# db-reader

**Repository Path**: wanghaibo921231/db-reader

## Basic Information

- **Project Name**: db-reader
- **Description**: indexDb工具
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 2
- **Forks**: 0
- **Created**: 2022-01-02
- **Last Updated**: 2022-03-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# DB-READER

## indexDB 操作库

### 目录

#### 1. 安装

#### 2. 快速使用

### 安装

```
npm i db-reader
```

### 快速使用

#### 创建模型文件`models/user.ts;`以及`models/goods.ts`

user.ts

```
import { Model } from "db-reader";
const columns: Column[] = [
  {
    name: "id",
    unique: true,
    increment: true,
  },
  {
    name: "userName",
    comment: "用户名",
  },
  {
    name: "password",
    comment: "密码",
  },
];
export default class User extends Model {
  _table: string = "user";
  columns: Column[] = columns;
  static instance: User = null;
  constructor() {
    super();
    if (User.instance) {
      return User.instance;
    }
    User.instance = this;
  }
}
```

goods.ts

```
import { Model } from "db-reader";
const columns: Column[] = [
  {
    name: "id",
    unique: true,
    increment: true,
  },
  {
    name: "userName",
    unique: true,
    comment: "用户名",
  },
  {
    name: "password",
    comment: "密码",
  },
];
export default class Goods extends Model {
  _table: string = "goods";
  columns: Column[] = columns;
  static instance: Goods = null;
  constructor() {
    super();
    if (Goods.instance) {
      return Goods.instance;
    }
    Goods.instance = this;
  }
}
```

#### 创建`main.ts`

```
import {DB} from 'db-reader'
import UserModel from "./models/user";
import GoodsModel from "./models/goods";
const db = new DB('test',1,[new UserModel(),new GoodsModel()])
db.connect(()=>{
  const user = new UserModel();
  const data = [];
  for (let i = 0; i < 100; i++) {
    data.push({
      userName: "fff",
      password: "aaa",
    });
  }
  user.insertAll(data).then((res) => {
    console.log(res);
    user.findList().then((res: object[]) => {
      console.log(res.length,'@@@');
    });
  });
})
```

#### 运行程序

打开调试工具可以看到 Application（应用）的 IndexDB 里有刚才的数据库 test 打开之后看到了 user 和 goods 表