《仿盒马》app开发技术分享-- 首页活动配置（5）

技术栈

Appgallery connect

开发准备

上一篇文章中我们实现了项目端云一体化首页部分模块动态配置，实现了对模块模块的后端控制显示和隐藏，这能让我们的app更加的灵活，也能应对更多的情况。现在我们来对配置模块进行完善，除了已有的模块以外，我们还有一些banner ，活动入口等模块，这些模块的数据并不多，所以我们也归纳到配置中去实现。并且我们在配置表中添加了一些不同的id，我们只需要根据相对应的id 去查询对应的表就可以了

代码实现
实现横幅海报，商品活动入口

创建海报横幅表
{
"objectTypeName": "home_poster",
"fields": [

{"fieldName": "id", "fieldType": "Integer", "notNull": true, "belongPrimaryKey": true},
{"fieldName": "poster_id", "fieldType": "Integer", "notNull": true, "defaultValue": 0},
{"fieldName": "url", "fieldType": "String"},
{"fieldName": "router", "fieldType": "String"}

],
"indexes": [

{"indexName": "posterIdIndex", "indexList": [{"fieldName":"poster_id","sortType":"ASC"}]}

],
"permissions": [

{"role": "World", "rights": ["Read"]},
{"role": "Authenticated", "rights": ["Read", "Upsert"]},
{"role": "Creator", "rights": ["Read", "Upsert", "Delete"]},
{"role": "Administrator", "rights": ["Read", "Upsert", "Delete"]}

]
}

创建商品活动入口表

{
"objectTypeName": "home_good_center",
"fields": [

{"fieldName": "id", "fieldType": "Integer", "notNull": true, "belongPrimaryKey": true},
{"fieldName": "good_left_id", "fieldType": "Integer", "notNull": true, "defaultValue": 0},
{"fieldName": "title", "fieldType": "String"},
{"fieldName": "url", "fieldType": "String"}

],
"indexes": [

{"indexName": "goodLeftIdIndex", "indexList": [{"fieldName":"good_left_id","sortType":"ASC"}]}

],
"permissions": [

{"role": "World", "rights": ["Read"]},
{"role": "Authenticated", "rights": ["Read", "Upsert"]},
{"role": "Creator", "rights": ["Read", "Upsert", "Delete"]},
{"role": "Administrator", "rights": ["Read", "Upsert", "Delete"]}

]
}

分别填充数据

海报
{
"cloudDBZoneName": "default",
"objectTypeName": "home_poster",
"objects": [

{
  "id": 10,
  "poster_id": 1,
  "url": "在线图片链接",
  "router": "string1"
}

]
}
商品活动入口
{
"cloudDBZoneName": "default",
"objectTypeName": "home_good_center",
"objects": [

{
  "id": 10,
  "good_left_id": 1,
  "title": "生鲜严选",
  "url": "在线图片链接"
},
{
  "id": 20,
  "good_left_id": 1,
  "title": "西购新品",
  "url": "在线图片链接"
},
{
  "id": 30,
  "good_left_id": 1,
  "title": "今日推荐",
  "url": "在线图片链接"
}

]
}

都填充完成后，我们把数据提交到云端，然后进行配置类的同步

接下来我们进行数据查询，因为我们在配置表中添加了id ，所以我们要查询出对应id的活动入口。

@State homeActivity:HomeActivitySetting[]=[]//首页活动配置
@State homeGoodCenter:HomeGoodCenter[]=[]//商品活动入口

let listData3 = await databaseZone.query(condition3);

  let json3 = JSON.stringify(listData3)
  let data3:HomeActivitySetting[]= JSON.parse(json3)
  this.homeActivity=data3
  hilog.error(0x0000, 'testTag', `Failed to query data, code: ${this.homeActivity}`);
  let list5 = await databaseZone.query(home_good);
  home_good.equalTo("good_left_id",data3[0].good_left_id);
  let json5 = JSON.stringify(list5)
  let data5:HomeGoodCenter[]= JSON.parse(json5)
  this.homeGoodCenter=data5
  hilog.error(0x0000, 'testTag', `Failed to query data, code: ${this.homeGoodCenter}`);

然后我们修改一下商品活动入口的内容

import { HomeGoodCenter } from "../entity/HomeGoodCenter"

@Component
@Preview
export struct SpecialColumn {
@Link goodInfo: HomeGoodCenter[]

build() {

Column(){
  List({space:10}){
    ForEach(this.goodInfo,(data:HomeGoodCenter)=>{
      ListItem(){
        Column(){
          Text(data.title)
            .fontSize(16)
            .fontWeight(FontWeight.Bold)
            .fontColor(Color.Black)
          Blank()
          Image(data.url)
            .width('28%')
            .height(90)
            .margin({ bottom: 8 })
            .objectFit(ImageFit.Cover)
        }
        .borderRadius(5)
        .backgroundColor("#ffeedeb8")
        .padding(5)
      }
    })
  }
  .listDirection(Axis.Horizontal)
}
.margin({top:10})

}
}

在首页进行调用
SpecialColumn({goodInfo:this.homeGoodCenter})
到这里我们就实现了活动配置相关的内容