PHP Object::findOne方法代码示例

 /**
  * Returns model instance by ID using IdentityMap
  * @param integer $id
  * @return Object
  */
 public static function findById($id)
 {
     if (!isset(static::$identity_map[$id])) {
         static::$identity_map[$id] = Yii::$app->cache->get('Object: ' . $id);
         if (static::$identity_map[$id] === false) {
             static::$identity_map[$id] = Object::findOne($id);
             if (is_object(static::$identity_map[$id])) {
                 static::$ids_for_class_name[static::$identity_map[$id]->object_class] = $id;
                 Yii::$app->cache->set('Object: ' . $id, static::$identity_map[$id], 86400, new TagDependency(['tags' => [\devgroup\TagDependencyHelper\ActiveRecordHelper::getObjectTag(static::className(), $id)]]));
             }
         }
     }
     return static::$identity_map[$id];
 }

 public function up()
 {
     $objects = \app\models\Object::find()->asArray()->all();
     foreach ($objects as $object) {
         if ($object['name'] == 'Submission') {
             continue;
         } else {
             if ($object['name'] == 'Form') {
                 $submissionObject = \app\models\Object::findOne(['name' => 'Submission']);
                 $this->addColumn($object['eav_table_name'], 'property_group_id', 'INT UNSIGNED NOT NULL AFTER `object_model_id`');
                 $this->addColumn($submissionObject->eav_table_name, 'property_group_id', 'INT UNSIGNED NOT NULL AFTER `object_model_id`');
                 $groups = \app\models\PropertyGroup::find()->where(['object_id' => $object['id']])->asArray()->all();
                 foreach ($groups as $group) {
                     $forms = \app\models\ObjectPropertyGroup::find()->select('object_model_id')->where(['property_group_id' => $group['id']])->asArray()->all();
                     $formIDs = [];
                     foreach ($forms as $formID) {
                         if (!in_array($formID['object_model_id'], $formIDs)) {
                             $formIDs[] = $formID['object_model_id'];
                         }
                     }
                     $submissionIDs = \app\models\Submission::find()->select('id')->where(['form_id' => $formIDs])->asArray()->all();
                     $subIDs = [];
                     foreach ($submissionIDs as $submission) {
                         $subIDs[] = $submission['id'];
                     }
                     $properties = \app\models\Property::find()->select(['id', 'key'])->where(['property_group_id' => $group['id'], 'is_eav' => 1])->asArray()->all();
                     foreach ($properties as $property) {
                         $this->update($submissionObject->eav_table_name, ['property_group_id' => $group['id']], ['key' => $property['key']]);
                     }
                 }
             } else {
                 $this->addColumn($object['eav_table_name'], 'property_group_id', 'INT UNSIGNED NOT NULL AFTER `object_model_id`');
                 $groups = \app\models\PropertyGroup::find()->where(['object_id' => $object['id']])->asArray()->all();
                 foreach ($groups as $group) {
                     $properties = \app\models\Property::find()->select(['id', 'key'])->where(['property_group_id' => $group['id'], 'is_eav' => 1])->asArray()->all();
                     foreach ($properties as $property) {
                         $this->update($object['eav_table_name'], ['property_group_id' => $group['id']], ['key' => $property['key']]);
                     }
                 }
             }
         }
     }
 }

 /**
  * Finds the Object model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param integer $id
  * @return Object the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = Object::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }

 /**
  * Invalidate cache for object
  */
 private function invalidateObjectCache()
 {
     $className = null;
     if (!isset(static::$objectClassMap[static::$tableName])) {
         /** @var Object $object */
         if (null !== ($object = Object::findOne(['eav_table_name' => static::$tableName]))) {
             static::$objectClassMap[static::$tableName] = $object->object_class;
             $className = static::$objectClassMap[static::$tableName];
         }
     } else {
         $className = static::$objectClassMap[static::$tableName];
     }
     if (null !== $className) {
         \yii\caching\TagDependency::invalidate(\Yii::$app->cache, [ActiveRecordHelper::getObjectTag($className, $this->object_model_id)]);
     }
 }

 /**
  * Finds the Object model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param string $id
  * @return Monitor the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModelobject($id)
 {
     if (($modelobject = Object::findOne($id)) !== null) {
         return $modelobject;
     } else {
         throw new NotFoundHttpException('Заведение не найдено.');
     }
 }