diff options
Diffstat (limited to 'modules/gallery/helpers/task.php')
-rw-r--r-- | modules/gallery/helpers/task.php | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/modules/gallery/helpers/task.php b/modules/gallery/helpers/task.php new file mode 100644 index 00000000..a8a004ab --- /dev/null +++ b/modules/gallery/helpers/task.php @@ -0,0 +1,83 @@ +<?php defined("SYSPATH") or die("No direct script access."); +/** + * Gallery - a web based photo album viewer and editor + * Copyright (C) 2000-2009 Bharat Mediratta + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. + */ +class task_Core { + /** + * Get all available tasks + */ + static function get_definitions() { + $tasks = array(); + foreach (module::active() as $module) { + $class_name = "{$module->name}_task"; + if (method_exists($class_name, "available_tasks")) { + foreach (call_user_func(array($class_name, "available_tasks")) as $task) { + $tasks[$task->callback] = $task; + } + } + } + + return $tasks; + } + + static function create($task_def, $context) { + $task = ORM::factory("task"); + $task->callback = $task_def->callback; + $task->name = $task_def->name; + $task->percent_complete = 0; + $task->status = ""; + $task->state = "started"; + $task->owner_id = user::active()->id; + $task->context = serialize($context); + $task->save(); + + return $task; + } + + static function cancel($task_id) { + $task = ORM::factory("task", $task_id); + if (!$task->loaded) { + throw new Exception("@todo MISSING_TASK"); + } + $task->done = 1; + $task->state = "cancelled"; + $task->save(); + + return $task; + } + + static function remove($task_id) { + $task = ORM::factory("task", $task_id); + if ($task->loaded) { + $task->delete(); + } + } + + static function run($task_id) { + $task = ORM::factory("task", $task_id); + if (!$task->loaded) { + throw new Exception("@todo MISSING_TASK"); + } + + $task->state = "running"; + call_user_func_array($task->callback, array(&$task)); + $task->save(); + + return $task; + } +}
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