update 优化表单绑定逻辑，移除流程定义配置表单

gssong

2024-04-06 1da98c8a8207dd062e433242e1567b6418c6ed81

 ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/utils/ModelUtils.java

@@ -156,10 +156,47 @@
        if (!(targetFlowElement instanceof UserTask) && !subtask) {
            throw new ServerException("开始节点后第一个节点必须是用户任务！");
        }

        //开始节点后第一个节点申请人节点
        if ((targetFlowElement instanceof UserTask) && !subtask) {
            UserTask userTask = (UserTask) targetFlowElement;
            if (StringUtils.isBlank(userTask.getFormKey())) {
                throw new ServerException("申请人节点必须选择表单！");
            }
        }
        List<EndEvent> endEventList = flowElements.stream().filter(EndEvent.class::isInstance).map(EndEvent.class::cast).collect(Collectors.toList());
        if (CollUtil.isEmpty(endEventList)) {
            throw new ServerException(subtask ? "子流程必须存在结束节点！" : "必须存在结束节点！");
        }
    }

    /**
     * 获取流程全部用户节点
     *
     * @param processDefinitionId 流程定义id
     */
    public static List<UserTask> getUserTaskFlowElements(String processDefinitionId) {
        BpmnModel bpmnModel = PROCESS_ENGINE.getRepositoryService().getBpmnModel(processDefinitionId);
        List<UserTask> list = new ArrayList<>();
        List<Process> processes = bpmnModel.getProcesses();
        Collection<FlowElement> flowElements = processes.get(0).getFlowElements();
        buildUserTaskFlowElements(flowElements, list);
        return list;
    }

    /**
     * 递归获取所有节点
     *
     * @param flowElements 节点信息
     * @param list         集合
     */
    private static void buildUserTaskFlowElements(Collection<FlowElement> flowElements, List<UserTask> list) {
        for (FlowElement flowElement : flowElements) {
            if (flowElement instanceof SubProcess) {
                Collection<FlowElement> subFlowElements = ((SubProcess) flowElement).getFlowElements();
                buildUserTaskFlowElements(subFlowElements, list);
            } else if (flowElement instanceof UserTask) {
                list.add((UserTask) flowElement);
            }
        }
    }

@@ -233,4 +270,20 @@
        FlowNode flowNode = (FlowNode) bpmnModel.getFlowElement(taskDefinitionKey);
        return flowNode instanceof UserTask;
    }

    /**
     * 获取申请人节点
     *
     * @param processDefinitionId 流程定义id
     * @return 结果
     */
    public static UserTask getApplyUserTask(String processDefinitionId) {
        BpmnModel bpmnModel = PROCESS_ENGINE.getRepositoryService().getBpmnModel(processDefinitionId);
        Collection<FlowElement> flowElements = bpmnModel.getMainProcess().getFlowElements();
        List<StartEvent> startEventList = flowElements.stream().filter(StartEvent.class::isInstance).map(StartEvent.class::cast).collect(Collectors.toList());
        StartEvent startEvent = startEventList.get(0);
        List<SequenceFlow> outgoingFlows = startEvent.getOutgoingFlows();
        FlowElement targetFlowElement = outgoingFlows.get(0).getTargetFlowElement();
        return (UserTask) targetFlowElement;
    }
}