【发布时间】:2021-04-09 05:46:32
【问题描述】:
我正在获取数据以将其填充到表单上,但是当我尝试编辑输入中的数据时,输入值将返回其原始值,这是因为 get 方法在组件上无限呈现.我真的需要你的眼睛看到错过或错过的东西。先谢谢大家了。
获取方法
import * as api from '../api/profile';
export const getProfile = () => async (dispatch) => {
try {
const { data } = await api.fetchProfile();
dispatch({ type: 'FETCH_ALL', payload: data });
} catch (error) {
console.log(error.message);
}
}
配置文件容器
import React, { useState, useEffect } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import { getProfile } from '../../../actions/profile'; //fetch method
import Profile from './Profile';
function Index() {
const dispatch = useDispatch();
const posts = useSelector((state) => state.posts);
const currentId = useState(null);
useEffect(() => {
dispatch(getProfile());
}, [currentId, dispatch]);
return (
<div className="custom-container">
{posts.map((profile) => (
<div key={profile._id}>
<Profile profile={profile} currentId={currentId} />
</div>
))}
</div>
);
}
export default Index;
个人资料表单组件
import './Profile.css';
import { React, useState, useEffect } from 'react';
import Button from 'react-bootstrap/Button';
import { TextField } from '@material-ui/core';
import { useDispatch, useSelector } from 'react-redux';
import { updateProfile } from '../../../actions/profile';
const Profile = ({ profile, currentId }) => {
const dispatch = useDispatch();
currentId = profile._id;
const [postData, setPostData] = useState(
{
profile: {
name: "",
description: "",
email: "",
number: "",
}
}
);
const post = useSelector((state) => currentId ? state.posts.find((p) => p._id === currentId) : null);
useEffect(() => {
if(post) setPostData(post);
}, [post])
const handleSubmit = (e) => {
e.preventDefault();
if(currentId) {
dispatch(updateProfile(currentId, postData));
}
}
return (
<form autoComplete="off" noValidate className="form" onSubmit={handleSubmit}>
<TextField
id="name"
name="name"
className="name"
label="Full Name"
variant="outlined"
value={postData.profile.name}
onChange={(e) => setPostData({...postData, profile: {...postData.profile, name: e.target.value}})}
/>
<TextField
id="outlined-multiline-static"
label="Multiline"
multiline
rows={4}
variant="outlined"
size="small"
className="mb-3"
name="description"
value={postData.profile.description}
onChange={(e) => setPostData({...postData, profile: {...postData.profile, description: e.target.value}})}
fullWidth
/>
<TextField
id="email"
label="Email"
variant="outlined"
size="small"
className="mb-3"
name="email"
value={postData.profile.email}
onChange={(e) => setPostData({...postData, profile: {...postData.profile, email: e.target.value}})}
/>
<TextField
id="phone"
label="Phone Number"
variant="outlined"
size="small"
name="phone"
value={postData.profile.number}
onChange={(e) => setPostData({...postData, profile: {...postData.profile, number: e.target.value}})}
/>
<Button variant="light" type="submit" className="Save">Save</Button>
</form>
);
}
export default Profile;
【问题讨论】:
-
您能否发布您的 getProfile 操作?
-
useState的正确使用方式应该是const [currentId, setCurrentId] = useState(null); -
@jossefaz 我添加了。请检查。
-
@bcjohn 让我试试
-
正如@bcjohn 指出的那样:您传递了currentId,它是一个数组,因为它是一个值类型......这不起作用。不确定这是您问题的根源,但我也会检查一下