So verwenden Sie Vue3+ts zur Entwicklung von ProTable

/* eslint valid-jsdoc: "off" */
'use strict';
/**
 * @param {Egg.EggAppInfo} appInfo app info
 */
module.exports = appInfo => {
  /**
   * built-in config
   * @type {Egg.EggAppConfig}
   **/
  const config = exports = {};
  // use for cookie sign key, should change to your own and keep security
  config.keys = appInfo.name + '_1655529530112_7627';
  // add your middleware config here
  config.middleware = [];
  config.security = {
    csrf: {
      enable: false,
      ignoreJSON: true,
    },
  };
  config.cors = {
    origin: '*',
    allowMethods: 'GET,HEAD,PUT,POST,DELETE,PATCH',
  };
  // add your user config here
  const userConfig = {
    // myAppName: 'egg',
  };
  // sequelize
  const sequelize = {
    dialect: 'mysql',
    host: '127.0.0.1',
    port: 3306,
    username: 'root',
    password: '123456',
    database: 'test_database',
    timezone: '+08:00',
    dialectOptions: {
      dateStrings: true,
      typeCast: true,
    },
    define: {
      freezeTableName: true, // 模型名强制和表明一致
      underscored: true, // 字段以下划线（_）来分割（默认是驼峰命名风格）
    },
  };
  return {
    ...config,
    ...userConfig,
    sequelize,
  };
};

timezone: '+08:00',  // 改为标准时区
dialectOptions: {
  dateStrings: true,
  typeCast: true,
},

'use strict';
const { success } = require('../utils/res');
const { omit, pick } = require('lodash');
const Controller = require('egg').Controller;
class ProjectConfigController extends Controller {
  async index() {
    const { ctx } = this;
    const { pageSize, pageIndex } = ctx.query;
    const { Op, fn, col, where, literal } = this.app.Sequelize;
    // 固定的查询参数
    const stableQuery = pick(ctx.query, [ 'type', 'createdAt', 'updatedAt' ]);
    const stableQueryArgs = Object.keys(stableQuery)
      .filter(key => Boolean(stableQuery[key]))
      .map(key => {
        return {
          [key]: stableQuery[key],
        };
      });
    const whereCondition = omit(ctx.query, [ 'pageIndex', 'pageSize', 'type', 'createdAt', 'updatedAt' ]);
    // 需要模糊查询的参数
    const whereArgs = Object.keys(whereCondition)
      .filter(key => Boolean(whereCondition[key]))
      .map(key => {
        return where(fn('json_extract', col('value'), literal(`\'$.${key}\'`)), {
          [Op.like]: `%${whereCondition[key]}%`,
        });
      });
    const query = {
      where: {
        [Op.and]: [
          ...stableQueryArgs,
          ...whereArgs,
        ],
      },
      order: [
        [ 'createdAt', 'DESC' ],
      ],
      limit: Number(pageSize), // 每页显示数量
      offset: (pageIndex - 1) * pageSize, // 当前页数
    };
    const data = await ctx.model.ProjectConfig.findAndCountAll(query);
    ctx.body = success(data);
  }
  async create() {
    const { ctx } = this;
    const { type, value } = ctx.request.body;
    const data = await ctx.model.ProjectConfig.create({ type, value });
    ctx.body = success(data);
  }
  async update() {
    const { ctx } = this;
    const { type, value } = ctx.request.body;
    const { id } = ctx.params;
    const data = await ctx.model.ProjectConfig.update({ type, value }, { where: { id } });
    ctx.body = success(data);
  }
  async destroy() {
    const { ctx } = this;
    const { id } = ctx.params;
    console.log(id);
    const data = await ctx.model.ProjectConfig.destroy({ where: { id } });
    ctx.body = success(data);
  }
  async batchDestroy() {
    const { ctx } = this;
    const { ids } = ctx.request.body;
    console.log(ids);
    const { Op } = this.app.Sequelize;
    const data = await ctx.model.ProjectConfig.destroy({
      where: {
        id: {
          [Op.in]: ids,
        },
      },
    });
    ctx.body = success(data);
  }
}
module.exports = ProjectConfigController;

SELECT json_extract(字段名,'$.json结构') FROM 表名;

Post.findAll({
  where: sequelize.where(sequelize.fn('char_length', sequelize.col('content')), 7)
});
// SELECT ... FROM "posts" AS "post" WHERE char_length("content") = 7

'use strict';
module.exports = app => {
  const { STRING, INTEGER, TEXT, DATE } = app.Sequelize;
  const ProjectConfig = app.model.define('project_config', {
    id: { type: INTEGER, primaryKey: true, autoIncrement: true },
    type: { type: STRING },
    value: {
      type: TEXT,
      get() {
        return this.getDataValue('value') ? JSON.parse(this.getDataValue('value')) : null;
      },
      set(value) {
        this.setDataValue('value', JSON.stringify(value));
      },
    },
    createdAt: { type: DATE },
    updatedAt: { type: DATE },
  });
  return ProjectConfig;
};

'use strict';
/**
 * @param {Egg.Application} app - egg application
 */
module.exports = app => {
  const { router, controller } = app;
  router.get('/api/projectConfig', controller.projectConfig.index);
  router.post('/api/projectConfig', controller.projectConfig.create);
  router.put('/api/projectConfig/:id', controller.projectConfig.update);
  router.delete('/api/projectConfig/:id', controller.projectConfig.destroy);
  router.post('/api/projectConfig/batchDelete', controller.projectConfig.batchDestroy);
};

interface A {
  x: number;
  y: string;
}
// 拿到 A 类型的 key 字面量枚举类型，相当于 type B = 'x' | 'y'
type B = keyof A;
const json = { foo: 1, bar: 'hi' };
// 根据 ts 的类型推论生成一个类型。此时 C 的类型为 { foo: number; bar: string; }
type C = typeof json;
// 根据已有类型生成相关新类型，此处将 A 类型的所有成员变成了可选项，相当于 type D = { x?: number; y?: string; };
type D = {
  [T in keyof A]?: A[T];
};

export type FormItemType = 'el-input' | 'z-select' | 'el-date-picker'
// 目前发现 interface 的key 只能是三种 string number symbol   keyof any
type IPlaceholderMapping = {
  [key in FormItemType]: string
}
export const placeholderMapping: IPlaceholderMapping = {
  'el-input': '请输入',
  'z-select': '请选择',
  'el-date-picker': '请选择日期'
}