The tab file cannot be found !

[Daedalus]

Hy, I'm a newbie on Prestashop

 

I try to create a new tab in Admin and I followed the tutorial given on the site

 

1 . I create a new table (ps_test)

2. I create a class Test in classes directory :

<?php
class Test extends ObjectModel{
/** @var string Name */
 public $test;
 protected $fieldsRequired = array( 'test' );
 protected $fieldsSize = array( 'test' => 64 );
 protected $fieldsValidate = array( 'test' => 'isGenericName' );
 protected $table = 'test';
 protected $identifier = 'id_test';

 public function getFields(){
  parent::validateFields();
  $fields[ 'test' ] = pSQL( $this->test );
  return $fields;
 }
}

 

3. I create an AdminTest class in tabs directory

<?php
include_once( PS_ADMIN_DIR . '/../classes/AdminTab.php' );
class AdminTest extends AdminTab{

 public function __construct(){
  $this->lang = false;
  $this->edit = true;
  $this->delete = true;
  $this->fieldsDisplay = array(
'id_test' => array(
'title' => $this->l( 'ID' ),
'align' => 'center',
'width' => 25 ),
'test' => array(
'title' => $this->l( 'Name' ),
'width' => 200 )
  );
  $this->identifier = 'id_test';

  parent::__construct();
 }
 public function displayForm(){
  global $currentIndex;
  $defaultLanguage = intval( Configuration::get( 'PS_LANG_DEFAULT' ) );
  $languages = Language::getLanguages();
  $obj = $this->loadObject( true );
  echo '
  <script type="text/javascript">
  id_language = Number('.$defaultLanguage.');
  </script>';
  echo '
  <form action="' . $currentIndex . '&submitAdd' . $this->table . '=1&token=' . $this->token . '" method="post" class="width3">
  ' . ($obj->id ? '<input type="hidden" name="id_' . $this->table . '" value="' . $obj->id . '" />' : '').'
  <fieldset><legend><img src="../img/admin/profiles.png" />' . $this->l( 'Profiles' ) . '</legend>
  <label>'.$this->l( 'Name:' ).' </label>
  <div class="margin-form">';
  foreach ( $languages as $language )
  echo '
  <div id="name_' . $language['id_lang'|'id_lang'] . '" style="display: ' . ($language['id_lang'|'id_lang'] == $defaultLanguage ? 'block' : 'none') . '; float: left;">
  <input size="33" type="text" name="name_' . $language['id_lang'|'id_lang'] . '" value="' . htmlentities( $this->getFieldValue( $obj, 'name', intval( $language['id_lang'|'id_lang'] ) ), ENT_COMPAT, 'UTF-8' ) . '" /><sup>*</sup>
  </div>';
  $this->displayFlags( $languages, $defaultLanguage, 'name', 'name' );
  echo '
  <div class="clear"></div>
  </div>
  <div class="margin-form">
  <input type="submit" value="' . $this->l( ' Save ' ) . '" name="submitAdd' . $this->table . '" class="button" />
  </div>
  <div class="small"><sup>*</sup> ' . $this->l( 'Required field' ) . '</div>
  </fieldset>
  </form> ';
 }
}
?>

 

4. I define the tab in Employed/Tab without problem

 

Finally the new tab is in submenu of Order but when I click on it, i get the following message

The tab file cannot be found

 

Please help