This repository is based on andpor/react-native-sqlite-storage, you should install and link react-native-sqlite-storage first.
这个库是基于 andpor/react-native-sqlite-storage ，请先 install 和 link react-native-sqlite-storage
Features:
(1) use Promise | 使用Promise
(2) be based on react-native-sqlite-storage (readme) | 基于 react-native-sqlite-storage
(3) parameterized SQL | 参数化的SQL
(4) prefer generator function | 统一返回的数据结构 {res,err}
1.instantiation | 实例化
import SQLiteHelper from 'react-native-sqlite-helper';
const sqLiteHelper = new SQLiteHelper(
databaseName:string,
databaseVersion:string,
databaseDisplayName:string,
databaseSize:number);
2.open database | 连接 database
sqLiteHelper.open(); // 会返回原始的SQLite实例，可以直接执行sql
3.close database | 关闭 database
sqLiteHelper.close();
4.delete database(static) | 删除 database（静态方法）
SQLiteHelper.delete(database:string);
5.creteTable | 创建表
sqLiteHelper.createTable(tableInfo:object);
6.dropTable | 删除表
sqLiteHelper.dropTable(tableName:string);
7.insertItems | 插入数据（支持多条）
sqLiteHelper.insertItems(tableName:string,items:Array<object>);
8.deleteItem | 删除数据
sqLiteHelper.deleteItem(tableName:string,condition:object);
9.updateItem | 更新数据
sqLiteHelper.updateItem(tableName:string,item:object,condition:object);
10.selectItems | 查询数据
sqLiteHelper.selectItems(
tableName:string,
columns:Array<string>|*,
condition:object|null,
pagination?:number,
perPageNum?:number);
11.Promise resolve data | Promise返回值格式
const {res,err} = resolve_data;
res:any|'undefined' (success data,if error return 'undefined')
err:Error|'undefined' (error data, if success return 'undefined')
// use es6 async/await
async _handleSQLite() {
const sqLiteHelper = new SQLiteHelper('test.db', '1.0', 'users', 2000);
// 开启数据库
const { res: sqLite, err: err1 } = await sqLiteHelper.open();
console.log(sqLite, err1);
// 删除db：静态方法
const { res: res2, err: err2 } = await SQLiteHelper.delete('test.db');
console.log(res2, err2);
// 关闭数据库
const { res: res3, err: err3 } = await sqLiteHelper.close();
console.log(res3, err3);
// 建表
const { res: res4, err: err4 } = await sqLiteHelper.createTable({
tableName: 'people',
tableFields: [
{
columnName: 'id',
dataType: 'INTEGER PRIMARY KEY AUTOINCREMENT',
},
{
columnName: 'name',
dataType: 'varchar',
}, {
columnName: 'age',
dataType: 'varchar',
}, {
columnName: 'sex',
dataType: 'varchar',
},
],
});
console.log(res4, err4);
// 删除表
const { res: res5, err: err5 } = await sqLiteHelper.dropTable('people');
console.log(res5, err5);
// 插入数据
const userData = [
{
name: '张三',
age: '26',
sex: '男',
},
{
name: '李四',
age: '22',
sex: '女',
},
];
const { res: res6, err: err6 } = await sqLiteHelper.insertItems('people', userData);
console.log(res6, err6);
// 删除数据
const { res: res7, err: err7 } = await sqLiteHelper.deleteItem('people', { name: 'zhanggl' });
console.log(res7);
// 更改数据
const { res: res8, err: err8 } = await sqLiteHelper.updateItem('people', { name: 'zhangqi' }, { name: 'zhangqi1', age: '22' });
console.log(res8);
// 查询数据：第一页，每页5条数据
const { res: res9, err: err9 } = await sqLiteHelper.selectItems('people', '*', null, 1, 5);
console.log(res9);
// 查询所有
const { res: res10, err: err10} = await sqLiteHelper.selectItems('people', '*', null);
console.log(res10);
}