public NodeGrantDatabaseStorage::alterQuery($query, array $tables, $op, AccountInterface $account, $base_table)
Alters a query when node access is required.
Parameters
mixed $query: Query that is being altered.
array $tables: A list of tables that need to be part of the alter.
string $op: The operation to be performed on the node. Possible values are:
- "view"
- "update"
- "delete"
- "create"
\Drupal\Core\Session\AccountInterface $account: A user object representing the user for whom the operation is to be performed.
string $base_table: The base table of the query.
Return value
int Status of the access check.
Overrides NodeGrantDatabaseStorageInterface::alterQuery
File
- core/modules/node/src/NodeGrantDatabaseStorage.php, line 150
Class
- NodeGrantDatabaseStorage
- Defines a storage handler class that handles the node grants system.
Namespace
Drupal\node
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | public function alterQuery($query, array $tables, $op, AccountInterface $account, $base_table) { if (!$langcode = $query->getMetaData('langcode')) { $langcode = FALSE; } // Find all instances of the base table being joined -- could appear // more than once in the query, and could be aliased. Join each one to // the node_access table. $grants = node_access_grants($op, $account); foreach ($tables as $nalias => $tableinfo) { $table = $tableinfo['table']; if (!($table instanceof SelectInterface) && $table == $base_table) { // Set the subquery. $subquery = $this->database->select('node_access', 'na') ->fields('na', array('nid')); // If any grant exists for the specified user, then user has access to the // node for the specified operation. $grant_conditions = static::buildGrantsQueryCondition($grants); // Attach conditions to the subquery for nodes. if (count($grant_conditions->conditions())) { $subquery->condition($grant_conditions); } $subquery->condition('na.grant_' . $op, 1, '>='); // Add langcode-based filtering if this is a multilingual site. if (\Drupal::languageManager()->isMultilingual()) { // If no specific langcode to check for is given, use the grant entry // which is set as a fallback. // If a specific langcode is given, use the grant entry for it. if ($langcode === FALSE) { $subquery->condition('na.fallback', 1, '='); } else { $subquery->condition('na.langcode', $langcode, '='); } } $field = 'nid'; // Now handle entities. $subquery->where("$nalias.$field = na.nid"); $query->exists($subquery); } }} |
Please login to continue.