restrict access to materials descriptions for free users

materio_display.info

@@ -0,0 +1,23 @@
+name = Materio Display
+description = "Materio display module (permissions, ...)"
+
+; Core version (required)
+core = 7.x
+
+; Package name (see http://drupal.org/node/542202 for a list of names)
+package = Materio
+
+; PHP version requirement (optional)
+; php = 5.2
+
+; Loadable code files
+; files[] = materio_ctools_automodal.module
+
+; Module dependencies
+; dependencies[] = user
+
+; Configuration page
+; configure = admin/config/materiobasemod
+
+; For further information about configuration options, see
+; - http://drupal.org/node/542202

materio_display.module

@@ -0,0 +1,58 @@
+<?php
+
+
+/**
+ * Implements hook_init().
+ */
+// function materio_user_init() {
+//   drupal_add_js(drupal_get_path('module', 'materio_user').'/js/materio_user.min.js');
+// }
+
+
+/**
+ * Implements hook_permission().
+ */
+function materio_display_permission() {
+  return array(
+    'view full materiau description' =>  array(
+      'title' => t('view full materiau description'),
+      'description' => t('view full materiau description'),
+    ),
+  );
+}
+
+/**
+ * Implements hook_preprocess().
+ */
+function materio_display_preprocess_field(&$vars, $hook) {
+  // dsm($vars);
+  $element = $vars['element'];
+
+  if($element['#field_name'] == 'field_description'){
+    dsm($vars);
+    if(!user_access('view full materiau description')){
+      $value = $element['#items'][0]['value'];
+
+      switch ($element['#view_mode']) {
+        case 'cardbig':
+        case 'cardfull':
+          $limit = 210;
+          break;
+        default:
+          $limit = 130;
+          break;
+      }
+      $summary = truncate_utf8($value, $limit, TRUE, TRUE);
+
+      $summary .= '<div class="upgrade"><p>'
+        . t("In order to access full description, information about manufacturers and more, you need to upgrade your account.")
+        . l(t("Pricing"), 'node/11187')
+        . '</p></div>';
+
+      // dsm($summary);
+      $vars['items'][0]['#markup'] = $summary;
+
+    }
+  }
+
+}