protected MenuTreeStorage::moveChildren($fields, $original)
Re-parents a link's children when the link itself is moved.
Parameters
array $fields: The changed menu link.
array $original: The original menu link.
File
- core/lib/Drupal/Core/Menu/MenuTreeStorage.php, line 512
Class
- MenuTreeStorage
- Provides a menu tree storage using the database.
Namespace
Drupal\Core\Menu
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | protected function moveChildren($fields, $original) { $query = $this->connection->update($this->table, $this->options); $query->fields(array('menu_name' => $fields['menu_name'])); $expressions = array(); for ($i = 1; $i <= $fields['depth']; $i++) { $expressions[] = array("p$i", ":p_$i", array(":p_$i" => $fields["p$i"])); } $j = $original['depth'] + 1; while ($i <= $this->maxDepth() && $j <= $this->maxDepth()) { $expressions[] = array('p' . $i++, 'p' . $j++, array()); } while ($i <= $this->maxDepth()) { $expressions[] = array('p' . $i++, 0, array()); } $shift = $fields['depth'] - $original['depth']; if ($shift > 0) { // The order of expressions must be reversed so the new values don't // overwrite the old ones before they can be used because "Single-table // UPDATE assignments are generally evaluated from left to right". $expressions = array_reverse($expressions); } foreach ($expressions as $expression) { $query->expression($expression[0], $expression[1], $expression[2]); } $query->expression('depth', 'depth + :depth', array(':depth' => $shift)); $query->condition('menu_name', $original['menu_name']); for ($i = 1; $i <= $this->maxDepth() && $original["p$i"]; $i++) { $query->condition("p$i", $original["p$i"]); } $query->execute();} |
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