salesforce 零基础学习（六十）Wizard样式创建数据

项目中表之间关联关系特别多，比如三个表中A,B,C  C作为主表，A，B作为从表，有时候C表需要创建数据时，同时需要创建A，B两个表的数据，这种情况下，使用Wizard样式会更加友好。

以Goods__c表和Goods_Vendor__c表为例，Goods__c为主表，Goods_Vendor__c为从表。新建Goods__c记录以后同时要创建其相关的数据。

表结构关系如下：

代码：

1.GoodsHelper:封装获取goods的列表方法

 public without sharing class GoodsHelper {

     public static final String BASE_GOODS_QUERY = 'SELECT CreatedById, CreatedDate, IsDeleted,' +
                     ' Goods_Code_Unique__c, Name, GoodsPicture__c, GoodsBrand__c, GoodsCostPrice__c,' +
                     ' GoodsDescribe__c, GoodsName__c, GoodsPrice__c, GoodsProfit__c, Is_Draft__c,' +
                     ' LastModifiedById, LastModifiedDate, No__c, OwnerId, Id, RecordTypeId,' +
                     ' Status__c, SystemModstamp' +
                     ' FROM Goods__c where IsDeleted = false';
     public static final String BASE_GOODS_COUNT_QUERY = 'SELECT count() from Goods__c where IsDeleted = false';
     public static MyPaginationEnhancement getGoodsList(String goodsName,String goodsBrand,MyPaginationEnhancement pagination) {
         String queryCondition= '';
         String orderBy ='';
         if(goodsName != null) {
             queryCondition += ' and GoodsName__c like %\'' + goodsName + '%\'';
         }
         if(goodsBrand != null) {
             queryCondition += ' and GoodsBrand__c = :goodsBrand';
         }
         orderBy = ' order by createddate';

         pagination.getQueryResult(BASE_GOODS_COUNT_QUERY,BASE_GOODS_QUERY,queryCondition,null,orderBy);
         return pagination;
     }
 }

2.GoodsListController:Goods列表Controller

 public with sharing class GoodsListController {
     public Map<String,String> parameters;

     public GoodsListController() {
         parameters=ApexPages.currentPage().getParameters();
         init();
     }

     public MyPaginationEnhancement pagination = new MyPaginationEnhancement();

     public String goodsName{get;set;}

     public String goodsBrand{get;set;}

     public void init() {
         queryByCondition();
     }

     public void queryByCondition() {
         GoodsHelper.getGoodsList(goodsName,goodsBrand,pagination);
     }

     public MyPaginationEnhancement resultPagination{
         get{
             if(pagination ==null){
                pagination =new MyPaginationEnhancement();
             }
             return pagination;
         }
         set;
     }

     public List<Goods__c> resultList{
         get{
             if(pagination==null || pagination.resultList==null){
                return new List<Goods__c>();
             }
             return pagination.resultList;
         }
         set;
     }

     public PageReference newGoods() {
         return Page.detailGoods;
     }

     public void firstPage() {
        pagination.first();
        queryByCondition();
     } 

     public void lastPage() {
        pagination.last();
        queryByCondition();
     } 

     public void previousPage() {
        pagination.previous();
        queryByCondition();
     } 

     public void nextPage() {
        pagination.next();
        queryByCondition();
     }
 }

3.GoodsListPage

 <apex:page controller="GoodsListController">
 <style>
 /*-- 分页 --*/
 .paginator {font:12px Arial, Helvetica, sans-serif; padding:10px 0; margin:0px;}
 .paginator a {padding:1px 6px;border:solid 1px #ddd;background:#fff;color:#000;text-decoration:none;margin-right:2px;}
 .paginator a:visited {padding:1px 6px;border:solid 1px #ddd;background:#fff;text-decoration:none;}
 .paginator .current {padding:1px 6px; font-weight:bold; color:#f0ab00; font-size:12px; border:none;}
 .paginator a:hover {color:#fff; background:#ffa501; border-color:#ffa501; text-decoration:none;}

 </style>

     <apex:form >
         <apex:commandButton value="新建商品" action="{!newGoods}"/>
         <apex:outputPanel layout="block">
             <apex:outputPanel layout="block">
                 <apex:outputPanel layout="block">
                     <apex:outputPanel layout="block" id="goodsList">
                         <apex:dataTable align="center" value="{!resultList}" var="goods">
                             <apex:column style="width:180px;">
                                 <apex:facet name="header">{!$ObjectType.Goods__c.fields.GoodsName__c.label}</apex:facet>
                                 <apex:outputText value="{!goods.GoodsName__c}" />
                             </apex:column>
                             <apex:column style="width:225px;">
                                 <apex:facet name="header">{!$ObjectType.Goods__c.fields.GoodsPrice__c.label}</apex:facet>
                                 <apex:outputText value="{!goods.GoodsPrice__c}" />
                             </apex:column>
                             <apex:column style="width:225px;">
                                 <apex:facet name="header">{!$ObjectType.Goods__c.fields.GoodsCostPrice__c.label}</apex:facet>
                                 <apex:outputText value="{!goods.GoodsCostPrice__c}" />
                             </apex:column>
                             <apex:column style="width:500px;">
                                 <apex:facet name="header">操作</apex:facet>
                                 <apex:outputLink value="/apex/detailGoods">编辑
                                     <apex:param name="goodsId" value="{!goods.Id}"/>
                                 </apex:outputLink>
                             </apex:column>
                         </apex:dataTable>

                         <apex:outputPanel layout="block" styleClass="paginator"
                             style="padding:0px;">
                             <apex:panelGrid columns="2" style="width:100%;"
                                 styleClass="az_text_table" rowClasses="paginator,paginator">
                                 <apex:outputText rendered="{!!resultPagination.hasRecord}"
                                     value="第 0 页，共 0 页，每页 {!resultPagination.pageSize} 条" />
                                 <apex:outputText rendered="{!resultPagination.hasRecord}"
                                     value="第 {!resultPagination.pageNumber} 页，共 {!resultPagination.totalPage} 页，每页 {!resultPagination.pageSize} 条" />
                                 <apex:panelGroup >
                                     <apex:outputPanel >
                                         <apex:outputText value="首页"
                                             rendered="{!(!resultPagination.hasRecord)||(!resultPagination.hasPrevious)}"
                                             style="border: solid 1px #ddd;padding:1px 6px;background: #e8e8e9;margin-right:5px;"></apex:outputText>
                                         <apex:commandLink action="{!firstPage}"
                                             rendered="{!resultPagination.hasRecord && resultPagination.hasPrevious}"
                                             immediate="true" reRender="companyList" value="首页"
                                             style="margin-right:5px;" />
                                     </apex:outputPanel>
                                     <apex:outputPanel >
                                         <apex:outputText value="上一页"
                                             rendered="{!!resultPagination.hasRecord || (!resultPagination.hasPrevious)}"
                                             style="border: solid 1px #ddd;padding:1px 6px;background: #e8e8e9;margin-right:5px;"></apex:outputText>
                                         <apex:commandLink action="{!previousPage}"
                                             rendered="{!resultPagination.hasRecord && resultPagination.hasPrevious}"
                                             immediate="true" reRender="companyList" value="上一页"
                                             style="margin-right:5px;" />
                                     </apex:outputPanel>
                                     <apex:outputPanel >
                                         <apex:outputText value="{!resultPagination.pageNumber}"
                                             styleClass="current" />
                                     </apex:outputPanel>
                                     <apex:outputPanel >
                                         <apex:outputText value="下一页"
                                             rendered="{!!resultPagination.hasRecord || !resultPagination.hasNext}"
                                             style="border: solid 1px #ddd;padding:1px 6px;background: #e8e8e9;margin-right:5px;margin-left:5px;"></apex:outputText>
                                         <apex:commandLink action="{!nextPage}"
                                             rendered="{!resultPagination.hasRecord && resultPagination.hasNext}"
                                             immediate="true" reRender="companyList" value="下一页"
                                             style="margin-right:5px;margin-left:5px;" />
                                     </apex:outputPanel>
                                     <apex:outputPanel >
                                         <apex:outputText value="尾页"
                                             rendered="{!!resultPagination.hasRecord || !resultPagination.hasNext}"
                                             style="border: solid 1px #ddd;padding:1px 6px;background: #e8e8e9;margin-right:5px;"></apex:outputText>
                                         <apex:commandLink action="{!lastPage}"
                                             rendered="{!resultPagination.hasRecord && resultPagination.hasNext}"
                                             immediate="true" reRender="companyList" value="尾页"
                                             style="margin-right:5px;" />
                                     </apex:outputPanel>
                                 </apex:panelGroup>
                             </apex:panelGrid>
                         </apex:outputPanel>
                     </apex:outputPanel>
                 </apex:outputPanel>
             </apex:outputPanel>
         </apex:outputPanel>
     </apex:form>
 </apex:page>

4.GoodsDetailController:此类中封装了Wizard的相关方式，Wizard的相关跳转均为转发方式。

 public with sharing class GoodsDetailController {

     /*入口是新建还是更新：新建为false，更新为true*/
     public Boolean isEditView{
         get {
             if(isEditView == null) {
                 isEditView = false;
             }
             return isEditView;
         }
         set;
     }

     public GoodsDetailController() {
         init();
     }

     public GoodsDetailController(ApexPages.StandardController controller) {
         init();
     }

     public void init() {
         String goodsId = ApexPages.currentPage().getParameters().get('goodsId');
         if(goodsId != null) {
             isEditView = true;
             String queryGoods = 'SELECT Goods_Code_Unique__c, Name, GoodsBrand__c,' +
             ' GoodsCostPrice__c, GoodsDescribe__c, GoodsName__c, GoodsPrice__c,' +
             ' GoodsProfit__c, No__c,Id, Status__c' +
             ' FROM Goods__c where Id = :goodsId';
             String queryGoodsVendor = 'SELECT Goods__c, Id, Vendor_Name__c' +
             ' FROM Goods_Vendor__c where Goods__c = :goodsId';
             List<Goods__c> goodsList = Database.query(queryGoods);
             if(goodsList != null && goodsList.size() > 0) {
                 goods = goodsList.get(0);
             }
             List<Goods_Vendor__c> goodsVendorList = Database.query(queryGoodsVendor);
             if(goodsVendorList != null && goodsVendorList.size() > 0) {
                 goodsVendor = goodsVendorList.get(0);
             }
         }
     }

     public Goods__c goods{
         get{
             if(goods == null) {
                 goods = new Goods__c();
             }
             return goods;
         }
         set;
     }

     public Goods_Vendor__c goodsVendor{
         get{
             if(goodsVendor == null) {
                 goodsVendor = new Goods_Vendor__c();
             }
             return goodsVendor;
         }
         set;
     }

     public PageReference saveFinally() {
         Savepoint sp = Database.setSavepoint();
         try {
             upsert goods;
             goodsVendor.Goods__c = goods.Id;
             upsert goodsVendor;
         } catch(DMLException e) {
             Database.rollback(sp);
             ApexPages.addMessage(new ApexPages.Message(ApexPages.SEVERITY.ERROR,e.getMessage()));
             return null;
         }
         return redirectToGoodsList();
     }

     public PageReference redirectToGoods() {
         return Page.detailGoods;
     }

     public PageReference redirectToVendor() {
         return Page.detailVendor;
     }

     public PageReference redirectToTotal() {
         return Page.detailGoodsTotal;
     }

     public PageReference cancelCreateGoods() {
         if(!isEditView) {
             if(goodsVendor != null && goodsVendor.Id != null) {
                 delete goodsVendor;
             }
             if(goods != null && goods.Id != null) {
                 delete goods;
             }
         }
         return redirectToGoodsList();
     }

     public PageReference redirectToGoodsList() {
         PageReference ref = new PageReference('/apex/GoodsListPage');
         ref.setRedirect(true);
         return ref;
     }

 }

5.detailGoods.page:商品信息详情页面

 <apex:page controller="GoodsDetailController" tabStyle="Goods__c">
     <script>
         function confirmCancel() {
             var isCancel = confirm("确定取消新建商品信息?");
             if (isCancel) {
                 return true;
             }
             return false;
         }
     </script>
     <apex:sectionHeader title="New Goods " subtitle="Step 1 of 3"/>
     <apex:form >
         <apex:pageBlock title="Goods Information" mode="edit">
             <apex:pageBlockButtons >
                 <apex:commandButton action="{!redirectToVendor}" value="Next"></apex:commandButton>
                 <apex:commandButton action="{!cancelCreateGoods}" value="Cancel" onclick="return confirmCancel()" immediate="true"/>
             </apex:pageBlockButtons>
             <apex:pageBlockSection title="Goods Basic Information">
                 <apex:inputField id="GoodsUniqueCode" value="{!goods.Goods_Code_Unique__c}"/>
                 <apex:inputField id="GoodsName" value="{!goods.GoodsName__c}"/>
                 <apex:inputField id="GoodsPrice" value="{!goods.GoodsPrice__c}"/>
                 <apex:inputField id="GoodsCostPrice" value="{!goods.GoodsCostPrice__c}"/>
             </apex:pageBlockSection>
         </apex:pageBlock>
     </apex:form>
 </apex:page>

6.detailVendor.page:vendor详情页

 <apex:page controller="GoodsDetailController" tabStyle="Goods_Vendor__c">
     <script>
         function confirmCancel() {
             var isCancel = confirm("确定取消新建商品信息?");
             if (isCancel)
                 return true;
             return false;
         }
     </script>
     <apex:sectionHeader title="New Vendor" subtitle="Step 2 of 3"/>
     <apex:form >
         <apex:pageBlock title="Vendor Information" mode="edit">
             <apex:pageBlockButtons >
                 <apex:commandButton action="{!redirectToGoods}" value="Previous">
                 </apex:commandButton>
                 <apex:commandButton action="{!redirectToTotal}" value="Next">
                 </apex:commandButton>
                 <apex:commandButton action="{!cancelCreateGoods}" value="Cancel" onclick="return confirmCancel()" immediate="true"/>
             </apex:pageBlockButtons>
             <apex:pageBlockSection title="Vendor Basic Information">
                 <apex:inputField id="VendorName" value="{!goodsVendor.Vendor_Name__c}"/>
             </apex:pageBlockSection>
         </apex:pageBlock>
     </apex:form>
 </apex:page>

7.detailTotal.page:用于显示goods以及vendor的详细信息以及提交按钮

 <apex:page controller="GoodsDetailController" tabStyle="Goods__c">
     <script>
         function confirmCancel() {
             var isCancel = confirm("确定取消新建商品信息?");
             if (isCancel)
                 return true;
             return false;
         }
     </script>
     <apex:sectionHeader title="Goods Total Infomation" subtitle="Step 3 of 3"/>
     <apex:form >
         <apex:pageMessages />
         <apex:pageBlock title="Total Information">
             <apex:pageBlockButtons >
                 <apex:commandButton action="{!redirectToVendor}" value="Previous"/>
                 <apex:commandButton action="{!saveFinally}" value="Save"/>
                 <apex:commandButton action="{!cancelCreateGoods}" value="Cancel" onclick="return confirmCancel()" immediate="true"/>
             </apex:pageBlockButtons>
             <apex:pageBlockSection title="Goods Information">
                 <apex:outputField value="{!goods.Goods_Code_Unique__c}"/>
                 <apex:outputField value="{!goods.GoodsName__c}"/>
                 <apex:outputField value="{!goods.GoodsPrice__c}"/>
                 <apex:outputField value="{!goods.GoodsCostPrice__c}"/>
             </apex:pageBlockSection>
             <apex:pageBlockSection title="Vendor Information">
                 <apex:outputField value="{!goodsVendor.Vendor_Name__c}"/>
             </apex:pageBlockSection>
         </apex:pageBlock>
     </apex:form>
 </apex:page>

效果展示：

1.商品列表

2.点击编辑，如果点击新建其他内容均为空，此处只显示编辑

3.点击next进入vendor页面

4.total页面

5.点击save以后，成功则跳转到list页面，失败则显示失败ERROR

失败情况：

成功情况：

总结：Wizard适用于新建数据时创建一套级联数据情况，篇中step1-3之间的跳转均使用转发方式，而不是重定向(ref.setRedirect(true))，原因为：三个页面绑定了同一个controller，转发方式第一次进入走构造函数，以后均不在走构造函数，而重定向需要每次都走构造函数。如果使用重定向，则前一页修改的数据重定向以后在回此页面，修改的数据便会回滚到以前的状态。有错误的地方欢迎指正，有问题欢迎留言。