I'm trying to tell react/redux to upvote a likeCount when ADD_LIKE is called from the reducer.
However its upvoting the number for all post items
How can i do something like.
if(action.id === post.id) then do likes: state.likes + 1
That way it can only upvote for that one post only.
case ADD_LIKE:
// console.log(action.id)
return({
...state,
likes: state.likes + 1
})
Actions.js
export const postLike = (id) => {
return (dispatch) => {
// console.log(userId);
return Axios.post('/api/posts/like', {
postId: id
}).then( (like) => {
dispatch({type: ADD_LIKE, id})
// console.log('you have liked this', like)
}).catch( (err)=> {
console.log('there seem to be an error', err);
})
Full Reducer
import { ADD_LIKE, GET_LIKES_COUNT} from '../actions/';
const initialState = {
post: [],
postError: null,
posts:[],
isEditing:false,
isEditingId:null,
likes:0,
postId:null
}
export default (state = initialState, action) => {
switch (action.type) {
case GET_LIKES_COUNT:
// console.log(action.data)
return({
...state,
likes:action.data
})
case ADD_LIKE:
// console.log(action.id)
return({
...state,
likes: state.likes + 1
})
default:
return state
}
}
Like Component
import React, { Component } from 'react';
import ReactDOM from 'react-dom'
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faCoffee, faAdjust } from '@fortawesome/free-solid-svg-icons';
import {connect} from 'react-redux';
import { getLikeCount, postLike} from '../actions/';
class Like extends Component{
constructor(props){
super(props);
this.state = {
likes: null,
heart: false
}
}
// dont remove () after (id) or else infinite onClick
clickLike = (id) => () => {
this.props.postLike(id);
// toggles between css class
this.setState({
heart: !this.state.heart
})
}
render(){
return(
<div style={{float:'right', fontSize: '1.5em', color:'tomato'}} >
<i style={{ marginRight: '140px'}} className={this.state.heart ? 'fa fa-heart':'fa fa-heart-o' }>
<span style={{ marginLeft: '6px'}}>
<a href="#" onClick={this.clickLike(this.props.like)}>Like </a>
</span>
{/* gets the like counts */}
{this.props.likeCount}
</i>
</div>
)
}
}
const mapStateToProps = (state) => ({
isEditingId: state.post.isEditingId,
likeCount:state.post.likes
})
const mapDispatchToProps = (dispatch) => ({
getLikeCount: (id) => dispatch(getLikeCount(id)),
postLike: (id) => dispatch( postLike(id))
// Pass id to the DeletePost functions.
});
export default connect(mapStateToProps, mapDispatchToProps)(Like);
<Like like={id}/> post id is id and being passed in as a prop
Postitem.js
import React, { Component } from 'react';
import Paper from '@material-ui/core/Paper';
import Button from '@material-ui/core/Button';
import Typography from '@material-ui/core/Typography';
import moment from 'moment';
import Editable from './Editable';
import {connect} from 'react-redux';
import {UpdatePost, getLikeCount, postLike} from '../actions/';
import Like from './Like';
import Axios from '../Axios';
const Styles = {
myPaper: {
margin: '20px 0px',
padding: '20px'
},
button:{
marginRight:'30px'
}
}
class PostItem extends Component{
constructor(props){
super(props);
this.state = {
disabled: false,
}
}
onUpdate = (id, title) => () => {
// we need the id so expres knows what post to update, and the title being that only editing the title.
if(this.props.myTitle !== null){
const creds = {
id, title
}
this.props.UpdatePost(creds);
}
}
render(){
const {title, id, userId, removePost, createdAt, post_content, username, editForm, isEditing, editChange, myTitle, postUpdate, likes, clickLike} = this.props
return(
<div>
<Typography variant="h6" component="h3">
{/* if else teneray operator */}
{isEditing ? (
<Editable editField={myTitle ? myTitle : title} editChange={editChange}/>
): (
<div>
{title}
</div>
)}
</Typography>
<Typography component="p">
{post_content}
<h5>
by: {username}</h5>
<Typography color="textSecondary">{moment(createdAt).calendar()}</Typography>
<Like like={id}/>
</Typography>
{!isEditing ? (
<Button variant="outlined" type="submit" onClick={editForm(id)}>
Edit
</Button>
):(
// pass id, and myTitle which as we remember myTitle is the new value when updating the title
<div>
<Button
disabled={myTitle.length <= 3}
variant="outlined"
onClick={this.onUpdate(id, myTitle)}>
Update
</Button>
<Button
variant="outlined"
style={{marginLeft: '0.7%'}}
onClick={editForm(null)}>
Close
</Button>
</div>
)}
{!isEditing && (
<Button
style={{marginLeft: '0.7%'}}
variant="outlined"
color="primary"
type="submit"
onClick={removePost(id)}>
Remove
</Button>
)}
</div>
)
}
}
const mapStateToProps = (state) => ({
isEditingId: state.post.isEditingId,
})
const mapDispatchToProps = (dispatch) => ({
// pass creds which can be called anything, but i just call it credentials but it should be called something more
// specific.
UpdatePost: (creds) => dispatch(UpdatePost(creds)),
getLikeCount: (id) => dispatch(getLikeCount(id)),
postLike: (id) => dispatch( postLike(id))
// Pass id to the DeletePost functions.
});
export default connect(null, mapDispatchToProps)(PostItem);
PostList.js
import React, { Component } from 'react';
import Paper from '@material-ui/core/Paper';
import Button from '@material-ui/core/Button';
import Typography from '@material-ui/core/Typography';
import moment from 'moment';
import {connect} from 'react-redux';
import {DeletePost, getLikeCount, postLike, UpdatePost,EditChange, DisableButton} from '../actions/';
import PostItem from './PostItem';
const Styles = {
myPaper: {
margin: '20px 0px',
padding: '20px'
}
}
class PostList extends Component{
constructor(props){
super(props);
this.state ={
title: '',
}
}
// Return a new function. Otherwise the DeletePost action will be dispatch each
// time the Component rerenders.
removePost = (id) => () => {
this.props.DeletePost(id);
}
onChange = (e) => {
e.preventDefault();
this.setState({
title: e.target.value
})
}
formEditing = (id) => ()=> {;
this.props.EditChange(id);
}
getLikes = (id) => {
// console.log(id);
this.props.getLikeCount(id)
console.log(this.props.likeCount)
}
render(){
const {posts} = this.props;
return (
<div>
{posts.map((post, i) => (
<Paper key={post.id} style={Styles.myPaper}>
{this.getLikes(post.id)}
{/* {...post} prevents us from writing all of the properties out */}
<PostItem
myTitle={this.state.title}
editChange={this.onChange}
editForm={this.formEditing}
isEditing={this.props.isEditingId === post.id}
removePost={this.removePost}
{...post}
/>
</Paper>
))}
</div>
)
}
}
const mapStateToProps = (state) => ({
isEditingId: state.post.isEditingId,
})
const mapDispatchToProps = (dispatch) => ({
// pass creds which can be called anything, but i just call it credentials but it should be called something more
// specific.
EditChange: (id) => dispatch(EditChange(id)),
UpdatePost: (creds) => dispatch(UpdatePost(creds)),
getLikeCount: (id) => dispatch(getLikeCount(id)),
postLike: (id) => dispatch( postLike(id)),
// Pass id to the DeletePost functions.
DeletePost: (id) => dispatch(DeletePost(id))
});
export default connect(mapStateToProps, mapDispatchToProps)(PostList);
Edit
Actions.js
export const getLikeCount = (id) => {
return (dispatch, getState) => {
return Axios.get(`/api/posts/likes/count/${id}`)
.then( (res) => {
const data = res.data
console.log(data); // logs data and i can see an array
dispatch({type: GET_LIKES_COUNT, data})
})
}
}
{this.props.likeCount} logs
ive tried doing this
case ADD_LIKE:
return {
...state,
posts: state.posts.map(post => {
if (post.id === action.id) {
return {
...post,
likes: post.likes + 1
}
} else return post
})
};
but it does not update the like count for some reason.
postsarray to increment the number of likes for that particular post.