标签:des c style class blog code
2014-06-02 BaoXinjian
一、摘要
OAF和Form Builder一样,也需要主从块的管理,应为Form只需要建立一个relationship,相对简单
在OAF中实现主从Master-Detail联动的实现,更多的是通过代码去实现
比如在主块中添加一个event,在CO中去触发从块的查询语句,从而实现
二、案例
需求:当主块supplier选择后,系统自动关联子块Site,显示这个supplier下的所有sites
1. 建立Header Region -> Supplier Table
2. 建立Detail Region -> Supplier Sites Table
3. 在Header中建立Singel Section, 设定Action Type为FireAction, Event为SupplierSelect
4. 新增CO,在ProcessFormRequest中抓取Event SupplierSelect,调用AM的方法
5. 在AM中获取Supplier_Id, 将Supplier_Id赋值与VO中的具体SQL
6. VO中执行SQL
7. 查看结果
(1). 查询Supplier Header,选中第一条Record
(2). 选中第一条后,在Detail中显示所有Site Records
三、案例实现
Step1. 建立Structure
Step2. 新增CO,在ProcessFormRequest中抓取Event SupplierSelect,调用AM的方法
1 public void processFormRequest(OAPageContext pageContext, OAWebBean webBean) { 2 3 super.processFormRequest(pageContext, webBean); 4 5 OAApplicationModule am = (OAApplicationModule)pageContext.getApplicationModule(webBean); 6 7 String event = pageContext.getParameter("event"); 8 9 if ("supplierSelect".equals(event)){ 10 11 am.invokeMethod("handleSupplierSelectionEvent"); 12 13 } 14 15 }
Step3. 在AM中获取Supplier_Id, 将Supplier_Id赋值与VO中的具体SQL
1 public void handleSupplierSelectionEvent(){ 2 3 OADBTransaction txn = getOADBTransaction(); 4 5 String detailTableText = null; 6 7 String supplierId = null; 8 9 OAViewObject vo = (OAViewObject)findViewObject("SupplierVO1"); 10 11 Row masterRow = vo.getFirstFilteredRow ("SelectFlag", "Y"); 12 13 if (masterRow != null){ 14 15 vo.setCurrentRow(masterRow); 16 17 supplierId = String.valueOf(masterRow.getAttribute("SupplierId")); 18 19 MessageToken[] tokens = { new MessageToken("SUPPLIER_NAME", null)}; 20 21 detailTableText = txn.getMessage("AK", "FWK_TBX_SITES_FOR_SUPPLIER", tokens); 22 23 } 24 25 else{ 26 27 detailTableText = txn.getMessage("AK", "FWK_TBX_SUPPLIER_SITES", null); 28 29 } 30 31 SupplierSitesVOImpl voSites = this.getSupplierSitesVO1(); 32 33 if (voSites == null){ 34 35 MessageToken[] errTokens = { new MessageToken("OBJECT_NAME","SupplierSitesVO1")}; 36 37 throw new OAException("AK", "FWK_TBX_OBJECT_NOT_FOUND", errTokens); 38 39 } 40 41 voSites.initQuery(supplierId); 42 43 }
Step4. VO中执行SQL
1 public void initQuery (String SupplierId) { 2 3 if (SupplierId != null){ 4 5 setWhereClause("SUPPLIER_ID = :1"); 6 7 setWhereClauseParams(null); // Always reset 8 9 setWhereClauseParam(0, SupplierId); 10 11 executeQuery(); 12 13 } 14 15 }
四、案例测试
Test. 查看结果
Test1. 查询Supplier Header,选中第一条Record
Test2. 选中第一条后,在Detail中显示所有Site Records
OAF_资料主从关系Master-Detail联动的实现(案例),布布扣,bubuko.com
OAF_资料主从关系Master-Detail联动的实现(案例)
标签:des c style class blog code
原文地址:http://www.cnblogs.com/eastsea/p/3764025.html