ZF2 - How to add a new Form in an existing Controller? - php

Question

I have a login Form LoginForm.php with its Filter LoginFilter.php, that has a View /login/index.phtml, a Controller LoginController.php, two Factory LoginControllerFactory.php & LoginFormFactory.php and it is called in the config.module.php and works perfect. The Form is correctly displayed.
I have a ViewController.php that has a method idAction that shows a post by its id passed by parameter from the homepage in a View called /view/id.phtml. I want to display this Form I created within this View and I don't know how. First, I created the Form exactly as I created the login Form, but I realized that I already configured my id child-route, inside of view route with a Factory in module.config.php.
Then, I tried to set the form in the idAction method, exactly as I did in indexAction in LoginController.php Controller, but I'm receiving the following error: An exception was raised while creating "Rxe\Factory\ViewController"; no instance returned.
I will now show you what I did to try to display this new Form.
First, the Form itself:
class CommentForm extends Form
{
public function buildForm()
{
$this->setAttribute('method', 'POST');
$this->setAttribute('id', 'add-comment-form');
$this->add(array(
'name' => 'comment',
'type' => 'textarea',
'options' => array(
'label' => 'Category'
),
'attributes' => array(
'class' => 'form-control'
)
));
$this->add(array(
'name' => 'submit',
'type' => 'submit',
'attributes' => array(
'class' => 'btn btn-success',
'value' => 'Comment'
)
));
}
}
Form's CommentFormFactory.php calling its Filter and building the Form:
class CommentFormFactory implements FactoryInterface
{
public function createService(ServiceLocatorInterface $serviceLocator)
{
$form = new CommentForm();
$form->setInputFilter($serviceLocator->get('Rxe\Factory\CommentFilter'));
$form->buildForm();
return $form;
}
}
The ViewControllerFactory.php calling the CommentFormFactory.php, just like in LoginControllerFactory.php:
class ViewControllerFactory implements FactoryInterface
{
public function createService(ServiceLocatorInterface $serviceLocator)
{
$serviceManager = $serviceLocator->getServiceLocator();
$viewController = new ViewController();
$viewController->setPostsTable($serviceManager->get('Rxe\Factory\PostsTable'));
$viewController->setCommentsTable($serviceManager->get('Rxe\Factory\CommentsTable'));
$viewController->setCommentForm($serviceManager->get('Rxe\Factory\CommentForm'));
return $viewController;
}
}
The ViewController.php, calling the form within its idAction's ViewModel:
class ViewController extends AbstractActionController
{
use PostsTableTrait;
use CommentsTableTrait;
private $commentForm;
function setCommentForm($commentForm)
{
$this->commentForm = $commentForm;
}
public function indexAction()
{
$category = $this->params()->fromRoute('category');
return new ViewModel(array(
'posts' => $this->postsTable->getPostsByCategory($category),
'categories' => $category
));
}
public function idAction()
{
$id = $this->params()->fromRoute('id');
$viewModel = new ViewModel(array(
'commentForm' => $this->commentForm,
'commentParams' => $this->params()->fromPost(),
'messages' => $this->flashMessenger()->getMessages(),
'posts' => $this->postsTable->getPostById($id),
'posts' => $this->commentsTable->getNumberOfCommentsByPost($id),
'comments' => $this->commentsTable->getCommentsByPost($id)
));
$viewModel->setTemplate('rxe/view/id.phtml');
if ($this->getRequest()->isPost()) {
$this->commentForm->setData($this->params()->fromPost());
if ($this->commentForm->isValid()) {
$this->flashMessenger()->addMessage('Thank you for your comment. :)');
} else {
$this->flashMessenger()->addMessage('Your comment wasn\'t sent.');
}
}
return $viewModel;
}
}
And finally my module.config.php
'controllers' => array(
'invokables' => array(
'Rxe\Controller\Index' => 'Rxe\Controller\IndexController',
'Rxe\Controller\View' => 'Rxe\Controller\ViewController',
'Rxe\Controller\Login' => 'Rxe\Controller\LoginController'
),
'factories' => array(
'Rxe\Factory\LoginController' => 'Rxe\Factory\LoginControllerFactory',
'Rxe\Factory\ViewController' => 'Rxe\Factory\ViewControllerFactory',
'Rxe\Factory\IndexController' => 'Rxe\Factory\IndexControllerFactory'
)
),
'service_manager' => array(
'factories' => array(
'Rxe\Factory\LoginForm' => 'Rxe\Factory\LoginFormFactory',
'Rxe\Factory\LoginFilter' => 'Rxe\Factory\LoginFilterFactory',
'Rxe\Factory\CommentForm' => 'Rxe\Factory\CommentFormFactory',
'Rxe\Factory\CommentFilter' => 'Rxe\Factory\CommentFilterFactory',
'Rxe\Factory\PostsTable' => 'Rxe\Factory\PostsTableFactory',
'Rxe\Factory\CategoriesTable' => 'Rxe\Factory\CategoriesTableFactory',
'Rxe\Factory\CommentsTable' => 'Rxe\Factory\CommentsTableFactory',
'Zend\Db\Adapter\AdapterService' => 'Zend\Db\Adapter\AdapterServiceFactory'
)
),
Please, let me know if you need me to show you more codes. Thank you in advance.
EDIT #1
If I remove the line that calls the Form in the ViewControllerFactory.php, I get the following error: Fatal error: Call to a member function prepare() on a non-object in /home/vol12_3/byethost4.com/b4_16354889/htdocs/module/Rxe/view/rxe/view/id.phtml on line 31
The id.phtml is:
<!-- Comment form -->
<div id="comment-form-area" class="col-xs-3">
<?php $this->commentForm->prepare() ?>
<?php echo $this->form()->openTag($this->commentForm); ?>
<div class="form-group comment-area">
<?php echo $this->formRow($this->commentForm->get('comment_content')); ?>
</div>
<div class="form-group">
<?php echo $this->formRow($this->commentForm->get('submit')); ?>
</div>
<?php echo $this->form()->closeTag(); ?>
</div>
<!-- /Comment form -->

Answer 1

Try removing these lines
'invokables' => array(
'Rxe\Controller\Index' => 'Rxe\Controller\IndexController',
'Rxe\Controller\View' => 'Rxe\Controller\ViewController',
'Rxe\Controller\Login' => 'Rxe\Controller\LoginController'
),
If it doesn't work, have a look at this tutorial how to create proper controller factories and pass dependencies. https://samsonasik.wordpress.com/2015/03/31/zend-framework-2-using-__invokepluginmanager-manager-in-services-factory/
An example how I build my forms:
namespace Admin\Form;
use Zend\Form\Form;
use Zend\InputFilter\InputFilterProviderInterface;
class ContentForm extends Form implements InputFilterProviderInterface
{
public function __construct()
{
parent::__construct("content");
}
public function init()
{
$this->setAttribute('method', 'post');
$this->add([
'type' => 'Zend\Form\Element\Text',
'name' => 'title',
'attributes' => [
'required' => true,
'size' => 40,
'id' => "seo-caption",
'placeholder' => 'Title',
],
'options' => [
'label' => 'Title',
],
]);
$this->add([
'type' => 'Zend\Form\Element\Text',
'name' => 'text',
'attributes' => [
'class' => 'ckeditor',
'rows' => 5,
'cols' => 80,
],
'options' => [
'label' => 'Text',
],
]);
}
public function getInputFilterSpecification()
{
return [
[
"name"=>"title",
"required" => true,
'filters' => [
['name' => 'StripTags'],
['name' => 'StringTrim'],
],
'validators' => [
['name' => 'NotEmpty'],
[
'name' => 'StringLength',
'options' => [
'encoding' => 'UTF-8',
'min' => 1,
'max' => 200,
],
],
],
],
[
"name"=>"text",
"required" => true,
'filters' => [
['name' => 'StripTags'],
['name' => 'StringTrim'],
],
'validators' => [
['name' => 'NotEmpty'],
[
'name' => 'StringLength',
'options' => [
'encoding' => 'UTF-8',
'min' => 1,
],
],
],
],
];
}
}
Than I create a Factory
namespace Admin\Factory\Controller;
use Admin\Controller\ContentController;
use Zend\Mvc\Controller\ControllerManager;
class ContentFormFactory
{
/**
* #{inheritDoc}
*/
public function __invoke(ControllerManager $controllerManager)
{
return new ContentController(
$controllerManager->getServiceLocator()->get('FormElementManager')->get('Admin\Form\ContentForm')
);
}
}
Inside module.config.php I have this code
'controllers' => [
'factories' => [
'Admin\Controller\Content' => "Admin\Factory\Controller\ContentFormFactory",
],
'invokables' => [
...
],
],
Please, show us some more code.