Can't get a react component to render using routing - javascript

I am new to react and I'm trying to render a component called {Chat} in a container using routing, but it doesn't give any output (or errors). Here's my code:
import React from "react";
import { Link } from "react-router-dom";
import Axios, { baseURL } from "../../services/config";
import "./Join.css";
import convIcon from "../../assets/selectIcon.png";
import Chat from "../Chat/Chat";
render() {
const { name, room, groups } = this.state;
const { match } = this.props;
const groupsList =
groups.length > 0 &&
groups.map(group => {
return (
<Link className="chatLink" to={`${match.url}/joinChat/chat`}>
<div className="chatList">
<img src={convIcon} title="logo" className="chatIcon" alt="" />
<h2 className="groupName">
{group.name}
<span className="timestamp">2:30 PM</span>
</h2>
<span className="lastMsg">Last message text</span>
</div>
</Link>
);
});
return (
<div className="joinOuterContainer">
<div className="joinInnerContainer">
<h1 className="heading">Conversations</h1>
<div className="chatListContainer">{groupsList}</div>
</div>
<div>
<Route path={`${match.url}/joinChat/Chat`} component={Chat}/>
</div>
</div>
);
}

Related

Swapped useState to useSelector(redux) and it's not working anymore

build this part of the code with useState initially and everything worked perfectly but I need to share this state with my main component (no relationships between those two) and decided to use Redux but def something is wrong, any ideas?
Here's the console error:
MUI: The value provided to the Tabs component is invalid.
None of the Tabs' children match with "-1".
You can provide one of the following values: 0, 1, 2.
import { React } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import '../../css/SideBar.css';
import { UilSignOutAlt } from '#iconscout/react-unicons';
import Logo from '../../../../assets/img/companyLogo.jpg';
import { SidebarData } from '../../Data/Data';
import { setDashboard } from '../../../../app/actions';
function SideBar() {
const selected = useSelector((state) => state.dashboard);
const dispatch = useDispatch();
return (
<div className="Sidebar">
{/* logo */}
<div className="logo">
<img src={Logo} alt="logo" />
<span>Company Name</span>
</div>
{/* menu */}
<div className="menu">
{SidebarData.map((item, index) => (
/* eslint-disable */
<div
role='menu'
className={selected === index ? 'menuItem active' : 'menuItem'}
key={index}
onClick={() => dispatch(setDashboard(index))}
onKeyDown={() => dispatch(setDashboard(index))}
>
<item.icon />
<span>{item.heading}</span>
</div>
))}
<div className='menuItem'>
<UilSignOutAlt />
</div>
</div>
</div>
);
}
export default SideBar;

pass in props into component to render

// Warning: Cannot read properties of undefined (reading 'params')
// im try to get movie_id from movielist.js to view single movie on movie.js onclicking view review
// basically my error is from inability to pass the props into movie.js
//in nav/index.js
import { BrowserRouter as Router, Routes, Route, useParams} from "react-router-dom";
import Navbar from './navbar';
import MovieList from "../components/movie-list"
import Movie from "../components/movie"
const Nav = () => {
return (
<Router>
<Navbar/>
<Routes>
<Route exact path={'/'} element={<MovieList/>}/>
<Route path='/movies/:id/' element={<Movie props={useParams()} />} />
</Routes>
</Router>
)}
//in movielist.js
import React, {useState, useEffect} from 'react'
import MovieDataService from "../services/movie"
import { Link } from 'react-router-dom'
const MovieList = () => {
....
return (
<div>
....
<div>
{movies.map((movie)=>{
return(
<div className="card" key={movie._id}>
<div className="card-container">
<div className='card-img'>
<img src={movie.poster+"/100px180"} alt=""/>
</div>
<div className="card-body">
<h1>{movie.title}</h1>
<h2>Rating:{movie.rated}</h2>
<p>{movie.plot}</p>
<Link to={"/movies/"+movie._id}>View Review</Link>
</div>
</div>
</div>
);
})}
</div>
</div>
)
}
// in movie.js
import React, { useState, useEffect } from 'react'
import MovieDataService from '../services/movie'
import { Link } from 'react-router-dom'
const Movie = (props) => {
useEffect(()=>{
getMovie(props.match.params.id)
},[props.match.params.id]) //won't call getMovie Multiple times unless id is updated.
return (
<div>
<div className="card-container">
<div className='card-img'>
<img src={movie.poster+"/100px250"} alt=""/>
</div>
<div className="card-body">
<h1>{movie.title}</h1>
<p>{movie.plot}</p>
{props.user && <Link to={"/movies/"+props.match.params.id+"/review"}>Add Review</Link>
}
</div>
</div>
);
})}
</div>
</div>
)
}
Use useParams() hook to get url params.
const {id} = useParams()
useEffect(()=>{
getMovie(id)
},[id])
replace props.match.params.id with id everywhere

Deleting component with api only disappears after refresh Reactjs

I have a spring boot api with crud functionalities, on my react frontend I have this, which is a dashboard component and inside i am rendering a list of ProjectItem components and passing them to the dashboard component as props.
When I delete a project I'd like it to immediately remove the project from the component without having to refresh for it to happen.
Since I am passing the props down to my Dashboard component I am a bit confused on how to achieve this.
ProjectItem.js
BackendService is a service class with axios calls for the crud operations
import React, { useEffect, useState } from 'react'
import BackendService from '../services/BackendService';
import { Link } from 'react-router-dom';
import { useParams } from 'react-router';
const ProjectItem = ({projectName, projectIdentifier, description}) => {
const onDeleteClick = (id) => {
if (window.confirm("Are you sure you want to delete this project?")) {
BackendService.deleteProject(id)
.then()
.catch((err) => {
console.log(err.response);
});
alert("Project with ID " + id + " was deleted successfully");
}
};
return (
<div className="container">
<div className="card card-body bg-light mb-3">
<div className="row">
<div className="col-2">
<span className="mx-auto">{projectIdentifier}</span>
</div>
<div className="col-lg-6 col-md-4 col-8">
<h3>{projectName}</h3>
<p>{description}</p>
</div>
<div className="col-md-4 d-none d-lg-block">
<ul className="list-group">
<Link to="">
<li className="list-group-item update">
<i className="fa fa-edit pr-1"> Update Project Info</i>
</li>
</Link>
<button
className="list-group-item delete"
onClick={() => onDeleteClick(projectIdentifier)}
>
<i className="fa fa-minus-circle pr-1"> Delete Project</i>
</button>
</ul>
</div>
</div>
</div>
</div>
);
};
export default ProjectItem;
Dashboard.js
Where the ProjectItem components are rendered
import React, { useEffect, useState } from 'react'
import { Link } from 'react-router-dom'
import BackendService from '../services/BackendService'
import AppNavbar from './AppNavbar'
import ProjectItem from './ProjectItem'
const Dashboard = () => {
const [project, setProject] = useState({
projectName: "",
projectIdentifier: "",
description: "",
});
useEffect(() => {
BackendService.getProjects().then((res) => {
setProject(res.data);
});
}, []);
return (
<div className="projects">
<AppNavbar />
<div className="container">
<div className="row">
<div className="col-md-12">
<h1 className="display-4 text-center">Projects</h1>
<Link to="/addProject">
<button className="btn btn-warning">Create Project</button>
</Link>
{project &&
Object.values(project).map((prj) => {
return (
<div>
<ProjectItem key={prj.id}
projectName={prj.projectName}
projectIdentifier={prj.projectIdentifier}
description={prj.description}
/>
</div>
);
})}
<hr />
</div>
</div>
</div>
</div>
);
};
export default Dashboard
If you want to remove item without refresh the page then you have to call setProject and set it to new project list after BackendService.deleteProject request done in onDeleteClick.
https://reactjs.org/docs/state-and-lifecycle.html

Deleting multiple items in checkboxes at once using REACT

I'm trying to delete multiple items at once for checkboxes in REACT, but the code does not seem to delete the items being checked.
Here's my approach to doing this. I made a function in tasks.jsx file
called add_ids_to_be_deleted to append the id that was being checked
in the checkbox to an array of ids to be deleted called list_of_ids.
This function is called in the child component in priorityLists.jsx.
When the user clicks the delete button, I created a useEffect to
filter out all the items in toDo whose ids are not included in the ids
to be deleted.
The problem is it keeps deleting the last item whenever I check a checkbox regardless of the order.
For example, I add 3 checkboxes and
check the first checkbox to delete it. Instead of the first checkbox
being deleted, the last item is deleted even though it wasn't being
checked.
tasks.jsx
import React, { useState, useEffect } from 'react';
import { Delete, Refresh, Add } from '../components/Actions';
import { Header } from '../components/Header';
import ToDoList from '../components/TaskList';
import { FontAwesomeIcon } from '#fortawesome/react-fontawesome';
import { faPlus, faTrash } from '#fortawesome/free-solid-svg-icons';
import { v4 as uuidv4 } from 'uuid';
function Task() {
const [toDo, setToDo] = useState([]);
const [idsToRefresh, setIdsToRefresh] = useState([]);
const [list_of_Ids, setIds] = useState([]);
const [filter_now, setFilterNow] = useState(false);
function addToDos() {
const id = uuidv4();
setToDo(
toDo.concat({
_isKey: id,
_checked: false,
value: <ToDoList _onDelete={add_Ids_ToBe_Deleted} _key={id} />
})
);
setIdsToRefresh(idsToRefresh.concat(id));
}
function switchNow() {
if (!filter_now) {
setFilterNow(true);
} else {
setFilterNow(false);
}
}
useEffect(() => {
if (toDo[0] !== undefined) {
setToDo(
toDo.filter(item => {
return !list_of_Ids.includes(item._isKey);
})
);
}
}, [filter_now]);
function add_Ids_ToBe_Deleted(_id_ToBe_Deleted) {
setIds(item => [...item, _id_ToBe_Deleted]);
}
function refresh() {
setToDo(
toDo.filter(item => {
return !idsToRefresh.includes(item._isKey);
})
);
}
return (
<div className="main-content">
<div className="container-fluid">
<div className="row underline">
<div className="col">
<div className="row">
<div className="col-3 pt-2">
<Refresh _refresh={refresh} />
</div>
<div className="col-6 text-center">
<Header header={'Tasks'} />
</div>
<div className="col-3 pt-2">
<button className="float-right">
<FontAwesomeIcon
onClick={switchNow}
icon={faTrash}
size="2x"
/>
</button>
</div>
</div>
</div>
</div>
<div className="row">
<div className="col">
{toDo.map(item => {
return (
<div>
<ul>
<li>{item.value}</li>
</ul>
</div>
);
})}
</div>
</div>
<div className="row">
<div className="col pr-4">
<button onClick={addToDos} className="float-right" name="add">
<FontAwesomeIcon icon={faPlus} size="2x" />
</button>
</div>
</div>
</div>
</div>
);
}
export default Task;
Tasklist.jsx
import React from 'react';
import { PriorityLists } from '../components/PriorityLists';
import { Priority } from './Actions';
function ToDoList(props) {
return (
<PriorityLists
_onDelete={props._onDelete}
keys={props._key}
name="toDoList"
>
<Priority />
</PriorityLists>
);
}
export default ToDoList;
Prioritylists.jsx
import React, { useState, useEffect } from 'react';
import { Priority } from './Actions';
function PriorityLists(props) {
return (
<form>
<div className="input-group mb-3">
<div className="input-group-prepend">
<div className="input-group-text">
<input
is_checked={false}
unique_Key={props.keys}
onClick={e =>
props._onDelete(
e.target.attributes.getNamedItem('unique_Key').value
)
}
id="check-item"
type="checkbox"
aria-label="Checkbox for following text input"
/>
</div>
</div>
<textarea class="form-control" rows="1" name={props.name}></textarea>
{props.children}
</div>
</form>
);
}
export { PriorityLists };

How can I use nested routes with props for a child component

I'm building an react app where I have a feed component and the feed component consists of array of post components. The post component contains a link in it for viewing the full post component. I'm not able to pass the respective props to the full post component. I'm not able to do a nested route for the fullpost component.
this is my layout component
import React, { Component } from "react";
import Header from "../Header/Header";
import classes from "./Layout.css";
import { Route, Switch } from "react-router-dom";
import FullPost from "../Feed/FullPost/FullPost";
import axios from "axios";
import Feed from "../Feed/Feed";
class Layout extends Component {
state = {
users: [],
};
componentDidMount() {
axios
.get("https://goodwill-60d8a.firebaseio.com/Users.json")
.then((response) => {
this.setState({ users: response.data });
});
}
render() {
console.log(this.state.users);
return (
<div className={classes.main}>
<div>
<Header />
</div>
<div className={classes.content}>
<Switch>
<Route
path="/"
exact
render={() => <Feed users={this.state.users} />}
/>
<Route path="/fullpost" exact render={() => <FullPost />} />
</Switch>
</div>
</div>
);
}
}
export default Layout;
FEED component
import React from "react";
import Post from "./Post/Post";
import classes from "./Feed.css";
const feed = (props) => {
const feedItems = Object.keys(props.users).map((key) => ({
id: key,
...props.users[key],
}));
return (
<div className={classes.feed}>
{feedItems.map((items) => (
<Post
key={items.id}
profilename={items.profileName}
profilepic={items.profilePic}
timestamp={items.timeStamp}
contentimage={items.contentImage}
contenttext={items.contentText}
trend={items.trend}
></Post>
))}
</div>
);
};
export default feed;
Post component
import React from "react";
import classes from "./Post.css";
import ShareButton from "../../UI/ShareButton/ShareButton";
import { Link } from "react-router-dom";
const post = (props) => {
return (
<div className={classes.post}>
<div className={classes.header}>
<div className={classes.profileimage}>
<img className={classes.pic} src={props.profilepic} alt="" />
</div>
<div className={classes.name}>{props.profilename}</div>
<div className={classes.timestamp}>{props.timestamp}</div>
</div>
<div className={classes.container}>
<div className={classes.image}>
<img src={props.contentimage} alt="" />
</div>
<div>
<div className={classes.text}>
<span>{props.contenttext}</span>
</div>
<div className={classes.fullpost}>
<Link to="/fullpost" {...props}>
See Full Post
</Link>
</div>
</div>
</div>
<div className={classes.footer}>
<div className={classes.trend}>
<span>{props.trend}</span>
</div>
<ShareButton />
</div>
</div>
);
};
export default post;
Full Post component
import React from "react";
import classes from "./FullPost.css";
import pic from "../../../Assets/Images/self.jpg";
import { Link } from "react-router-dom";
const fullPost = (props) => {
return (
<div className={classes.fullpost_container}>
<div className={classes.photo_container}>
<img src={props.profilepic} alt=" " />
</div>
<div className={classes.sidebar}>
<div className={classes.profileimage}>
<img src={props.profilePic} alt="" />
</div>
<div className={classes.profilename}>Tony Kroos</div>
<div className={classes.timestamp}>3 Hours Ago</div>
</div>
<div className={classes.feedlink}>
<Link to="/" className={classes.feedlink_text}>
See more posts
</Link>
</div>
</div>
);
};
export default fullPost;

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