<?php
/**
 * Implement hook_node_info()
 */
function entityquery_node_info() {
    return array(
        'product' => array(
            'name' => t('Product'),
            'base' => 'product',
            'description' => t('You can define new Products here'),
            'has_title' => TRUE,
            'title_label' => t('Product title')
         ),
        'movies' => array(
            'name' => t('Movies'),
            'base' => 'movies',
            'description' => t('You can define new Movies here'),
            'has_title' => TRUE,
            'title_label' => t('Movie title')
         ),
        'books' => array(
            'name' => t('Books'),
            'base' => 'Books',
            'description' => t('You can define new Books here'),
            'has_title' => TRUE,
            'title_label' => t('Books title')
         )
    );
}

/**
 * Implement hook_form()
 */
function product_form($node, $form_state) {
    return node_content_form($node, $form_state);
}

/**
 * Implement hook_form()
 */
function movies_form($node, $form_state) {
    return node_content_form($node, $form_state);
}

/**
 * Implement hook_form()
 */
function books_form($node, $form_state) {
    return node_content_form($node, $form_state);
}

/**
 * Implement hook_block_info().
 */
function entityquery_block_info() {
  $blocks = array();

  $blocks['entityqueryblock'] = array(
    'info' => t('A block to display results from entityquery'),
  );

  return $blocks;
}

/**
 * Implement hook_block_view().
 */
function entityquery_block_view($block_name = '') {
  if ($block_name == 'entityqueryblock') {
    $content ='';
    $block = array(
      'subject' => t('A block to display results from entityquery'),
      'content' => $content,
    );

/**
 * récupérer tous les nodes qui utilisent la classe EFQ pour afficher les titres des nodes dans le bloc.  */

$query = new EntityFieldQuery();
$query
    ->entityCondition('entity_type', 'node')
    ->entityCondition('bundle', array('product', 'movies'))   // aff que produits et films
    ->propertyCondition('status', 1)                          // et publiés
    ->fieldCondition('body', 'value', 'discount', 'CONTAINS') // a discount dans son body
    ->propertyOrderBy('created', 'DESC');                     // tri par date de création

    $result = $query->execute();
    $nodes = array();
    if (isset($result['node'])) {
      $nids = array_keys($result['node']);
      $nodes = node_load_multiple($nids);
    }

    $list = array();
    foreach ($nodes as $node) {
      $options = array('absolute' => TRUE);
      $url = url('node/' . $node->nid, $options);
      $list[] = '<a href='.$url.'>'.$node->title.'</a>';
    }

    $theme_args = array('items' => $list, 'type' => 'ol');
    $content = theme('item_list', $theme_args);

    $block = array(
      'subject' => t('Un block affichant resultats de entityquery'),
      'content' => $content,
    );
    return $block;
  }

}