ZF 2.3 displaying form in different modules - php

Question

I'm trying to create a simple application with Zend Framework 2 and now stacked at the point of adding comments form.
I have two modules "Book" and "Comment". I want to show a form for adding comments that is disposed in module "Comment" from "Books" module controller.
The problem appears when I'm trying to open forms tag.
I'm having this error : " Fatal error: Call to undefined method Comment\Form\CommentForm::openTag()".
I tried to check $this->addComment - with var_dump and everything looks great.
Can anybody help me to solve this problem ?
<div class="row">
<div class="col-xs-12 commentBlock">
<?php
if($this->addComment){
$this->addComment->prepare();
$commentFieldset = $this->addComment->get('comment');
print $this->addComment()->openTag($this->addComment);
}
?>
</div>
</div>
Here is 'Comment' module files :
Comment\Form\CommentFieldset
<?php
namespace Comment\Form;
use Comment\Entity\Comment;
use Zend\Form\Fieldset;
use Zend\InputFilter\InputFilterProviderInterface;
use Zend\Stdlib\Hydrator\ClassMethods as ClassMethodsHydrator;
class CommentFieldset extends Fieldset implements InputFilterProviderInterface
{
public function __construct()
{
parent::__construct('comment');
$this->add(
array(
'name' => 'commentTitle',
'attributes' => array(
// 'required' => 'required',
'class' => 'form-controll',
'placeholder' => 'Введите заголовок комментария'
),
'options' => array(
'label' => 'Заголовок комментария',
'label_attributes' => array(
'class' => 'text-center col-sm-3 control-label',
),
),
)
);
$this->add(
array(
'name' => 'commentText',
'type' => 'Zend\Form\Element\Textarea',
'attributes' => array(
'required' => 'required',
'class' => 'form=-controll',
'palceholder' => 'Введите текст комментария',
),
'options' => array(
'label' => 'Текст комментария',
'label_attributes' => array(
'class' => 'text-center col-sm-3 control-label',
),
),
)
);
$this->add(
array(
'name' => 'commentType',
'type' => 'Zend\Form\Element\Radio',
'attributes' => array(
'required' => 'required',
),
'options' => array(
'label' => 'Тип комментария',
'label_attributes' => array(
'class' => 'text-center col-sm-3 control-label',
),
'value_options' => array(
'positive' => 'postive',
'neutral' => 'neutral',
'negative' => 'negative',
),
),
)
);
}
public function getInputFilterSpecification()
{
return array(
'commentTitle' => array(
'required' => FALSE,
'filters' => array(
array(
'name' => 'Zend\Filter\StripTags',
),
array(
'name' => 'Zend\Filter\HtmlEntities'
),
array(
'name' => 'Zend\Filter\StringTrim',
),
),
'validators' => array(
array(
'name' => 'Zend\Validator\StringLength',
'options' => array(
'min' => 1,
'max' => 250,
),
),
),
),
'commentText' => array(
'required' => TRUE,
'filters' => array(
array(
'name' => 'Zend\Filter\StripTags',
),
array(
'name' => 'Zend\Filter\HtmlEntities'
),
array(
'name' => 'Zend\Filter\StringTrim',
),
),
'validators' => array(
array(
'name' => '\Zend\Validator\StringLength',
'options' => array(
'min' => 1,
'max' => 1000,
),
),
),
),
'commentType' => array(
'required' => true,
'validators' => array(
array(
'name' => 'Zend\Validator\InArray',
'options' => array(
'haystack' => array(
'positive',
'neutral',
'negative',
),
'strict' =>\Zend\Validator\InArray::COMPARE_STRICT,
),
),
),
),
);
}
}
Comment\Form\CommentFieldset
<?php
namespace Comment\Form;
use Zend\Form\Form;
use Zend\InputFilter\InputFilter;
use Zend\Stdlib\Hydrator\ClassMethods as ClassMethodsHydrator;
class CommentForm extends Form
{
public function __construct()
{
parent::__construct('comment');
$this
->setAttribute('method', 'POST')
->setHydrator(new ClassMethodsHydrator())
->setInputFilter(new InputFilter())
;
$this->add(
array(
'type' => 'Comment\Form\CommentFieldset',
'options' => array(
'use_as_base_fieldset' => true,
),
)
);
$this->add(
array(
'name' => 'csrf',
'type' => 'Zend\Form\Element\Csrf',
)
);
$this->add(
array(
'name' => 'captcha',
'type' => 'Zend\Form\Element\Captcha',
'options' => array(
'label' => 'А вы точно-приточно не робот ? ',
'captcha' => new \Zend\Captcha\Figlet(),
'attributes' => array(
'required' => true,
)
),
)
);
$this->add(
array(
'name' => 'submit',
'attributes' => array(
'type' => 'submit',
'value' => 'Добавить комментарий',
'class' => 'bigSubmit btn btn-pink',
),
)
);
$this->setValidationGroup(
array(
'csrf',
'captcha',
'comment' => array(
'commentTitle',
'commentText',
'commentType',
),
)
);
}
}
Comment\View\Helper\DisplayAddCommentForm
<?php
namespace Comment\View\Helper;
use Zend\Form\View\Helper\AbstractHelper;
class DisplayAddCommentForm extends AbstractHelper
{
public function __invoke()
{
return new \Comment\Form\CommentForm();
}
}
Book\Controller\BookController
<?php
namespace Book\Controller;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
use Zend\View\Model\JsonModel;
use Comment\Form\CommentForm;
class BookController extends AbstractActionController
{
protected $bookModel;
protected $commentsModel;
public function showAction()
{
$isbn = $this->params()->fromRoute('num');
$book = $this->bookModel->getU(array($isbn));
$comments = $this->commentsModel->getBookComments(array($isbn));
if($_SESSION['user']){
$commentForm = new CommentForm();
} else {
$commentForm = NULL;
}
return new ViewModel(
array(
'book' => $book,
'comments' => $comments,
'addComment' => $commentForm,
)
);
}
**************
}

Answer 1

openTag() is method from form view helper not from your helper. In your view script change this line : print $this->addComment()->openTag($this->addComment); to this one print $this->form()->openTag($this->addComment);