2014-06-02 Created By BaoXinjianweb
1、摘要post
OAF和Form Builder同樣,也須要主從塊的管理,應爲Form只須要創建一個relationship,相對簡單測試
在OAF中實現主從Master-Detail聯動的實現,更多的是經過代碼去實現ui
好比在主塊中添加一個event,在CO中去觸發從塊的查詢語句,從而實現聯動this
我的以爲其核心思想就是,在Master Section中換行時,觸發一個Event,在CO中一旦獲取這個Event後,調用AM中的方法對Detail Section的VO進行查詢初始化spa
2、案例code
需求:當主塊supplier選擇後,系統自動關聯子塊Site,顯示這個supplier下的全部sitesorm
1. 創建Header Region -> Supplier Tableblog
2. 創建Detail Region -> Supplier Sites Tabletoken
3. 在Header中創建Singel Section, 設定Action Type爲FireAction, Event爲SupplierSelect
4. 新增CO,在ProcessFormRequest中抓取Event SupplierSelect,調用AM的方法
5. 在AM中獲取Supplier_Id, 將Supplier_Id賦值與VO中的具體SQL
6. VO中執行SQL
7. 查看結果
(1). 查詢Supplier Header,選中第一條Record
(2). 選中第一條後,在Detail中顯示全部Site Records
3、案例實現
Step1. 創建Structure
Step2. 新增CO,在ProcessFormRequest中抓取Event SupplierSelect,調用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中獲取Supplier_Id, 將Supplier_Id賦值與VO中的具體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中執行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 }
4、案例測試
Test. 查看結果
Test1. 查詢Supplier Header,選中第一條Record
Test2. 選中第一條後,在Detail中顯示全部Site Records
Thanks and Regards