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+<?php
+
+/**
+ * @file
+ * A dummy module implementing node access related hooks for testing purposes.
+ *
+ * A dummy module implementing node access related hooks to test API interaction
+ * with the Node module. This module restricts view permission to those with
+ * a special 'node test view' permission.
+ */
+
+/**
+ * Implements hook_node_grants().
+ */
+function node_access_test_node_grants($account, $op) {
+ $grants = array();
+ // First grant a grant to the author for own content.
+ $grants['node_access_test_author'] = array($account->uid);
+ if ($op == 'view' && user_access('node test view', $account)) {
+ $grants['node_access_test'] = array(8888, 8889);
+ }
+ if ($op == 'view' && $account->uid == variable_get('node_test_node_access_all_uid', 0)) {
+ $grants['node_access_all'] = array(0);
+ }
+ return $grants;
+}
+
+/**
+ * Implements hook_node_access_records().
+ */
+function node_access_test_node_access_records($node) {
+ $grants = array();
+ // For NodeAccessBaseTableTestCase, only set records for private nodes.
+ if (!variable_get('node_access_test_private') || $node->private) {
+ $grants[] = array(
+ 'realm' => 'node_access_test',
+ 'gid' => 8888,
+ 'grant_view' => 1,
+ 'grant_update' => 0,
+ 'grant_delete' => 0,
+ 'priority' => 0,
+ );
+ $grants[] = array(
+ 'realm' => 'node_access_test',
+ 'gid' => 8889,
+ 'grant_view' => 1,
+ 'grant_update' => 0,
+ 'grant_delete' => 0,
+ 'priority' => 0,
+ );
+ // For the author realm, the GID is equivalent to a UID, which
+ // means there are many many groups of just 1 user.
+ $grants[] = array(
+ 'realm' => 'node_access_test_author',
+ 'gid' => $node->uid,
+ 'grant_view' => 1,
+ 'grant_update' => 1,
+ 'grant_delete' => 1,
+ 'priority' => 0,
+ );
+ }
+
+ return $grants;
+}
+
+/**
+ * Implements hook_permission().
+ *
+ * Sets up permissions for this module.
+ */
+function node_access_test_permission() {
+ return array('node test view' => array('title' => 'View content'));
+}
+
+/**
+ * Implements hook_menu().
+ *
+ * Sets up a page that lists nodes.
+ */
+function node_access_test_menu() {
+ $items = array();
+ $items['node_access_test_page'] = array(
+ 'title' => 'Node access test',
+ 'page callback' => 'node_access_test_page',
+ 'access arguments' => array('access content'),
+ 'type' => MENU_SUGGESTED_ITEM,
+ );
+ $items['node_access_entity_test_page'] = array(
+ 'title' => 'Node access test',
+ 'page callback' => 'node_access_entity_test_page',
+ 'access arguments' => array('access content'),
+ 'type' => MENU_SUGGESTED_ITEM,
+ );
+ return $items;
+}
+
+/**
+ * Page callback for node access test page.
+ *
+ * Page should say "No nodes" if there are no nodes, and "Yes, # nodes" (with
+ * the number filled in) if there were nodes the user could access. Also, the
+ * database query is shown, and a list of the node IDs, for debugging purposes.
+ * And if there is a query exception, the page says "Exception" and gives the
+ * error.
+ */
+function node_access_test_page() {
+ $output = '';
+
+ try {
+ $query = db_select('node', 'mytab')
+ ->fields('mytab');
+ $query->addTag('node_access');
+ $result = $query->execute()->fetchAll();
+
+ if (count($result)) {
+ $output .= '<p>Yes, ' . count($result) . ' nodes</p>';
+ $output .= '<ul>';
+ foreach ($result as $item) {
+ $output .= '<li>' . $item->nid . '</li>';
+ }
+ $output .= '</ul>';
+ }
+ else {
+ $output .= '<p>No nodes</p>';
+ }
+
+ $output .= '<p>' . ((string) $query ) . '</p>';
+ }
+ catch (Exception $e) {
+ $output = '<p>Exception</p>';
+ $output .= '<p>' . $e->getMessage() . '</p>';
+ }
+
+ return $output;
+}
+
+/**
+ * Page callback for node access entity test page.
+ *
+ * Page should say "No nodes" if there are no nodes, and "Yes, # nodes" (with
+ * the number filled in) if there were nodes the user could access. Also, the
+ * database query is shown, and a list of the node IDs, for debugging purposes.
+ * And if there is a query exception, the page says "Exception" and gives the
+ * error.
+ *
+ * @see node_access_test_menu()
+ */
+function node_access_entity_test_page() {
+ $output = '';
+ try {
+ $query = new EntityFieldQuery;
+ $result = $query->fieldCondition('body', 'value', 'A', 'STARTS_WITH')->execute();
+ if (!empty($result['node'])) {
+ $output .= '<p>Yes, ' . count($result['node']) . ' nodes</p>';
+ $output .= '<ul>';
+ foreach ($result['node'] as $nid => $v) {
+ $output .= '<li>' . $nid . '</li>';
+ }
+ $output .= '</ul>';
+ }
+ else {
+ $output .= '<p>No nodes</p>';
+ }
+ }
+ catch (Exception $e) {
+ $output = '<p>Exception</p>';
+ $output .= '<p>' . $e->getMessage() . '</p>';
+ }
+
+ return $output;
+}
+
+/**
+ * Implements hook_form_BASE_FORM_ID_alter().
+ */
+function node_access_test_form_node_form_alter(&$form, $form_state) {
+ // Only show this checkbox for NodeAccessBaseTableTestCase.
+ if (variable_get('node_access_test_private')) {
+ $form['private'] = array(
+ '#type' => 'checkbox',
+ '#title' => t('Private'),
+ '#description' => t('Check here if this content should be set private and only shown to privileged users.'),
+ '#default_value' => isset($form['#node']->private) ? $form['#node']->private : FALSE,
+ );
+ }
+}
+
+/**
+ * Implements hook_node_load().
+ */
+function node_access_test_node_load($nodes, $types) {
+ $result = db_query('SELECT nid, private FROM {node_access_test} WHERE nid IN(:nids)', array(':nids' => array_keys($nodes)));
+ foreach ($result as $record) {
+ $nodes[$record->nid]->private = $record->private;
+ }
+}
+
+/**
+ * Implements hook_node_delete().
+ */
+
+function node_access_test_node_delete($node) {
+ db_delete('node_access_test')->condition('nid', $node->nid)->execute();
+}
+
+/**
+ * Implements hook_node_insert().
+ */
+function node_access_test_node_insert($node) {
+ _node_access_test_node_write($node);
+}
+
+/**
+ * Implements hook_nodeapi_update().
+ */
+function node_access_test_node_update($node) {
+ _node_access_test_node_write($node);
+}
+
+/**
+ * Helper for node insert/update.
+ */
+function _node_access_test_node_write($node) {
+ if (isset($node->private)) {
+ db_merge('node_access_test')
+ ->key(array('nid' => $node->nid))
+ ->fields(array('private' => (int) $node->private))
+ ->execute();
+ }
+}