginFailureHandler
    ccdn_user_security.component.authentication.handler.logout_success_handler.class: CCDNUser\SecurityBundle\Component\Authentication\Handler\LogoutSuccessHandler
    
services:
    ccdn_user_security.component.authentication.handler.login_failure_handler:
        class:  %ccdn_user_security.component.authentication.handler.login_failure_handler.class%
        arguments:  [@service_container, @router, @security.context]
        tags:
            - { name: 'monolog.logger', channel: 'security' } 
    ccdn_user_security.component.authentication.handler.logout_success_handler:
        class:  %ccdn_user_security.component.authentication.handler.logout_success_handler.class%
        arguments:  [@service_container, @router]
        tags:
            - { name: 'monolog.logger', channel: 'security' }

parameters:

ccdn_user_security.component.authentication.handler.login_failure_handler.class: CCDNUser\SecurityBundle\Component\Authentication\Handler\LoginFailureHandler

ccdn_user_security.component.authentication.handler.logout_success_handler.class: CCDNUser\SecurityBundle\Component\Authentication\Handler\LogoutSuccessHandler

services:

ccdn_user_security.component.authentication.handler.login_failure_handler:

class: %ccdn_user_security.component.authentication.handler.login_failure_handler.class%

arguments: [@service_container, @router, @security.context]

tags:

- { name: 'monolog.logger', channel: 'security' }

ccdn_user_security.component.authentication.handler.logout_success_handler:

class: %ccdn_user_security.component.authentication.handler.logout_success_handler.class%

arguments: [@service_container, @router]

tags:

- { name: 'monolog.logger', channel: 'security' }

Now our services are defined, we need to define the handlers themselves. I like to create a directory named Services in my user bundle for this purpose, then create 2 files. The first file is LoginSuccessHandler, the second is LogoutSuccessHandler. Our handlers will implement the appropriate interface for either our login or logout handlers, which require usually only one method in these instances.

Here is what the login handler should look like:

<?php

namespace CCDNUser\SecurityBundle\Component\Authentication\Handler;

use Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\SecurityContext;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\Routing\Router;

class LoginSuccessHandler implements AuthenticationSuccessHandlerInterface
{
	
	protected $router;
	protected $security;
	
	public function __construct(Router $router, SecurityContext $security)
	{
		$this->router = $router;
		$this->security = $security;
	}
	
	public function onAuthenticationSuccess(Request $request, TokenInterface $token)
	{
		
		if ($this->security->isGranted('ROLE_SUPER_ADMIN'))
		{
			$response = new RedirectResponse($this->router->generate('category_index'));			
		}
		elseif ($this->security->isGranted('ROLE_ADMIN'))
		{
			$response = new RedirectResponse($this->router->generate('category_index'));
		} 
		elseif ($this->security->isGranted('ROLE_USER'))
		{
			// redirect the user to where they were before the login process begun.
			$referer_url = $request->headers->get('referer');
						
			$response = new RedirectResponse($referer_url);
		}
			
		return $response;
	}
	
}

<?php

namespace CCDNUser\SecurityBundle\Component\Authentication\Handler;

use Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface;

use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;

use Symfony\Component\Security\Core\SecurityContext;

use Symfony\Component\HttpFoundation\Request;

use Symfony\Component\HttpFoundation\RedirectResponse;

use Symfony\Component\Routing\Router;

class LoginSuccessHandler implements AuthenticationSuccessHandlerInterface

{

protected $router;

protected $security;

public function __construct(Router $router, SecurityContext $security)

{

$this->router = $router;

$this->security = $security;

}

public function onAuthenticationSuccess(Request $request, TokenInterface $token)

{

if ($this->security->isGranted('ROLE_SUPER_ADMIN'))

{

$response = new RedirectResponse($this->router->generate('category_index'));

}

elseif ($this->security->isGranted('ROLE_ADMIN'))

{

$response = new RedirectResponse($this->router->generate('category_index'));

}

elseif ($this->security->isGranted('ROLE_USER'))

{

// redirect the user to where they were before the login process begun.

$referer_url = $request->headers->get('referer');

$response = new RedirectResponse($referer_url);

}

return $response;

}

Note my namespace is CCDNUser, and my bundle is called SecurityBundle, so our service is named ccdn_user_security.component.authentication.handler.login_failure_handler. Change this to your own namespace and bundle name accordingly but ensure to use the same format as used here, underscore your namespace and append the bundle name with an additional underscore without the term ‘bundle’ in it. Failure to get this part correct will mean your namespace will not be loaded and you will get problems later on in this tutorial as exceptions will be thrown regarding the service not existing.

Here is what the logout handler should look like:

<?php

namespace CCDNUser\SecurityBundle\Component\Authentication\Handler;

use Symfony\Component\Security\Http\Logout\LogoutSuccessHandlerInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Bundle\FrameworkBundle\Routing\Router;

class LogoutSuccessHandler implements LogoutSuccessHandlerInterface
{
	
	protected $router;
	
	public function __construct(Router $router)
	{
		$this->router = $router;
	}
	
	public function onLogoutSuccess(Request $request)
	{
		// redirect the user to where they were before the login process begun.
		$referer_url = $request->headers->get('referer');
					
		$response = new RedirectResponse($referer_url);		
		return $response;
	}
	
}

<?php

namespace CCDNUser\SecurityBundle\Component\Authentication\Handler;

use Symfony\Component\Security\Http\Logout\LogoutSuccessHandlerInterface;

use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;

use Symfony\Component\HttpFoundation\Request;

use Symfony\Component\HttpFoundation\RedirectResponse;

use Symfony\Bundle\FrameworkBundle\Routing\Router;

class LogoutSuccessHandler implements LogoutSuccessHandlerInterface

{

protected $router;

public function __construct(Router $router)

{

$this->router = $router;

}

public function onLogoutSuccess(Request $request)

{

// redirect the user to where they were before the login process begun.

$referer_url = $request->headers->get('referer');

$response = new RedirectResponse($referer_url);

return $response;

}

Our service definitions inject some of the classes we need to make use of our handlers, namely a Router object and the SecurityContext object, we can store these in member variables for later use. Then we wait for the onAuthenticationSuccess method to be called in our LoginSuccessHandler, once this has happened, we have a request and token interface object at our disposal. Using the security context object we can determine what role they have (i.e; ROLE_USER, ROLE_ADMIN etc) and appropriately redirect them as needed.

I like to redirect members of ROLE_USER role to where they came from prior to logging in. This is achieved by passing the ‘referer’ header into the redirect response object we return. I took this step both in the login and logout handlers.

Last thing we now need to do, is inform our security config that it needs to use these handlers by doing the following:

# App/config/security.yml
security:
    providers:
        fos_userbundle:
            id: fos_user.user_manager

    firewalls:
        main:
            #pattern:    .*
            form_login:
                provider:       fos_userbundle
                login_path:     /login
                use_forward:    false
                check_path:     /login_check
                success_handler: ccdn_user_security.component.authentication.handler.login_success_handler
                failure_path:   null
            logout:
                path:   /logout
                target: /
                success_handler: ccdn_user_security.component.authentication.handler.logout_success_handler
            anonymous:  true

# App/config/security.yml

security:

providers:

fos_userbundle:

id: fos_user.user_manager

firewalls:

main:

#pattern: .*

form_login:

provider: fos_userbundle

login_path: /login

use_forward: false

check_path: /login_check

success_handler: ccdn_user_security.component.authentication.handler.login_success_handler

failure_path: null

logout:

path: /logout

target: /

success_handler: ccdn_user_security.component.authentication.handler.logout_success_handler

anonymous: true

In this instance i am using FOSUserBundle and extending it in my own UserBundle, though this code is contained in the SecurityBundle. Which is probably the best way to do this. As the handlers used here work in any bundle because they plugin to Symfony2 core and implement their login handlers, and should not be dependant on any user bundle.

You can see a complete implementation of this in my security bundle found on github

Once this is implemented your on your way to a better login/logout system. Enjoy.

Creating embedded forms in Symfony 2.0

If you are looking to create a form from 2 or more entities, like i have been then you probably find the documentation somewhat lacking and confusing. If you follow the guides you can get your form working if you start from the least dependant entity making that the first entity you use to build your form from your controller. I find if you start from the most dependant you usually get all manner of errors.

What i have is a basic forum i am working on, in my current form situation i have 3 entities, Board entity, a Thread entity and a Post entity. If you start by creating your form with Board then chances are it won’t work, i created my forms in separate ‘Type’ classes (PostType.php ThreadType.php and BoardType.php) and then created my PostType form in my controller, which then sorts out its dependencies on its own.

My controller class is very basic and not very polished, but here is what it looks like:

// In your controller 
public function createAction($board_id)
{
	$board = $this->getDoctrine()
		->getRepository('CodeConsortiumForumBundle:Board')
		->find($board_id);

	$post = new post();

	$form = $this->createForm(new PostType(), $post);

	$formHandler = new PostFormHandler($form, $this->getRequest(), $post);

	if ($formHandler->process()) 
	{
		$em = $this->get('doctrine')->getEntityManager();
		$em->persist($form->getData());
		$em->flush();

		//return $this->redirect($this->generateUrl('thread_show', array( 'thread_id' => $thread_id ) ));
	}
	else
	{
		return $this->render('CodeConsortiumForumBundle:Thread:create.html.twig', array(
			'board' => $board,
			'form' => $form->createView(),
			));
		}

	}
}

// In your controller

public function createAction($board_id)

{

$board = $this->getDoctrine()

->getRepository('CodeConsortiumForumBundle:Board')

->find($board_id);

$post = new post();

$form = $this->createForm(new PostType(), $post);

$formHandler = new PostFormHandler($form, $this->getRequest(), $post);

if ($formHandler->process())

{

$em = $this->get('doctrine')->getEntityManager();

$em->persist($form->getData());

$em->flush();

//return $this->redirect($this->generateUrl('thread_show', array( 'thread_id' => $thread_id ) ));

}

else

{

return $this->render('CodeConsortiumForumBundle:Thread:create.html.twig', array(

'board' => $board,

'form' => $form->createView(),

));

}

It probably looks somewhat messy as i say, its a rough work in progress, but it works, and here are the FormTypes i used, starting with; PostType.php:

<?php
// CodeConsortium/ForumBundle/Form/Type/PostType.php
namespace CodeConsortium\ForumBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;

class PostType extends AbstractType
{

	private $options;

	public function __construct(array $options = null)
	{
		$this->options = $options;
	}

	public function buildForm(FormBuilder $builder, array $options)
	{
		$builder->add('Thread', new ThreadType($this->options) );
		$builder->add('body');
	}

	// for creating and replying to threads
	public function getDefaultOptions(array $options)
	{
		return array(
			'data_class' => 'CodeConsortium\ForumBundle\Entity\Post',
		);
	}

	public function getName()
	{
		return 'Post';
	}

}

<?php

// CodeConsortium/ForumBundle/Form/Type/PostType.php

namespace CodeConsortium\ForumBundle\Form\Type;

use Symfony\Component\Form\AbstractType;

use Symfony\Component\Form\FormBuilder;

class PostType extends AbstractType

{

private $options;

public function __construct(array $options = null)

{

$this->options = $options;

}

public function buildForm(FormBuilder $builder, array $options)

{

$builder->add('Thread', new ThreadType($this->options) );

$builder->add('body');

}

// for creating and replying to threads

public function getDefaultOptions(array $options)

{

return array(

'data_class' => 'CodeConsortium\ForumBundle\Entity\Post',

);

}

public function getName()

{

return 'Post';

}

ThreadType.php

<?php
// CodeConsortium/ForumBundle/Form/Type/PostType.php
namespace CodeConsortium\ForumBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;

class PostType extends AbstractType
{

	private $options;

	public function __construct(array $options = null)
	{
		$this->options = $options;
	}

	public function buildForm(FormBuilder $builder, array $options)
	{
		$builder->add('Thread', new ThreadType($this->options) );
		$builder->add('body');
	}

	// for creating and replying to threads
	public function getDefaultOptions(array $options)
	{
		return array(
			'data_class' => 'CodeConsortium\ForumBundle\Entity\Post',
		);
	}

	public function getName()
	{
		return 'Post';
	}

}

<?php

// CodeConsortium/ForumBundle/Form/Type/PostType.php

namespace CodeConsortium\ForumBundle\Form\Type;

use Symfony\Component\Form\AbstractType;

use Symfony\Component\Form\FormBuilder;

class PostType extends AbstractType

{

private $options;

public function __construct(array $options = null)

{

$this->options = $options;

}

public function buildForm(FormBuilder $builder, array $options)

{

$builder->add('Thread', new ThreadType($this->options) );

$builder->add('body');

}

// for creating and replying to threads

public function getDefaultOptions(array $options)

{

return array(

'data_class' => 'CodeConsortium\ForumBundle\Entity\Post',

);

}

public function getName()

{

return 'Post';

}

And lastly, the BoardType.php

<?php
// CodeConsortium/ForumBundle/Form/Type/BoardType.php
namespace CodeConsortium\ForumBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;

class BoardType extends AbstractType
{

	private $options;

	public function __construct(array $options = null)
	{
		$this->options = $options;
	}

	public function buildForm(FormBuilder $builder, array $options)
	{

	}

	// for creating and replying to threads
	public function getDefaultOptions(array $options)
	{
		return array(
			'data_class' => 'CodeConsortium\ForumBundle\Entity\Board',
		);
	}

	public function getName()
	{
		return 'Board';
	}

}

<?php

// CodeConsortium/ForumBundle/Form/Type/BoardType.php

namespace CodeConsortium\ForumBundle\Form\Type;

use Symfony\Component\Form\AbstractType;

use Symfony\Component\Form\FormBuilder;

class BoardType extends AbstractType

{

private $options;

public function __construct(array $options = null)

{

$this->options = $options;

}

public function buildForm(FormBuilder $builder, array $options)

{

}

// for creating and replying to threads

public function getDefaultOptions(array $options)

{

return array(

'data_class' => 'CodeConsortium\ForumBundle\Entity\Board',

);

}

public function getName()

{

return 'Board';

}

Notice how i added a constructor, this is so we can easily chain feed in from the first object any changes to the form, such as wether we wish to bother including a field or not, we can opt to have any field removed if the form is used under different circumstances such as different access controls for different users with different permissions or if the form is used in another way on the site.

One more thing we need to make sure, is that all the references in our entities make use of the cascade={“persist”} option so that it maintains relations between the relevant forms as new ones get processed, so if say a thread does not exist then when processing the post, it should create one and do the association for us.

Here is an example of a snip from my Post entity class Post.php

 /**
 * @ORM\ManyToOne(targetEntity="Thread", inversedBy="posts", cascade={"persist"})
 * @ORM\JoinColumn(name="thread_id", referencedColumnName="id")
 */
 protected $thread;

/**

* @ORM\ManyToOne(targetEntity="Thread", inversedBy="posts", cascade={"persist"})

* @ORM\JoinColumn(name="thread_id", referencedColumnName="id")

protected $thread;

Lastly, you will need a formHandler if your not working in your controller, if using my example code then the postFormHandler.php looks like this:

<?php
// CodeConsortium/ForumBundle/Form/Handler/PostFormHandler.php
namespace CodeConsortium\ForumBundle\Form\Handler;

use Symfony\Component\Form\Form;
use Symfony\Component\HttpFoundation\Request;

use CodeConsortium\ForumBundle\Form\Type\PostType;
use CodeConsortium\ForumBundle\Entity\Post;

class PostFormHandler
{

	protected $request;
	protected $form;
	protected $post;

	public function __construct(Form $form, Request $request, $post) //, $entityManager)
	{
		$this->form = $form;
		$this->request = $request;
		$this->post = $post;
	}

	public function process()
	{
		//$form = $this->createForm(new PostType(), $this->post);
		//$this->form->setData($this->post);

		if ($this->request->getMethod() == 'POST')
		{
			$this->form->bindRequest($this->request);

			if ($this->form->isValid())
			{ 

				return true; 
			}

		}

		return false;
	}

}

<?php

// CodeConsortium/ForumBundle/Form/Handler/PostFormHandler.php

namespace CodeConsortium\ForumBundle\Form\Handler;

use Symfony\Component\Form\Form;

use Symfony\Component\HttpFoundation\Request;

use CodeConsortium\ForumBundle\Form\Type\PostType;

use CodeConsortium\ForumBundle\Entity\Post;

class PostFormHandler

{

protected $request;

protected $form;

protected $post;

public function __construct(Form $form, Request $request, $post) //, $entityManager)

{

$this->form = $form;

$this->request = $request;

$this->post = $post;

}

public function process()

{

//$form = $this->createForm(new PostType(), $this->post);

//$this->form->setData($this->post);

if ($this->request->getMethod() == 'POST')

{

$this->form->bindRequest($this->request);

if ($this->form->isValid())

{

return true;

}

return false;

}

M	T	W	T	F	S	S
« Aug
						1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30

Reece Fowells Blog

The home of a lot of crapola…

Tag: oop

Behat and “The current node list is empty.” error.

Simple Method for Checking for Order With Behat

Sorting/Reording Symfony2 Entities Display Order.

Authorisation on Roles in Symfony2

Redirecting on login/logout in Symfony2 using LoginHandlers.

Creating embedded forms in Symfony 2.0