dates; } /** * Determine if the model instance has been soft-deleted. * * @return bool */ public function trashed() { return $this->{$this->getDeletedAtColumn()} == static::STATUS_DELETED; } /** * Perform the actual delete query on this model instance. * * @return void */ protected function runSoftDelete() { $query = $this->newQueryWithoutScopes()->where($this->getKeyName(), $this->getKey()); $this->{$this->getDeletedAtColumn()} = $this->getDeletedColumnValue(); $query->update([$this->getDeletedAtColumn() => $this->getDeletedColumnValue()]); } /** * Restore a soft-deleted model instance. * * @return bool|null */ public function restore() { // If the restoring event does not return false, we will proceed with this // restore operation. Otherwise, we bail out so the developer will stop // the restore totally. We will clear the deleted timestamp and save. if ($this->fireModelEvent('restoring') === false) { return false; } $this->{$this->getDeletedAtColumn()} = static::STATUS_ENABLED; // Once we have saved the model, we will fire the "restored" event so this // developer will do anything they need to after a restore operation is // totally finished. Then we will return the result of the save call. $this->exists = true; $result = $this->save(); $this->fireModelEvent('restored', false); return $result; } /** * 获取删除字段值 * @return string|int */ public function getDeletedColumnValue() { return self::STATUS_DELETED; } /** * Get the fully qualified "deleted at" column. * * @return string */ public function getQualifiedDeletedAtColumn() { $alias = empty($this->getAliasName()) ? $this->getTable() : $this->getAliasName(); return $alias . '.' . $this->getDeletedAtColumn(); } }