Add update to set existing Annotations default permission value.

profiles/pece/modules/pece/pece_annotations/pece_annotations.install

@@ -0,0 +1,102 @@
+<?php
+/**
+ * @file
+ * Installation code for the PECE Annotations module.
+ */
+
+/**
+ * Helper to set Annotation's permission value.
+ */
+function pece_annotations_set_default_permissions($annotation, $permission = 'open') {
+  $annot_wrapper = entity_metadata_wrapper('node', $annotation);
+  $annot_wrapper->field_permissions->set($permission);
+  $annot_wrapper->save();
+}
+
+/**
+ * Set default permission to Open on existing Annotations.
+ */
+function pece_annotations_update_7101(&$sandbox) {
+
+  // If this is the first pass through this update function then set some vars.
+  if (!isset($sandbox['progress'])) {
+
+    // Get published Annotations.
+    $query = db_select('node', 'n');
+    $query->fields('n', array('nid'))
+      ->condition('n.type', 'pece_annotation')
+      ->condition('n.status', 1);
+    $result = $query->execute();
+
+    $sandbox['progress'] = 0;
+    $sandbox['max'] = $result->rowCount();
+  }
+
+  // Prepares the vars for the db_query_range().
+  $sql = variable_get('pece_annotations_perms_update_sql', NULL);
+  $sql_args = variable_get('pece_annotations_perms_update_sql_args', NULL);
+
+  // Stores the query string for the following progresses.
+  if (empty($sql) && !empty($query)) {
+    $sql = $query->__toString();
+    variable_set('pece_annotations_perms_update_sql', $sql);
+  }
+
+  // Stores the query arguments for the following progresses.
+  if (empty($sql_args) && !empty($query)) {
+    $sql_args = $query->arguments();
+    variable_set('pece_annotations_perms_update_sql_args', $sql_args);
+  }
+
+  // Exit if no content available.
+  if (empty($sandbox['max'])) {
+    $sandbox['#finished'] = 1;
+    return t('No contents available for update.');
+  }
+
+  $nodes_per_pass = 50;
+
+  // Get the nodes to process during this pass.
+  $result = db_query_range($sql, $sandbox['progress'], $nodes_per_pass, $sql_args);
+
+  while ($row = $result->fetchAssoc()) {
+    // Load the node and updates permission field.
+    $node = node_load($row['nid']);
+    $node_info = array('@nid' => $node->nid, '@title' => $node->title);
+    if (!property_exists($node, 'field_permissions')) {
+      // Logs Error.
+      watchdog('pece_annotations', 'Annotation @title\'s (id: @nid) permissions field not available.', $node_info, WATCHDOG_WARNING);
+      continue;
+    }
+    // Update permissions field.
+    pece_annotations_set_default_permissions($node);
+
+    // Update the progress information.
+    $sandbox['progress']++;
+  }
+  // Set the "finished" status, to tell batch engine whether this function
+  // needs to run again. If you set a float, this will indicate the progress of
+  // the batch so the progress bar will update.
+  $sandbox['#finished'] = ($sandbox['progress'] >= $sandbox['max']) ? 1 : ($sandbox['progress'] / $sandbox['max']);
+
+  if ($sandbox['#finished'] === 1) {
+    // A final log of the number of nodes that were updated.
+    watchdog('pece_annotations', '!count annotations updated in total.', array('!count' => $sandbox['progress']), WATCHDOG_INFO);
+
+    // Running through drush.
+    if (drupal_is_cli()) {
+      drupal_set_message(t('!count annotations updated in total.', array('!count' => $sandbox['progress'])));
+    }
+
+    // Removes the variables that are not needed anymore.
+    variable_del('pece_annotations_perms_update_sql');
+    variable_del('pece_annotations_perms_update_sql_args');
+
+    // Rebuild node permissions.
+    node_access_rebuild($batch_mode = TRUE);
+
+    // hook_update_N() may optionally return a string which will be displayed
+    // to the user.
+    return t('!count annotations updated in total.', array('!count' => $sandbox['progress']));
+  }
+}