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-rw-r--r--modules/gallery/helpers/task.php83
1 files changed, 83 insertions, 0 deletions
diff --git a/modules/gallery/helpers/task.php b/modules/gallery/helpers/task.php
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+<?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;
+ }
+} \ No newline at end of file