电商项目——商品表


需求分析:商家添加商品,如上图样式,如商家添加手机这个商品,我们先查询到手机这个属性的规格选项,及规格    ,当商家选择一个规格和一个规格选项时,我们为其添加一行组成商品数据  SKU  ,(规格和规格选项的关系就是,每个规格下面都对应下面所有的规格选项,一行商品数据就是一个商品)

实现步骤:
1.先通过模板ID查询规格,再通过规格ID查询到规格选项,并在页面显示,成选择框样式。
1.通过$watch监控entity.goods.typeTemplateId模板id的变化  调用模板的方法通过模板id查询规格,及规格选项

$scope.$watch('entity.goods.typeTemplateId', function(newValue, oldValue) {        
             typeTemplateService.findSpecOptionListByTypeId(newValue).success(
                           function(data) {
                                 $scope.specList = data;
                           });
       });

2.在serviceimpl中  
//注入规格选项mapper接口代理对象
    @Autowired
    private TbSpecificationOptionMapper specificationOptionMapper;

    /**
     * 需求: 查询模版中存储关键规格属性对应规格选项
     * 请求: findSpecOptionListByTypeId
     * 参数:模版id
     * 返回值: List<Map>
     */
    public List<Map> findSpecOptionListByTypeId(Long typeId) {
        // 根据模版id查询规格属性值
        TbTypeTemplate typeTemplate = typeTemplateMapper.selectByPrimaryKey(typeId);
        // 从模版中获取规格属性值
        String specIds = typeTemplate.getSpecIds();
        
        // [{"id":27,"text":"网络"},{"id":32,"text":"机身内存"}]
        // 把规格属性转换为json对象
        List<Map> specList = JSON.parseArray(specIds, Map.class);
        // 循环规格属性值,根据规格属性id查询规格选项
        for (Map map : specList) {
            //从规格属性中获取规格id
            Integer specId = (Integer)map.get("id");
            
            
            //创建example对象
            TbSpecificationOptionExample example = new TbSpecificationOptionExample();
            //创建criteria对象,设置查询参数
            com.pyg.pojo.TbSpecificationOptionExample.Criteria createCriteria = example.createCriteria();
            //设置外键规格id查询规格选项
            createCriteria.andSpecIdEqualTo(specId.longValue());
            //查询规格选项值(根据外键查询)
            List<TbSpecificationOption> specOptionList = specificationOptionMapper.selectByExample(example);
            
            // 根据数据库里的[{"id":27,"text":"网络","options":[{}{}]},{"id":32,"text":"机身内存","options":[{}{}]}]
            //把规格选项封装到map中,存到模板里的规格中
            map.put("options", specOptionList);
            
        }
        return specList;
    }


3.页面显示
<div class="row data-type">
                                                     <div ng-repeat="spec in specList">
                                                            <div class="col-md-2 title">{{spec.text}}</div>
                                                            <div class="col-md-10 data">
                                                                   <span ng-repeat="option in spec.options">//遍历模板里面的规格里存放的规格选项
                                                                   <input type="checkbox" ng-click="updateSpecAttribute($event,spec.text,option.optionName);createSkuItemList()">{{option.optionName}}
                                                                   </span>
                                                            </div>
                                                     </div>
                                                     
                                               </div>

2.更具数据库查看规格选项和规格属性在数据库保存的样式,我们是如下样式,及把规格和规格选项的数据以json保存,attributeName代表规格名,attributeValue代表该规格的规格属性(这是一个数组类型),以对象的方式放在json数组中
[{"attributeName":"网络制式","attributeValue":["移动3G","移动4G"]},{"attributeName":"屏幕尺寸","attributeValue":["6寸","5.5寸"]}]
3.实现,当商家选择一个规格和一个规格选项时,我们为其添加一行组成商品数据  SKU  ,(规格和规格选项的关系就是,每个规格下面都对应下面所有的规格选项,一行商品数据就是一个商品)
也就是说使用两个遍历方法,先遍历一个规格,在这个规格中再遍历规格选项,然后深克隆数据添加一行数据
    // 定义选中规格属性事件
    $scope.updateSpecAttribute = function($event, text, name) {
        // 获取实体中规格选项值
        // [{"attributeName":"网络","attributeValue":["移动3G"]}]
        var specList = $scope.entity.goodsDesc.specificationItems;

        // 循环规格选项值
        for (var i = 0; i < specList.length; i++) {
            // 判断选择的是那个属性
            if (specList[i].attributeName == text) {
                // 判断是否选中事件
                if ($event.target.checked) {
                    // [{"attributeName":"网络","attributeValue":["移动3G","联通4G"]}]
                    // 把规格选项推送到规格选项数据结构中
                    specList[i].attributeValue.push(name);
                } else {
                    // [{"attributeName":"网络","attributeValue":["移动3G"]}]
                    // 取消事件
                    specList[i].attributeValue.splice(
                            specList[i].attributeValue.indexOf(name), 1);
                }

                return;
            }

        }
        // 如果商品描述中规格属性没值,把选择中值推送到集合中
        // 第一次点击规格属性选项值
        // [{"attributeName":"网络","attributeValue":["移动3G"]}]
        specList.push({
            attributeName : text,
            attributeValue : [ name ]
        });
    };
完成单个商品的组合,,

// 定义函数,封装规格选项组合成商品最小销售单元
    $scope.createSkuItemList = function() {

        // 初始化规格数据组合
        $scope.entity.itemList = [ {
            spec : {},   //规格属性
            price : 999999, //默认库存
            stockCount : 0,//默认价格
            status : '0',//默认商品状态
            idDefault : '0'//默认是否选用
        } ];
        // 获取选中规格属性值
        // [{"attributeName":"网络","attributeValue":["电信2G","联通2G"]},{"attributeName":"机身内存","attributeValue":["16G","64G"]}]
        var specList = $scope.entity.goodsDesc.specificationItems;

        // 循环规格属性值,组合sku最小销售单元商品数据
        for (var i = 0; i < specList.length; i++) {
            // 第一次循环:$scope.entity.itemList =
            // [{spec:{"网络":"电信2G"},price:999999,stockCount:0,status:'0',idDefault:'0'},{spec:{"网络":"联通2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}]
            // 添加一列  调用添加一行方法
            $scope.entity.itemList = addColumn($scope.entity.itemList,
                    specList[i].attributeName, specList[i].attributeValue);

        }

    };
==================================================================================================
//实现添加一行的数据  方法
    addColumn = function(list, name, columnValues) {

    //定义一个空数组
        var newList = [];

        // 第一次循环数据:[{spec:{},price:999999,stockCount:0,status:'0',idDefault:'0'}];
        // 第二次循环数据:[{spec:{"网络":"电信2G"},price:999999,stockCount:0,status:'0',idDefault:'0'},{spec:{"网络":"联通2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}]
        // 循环list集合数据 2
        for (var i = 0; i < list.length; i++) {

            // 第一次循环第一个对象:{spec:{},price:999999,stockCount:0,status:'0',idDefault:'0'}
            // 第二次循环第一个对象:{spec:{"网络":"电信2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}
            // 获取一个旧的对象
            var oldRow = list[i];
            // 第一次循环:columnValues:["电信2G","联通2G"]
            // 第二次循环:columnValues:["16G","64G"]
            // 第二个循环
            for (var j = 0; j < columnValues.length; j++) {
                // 第一次克隆:{spec:{},price:999999,stockCount:0,status:'0',idDefault:'0'}
                // 第二次克隆:
                // {spec:{"网络":"电信2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}
                // 深克隆操作,新创建一行数据
                var newRow = JSON.parse(JSON.stringify(oldRow));
                // {spec:{"网络":"电信2G",:"机身内存":"4G"},price:999999,stockCount:0,status:'0',idDefault:'0'}
                newRow.spec[name] = columnValues[j];

                // j:循环第一次:{spec:{"网络":"电信2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}
                // j:循环第二次:{spec:{"网络":"联通2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}
                // 推送集合  将新创建的一行数据,推送到上面定义的空数组中,并返回到上面的单击事件方法中
                newList.push(newRow);
            }
        }
        // [{spec:{"网络":"电信2G"},price:999999,stockCount:0,status:'0',idDefault:'0'},{spec:{"网络":"联通2G"},price:999999,stockCount:0,status:'0',idDefault:'0'}]
        return newList;

    };

页面显示
       <div class="row data-type">
                                                     <table
                                                            class="table table-bordered table-striped table-hover dataTable">
                                                            <thead>
                                                                   <tr>
                                                                         <!--回显规格及规格选项  -->
                                                                         <th class="sorting" ng-repeat="spec in entity.goodsDesc.specificationItems">{{spec.attributeName}}</th>
                                                                         
                                                                         <th class="sorting">价格</th>
                                                                         <th class="sorting">库存</th>
                                                                         <th class="sorting">是否启用</th>
                                                                         <th class="sorting">是否默认</th>
                                                                   </tr>
                                                            </thead>
                                                            <tbody>
                                                                   <tr ng-repeat="item in entity.itemList">
                                                                         <!-- 遍历单个商品的数据,并通过过个属性回显 -->

                                                                         <td ng-repeat="specName in entity.goodsDesc.specificationItems">{{item.spec[specName.attributeName]}}</td>
                                                                          <td><input class="form-control" ng-model="item.price" placeholder="价格">
                                                                         </td>
                                                                          <td><input class="form-control" ng-model="item.stockCount" placeholder="库存数量">
                                                                         </td>
                                                                          <td><input type="checkbox" ng-model="item.status"></td>
                                                                          <td><input type="checkbox" ng-model="item.isDefault" ng-true-value="1" ng-false-value="0"></td>
                                                                   </tr>
                                                                   
                                                            </tbody>
                                                     </table>
                                               </div>


评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值