基于氚云平台的应用开发学习(三)
作者：互联网
一款基于钉钉的企业级应用开发平台，提供从表单、流程、报表等一系列可视化工具。实现企业一站式数据化管理平台。
这篇将继续围绕上篇所说的第二种方法，记录说明一下自己遇到的问题以及解决方法。
一、创建或更新包含子表的表单
二、流程事件变化后执行某些逻辑
三、发送消息提醒
一、创建或更新包含子表的表单
1、首先介绍关于在后端创建包含子表的表单：
1 //根据ID查询当前表单数据
2 string sql1 = "select Warehouse1 as Warehouse1,MyProject as MyProject,Class1 as Class1,People as People,Dept as Dept," +
3 "Principal as Principal from I_D000399SgProductionAcquisition where Objectid = '" + ObjectId + "'";
4 System.Data.DataTable table1 = this.Engine.Query.QueryTable(sql1, null);
5 int rowCount1 = table1.Rows.Count;
6
7 //根据ID查询当前表单子表数据
8 string sql2 = "select ControlCatalogue as ControlCatalogue,No as No,MaterialName as MaterialName,Type as Type,Unit1 as Unit1 " +
9 "from I_D000399SgBugApplyDetails where parentobjectid = '" + ObjectId + "'";
10 System.Data.DataTable table2 = this.Engine.Query.QueryTable(sql2, null);
11 int rowCount2 = table2.Rows.Count;
12
13 List < H3.DataModel.BizObject > _list = new List<H3.DataModel.BizObject>();
14 for(int i = 0;i < rowCount2; i++) {
15 //创建子表对象
16 H3.DataModel.BizObject childBo = new H3.DataModel.BizObject(this.Request.Engine, this.Request.Engine.BizObjectManager.GetPublishedSchema("D000399SqOutbound01"), this.Request.UserContext.UserId);
17 childBo["ControlCatalogue"] = table2.Rows[i]["ControlCatalogue"].ToString();
18 childBo["No"] = table2.Rows[i]["No"].ToString();
19 childBo["MaterialName"] = table2.Rows[i]["MaterialName"].ToString();
20 childBo["Type"] = table2.Rows[i]["Type"].ToString();
21 childBo["Unit1"] = table2.Rows[i]["Unit1"].ToString();
22 childBo.Create();
23 _list.Add(childBo);
24 }
25
26 //创建主表对象
27 H3.DataModel.BizObject bo = new H3.DataModel.BizObject(this.Engine, this.Engine.BizObjectManager.GetPublishedSchema("D000399SqOutbound"), this.Request.UserContext.UserId);
28 bo["WDate"] = DateTime.Today.ToString("yyyy-MM-dd");
29 bo["YearMonth"] = DateTime.Today.ToString("yyyyMM");
30 bo["Title"] = "审核批量，生产领用出库";
31 bo["Acquisition"] = ObjectId;
32 bo["No"] = No;
33 bo["Money"] = AllMoney;
34 for(int i = 0;i < rowCount1; i++) {
35 bo["Warehouse1"] = table1.Rows[i]["Warehouse1"].ToString();
36 bo["MyProject"] = table1.Rows[i]["MyProject"].ToString();
37 bo["Class"] = table1.Rows[i]["Class1"].ToString();
38 bo["People"] = table1.Rows[i]["People"].ToString();
39 bo["Dept"] = table1.Rows[i]["Dept"].ToString();
40 bo["Principal"] = table1.Rows[i]["Principal"].ToString();
41 }
42 bo["D000399SqOutbound01"] = _list.ToArray();
43 bo.Status = H3.DataModel.BizObjectStatus.Effective;
44 bo.Create();
上述代码是根据ID，查询某表单以及其子表数据，再将数据对应赋值给创建的表单以及创建表单的子表，这里表单或者其子表的ID都是系统自己随机生成，同时可以设置创建表单的状态，需要注意的是这里创建后的表单继续会触发它对应的业务规则。
2、再介绍关于在后端更新包含子表的表单：
1 //查询当前表单子表中需要冲减的数量
2 string sql1 = "select ControlCatalogue as ControlCatalogue,Num3 as Num3 from I_D000399SgBuyDetails" +
3 " where parentobjectId = '" + BuyApply + "' and Num3 != 0";
4 System.Data.DataTable table1 = this.Engine.Query.QueryTable(sql2, null);
5 int rowCount1 = table1.Rows.Count;
6
7 H3.Data.Filter.Filter filter = new H3.Data.Filter.Filter();
8 H3.Data.Filter.And andMatcher = new H3.Data.Filter.And();
9
10 andMatcher.Add(new H3.Data.Filter.ItemMatcher("ObjectId", H3.Data.ComparisonOperatorType.Equal, UseAllPlan));
11 filter.Matcher = andMatcher;
12 H3.DataModel.BizObjectSchema accountSchema = this.Request.Engine.BizObjectManager.GetPublishedSchema("D000399SgUseAllPlan");
13 H3.DataModel.BizObject[] customers = H3.DataModel.BizObject.GetList(this.Request.Engine, this.Request.UserContext.UserId,
14 accountSchema, H3.DataModel.GetListScopeType.GlobalAll, filter);
15 if(customers != null && customers.Length > 0)
16 {
17 H3.DataModel.BizObject[] details = (H3.DataModel.BizObject[]) customers[0]["D000399SgUseAllDetails"];
18 List < H3.DataModel.BizObject > boList = new List<H3.DataModel.BizObject>();
19 //保存原子表记录，先获取子表内容，循环将其原有数据添加到boList
20 if(details != null)
21 {
22 foreach(H3.DataModel.BizObject dt in details)
23 {
24 for(int i = 0;i < rowCount1; i++) {
25 string ControlCatalogue = table1.Rows[i]["ControlCatalogue"].ToString();
26 string Num3 = table1.Rows[i]["Num3"].ToString();
27
28 if(string.Equals(dt["ControlCatalogue"], ControlCatalogue))
29 {
30 int temp1 = Convert.ToInt32(dt["Num4"]) - Convert.ToInt32(Num3);
31 dt["Num4"] = Convert.ToString(temp1);
32 int temp2 = Convert.ToInt32(dt["Num5"]) + Convert.ToInt32(Num3);
33 dt["Num5"] = Convert.ToString(temp2);
34 }
35 }
36 boList.Add(dt);
37 }
38 }
39 H3.DataModel.BizObjectSchema schema = this.Request.Engine.BizObjectManager.GetPublishedSchema("D000399SgUseAllPlan");
40 H3.DataModel.BizObject schemaObject = new H3.DataModel.BizObject(this.Request.Engine, schema, this.Request.UserContext.UserId);
41 schemaObject.ObjectId = UseAllPlan; //更新的表单ID为UseAllPlan
42 schemaObject.Load();
43 schemaObject["D000399SgUseAllDetails"] = boList.ToArray();
44 schemaObject.Update();
45 }
上述代码是根据ID，更新目标表单的子表数据，需要注意的是这里更新后的表单同样会触发它对应的业务规则，如果不想触发业务规则，也可采用sql语句更新的方式，如下所示。
1 //将'项目信息'中项目成员赋值给‘我的项目’的项目成员 2 string sql1 = "update I_D000399SgProjectMy set I_D000399SgProjectMy.Members = (select Members from I_D000399SgProject "+ 3 "where I_D000399SgProjectMy.Project = I_D000399SgProject.Objectid)"; 4 this.Engine.Query.QueryTable(sql1, null);
二、流程事件变化后执行某些逻辑
当一个表单生效或作废后，若有业务规则首先会执行业务规则，通常有更新或新增等操作。然后再执行流程变化后事件。前提是当前表单已经开启了表单流程。代码如下：
1 protected override void OnWorkflowInstanceStateChanged(H3.Workflow.Instance.WorkflowInstanceState oldState, H3.Workflow.Instance.WorkflowInstanceState newState)
2 {
3 //流程审批结束,业务规则执行。还有个审批流程结束（finished状态下直接删除），就直接删除也会触发业务规则执行。在submit里面处理
4 if(oldState == H3.Workflow.Instance.WorkflowInstanceState.Running && newState == H3.Workflow.Instance.WorkflowInstanceState.Finished)
5 {
6 DoAfterPass1(this.Request.BizObject.ObjectId);
7 }
8 //流程审批结束后，重新激活，业务规则会执行。还有个审批流程结束（finished状态下直接删除），就直接删除也会触发业务规则执行。在submit里面处理
9 if(oldState == H3.Workflow.Instance.WorkflowInstanceState.Finished && newState == H3.Workflow.Instance.WorkflowInstanceState.Running)
10 {
11 DoAfterPass2(this.Request.BizObject.ObjectId);
12 }
13 base.OnWorkflowInstanceStateChanged(oldState, newState);
14 }
this.Request.BizObject.ObjectId; //当前表单的ID
三、发送消息提醒
1 H3.Task.UserTask task = new H3.Task.UserTask(); 2 task.ObjectId = Guid.NewGuid().ToString(); 3 task.Sender = this.Request.UserContext.UserId; //任务的发送人ID 4 task.UserId = this.Request.UserContext.UserId; //任务的接收人ID 5 task.AppCode = ""; //应用的Code 6 task.TaskType = H3.Task.TaskType.Reminder; //任务类型为提醒 7 task.SchemaCode = ""; //表单的Code 8 task.TargetType = LinkTargetType.BizObject; //链接类型 9 task.TargetId = ""; //链接表单对象的ID 10 task.TargetName = ""; //链接表单对象的名称 11 task.Name = "这是测试提醒标题！"; //提醒标题 12 task.Summary = "这是测试提醒内容！"; //提醒的内容 13 task.AlertTime = DateTime.Now; // 提醒时间 14 task.ReminderType = H3.Task.ReminderType.Once; //提醒的类型 15 task.StartTime = DateTime.Now; //开始时间 16 task.TaskState = H3.Task.TaskState.Unfinished; //任务的状态 17 task.AlertState = H3.Task.AlertState.Waiting; //提醒的状态 18 this.Request.Engine.TaskManager.AddTask(task);//添加任务
至此是对氚云部分功能的一个简单介绍，后续会继续说明其它部分功能所遇到的问题以及解决方法。
如有疏漏错误之处，还请不吝赐教！
标签：基于,task,BizObject,H3,平台,表单,学习,ToString,DataModel 来源： https://blog.51cto.com/jalony/2875904