2 days ago

《仿盒马》app开发技术分享-- 首页模块配置（4）

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金刚区活动模块，数据也成功的从云端获取，并且我们跟ScrollBar进行关联，能够让用户直观的查看当前滑动的位置。现在我们开始继续向下，随着我们首页的内容越来越多，我们如果因为某些业务需要进行调整和下线，想隐藏和关掉某些模块，就需要每次在打包的时候进行处理，这很明显会非常的麻烦，现在我们通过一张表来对首页的整个模块进行控制，这样每次做展示的时候去进行查询当前状态来实现想要的效果。

代码实现

首先我们先创建一个表把所有的关联id 以及模块的状态字段定义一下

{

"objectTypeName": "home_activity_setting",

"fields": [

{"fieldName": "id", "fieldType": "Integer", "notNull": true, "belongPrimaryKey": true},

{"fieldName": "poster_id", "fieldType": "Integer"},

{"fieldName": "banner_id", "fieldType": "Integer"},

{"fieldName": "good_left_id", "fieldType": "Integer"},

{"fieldName": "good_right_id", "fieldType": "Integer"},

{"fieldName": "goods_list_id", "fieldType": "Integer"},

{"fieldName": "new_people_status", "fieldType": "Boolean"},

{"fieldName": "split_layout_status", "fieldType": "Boolean"},

{"fieldName": "banner_status", "fieldType": "Boolean"},

{"fieldName": "goods_list_status", "fieldType": "Boolean"}

"indexes": [

{"indexName": "field1IndexId", "indexList": [{"fieldName":"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"]}

]

}

然后我们创建数据

{

"cloudDBZoneName": "default",

"objectTypeName": "home_activity_setting",

"objects": [

{

  "id": 1,

  "poster_id": 1,

  "banner_id": 1,

  "good_left_id": 1,

  "good_right_id": 1,

  "goods_list_id": 1,

  "new_people_status": true,

  "split_layout_status": true,

  "banner_status": true,

  "goods_list_status": true

}

]

}

现在进行实体类的创建

export class HomeActivitySetting {

id: number;

poster_id: number;

banner_id: number;

good_left_id: number;

good_right_id: number;

goods_list_id: number;

new_people_status: boolean;

split_layout_status: boolean;

banner_status: boolean;

goods_list_status: boolean;

constructor() {

}

getFieldTypeMap():  Map<string, string> {

    let fieldTypeMap = new Map<string, string>();

    fieldTypeMap.set('id', 'Integer');

    fieldTypeMap.set('poster_id', 'Integer');

    fieldTypeMap.set('banner_id', 'Integer');

    fieldTypeMap.set('good_left_id', 'Integer');

    fieldTypeMap.set('good_right_id', 'Integer');

    fieldTypeMap.set('goods_list_id', 'Integer');

    fieldTypeMap.set('new_people_status', 'Boolean');

    fieldTypeMap.set('split_layout_status', 'Boolean');

    fieldTypeMap.set('banner_status', 'Boolean');

    fieldTypeMap.set('goods_list_status', 'Boolean');

    return fieldTypeMap;

}

getClassName(): string {

    return 'home_activity_setting';

}

getPrimaryKeyList(): string[] {

    let primaryKeyList: string[] = [];

    primaryKeyList.push('id');

    return primaryKeyList;

}

getIndexList(): string[] {

    let indexList: string[] = [];

    indexList.push('id');

    return indexList;

}

getEncryptedFieldList(): string[] {

    let encryptedFieldList: string[] = [];

    return encryptedFieldList;

}

setId(id: number): void {

    this.id = id;

}

getId(): number  {

    return this.id;

}

setPoster_id(poster_id: number): void {

    this.poster_id = poster_id;

}

getPoster_id(): number  {

    return this.poster_id;

}

setBanner_id(banner_id: number): void {

    this.banner_id = banner_id;

}

getBanner_id(): number  {

    return this.banner_id;

}

setGood_left_id(good_left_id: number): void {

    this.good_left_id = good_left_id;

}

getGood_left_id(): number  {

    return this.good_left_id;

}

setGood_right_id(good_right_id: number): void {

    this.good_right_id = good_right_id;

}

getGood_right_id(): number  {

    return this.good_right_id;

}

setGoods_list_id(goods_list_id: number): void {

    this.goods_list_id = goods_list_id;

}

getGoods_list_id(): number  {

    return this.goods_list_id;

}

setNew_people_status(new_people_status: boolean): void {

    this.new_people_status = new_people_status;

}

getNew_people_status(): boolean  {

    return this.new_people_status;

}

setSplit_layout_status(split_layout_status: boolean): void {

    this.split_layout_status = split_layout_status;

}

getSplit_layout_status(): boolean  {

    return this.split_layout_status;

}

setBanner_status(banner_status: boolean): void {

    this.banner_status = banner_status;

}

getBanner_status(): boolean  {

    return this.banner_status;

}

setGoods_list_status(goods_list_status: boolean): void {

    this.goods_list_status = goods_list_status;

}

getGoods_list_status(): boolean  {

    return this.goods_list_status;

}

static parseFrom(inputObject: any): HomeActivitySetting {

    let result = new HomeActivitySetting();

    if (!inputObject) {

        return result;

    }

    if (inputObject.id) {

        result.id = inputObject.id;

    }

    if (inputObject.poster_id) {

        result.poster_id = inputObject.poster_id;

    }

    if (inputObject.banner_id) {

        result.banner_id = inputObject.banner_id;

    }

    if (inputObject.good_left_id) {

        result.good_left_id = inputObject.good_left_id;

    }

    if (inputObject.good_right_id) {

        result.good_right_id = inputObject.good_right_id;

    }

    if (inputObject.goods_list_id) {

        result.goods_list_id = inputObject.goods_list_id;

    }

    if (inputObject.new_people_status) {

        result.new_people_status = inputObject.new_people_status;

    }

    if (inputObject.split_layout_status) {

        result.split_layout_status = inputObject.split_layout_status;

    }

    if (inputObject.banner_status) {

        result.banner_status = inputObject.banner_status;

    }

    if (inputObject.goods_list_status) {

        result.goods_list_status = inputObject.goods_list_status;

    }

    return result;

}

}

db类

import { cloudDatabase } from '@kit.CloudFoundationKit';

class home_activity_setting extends cloudDatabase.DatabaseObject {

public id: number;

public poster_id: number;

public banner_id: number;

public good_left_id: number;

public good_right_id: number;

public goods_list_id: number;

public new_people_status: boolean;

public split_layout_status: boolean;

public banner_status: boolean;

public goods_list_status: boolean;

public naturalbase_ClassName(): string {

return 'home_activity_setting';

}

export { home_activity_setting };

创建完成之后，记得要在开发工具中把数据提交到云端，我们把数据提交到云端后，可以看到数据提交成功并且表也已经创建完成

进行数据查询

  let databaseZone = cloudDatabase.zone('default');

  let condition3 = new cloudDatabase.DatabaseQuery(home_activity_setting);

let listData3 = await databaseZone.query(condition3);

let json3 = JSON.stringify(listData3)

let data3:HomeActivitySetting[]= JSON.parse(json3)

this.homeActivity=data3

} catch (err) {

hilog.error(0x0000, 'testTag', Failed to query data, code: ${err.code}, message: ${err.message});

}

数据也已经查询成功，接下来我们直接运行程序，可以看到金刚区是在显示中的，接下来我们修改金刚区的状态，再执行一下，可以看到金刚区已经不见了，到这里我们首页模块的显示隐藏配置已经实现了。

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