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<?php |
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/** |
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* @package midcom.helper.reflector |
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* @author The Midgard Project, http://www.midgard-project.org |
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* @copyright The Midgard Project, http://www.midgard-project.org |
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* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License |
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*/ |
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use midgard\portable\storage\connection; |
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use midgard\portable\api\mgdobject; |
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/** |
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* The Grand Unified Reflector |
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* |
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* @package midcom.helper.reflector |
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*/ |
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class midcom_helper_reflector extends midcom_baseclasses_components_purecode |
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{ |
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public $mgdschema_class = ''; |
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/** |
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* @var midgard_reflection_property |
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*/ |
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protected $_mgd_reflector; |
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protected $_dummy_object; |
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private static $_cache = [ |
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'l10n' => [], |
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'instance' => [], |
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'title' => [], |
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'name' => [], |
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'fieldnames' => [], |
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'object_icon_map' => null, |
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'create_type_map' => null |
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]; |
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/** |
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* Constructor, takes classname or object, resolved MgdSchema root class automagically |
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* |
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* @param string|mgdobject $src classname or object |
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*/ |
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public function __construct($src) |
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{ |
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parent::__construct(); |
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// Resolve root class name |
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$this->mgdschema_class = self::resolve_baseclass($src); |
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// Could not resolve root class name |
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if (empty($this->mgdschema_class)) { |
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// Handle object vs string |
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$original_class = (is_object($src)) ? get_class($src) : $src; |
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throw new midcom_error("Could not determine MgdSchema baseclass for '{$original_class}'"); |
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} |
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// Instantiate midgard reflector |
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$this->_mgd_reflector = new midgard_reflection_property($this->mgdschema_class); |
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// Instantiate dummy object |
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$this->_dummy_object = new $this->mgdschema_class; |
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} |
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/** |
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* Get cached reflector instance |
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* |
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* @param mixed $src Object or classname |
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* @return static |
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*/ |
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public static function &get($src) |
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{ |
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$identifier = get_called_class() . (is_object($src) ? get_class($src) : $src); |
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if (!isset(self::$_cache['instance'][$identifier])) { |
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self::$_cache['instance'][$identifier] = new static($src); |
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} |
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return self::$_cache['instance'][$identifier]; |
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} |
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/** |
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* Get object's (mgdschema) fieldnames. |
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* |
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* @param object $object Object The object to query |
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*/ |
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public static function get_object_fieldnames(object $object) : array |
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{ |
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$classname = get_class($object); |
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$metadata = false; |
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if (midcom::get()->dbclassloader->is_midcom_db_object($object)) { |
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$classname = $object->__mgdschema_class_name__; |
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} elseif ($object instanceof midcom_helper_metadata) { |
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$metadata = true; |
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$classname = $object->object->__mgdschema_class_name__; |
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} |
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if (is_subclass_of($classname, mgdobject::class)) { |
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$cm = connection::get_em()->getClassMetadata($classname); |
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return $cm->get_schema_properties($metadata); |
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} |
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return array_keys(get_object_vars($object)); |
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} |
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public function property_exists(string $property, bool $metadata = false) : bool |
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{ |
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return $this->_mgd_reflector->property_exists($property, $metadata); |
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} |
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/** |
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* Gets a midcom_helper_l10n instance for component governing the type |
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*/ |
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public function get_component_l10n() : midcom_services_i18n_l10n |
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{ |
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if (!isset(self::$_cache['l10n'][$this->mgdschema_class])) { |
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if ($component = midcom::get()->dbclassloader->get_component_for_class($this->mgdschema_class)) { |
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self::$_cache['l10n'][$this->mgdschema_class] = $this->_i18n->get_l10n($component); |
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} else { |
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debug_add("Could not resolve component for class {$this->mgdschema_class}, using our own l10n", MIDCOM_LOG_INFO); |
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self::$_cache['l10n'][$this->mgdschema_class] = $this->_l10n; |
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} |
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} |
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return self::$_cache['l10n'][$this->mgdschema_class]; |
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} |
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/** |
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* Get the localized label of the class |
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* |
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* @todo remove any hardcoded class names/prefixes |
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*/ |
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public function get_class_label() : string |
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{ |
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$component_l10n = $this->get_component_l10n(); |
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$use_classname = $this->mgdschema_class; |
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$midcom_dba_classname = midcom::get()->dbclassloader->get_midcom_class_name_for_mgdschema_object($use_classname); |
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if (!empty($midcom_dba_classname)) { |
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$use_classname = $midcom_dba_classname; |
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} |
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$use_classname = preg_replace('/_(db|dba)$/', '', $use_classname); |
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$label = $component_l10n->get($use_classname); |
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if ($label == $use_classname) { |
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// Class string not localized, try Bergie's way to pretty-print |
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$classname_parts = explode('_', $use_classname); |
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if (count($classname_parts) >= 3) { |
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// Drop first two parts of class name |
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array_shift($classname_parts); |
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array_shift($classname_parts); |
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} |
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// FIXME: Remove hardcoded class prefixes |
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$use_label = preg_replace('/(openpsa|notifications)_/', '', implode('_', $classname_parts)); |
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$use_label = str_replace('_', ' ', $use_label); |
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$label = $component_l10n->get($use_label); |
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if ($use_label == $label) { |
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$label = ucwords($use_label); |
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} |
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} |
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return $label; |
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} |
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/** |
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* Get property name to use as label |
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*/ |
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public function get_label_property() : string |
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{ |
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$midcom_class = midcom::get()->dbclassloader->get_midcom_class_name_for_mgdschema_object($this->mgdschema_class); |
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$obj = ($midcom_class) ? new $midcom_class : new $this->mgdschema_class; |
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if (method_exists($obj, 'get_label_property')) { |
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return $obj->get_label_property(); |
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} |
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return $this->get_property('title', $obj) ?? |
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$this->get_property('name', $obj) ?? |
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'guid'; |
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} |
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/** |
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* Get the object label property value |
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*/ |
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public function get_object_label(object $object) : ?string |
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{ |
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if ($object instanceof mgdobject) { |
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try { |
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$obj = midcom::get()->dbfactory->convert_midgard_to_midcom($object); |
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} catch (midcom_error $e) { |
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return null; |
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} |
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} else { |
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$obj = $object; |
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} |
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if (method_exists($obj, 'get_label')) { |
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return $obj->get_label(); |
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} |
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$properties = array_flip($obj->get_properties()); |
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if (empty($properties)) { |
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debug_add("Could not list object properties, aborting", MIDCOM_LOG_ERROR); |
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return null; |
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} |
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if (isset($properties['title'])) { |
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return $obj->title; |
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} |
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if (isset($properties['name'])) { |
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return $obj->name; |
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} |
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if ($obj->id > 0) { |
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return $this->get_class_label() . ' #' . $obj->id; |
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} |
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return ''; |
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} |
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/** |
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* Get the name of the create icon image |
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*/ |
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public static function get_create_icon(string $type) : string |
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{ |
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if (is_callable([$type, 'get_create_icon'])) { |
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// class has static method to tell us the answer ? great ! |
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return $type::get_create_icon(); |
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} |
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return self::get_icon($type, 'create_type'); |
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} |
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/** |
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* heuristics magic (instead of adding something here, take a look at |
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* config keys "create_type_magic" and "object_icon_magic") |
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*/ |
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private static function get_icon(string $object_class, string $mode) : string |
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{ |
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$object_baseclass = self::resolve_baseclass($object_class); |
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if (null === self::$_cache[$mode . '_map']) { |
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self::$_cache[$mode . '_map'] = self::_get_icon_map($mode . '_magic', $mode === 'create_type' ? 'file-o' : 'file'); |
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} |
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$map = self::$_cache[$mode . '_map']; |
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switch (true) { |
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case (isset($map[$object_class])): |
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return $map[$object_class]; |
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case (isset($map[$object_baseclass])): |
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return $map[$object_baseclass]; |
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case (str_contains($object_class, 'person')): |
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return $mode === 'create_type' ? 'user-o' : 'user'; |
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case (str_contains($object_class, 'event')): |
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return 'calendar-o'; |
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case (str_contains($object_class, 'member')): |
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case (str_contains($object_class, 'organization')): |
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case (str_contains($object_class, 'group')): |
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return 'users'; |
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case (str_contains($object_class, 'element')): |
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return 'file-code-o'; |
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default: |
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return $map['__default__']; |
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} |
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} |
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/** |
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* Get the object icon |
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*/ |
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public static function get_object_icon(object $obj) : string |
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{ |
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12 |
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if (method_exists($obj, 'get_icon')) { |
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// object knows it's icon, how handy! |
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$icon = $obj->get_icon(); |
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} else { |
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$icon = self::get_icon(get_class($obj), 'object_icon'); |
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} |
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return '<i class="fa fa-' . $icon . '"></i>'; |
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} |
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private static function _get_icon_map(string $config_key, string $fallback) : array |
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{ |
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2 |
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$config = midcom_baseclasses_components_configuration::get('midcom.helper.reflector', 'config'); |
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2 |
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$icons2classes = $config->get($config_key); |
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2 |
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$icon_map = []; |
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//sanity |
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2 |
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if (!is_array($icons2classes)) { |
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throw new midcom_error('Config key "' . $config_key . '" is not an array'); |
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} |
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2 |
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foreach ($icons2classes as $icon => $classes) { |
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2 |
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$icon_map = array_merge($icon_map, array_fill_keys($classes, $icon)); |
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} |
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2 |
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if (!isset($icon_map['__default__'])) { |
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$icon_map['__default__'] = $fallback; |
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} |
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2 |
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return $icon_map; |
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} |
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/** |
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299
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* Get class properties to use as search fields in choosers or other direct DB searches |
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300
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*/ |
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301
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15 |
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public function get_search_properties() : array |
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302
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{ |
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303
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// Return cached results if we have them |
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304
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15 |
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static $cache = []; |
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305
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15 |
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if (isset($cache[$this->mgdschema_class])) { |
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9 |
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return $cache[$this->mgdschema_class]; |
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307
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} |
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308
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7 |
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debug_add("Starting analysis for class {$this->mgdschema_class}"); |
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309
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|
|
|
|
310
|
7 |
|
$properties = self::get_object_fieldnames($this->_dummy_object); |
|
311
|
|
|
|
|
312
|
|
|
$default_properties = [ |
|
313
|
7 |
|
'title' => true, |
|
314
|
|
|
'tag' => true, |
|
315
|
|
|
'firstname' => true, |
|
316
|
|
|
'lastname' => true, |
|
317
|
|
|
'official' => true, |
|
318
|
|
|
'username' => true, |
|
319
|
|
|
]; |
|
320
|
|
|
|
|
321
|
7 |
|
$search_properties = array_intersect_key($default_properties, array_flip($properties)); |
|
322
|
|
|
|
|
323
|
7 |
|
foreach ($properties as $property) { |
|
324
|
7 |
|
if (str_contains($property, 'name')) { |
|
325
|
6 |
|
$search_properties[$property] = true; |
|
326
|
|
|
} |
|
327
|
|
|
// TODO: More per property heuristics |
|
328
|
|
|
} |
|
329
|
|
|
// TODO: parent and up heuristics |
|
330
|
|
|
|
|
331
|
7 |
|
$label_prop = $this->get_label_property(); |
|
332
|
|
|
|
|
333
|
7 |
|
if ( $label_prop != 'guid' |
|
334
|
7 |
|
&& $this->_mgd_reflector->property_exists($label_prop)) { |
|
335
|
6 |
|
$search_properties[$label_prop] = true; |
|
336
|
|
|
} |
|
337
|
|
|
|
|
338
|
|
|
// Exceptions - always search these fields |
|
339
|
7 |
|
$always_search_all = $this->_config->get('always_search_fields') ?: []; |
|
340
|
7 |
|
if (!empty($always_search_all[$this->mgdschema_class])) { |
|
341
|
1 |
|
$fields = array_intersect($always_search_all[$this->mgdschema_class], $properties); |
|
342
|
1 |
|
$search_properties += array_flip($fields); |
|
343
|
|
|
} |
|
344
|
|
|
|
|
345
|
|
|
// Exceptions - never search these fields |
|
346
|
7 |
|
$never_search_all = $this->_config->get('never_search_fields') ?: []; |
|
347
|
7 |
|
if (!empty($never_search_all[$this->mgdschema_class])) { |
|
348
|
|
|
$search_properties = array_diff_key($search_properties, array_flip($never_search_all[$this->mgdschema_class])); |
|
349
|
|
|
} |
|
350
|
|
|
|
|
351
|
7 |
|
$search_properties = array_keys($search_properties); |
|
352
|
7 |
|
debug_print_r("Search properties for {$this->mgdschema_class}: ", $search_properties); |
|
353
|
7 |
|
$cache[$this->mgdschema_class] = $search_properties; |
|
354
|
7 |
|
return $search_properties; |
|
355
|
|
|
} |
|
356
|
|
|
|
|
357
|
|
|
/** |
|
358
|
|
|
* Gets a list of link properties and the links target info |
|
359
|
|
|
* |
|
360
|
|
|
* Link info key specification |
|
361
|
|
|
* 'class' string link target class name |
|
362
|
|
|
* 'target' string link target property (of target class) |
|
363
|
|
|
* |
|
364
|
|
|
* @return array multidimensional array keyed by property, values are arrays with link info (or false in case of failure) |
|
365
|
|
|
*/ |
|
366
|
4 |
|
public function get_link_properties() : array |
|
367
|
|
|
{ |
|
368
|
|
|
// Return cached results if we have them |
|
369
|
4 |
|
static $cache = []; |
|
370
|
4 |
|
if (isset($cache[$this->mgdschema_class])) { |
|
371
|
1 |
|
return $cache[$this->mgdschema_class]; |
|
372
|
|
|
} |
|
373
|
3 |
|
debug_add("Starting analysis for class {$this->mgdschema_class}"); |
|
374
|
|
|
|
|
375
|
|
|
// Shorthands |
|
376
|
3 |
|
$ref = $this->_mgd_reflector; |
|
377
|
3 |
|
$obj = $this->_dummy_object; |
|
378
|
|
|
|
|
379
|
|
|
// Get property list and start checking (or abort on error) |
|
380
|
3 |
|
$links = []; |
|
381
|
3 |
|
foreach (self::get_object_fieldnames($obj) as $property) { |
|
382
|
3 |
|
if ($property == 'guid') { |
|
383
|
|
|
// GUID, even though of type MGD_TYPE_GUID, is never a link |
|
384
|
3 |
|
continue; |
|
385
|
|
|
} |
|
386
|
|
|
|
|
387
|
3 |
|
if ( !$ref->is_link($property) |
|
388
|
3 |
|
&& $ref->get_midgard_type($property) != MGD_TYPE_GUID) { |
|
389
|
3 |
|
continue; |
|
390
|
|
|
} |
|
391
|
3 |
|
debug_add("Processing property '{$property}'"); |
|
392
|
|
|
$linkinfo = [ |
|
393
|
3 |
|
'class' => $ref->get_link_name($property), |
|
394
|
3 |
|
'target' => $ref->get_link_target($property), |
|
395
|
3 |
|
'type' => $ref->get_midgard_type($property), |
|
396
|
|
|
]; |
|
397
|
|
|
|
|
398
|
3 |
|
if (!$linkinfo['target'] && $linkinfo['type'] == MGD_TYPE_GUID) { |
|
399
|
1 |
|
$linkinfo['target'] = 'guid'; |
|
400
|
|
|
} |
|
401
|
|
|
|
|
402
|
3 |
|
$links[$property] = $linkinfo; |
|
403
|
|
|
} |
|
404
|
|
|
|
|
405
|
3 |
|
debug_print_r("Links for {$this->mgdschema_class}: ", $links); |
|
406
|
3 |
|
$cache[$this->mgdschema_class] = $links; |
|
407
|
3 |
|
return $links; |
|
408
|
|
|
} |
|
409
|
|
|
|
|
410
|
|
|
/** |
|
411
|
|
|
* Map extended classes |
|
412
|
|
|
* |
|
413
|
|
|
* For example org.openpsa.* components often expand core objects, |
|
414
|
|
|
* in config we specify which classes we wish to substitute with which |
|
415
|
|
|
* |
|
416
|
|
|
* @param string $schema_type classname to check rewriting for |
|
417
|
|
|
* @return string new classname (or original in case no rewriting is to be done) |
|
418
|
|
|
*/ |
|
419
|
38 |
|
public static function class_rewrite(string $schema_type) : string |
|
420
|
|
|
{ |
|
421
|
38 |
|
static $extends = false; |
|
422
|
38 |
|
if ($extends === false) { |
|
423
|
|
|
$extends = midcom_baseclasses_components_configuration::get('midcom.helper.reflector', 'config')->get('class_extends'); |
|
424
|
|
|
// Safety against misconfiguration |
|
425
|
|
|
if (!is_array($extends)) { |
|
426
|
|
|
throw new midcom_error("config->get('class_extends') did not return array, invalid configuration ??"); |
|
427
|
|
|
} |
|
428
|
|
|
} |
|
429
|
38 |
|
if ( isset($extends[$schema_type]) |
|
430
|
38 |
|
&& class_exists($extends[$schema_type])) { |
|
431
|
2 |
|
return $extends[$schema_type]; |
|
432
|
|
|
} |
|
433
|
37 |
|
return $schema_type; |
|
434
|
|
|
} |
|
435
|
|
|
|
|
436
|
|
|
/** |
|
437
|
|
|
* See if two MgdSchema classes are the same |
|
438
|
|
|
* |
|
439
|
|
|
* NOTE: also takes into account the various extended class scenarios |
|
440
|
|
|
* |
|
441
|
|
|
* @param string $class_one first class to compare |
|
442
|
|
|
* @param string $class_two second class to compare |
|
443
|
|
|
*/ |
|
444
|
11 |
|
public static function is_same_class($class_one, $class_two) : bool |
|
445
|
|
|
{ |
|
446
|
11 |
|
$one = self::resolve_baseclass($class_one); |
|
447
|
11 |
|
$two = self::resolve_baseclass($class_two); |
|
448
|
11 |
|
return $one == $two; |
|
449
|
|
|
} |
|
450
|
|
|
|
|
451
|
|
|
/** |
|
452
|
|
|
* Get the MgdSchema classname for given class |
|
453
|
|
|
* |
|
454
|
|
|
* @param mixed $classname either string (class name) or object |
|
455
|
|
|
* @return string the base class name |
|
456
|
|
|
*/ |
|
457
|
225 |
|
public static function resolve_baseclass($classname) : ?string |
|
458
|
|
|
{ |
|
459
|
225 |
|
static $cached = []; |
|
460
|
|
|
|
|
461
|
225 |
|
if (is_object($classname)) { |
|
462
|
173 |
|
$class_instance = $classname; |
|
463
|
173 |
|
$classname = get_class($classname); |
|
464
|
|
|
} |
|
465
|
|
|
|
|
466
|
225 |
|
if (empty($classname)) { |
|
467
|
|
|
return null; |
|
468
|
|
|
} |
|
469
|
|
|
|
|
470
|
225 |
|
if (isset($cached[$classname])) { |
|
471
|
205 |
|
return $cached[$classname]; |
|
472
|
|
|
} |
|
473
|
|
|
|
|
474
|
36 |
|
if (!isset($class_instance)) { |
|
475
|
10 |
|
$class_instance = new $classname(); |
|
476
|
|
|
} |
|
477
|
|
|
|
|
478
|
|
|
// Check for decorators first |
|
479
|
36 |
|
if (!empty($class_instance->__mgdschema_class_name__)) { |
|
480
|
29 |
|
$parent_class = $class_instance->__mgdschema_class_name__; |
|
481
|
|
|
} else { |
|
482
|
7 |
|
$parent_class = $classname; |
|
483
|
|
|
} |
|
484
|
|
|
|
|
485
|
36 |
|
$cached[$classname] = self::class_rewrite($parent_class); |
|
486
|
|
|
|
|
487
|
36 |
|
return $cached[$classname]; |
|
488
|
|
|
} |
|
489
|
|
|
|
|
490
|
389 |
|
private function get_property(string $type, object $object) : ?string |
|
491
|
|
|
{ |
|
492
|
|
|
// Cache results per class within request |
|
493
|
389 |
|
$key = get_class($object); |
|
494
|
389 |
|
if (array_key_exists($key, self::$_cache[$type])) { |
|
495
|
374 |
|
return self::$_cache[$type][$key]; |
|
496
|
|
|
} |
|
497
|
51 |
|
self::$_cache[$type][$key] = null; |
|
498
|
|
|
|
|
499
|
|
|
// Configured properties |
|
500
|
51 |
|
$exceptions = $this->_config->get($type . '_exceptions'); |
|
501
|
51 |
|
foreach ($exceptions as $class => $property) { |
|
502
|
51 |
|
if (midcom::get()->dbfactory->is_a($object, $class)) { |
|
503
|
8 |
|
if ( $property !== false |
|
504
|
8 |
|
&& !$this->_mgd_reflector->property_exists($property)) { |
|
505
|
|
|
debug_add("Matched class '{$key}' to '{$class}' via is_a but property '{$property}' does not exist", MIDCOM_LOG_ERROR); |
|
506
|
|
|
} else { |
|
507
|
8 |
|
self::$_cache[$type][$key] = $property; |
|
508
|
|
|
} |
|
509
|
8 |
|
return self::$_cache[$type][$key]; |
|
510
|
|
|
} |
|
511
|
|
|
} |
|
512
|
|
|
// The simple heuristic |
|
513
|
46 |
|
if ($this->_mgd_reflector->property_exists($type)) { |
|
514
|
21 |
|
self::$_cache[$type][$key] = $type; |
|
515
|
|
|
} |
|
516
|
46 |
|
return self::$_cache[$type][$key]; |
|
517
|
|
|
} |
|
518
|
|
|
|
|
519
|
|
|
/** |
|
520
|
|
|
* Resolve the "name" property of given object |
|
521
|
|
|
* |
|
522
|
|
|
* @param object $object the object to get the name property for |
|
523
|
|
|
*/ |
|
524
|
304 |
|
public static function get_name_property(object $object) : ?string |
|
525
|
|
|
{ |
|
526
|
304 |
|
return self::get($object)->get_property('name', $object); |
|
527
|
|
|
} |
|
528
|
|
|
|
|
529
|
|
|
/** |
|
530
|
|
|
* Resolve the "title" of given object |
|
531
|
|
|
* |
|
532
|
|
|
* NOTE: This is distinctly different from get_object_label, which will always return something |
|
533
|
|
|
* even if it's just the class name and GUID, also it will for some classes include extra info (like datetimes) |
|
534
|
|
|
* which we do not want here. |
|
535
|
|
|
* |
|
536
|
|
|
* @param object $object the object to get the name property for |
|
537
|
|
|
*/ |
|
538
|
184 |
|
public static function get_object_title(object $object) : ?string |
|
539
|
|
|
{ |
|
540
|
184 |
|
if ($title_property = self::get_title_property($object)) { |
|
541
|
181 |
|
return (string) $object->{$title_property}; |
|
542
|
|
|
} |
|
543
|
|
|
// Could not resolve valid property |
|
544
|
3 |
|
return null; |
|
545
|
|
|
} |
|
546
|
|
|
|
|
547
|
|
|
/** |
|
548
|
|
|
* Resolve the "title" property of given object |
|
549
|
|
|
* |
|
550
|
|
|
* NOTE: This is distinctly different from get_label_property, which will always return something |
|
551
|
|
|
* even if it's just the guid |
|
552
|
|
|
* |
|
553
|
|
|
* @param object $object The object to get the title property for |
|
554
|
|
|
*/ |
|
555
|
206 |
|
public static function get_title_property(object $object) : ?string |
|
556
|
|
|
{ |
|
557
|
206 |
|
return self::get($object)->get_property('title', $object); |
|
558
|
|
|
} |
|
559
|
|
|
} |
|
560
|
|
|
|
flack /
openpsa
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