protected MenuTreeStorage::loadLinks($menu_name, MenuTreeParameters $parameters)
Loads links in the given menu, according to the given tree parameters.
Parameters
string $menu_name: A menu name.
\Drupal\Core\Menu\MenuTreeParameters $parameters: The parameters to determine which menu links to be loaded into a tree. This method will set the absolute minimum depth, which is used in MenuTreeStorage::doBuildTreeData().
Return value
array A flat array of menu links that are part of the menu. Each array element is an associative array of information about the menu link, containing the fields from the {menu_tree} table. This array must be ordered depth-first.
File
- core/lib/Drupal/Core/Menu/MenuTreeStorage.php, line 872
Class
- MenuTreeStorage
- Provides a menu tree storage using the database.
Namespace
Drupal\Core\Menu
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | protected function loadLinks($menu_name, MenuTreeParameters $parameters) { $query = $this->connection->select($this->table, $this->options); $query->fields($this->table); // Allow a custom root to be specified for loading a menu link tree. If // omitted, the default root (i.e. the actual root, '') is used. if ($parameters->root !== '') { $root = $this->loadFull($parameters->root); // If the custom root does not exist, we cannot load the links below it. if (!$root) { return array(); } // When specifying a custom root, we only want to find links whose // parent IDs match that of the root; that's how we ignore the rest of the // tree. In other words: we exclude everything unreachable from the // custom root. for ($i = 1; $i <= $root['depth']; $i++) { $query->condition("p$i", $root["p$i"]); } // When specifying a custom root, the menu is determined by that root. $menu_name = $root['menu_name']; // If the custom root exists, then we must rewrite some of our // parameters; parameters are relative to the root (default or custom), // but the queries require absolute numbers, so adjust correspondingly. if (isset($parameters->minDepth)) { $parameters->minDepth += $root['depth']; } else { $parameters->minDepth = $root['depth']; } if (isset($parameters->maxDepth)) { $parameters->maxDepth += $root['depth']; } } // If no minimum depth is specified, then set the actual minimum depth, // depending on the root. if (!isset($parameters->minDepth)) { if ($parameters->root !== '' && $root) { $parameters->minDepth = $root['depth']; } else { $parameters->minDepth = 1; } } for ($i = 1; $i <= $this->maxDepth(); $i++) { $query->orderBy('p' . $i, 'ASC'); } $query->condition('menu_name', $menu_name); if (!empty($parameters->expandedParents)) { $query->condition('parent', $parameters->expandedParents, 'IN'); } if (isset($parameters->minDepth) && $parameters->minDepth > 1) { $query->condition('depth', $parameters->minDepth, '>='); } if (isset($parameters->maxDepth)) { $query->condition('depth', $parameters->maxDepth, '<='); } // Add custom query conditions, if any were passed. if (!empty($parameters->conditions)) { // Only allow conditions that are testing definition fields. $parameters->conditions = array_intersect_key($parameters->conditions, array_flip($this->definitionFields())); $serialized_fields = $this->serializedFields(); foreach ($parameters->conditions as $column => $value) { if (is_array($value)) { $operator = $value[1]; $value = $value[0]; } else { $operator = '='; } if (in_array($column, $serialized_fields)) { $value = serialize($value); } $query->condition($column, $value, $operator); } } $links = $this->safeExecuteSelect($query)->fetchAllAssoc('id', \PDO::FETCH_ASSOC); return $links;} |
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