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

1 public without sharing class GoodsHelper { 2      3     public static final String BASE_GOODS_QUERY = 'SELECT CreatedById, CreatedDate, IsDeleted,' +  4                     ' Goods_Code_Unique__c, Name, GoodsPicture__c, GoodsBrand__c, GoodsCostPrice__c,' +  5                     ' GoodsDescribe__c, GoodsName__c, GoodsPrice__c, GoodsProfit__c, Is_Draft__c,' + 6                     ' LastModifiedById, LastModifiedDate, No__c, OwnerId, Id, RecordTypeId,' + 7                     ' Status__c, SystemModstamp' + 8                     ' FROM Goods__c where IsDeleted = false'; 9     public static final String BASE_GOODS_COUNT_QUERY = 'SELECT count() from Goods__c where IsDeleted = false';10     public static MyPaginationEnhancement getGoodsList(String goodsName,String goodsBrand,MyPaginationEnhancement pagination) {11         String queryCondition= '';12         String orderBy ='';13         if(goodsName != null) {14             queryCondition += ' and GoodsName__c like %\'' + goodsName + '%\'';15         }16         if(goodsBrand != null) {17             queryCondition += ' and GoodsBrand__c = :goodsBrand';18         }19         orderBy = ' order by createddate';20         21         pagination.getQueryResult(BASE_GOODS_COUNT_QUERY,BASE_GOODS_QUERY,queryCondition,null,orderBy);22         return pagination;23     }24 }

2.GoodsListController:Goods列表Controller

1 public with sharing class GoodsListController { 2     public Map
     
       parameters; 3      4     public GoodsListController() { 5         parameters=ApexPages.currentPage().getParameters(); 6         init(); 7     } 8      9     public MyPaginationEnhancement pagination = new MyPaginationEnhancement();10     11     public String goodsName{get;set;}12     13     public String goodsBrand{get;set;}14     15     16     public void init() {17         queryByCondition();18     }19     20     public void queryByCondition() {21         GoodsHelper.getGoodsList(goodsName,goodsBrand,pagination);22     }23     24     public MyPaginationEnhancement resultPagination{25         get{26             if(pagination ==null){27                pagination =new MyPaginationEnhancement();28             }29             return pagination;30         }31         set;32     }33     34     public List
      
        resultList{35         get{36             if(pagination==null || pagination.resultList==null){37                return new List
       
        (); 38             }39             return pagination.resultList;40         }41         set;42     }43     44     public PageReference newGoods() {45         return Page.detailGoods;46     }47     48     public void firstPage() {49        pagination.first();50        queryByCondition();     51     } 52     53     public void lastPage() {54        pagination.last();55        queryByCondition();            56     } 57    58     public void previousPage() {59        pagination.previous();60        queryByCondition();      61     } 62    63     public void nextPage() {64        pagination.next();65        queryByCondition();66     }67 }
       
      
     

3.GoodsListPage

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              {!$ObjectType.Goods__c.fields.GoodsName__c.label}
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              {!$ObjectType.Goods__c.fields.GoodsPrice__c.label}
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              {!$ObjectType.Goods__c.fields.GoodsCostPrice__c.label}
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              操作
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              编辑34 
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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。

1 public with sharing class GoodsDetailController {  2       3     /*入口是新建还是更新：新建为false，更新为true*/  4     public Boolean isEditView{  5         get {  6             if(isEditView == null) {  7                 isEditView = false;  8             }  9             return isEditView; 10         } 11         set; 12     } 13      14     public GoodsDetailController() { 15         init(); 16     } 17      18     public GoodsDetailController(ApexPages.StandardController controller) { 19         init(); 20     } 21      22     public void init() { 23         String goodsId = ApexPages.currentPage().getParameters().get('goodsId'); 24         if(goodsId != null) { 25             isEditView = true; 26             String queryGoods = 'SELECT Goods_Code_Unique__c, Name, GoodsBrand__c,' + 27             ' GoodsCostPrice__c, GoodsDescribe__c, GoodsName__c, GoodsPrice__c,' + 28             ' GoodsProfit__c, No__c,Id, Status__c' + 29             ' FROM Goods__c where Id = :goodsId'; 30             String queryGoodsVendor = 'SELECT Goods__c, Id, Vendor_Name__c' + 31             ' FROM Goods_Vendor__c where Goods__c = :goodsId'; 32             List
     
       goodsList = Database.query(queryGoods); 33             if(goodsList != null && goodsList.size() > 0) { 34                 goods = goodsList.get(0); 35             } 36             List
      
        goodsVendorList = Database.query(queryGoodsVendor); 37             if(goodsVendorList != null && goodsVendorList.size() > 0) { 38                 goodsVendor = goodsVendorList.get(0); 39             } 40         } 41     } 42      43     public Goods__c goods{ 44         get{ 45             if(goods == null) { 46                 goods = new Goods__c(); 47             } 48             return goods; 49         } 50         set; 51     } 52      53     public Goods_Vendor__c goodsVendor{ 54         get{ 55             if(goodsVendor == null) { 56                 goodsVendor = new Goods_Vendor__c(); 57             } 58             return goodsVendor; 59         } 60         set; 61     } 62      63     public PageReference saveFinally() { 64         Savepoint sp = Database.setSavepoint(); 65         try { 66             upsert goods; 67             goodsVendor.Goods__c = goods.Id; 68             upsert goodsVendor; 69         } catch(DMLException e) { 70             Database.rollback(sp); 71             ApexPages.addMessage(new ApexPages.Message(ApexPages.SEVERITY.ERROR,e.getMessage())); 72             return null; 73         } 74         return redirectToGoodsList(); 75     } 76      77      78      79     public PageReference redirectToGoods() { 80         return Page.detailGoods; 81     } 82      83     public PageReference redirectToVendor() { 84         return Page.detailVendor; 85     } 86      87     public PageReference redirectToTotal() { 88         return Page.detailGoodsTotal; 89     } 90      91     public PageReference cancelCreateGoods() { 92         if(!isEditView) { 93             if(goodsVendor != null && goodsVendor.Id != null) { 94                 delete goodsVendor; 95             } 96             if(goods != null && goods.Id != null) { 97                 delete goods; 98             } 99         }100         return redirectToGoodsList();101     }102     103     public PageReference redirectToGoodsList() {104         PageReference ref = new PageReference('/apex/GoodsListPage');105         ref.setRedirect(true);106         return ref;107     }108     109 }
      
     

5.detailGoods.page:商品信息详情页面

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6.detailVendor.page:vendor详情页

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

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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。

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