设计一个合理的PHP工作流系统需要考虑多个方面,包括流程的定义、执行、监控和管理。以下是一个基本的设计框架,帮助你构建一个高效的工作流系统:
以下是一个简单的PHP工作流调度器的示例代码片段:
<?php
class WorkflowScheduler {
private $workflow;
private $taskManager;
public function __construct($workflow, $taskManager) {
$this->workflow = $workflow;
$this->taskManager = $taskManager;
}
public function schedule($startNode) {
$currentTask = $startNode;
while ($currentTask) {
$this->taskManager->createTask($currentTask);
$currentTask = $this->workflow->getNextTask($currentTask);
}
}
}
class Workflow {
private $nodes;
public function __construct($nodes) {
$this->nodes = $nodes;
}
public function getNextTask($currentNode) {
// 根据当前节点返回下一个任务
return $this->nodes[$currentNode]['next'];
}
}
class TaskManager {
private $tasks;
public function __construct() {
$this->tasks = [];
}
public function createTask($node) {
$taskId = uniqid();
$this->tasks[$taskId] = [
'id' => $taskId,
'node' => $node,
'status' => 'pending',
'history' => []
];
return $taskId;
}
public function updateTaskStatus($taskId, $status) {
if (isset($this->tasks[$taskId])) {
$this->tasks[$taskId]['status'] = $status;
}
}
}
// 示例使用
$workflowNodes = [
'start' => ['next' => 'task1'],
'task1' => ['next' => 'task2'],
'task2' => ['next' => 'end']
];
$workflow = new Workflow($workflowNodes);
$taskManager = new TaskManager();
$scheduler = new WorkflowScheduler($workflow, $taskManager);
$scheduler->schedule('start');
这个示例展示了如何定义一个简单的工作流调度器,包括流程定义、任务管理和任务调度。实际应用中,你可能需要根据具体需求进行更复杂的设计和实现。