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Task Scheduler

开发者 Michael Uno
miunosoft
更新时间 2021年2月24日 14:25
捐献地址: 去捐款
PHP版本: 3.7 及以上
WordPress版本: 5.6.2
版权: GPLv2 or later
版权网址: 版权信息

标签

scheduler email tool event cron utility system background backend automation task delete posts routine

下载

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详情介绍:

Handle Massive Number of Actions Do you have specific tasks which need to run at your desired time? Do you use WordPress as a proxy to generate data from external sources? As WordPress has evolved into a phase of application platforms, a more enhanced task management system needed to emerge. Currently, with WP Cron, if you register a large number of actions, for example, 1000 tasks to run immediately and one of them stalls, it affects all the other actions preventing them from being loaded at the scheduled time. Also, the scheduled tasks won't be triggered if there is no visitor on the site. The goal of this plugin is to resolve such issues and become the perfect solution for WordPress powered back-end application servers to provide full-brown API functionalities. What it does Built-in Actions Custom Action Modules Extensible This is designed to be fully extensible and developers can add custom modules including actions and occurrence types.

安装:

Install
  1. Upload task-scheduler.php and other files compressed in the zip folder to the /wp-content/plugins/ directory.,
  2. Activate the plugin through the Plugins menu in WordPress.
How to Use
  1. Define a Task via Dashboard -> Task Scheduler -> Add New Task
  2. In the task listing table, toggle on and off.

屏幕截图:

  • ***Task Listing Table***
  • ***Wizard***
  • ***Settings***

其他记录:

Create a Custom Action You can run your custom action with Task Scheduler and run it at scheduled times, once a day, with a fixed interval, or whatever you set with the plugin. Place the code that includes the module in your plugin or functions.php of the activated theme. 1. Decide your action slug which also serves as a WordPress filter hook. Say, you pick my_custom_action as an action name. 2. Use the add_filter() WordPress core function to hook into the action. ` /* * Called when the Task Scheduler plugin gets loaded. / function doMyCustomAction( $isExitCode, $oRoutine ) { / * Do you stuff here. */ TaskScheduler_Debug::log( $oRoutine->getMeta() ); return 1;} / * Set the 'my_custom_action' custom action slug in the Select Action screen * via Dashboard -> Task Scheduler -> Add New Task. / add_filter( 'my_custom_action', 'doMyCustomAction', 10, 2 ); Please note that we useadd_filter()notadd_action()in order to return an exit code. Return1if the task completes and0when there is a problem. You can pass any value exceptnull`. 3. Go to Dashboard -> Task Scheduler -> Add New Task. Proceed with the wizard and when you get the Select Action screen after setting up the occurrence, type my_custom_action*, the one you defined in the above step. The action slug set in the field will be triggered at the scheduled time. It will be easier for you to modify an existent code. You can download the zip file and install it on your site. Create a Custom Action Module If you want your action to be listed in the Select Action screen, you need to create an action module. To create an action module, you need to define a class by extending a base class that Task Scheduler prepares for you. 1. Define your custom action module class by extending the TaskScheduler_Action_Base class. ` class TaskScheduler_SampleActionModule extends TaskScheduler_Action_Base { /* * The user constructor. * * This method is automatically called at the end of the class constructor. / public function construct() {} /* * Returns the readable label of this action. * * This will be called when displaying the action in an pull-down select option, task listing table, or notification email message. / public function getLabel( $sLabel ) { return __( 'Sample Action Module', 'task-scheduler-sample-action-module' ); } /* * Returns the description of the module. / public function getDescription( $sDescription ) { return __( 'This is a sample action module.', 'task-scheduler-sample-action-module' ); } /* * Defines the behaviour of the task action. * / public function doAction( $isExitCode, $oRoutine ) { /* * Write your own code here! Delete the below log method. * * Good luck! / TaskScheduler_Debug::log( $oRoutine->getMeta() ); // Exit code. return 1; } } In thedoAction()method of the above class, define the behaviour of your action what it does. The second parameter receives a routine object. The object has a public method namedgetMeta()which returns the associated arguments. **2.** Use thetask_scheduler_action_after_loading_pluginaction hook to register your action module. To register your action module, just instantiate the class you defined. function loadTaskSchedulerSampleActionModule() { // Register a custom action module. include( dirname( FILE ) . '/module/TaskScheduler_SampleActionModule.php' ); new TaskScheduler_SampleActionModule; } add_action( 'task_scheduler_action_after_loading_plugin', 'loadTaskSchedulerSampleActionModule' ); **3.** Go to **Dashboard** -> **Task Scheduler** -> **Add New Task**. Proceed the wizard and when you get the **Select Action** screen, choose your action. You can set your custom arguments in the **Argument (optional)** field if necessary. The set values will be stored in the argument element of the array returned by thegetMeta()public method of the routine object. It will be easier for you to modify an existent module. Get an example action module which comes as a plugin from [this page](https://github.com/michaeluno/task-scheduler-sample-action-module). Download and activate it on your test site. Then modify the code, especially thedoAction()` method which defines the behavior of the action. Create Threads When your routine is too heavy and gets hung often, you can create threads that performs sub-routines of the main routine. 1. Define your thread class the TaskScheduler_Action_Base class. ` class TaskScheduler_SampleActionModule_Thread extends TaskScheduler_Action_Base { /* * Returns the readable label of this action. * * This will be called when displaying the action in an pull-down select option, task listing table, or notification email message. / public function getLabel( $sLabel ) { return __( 'Run a PHP Script', 'task-scheduler' ); } /* * Defines the behavior of the task action. / public function doAction( $isExitCode, $oThread ) { // Do your stuff $_aThreadArguments = $oThread->getMeta(); TaskScheduler_Debug::log( $_aThreadArguments ); return 1; } } **2.** Instantiate the thread class. In theconstruct()method of your action module class introduced above that calls threads, instantiate the thread class by passing a custom action name. Here we passtask_scheduler_my_threadas an example. class TaskScheduler_SampleActionModule extends TaskScheduler_Action_Base { public function construct() { new TaskScheduler_SampleActionModule_Thread( 'task_scheduler_my_thread' ); } ... } **3.** Create a thread. In thedoAction()method of your action module class, create a thread with thecreateThread()method. The parameters are:createThread( $sThreadActionHookName, $oRoutine, array $aThreadOptions, array $aSystemTaxonomyTerms=array(), $bAllowDuplicate )1.$sThreadActionHookName- (string, required) the slug that serves as an action hook name 2.$oRoutine- (object, required) the routine object that is passed to the second parameter ofdoAction()method. 3. `$aThreadOptions`- (array, required) an associative array holding arguments to pass to the thread. 4.`$aSystemTaxonomyTerms`- (array, optional) an array holding taxonomy terms for the system the plugin provides. Default:`array(). 5. $bAllowDuplicate - (boolean, optional) whether to allow threads to be created with same arguments. Default: false. Make sure the return value is null so that the routine will not close. Here we assume the $_aData variable holds lots of items so it must be processed separately by threads. ` class TaskScheduler_SampleActionModule extends TaskScheduler_Action_Base { ... public function doAction( $isExitCode, $oRoutine ) { // Assuming this is big. $_aData = array( array( 'a', 'b', 'c' ), array( 'd', 'e', 'f', 'g' ), array( 'h', 'i' ), ); foreach( $_aData as $_aDatum ) { $_aArguments = array( 'datum' => $_aDatum, 'foo' => 'bar', ); $this->createThread( 'task_scheduler_my_thread', $oRoutine, $_aArguments ); } // Do not close this routine by returning 'null'. When all the threads are done, this routine will be automatically closed. return null; } ... } **4.** Process Passed Data from a Routine to a Thread. In the thread class, retrieve the passed data. class TaskScheduler_SampleActionModule_Thread extends TaskScheduler_Action_Base { ... /* * Defines the behavior of the task action. / public function doAction( $isExitCode, $oThread ) { // Do your stuff $_aArguments = $oThread->getMeta(); $_sFoo = $_aArguments[ 'foo' ]; // is 'bar' $_aDatum = $_aArguments[ 'datum' ]; // is either array( 'a', 'b', 'c' ), array( 'd', 'e', 'f', 'g' ), or array( 'h', 'i' ) TaskScheduler_Debug::log( $_aArguments ); return 1; } } The entire code will look like this. Action Module Class: class TaskScheduler_SampleActionModule extends TaskScheduler_Action_Base { /* * The user constructor. * * This method is automatically called at the end of the class constructor. / public function construct() { new TaskScheduler_SampleActionModule_Thread( 'task_scheduler_my_thread' ); } /* * Returns the readable label of this action. * * This will be called when displaying the action in an pull-down select option, task listing table, or notification email message. / public function getLabel( $sLabel ) { return __( 'Sample Action Module', 'task-scheduler-sample-action-module' ); } /* * Returns the description of the module. / public function getDescription( $sDescription ) { return __( 'This is a sample action module.', 'task-scheduler-sample-action-module' ); } public function doAction( $isExitCode, $oRoutine ) { // Assuming this is big. $_aData = array( array( 'a', 'b', 'c' ), array( 'd', 'e', 'f', 'g' ), array( 'h', 'i' ), ); foreach( $_aData as $_aDatum ) { $_aArguments = array( 'datum' => $_aDatum, 'foo' => 'bar', ); $this->createThread( 'task_scheduler_my_thread', $oRoutine, $_aArguments ); } // Do not close this routine by returning 'null'. When all the threads are done, this routine will be automatically closed. return null; } } Thread Class: class TaskScheduler_SampleActionModule_Thread extends TaskScheduler_Action_Base { /* * Returns the readable label of this action. * * This will be called when displaying the action in an pull-down select option, task listing table, or notification email message. / public function getLabel( $sLabel ) { return __( 'Run a PHP Script', 'task-scheduler' ); } /* * Defines the behavior of the task action. / public function doAction( $isExitCode, $oThread ) { // Do your stuff $_aArguments = $oThread->getMeta(); $_sFoo = $_aArguments[ 'foo' ]; // is `bar' $_aDatum = $_aArguments[ 'datum' ]; // is either array( 'a', 'b', 'c' ), array( 'd', 'e', 'f', 'g' ), or array( 'h', 'i' ) TaskScheduler_Debug::log( $_aArguments ); return 1; } } Don't forget to instantiate the action module class.new TaskScheduler_SampleActionModule;` Terminologies

更新日志:

1.5.4 - 2021/02/24