使用angular2向indexedDB添加值时出错 [英] Getting error while adding value to indexedDB using angular2
问题描述
我正在使用Angular2使用IndexedDB.为此，我正在下面的github链接. https://github.com/gilf/angular2-indexeddb
I am using IndexedDB using Angular2. For that i am following the below github link. https://github.com/gilf/angular2-indexeddb
我正在像这样创建数据库，并像这样增加价值.
I am creating db like this and adding value like this.
ngOnInit(){
let db = new AngularIndexedDB('mydb', 1);
db.createStore(1, (evt) => {
let objectStore = evt.currentTarget.result.createObjectStore(
'Userdetails', { keyPath: "id", autoIncrement: true });
objectStore.createIndex("name", "name", { unique: false });
objectStore.createIndex("email", "email", { unique: true });
});
db.add('Userdetails', { name: 'name', email: 'name@mail.com' }).then(() => {
// Do something after the value was added
console.log('fields added');
}, (error) => {
console.log('error is'+error);
});
}
但是在控制台中，我遇到这样的错误.在查询数据库之前，您需要使用createStore函数创建数据库！
But in console i am getting error like this.You need to use the createStore function to create a database before you query it!
任何人都可以告诉我我到底在哪里做错了.我对这个angular2-indexeddb非常陌生.请帮助我.
Can anyone please tell me where exactly i am doing wrong.I am very new to this angular2-indexeddb.Please help me.
推荐答案
如果我正确阅读代码，我认为您的db.add代码会被开除.
I think your code for db.add is fired to early if i'm reading the code correctly.
如果将其更改为它应该可以使用
If you change it to it should work
db.createStore(1, (evt) => {
let objectStore = evt.currentTarget.result.createObjectStore(
'Userdetails', { keyPath: "id", autoIncrement: true });
objectStore.createIndex("name", "name", { unique: false });
objectStore.createIndex("email", "email", { unique: true });
}).then(() => {
db.add('Userdetails', { name: 'name', email: 'name@mail.com' }).then(() => {
// Do something after the value was added
console.log('fields added');
}, (error) => {
console.log('error is'+error);
});
});
这篇关于使用angular2向indexedDB添加值时出错的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
