I am a beginner in React js and I'm trying to implement Context Provider in React js. But while I'm not getting the perfect output.
I am storing contact info in context.js which will act as Context Provider and in App.js I imported it in App.js then in Contacts.js I Consumed the Consumer and got the value but still, I'm getting the blank page and I'm not sure why I cannot bind the contact component in Context provider
Context.js
import React, {Component} from 'react';
const Context = React.createContext();
export class Provider extends Component {
state = {
contacts: [{
id: 1,
name: "dasd B",
email: "asdas#gmail.com",
phone: "dsadas"
}
};
render() {
debugger
return (
<Context.Provider value={this.state}>
{this.props.childern}
</Context.Provider>
);
}
}
export const Consumer = Context.Consumer;
App.js
import React, { Component } from 'react';
import Header from './components/Header';
import Contacts from './components/Contacts'
import 'bootstrap/dist/css/bootstrap.min.css';
import { Provider } from './Context'
class App extends Component {
render() {
return (
<Provider>
<div className="App">
<div className="container">
<Contacts />
</div>
</div>
</Provider>
);
}
}
export default App;
Contacts.js
import React, { Component } from 'react'
import Contact from './Contact';
import { Consumer } from '../Context';
class Contacts extends Component {
deleteContact = id => {
const { contacts } = this.state;
const newContacts = contacts.filter(contact => contact.id!== id);
this.setState({
contacts: newContacts
});
};
render() {
debugger
return(
<Consumer>
{value => {
const { contacts } = value;
return (
<React.Fragment >
{contacts.map(contact => (
<Contact
key = {contact.id}
contact={contact}
deleteClickHandler = {this.deleteContact.bind(this, contact.id)}>
</Contact>
))}
</React.Fragment>
);
}}
</Consumer>
);
}
}
export default Contacts;
Contact.js
import React, { Component } from 'react'
import PropTypes from 'prop-types'
class Contact extends Component {
state = {
showContactinfo : false
};
onDeleteClick = () => {
this.props.deleteClickHandler();
}
onEditClick() {
}
render() {
const { name, email, phone } =this.props.contact;
const { showContactinfo } = this.state;
return (
<div className="card card-body mb-3">
<h4>{name}
{showContactinfo ? (
<div className="float-right">
<i
onClick= {this.onEditClick}
style={{cursor: 'pointer', fontSize: 'medium'}}
className="fas fa-edit mr-3"></i>
<i
onClick= {this.onDeleteClick}
style={{cursor: 'pointer', fontSize: 'medium'}}
className="fa fa-trash-alt"></i>
</div>):
<i className="fa fa-sort-down float-right"
style={{cursor: 'pointer'}}
onClick={() =>
this.setState({ showContactinfo: !this.state.showContactinfo})}></i>}
</h4>
{showContactinfo ? (
<ul className="list-group">
<li className="list-group-item">Email: {email}</li>
<li className="list-group-item">Phone: {phone}</li>
</ul>) : null}
</div>
)
}
}
Contact.propTypes = {
contact: PropTypes.object.isRequired,
deleteClickHandler: PropTypes.func.isRequired
}
export default Contact;
Related
I have a react app that i've made and it is working great in storybook with a mock for data retrieving.
When I switch to yarn start to check the app without mock, the page is loading some components but not the main component (PostPageCardContainer) which is only displaying "loading" (see the code below).
The component which load properly make api calls like this in ComponentDidMount :
axios.get("/api/blog/categories/").then((res) => {
const categories = res.data.results;
this.setState({
categories,
loading: false });
and
axios.get("/api/blog/tags/").then((res) => {
const tags = res.data.results;
this.setState({
tags,
loading: false });
}); }
The components that dont load make an api call like this in COmponentDidMount:
PostPageCard.js:
const pk = this.props.match.params.id;
axios.get(`/api/cms/pages/${pk}/`).then((res) => {
const post = res.data;
this.setState({
post,
loading: false });
}) }
PostDetail.js
axios.get(`/api/cms/pages/${this.props.postPk}/`).then((res) => {
this.setState({
data: res.data,
loading: false
}); });
In the browser console, when i try to load the page i get :
printWarnings # webpackHotDevClient.js:138
:3000/api/cms/pages/6/:1
Failed to load resource: the server responded with a status of 404 (Not Found)
And when i hover the mouse on the link i get http://localhost:3000/api/cms/pages/6.
In fact the react page is being served on localhost:3000 but I have put "proxy": "http://172.20.128.2:8000" in packages.json so my api call go on this adress.
How come some api calls go on the good adress and others dont?
The issue is similar to this : How to set proxy when using axios to send requests? and this Axios not using proxy setting with https and this axios request ignores my proxy and even when hardcoded I can't fetch any data but there is not really a solution except using fetch or restarting the machine
I ve tried to hardcode the proxy in the api call like axios.get(http://172.20.128.2:8000/api/cms/pages/${this.props.postPk}` and removed the proxy line from package.json but then nothing is loading properly...
Here is some sample of the code:
index.js
import React from "react";
import ReactDOM from "react-dom";
import { BrowserRouter } from "react-router-dom";
import App from "./components/App";
import 'bootstrap/dist/css/bootstrap.css';
import { MemoryRouter } from "react-router-dom";
ReactDOM.render(
<React.StrictMode>
<MemoryRouter initialEntries={["/"]}>
<App/>
</MemoryRouter>
</React.StrictMode>,
document.getElementById("root")
);
App.js
import React from "react";
import { Route, Switch } from "react-router";
import { Container, Row } from "react-bootstrap";
import { BlogPage } from "./BlogPage";
import { PostPage } from "./PostPage";
function App() { return (
<Switch>
<Route path="/post/:id([\d]+)" component={PostPage}/>
<Route path="/tag/:tag/:page([\d]+)?" component={BlogPage}/>
<Route path="/:page([\d]+)?" component={BlogPage}/>
<Route
path="*"
component={() => (
<Container> <Row>
<h1>404</h1> </Row>
</Container> )}
/> </Switch>
); }
export default App;
BlogPage.js
import React from "react";
import { Container, Row } from "react-bootstrap";
import { TopNav } from "./TopNav";
import { Footer } from "./Footer";
import { PostPageCardContainer } from "./PostPageCardContainer";
import { SideBar } from "./SideBar";
class BlogPage extends React.Component { render() {
return (
<div>
<TopNav />
<Container>
<Row>
<PostPageCardContainer {...this.props} />
<SideBar />
</Row>
</Container>
<Footer />
</div> );
} }
export { BlogPage };
Postpagecardcontainer.js
import React from "react";
import axios from "axios";
import { Col } from "react-bootstrap";
import { Link } from "react-router-dom";
import { generatePath } from "react-router";
import _ from 'lodash';
import { PostPageCard } from "./PostPageCard";
class PostPageCardContainer extends React.Component {
constructor(props) {
super(props); this.state = {
posts: [],
pageCount: 0,
pageStep: 2,
};
this.getPosts = this.getPosts.bind(this);
}
componentDidMount() {
this.getPosts();
}
componentDidUpdate(prevProps) {
if (prevProps.location !== this.props.location) {
this.getPosts(); }
}
getCurPage() {
// return the page number from the url
const page = this.props.match.params.page;
return page === undefined ? 1 : parseInt(page);
}
getPrePageUrl() {
const target = _.clone(this.props.match.params);
target.page = this.getCurPage() - 1;
return generatePath(this.props.match.path, target);
}
getNextPageUrl() {
const target = _.clone(this.props.match.params);
target.page = this.getCurPage() + 1;
return generatePath(this.props.match.path, target);
}
getPosts() {
let category = this.props.match.params.category === undefined ? "*" : this.props.match.params.category;
let tag = this.props.match.params.tag === undefined ? "*" : this.props.match.params.tag;
let offset = (this.getCurPage() - 1) * this.state.pageStep;
const url = `/api/blog/posts/?limit=${this.state.pageStep}&offset=${offset}&category=${category}&tag=${tag}`;
axios.get( url).then((res) => {
const posts = res.data.results;
this.setState({
posts,
pageCount: Math.ceil(parseInt(res.data.count) / this.state.pageStep),
});
});
}
render() {
return (
<Col md={8}> {this.state.posts.map((post) => (
<PostPageCard postPk={post.id} key={post.id} /> ))}
<nav aria-label="Page navigation example">
<ul className="pagination">
<li className={
this.getCurPage() <= 1 ? "page-item disabled" : "page-item" }>
<Link to={this.getPrePageUrl()}
className="page-link" >
Previous
</Link>
</li>
<li className={this.getCurPage() >= this.state.pageCount ? "page-item disabled" : "page-item" }>
<Link to={this.getNextPageUrl()}
className="page-link" >
Next
</Link>
</li>
</ul>
</nav>
</Col>
);
}
}
export { PostPageCardContainer };
PostPage.js
import React from "react";
import { Container, Row } from "react-bootstrap";
import { TopNav } from "./TopNav";
import { Footer } from "./Footer";
import { SideBar } from "./SideBar";
import { PostDetail } from "./PostDetail";
class PostPage extends React.Component { render() {
return ( <div>
<TopNav/> <Container>
<Row>
<PostDetail {...this.props} /> <SideBar/>
</Row> </Container> <Footer/>
</div> );
} }
export { PostPage };
PostDetail.js
import React from "react";
import axios from "axios";
import { StreamField } from "./StreamField/StreamField";
class PostDetail extends React.Component {
constructor(props) {
super(props); this.state = {
post: [],
loading: true, };
}
componentDidMount() {
const pk = this.props.match.params.id;
axios.get(`/api/cms/pages/${pk}/`).then((res) => {
const post = res.data;
this.setState({
post,
loading: false });
}) }
render() {
if (!this.state.loading) {
const post = this.state.post;
return (
<div className="col-md-8">
<img src={post.header_image_url.url} className="img-fluid rounded" alt=""/>
<hr />
<h1>{post.title}</h1>
<hr />
<StreamField value={post.body} />
</div> );
}
else {
return <div className="col-md-8">Loading...</div>;
}
}
}
export { PostDetail };
PostPageCard.js
import React from "react";
import { Link } from "react-router-dom";
import axios from "axios";
class PostPageCard extends React.Component {
constructor(props) {
super(props); this.state = {
data: null,
loading: true,
};
}
componentDidMount() {
axios.get(`/api/cms/pages/${this.props.postPk}/`).then((res) => {
this.setState({
data: res.data,
loading: false
}); });
}
renderPost(data) {
const dateStr = new Date(data.pub_date).toLocaleString();
return (
<div className="card mb-4">
<Link to={`/post/${data.id}`}> <img src={data.header_image_url.url} className="card-img-top" alt=""/> </Link>
<div className="card-body">
<h2 className="card-title">
<Link to={`/post/${data.id}`}>{data.title}</Link>
</h2>
<p className="card-text">{data.excerpt}</p>
<Link to={`/post/${data.id}`} className="btn btn-primary">Read More → </Link>
</div>
<div className="card-footer text-muted">Posted on {dateStr}
</div>
</div>
); }
render() {
if (this.state.loading) {
return 'Loading...'; }
else{
return this.renderPost(this.state.data); }
} }
export { PostPageCard };
how to add an action when the add button is clicked then the item will display the product?
This code does not display the product when clicked
I've been fiddling with it but it's still an error, who knows, someone here can help me and fix the code and explain it
cartAction.js
import {ADD_TO_CART} from './ActionType';
export const addToCart = (items) =>{
return{
type: ADD_TO_CART,
items //I'm confused about what to do in the action payload here
}
}
cartReducer.js
import ImgT from './images/image-product-1-thumbnail.jpg';
import {ADD_TO_CART} from './ActionType';
const initState = {
items: [
{id:1,title:'title',
brand:cc',
images:ImgT,
desc:'helo world',
price:125.00}
],addItems:[],
total:0
}
const cartReducer= (state = initState,action)=>{
if(action.type === ADD_TO_CART){
return {...state, addItems:state.addItems} //I'm confused about what to do in the action payload here
}
return state
}
export default cartReducer;
cart.js
import React, { Component } from 'react';
import { connect } from 'react-redux';
class Cart extends Component {
render() {
return (
<div>
{this.props.Items.map(item =>{
<div key={item.id}>
{/* <img src={item.images} /> */}
<p>{item.title}</p>
<h4>brand: {item.brand}</h4>
<p>{item.price}</p>
</div>
})
}
</div>
);
}
}
const mapToProps = (state ) =>{
return{
Items:state.addItems}
}
export default connect(mapToProps)(Cart);
Home.js
import React, { Component } from 'react';
import { connect } from 'react-redux';
import Cart from './Cart';
import {addToCart} from './cartAction';
class Home extends Component{
handleClick = () =>{
this.props.addToCart()
}
render(){
let item = this.props.items.map(item =>{
return(
<div className='card' key={item}>
<img style={{width:'10rem'}} src={item.images}/>
<p className='card-title '>{item.title}</p>
<h2 className='card-title fs-4'>{item.brand}</h2>
<button onClick={() => this.handleClick()} className='btn btn-primary'>Add to cart</button>
<h3 className='fs-5'>{item.price}</h3>
</div>
)
})
return(
<div className="container">
<h3>Home</h3>
{item}
<Cart/>
</div>
)
}
}
const mapToProps = (state) => {
return{
items:state.items,
}
}
const mapDispatchToProps = (dispatch) => {
return{
addToCart: () => dispatch(addToCart())}
}
export default connect(mapToProps,mapDispatchToProps)(Home);
I am having issues managing the state of my navbar using useContext. Atm my app renders the menu items as soon as the menu toggle. I want this event to happen only onClick, also the button does not log the console.log message, it works only when I click directly on the link item ex:home.
So I have 2 questions.
How do I manage my navbar state to show how to hide the menu items without having to create a new component for it?
How do I fix my click event for it be triggered on either the menu button itself or/and menu items?
Below you will code snippets for App.js, Layout.js, ThemeContext.js, useTheme.js, useToggle.js, ToggleContext.js and the Navbar where the toggle context is used.
I would really appreciate some help here guys, I am junior and really kind of stuck here.
Thanks in advance to you all.
App.js
//import { data } from '../../SkillData';
import Header from './Header';
import Navbar from './Navbar';
import Skills from './Skills';
import Layout from './Layout';
function App () {
return (
<Layout startingTheme="light" startingToggle={"show"}>
<div>
<Navbar />
<Header />
<Skills />
</div>
</Layout>
);
}
export default App;
Layout.js
import React, { useContext } from "react";
import { ThemeContext, ThemeProvider } from "../contexts/ThemeContext";
import { ToggleContext, ToggleProvider } from "../contexts/ToggleContext";
function Layout ({startingTheme, startingToggle, children}) {
return (
<>
<ThemeProvider startingTheme={startingTheme} >
<ToggleProvider startingToggle={startingToggle}>
<LayoutNoToggleProvider>
</LayoutNoToggleProvider>
</ToggleProvider>
<LayoutNoThemeProvider >{children}</LayoutNoThemeProvider>
</ThemeProvider>
</>
);
}
function LayoutNoToggleProvider ({children}) {
const toggle = useContext(ToggleContext);
return (
<div className={
toggle === false ? "navbar navbar-collapsed" : "navbar navbar-collapse show"
}>
{children}
</div>
)
}
function LayoutNoThemeProvider ({ children }) {
const {theme} = useContext(ThemeContext);
return (
<div className={
theme === "light" ?
"container-fluid bg-white" :
"container-fluid bg-dark"
}>
{children}
</div>
);
}
export default Layout;
ThemeContext
import React, { createContext} from "react";
import useTheme from "../hooks/useTheme";
export const ThemeContext = createContext();
function ThemeProvider ({children, startingTheme}) {
const { theme, setTheme } = useTheme(startingTheme);
return (
<ThemeContext.Provider value={
{theme, setTheme}
}>
{children}
</ThemeContext.Provider>
);
}
export { ThemeProvider };
useTheme.js
import { useState } from "react";
function useTheme (startingTheme ="light") {
const [theme, setTheme] = useState(startingTheme);
function validateTheme (themeValue) {
if (themeValue === "dark") {
setTheme("dark");
} else {
setTheme("light");
}
}
return {
theme,
setTheme: validateTheme,
}
}
export default useTheme;
ToggleContext.js
import React, { createContext } from "react";
import useToggle from "../hooks/useToggle";
export const ToggleContext = createContext();
function ToggleProvider({ children, startingToggle }) {
const { toggle, setToggle } = useToggle(startingToggle);
return (
<ToggleContext.Provider value={{ toggle, setToggle }}>
{children}
</ToggleContext.Provider>
);
}
export { ToggleProvider };
useToggle.js
import { useState } from "react";
function useToggle (startingToggle = false) {
const [toggle, setToggle] = useState(startingToggle);
function validateShowSidebar (showSidebarValue) {
if (showSidebarValue === "show") {
setToggle("show");
} else {
setToggle("");
}
}
return {
toggle,
setToggle: validateShowSidebar,
}
}
export default useToggle;
Navbar.js
import Image from "next/image";
import styles from "../../styles/Home.module.scss"
import Logo from "../../public/Knowledge Memo.svg"
import { useContext } from "react";
import { ThemeContext } from "../contexts/ThemeContext";
import { ToggleContext } from "../contexts/ToggleContext";
import Link from 'next/link';
import { useState } from "react";
const navbarData = [
{ id: "1",
title: "home",
ref: "#home"
},
{ id:"2",
title: "Skills",
ref: "#skills"
},
{ id:"3",
title: "The List",
ref: "#theList"
},
{ id: "4",
title: "Team",
ref: "#team"
},
{ id: "5",
title: "Contact",
ref: "#contact"
},
];
function Navbar() {
const theme = useContext(ThemeContext);
const toggle = useContext(ToggleContext);
return (
<>
<nav className={
theme === "light" ?
"navbar navbar-expand-lg navbar-dark fixed-top":
"navbar navbar-expand-lg navbar-dark bg-dark fixed-top id= mainNav"}>
<div className="container d-flex flex justify-content-between">
<a className="navbar-brand h-50" href="#page-top">
<div className="navbar-brand">
<Image
src={Logo}
alt="..."
fill="#fff"
objectFit="contain"
className="h-50"
/>
</div>
</a>
<button
onClick={ () => toggle === !toggle, console.log("clicked")}
className="navbar-toggler collapsed"
type="button"
data-bs-toggle="collapsed"
data-bs-target="#navbarResponsive"
aria-controls="navbarResponsive"
aria-expanded="false"
aria-label="Toggle navigation"
>
Menu
<i className="fa fa-bars ms-1 navbar-toggler" aria-hidden="true"></i>
</button>
{toggle ?
<div className="collapsed navbar-collapse mt-2 id=navbarResponsive">
<ul className="navbar-nav text-uppercase ms-auto py-4 py-lg-0">
{navbarData.map((link,idx) => {
return (
<li key={link.id}>
<Link href={`/${link.ref}`} className="nav-item" data-index={idx} passHref>
<a className="nav-link">
{link.title}
</a>
</Link>
</li>
);
})}
</ul>
</div>
: <div className="collapse navbar-collapse show mt-2 id=navbarResponsive">
<ul className="navbar-nav show text-uppercase ms-auto py-4 py-lg-0">
{navbarData.map((link,idx) => {
return (
<li key={link.id}>
<Link href={`/${link.ref}`} className="nav-item" data-index={idx} passHref>
<a className="nav-link">
{link.title}
</a>
</Link>
</li>
);
})}
</ul>
</div>}
</div>
</nav>
</>
);
}
export default Navbar;
You can try out this implemetation with reducers to handle for you the state change with localstorage. It is not an exact implemetation of your's but you can see the flow
In the AppContext.jsx
The AppContext holds the global state of the application so that it's easier working with a single context provider and dispatching actons to specific reducers to handle state change without providing many providers.
The combinedReducers handle reducer methods to a given state component
import { useReducer, createContext, useEffect } from "react";
import userReducer from "./reducers/userReducer";
import themeReducer from "./reducers/themeReducer";
export const APP_NAME = "test_app";
//Check the localstorage or set a default state
const initialState = JSON.parse(localStorage.getItem(APP_NAME))
? JSON.parse(localStorage.getItem(APP_NAME))
: {
user: {
username: "",
email: "",
isAdmin: false,
},
theme: { dark: false },
};
//Create your global context
const AppContext = createContext(initialState);
//Create combined reducers
const combinedReducers = ({ user, theme }, action) => ({
user: userReducer(user, action),
theme: themeReducer(theme, action),
});
const AppState = ({ children }) => {
//Making it to provider state
const [state, dispatch] = useReducer(combinedReducers, initialState);
useEffect(() => {
localStorage.setItem(APP_NAME, JSON.stringify(state));
}, [state]);
return (
<AppContext.Provider value={{ state, dispatch }}>
{children}
</AppContext.Provider>
);
};
export default AppState;
export { AppContext, AppState };
The above implementation works like redux but you destructure the given state to a specific reducer to handle the state change
In this I have used localstorage to keep a persistent state because with context API on page reload the state goes. Use the useEffect hook from react and add the state in the dependency array to ensure your state is in sync
In the UserReducer.jsx
const userReducer = (state, action) => {
const { type, payload } = action;
switch (type) {
case "LOGIN":
return { ...state, ...payload };
case "LOGOUT":
return {};
default:
return state;
}
};
export default userReducer;
In the ThemeReducer.jsx
const themeReducer = (state, action) => {
const { type, payload } = action;
switch (type) {
case "DARK":
return { ...payload };
default:
return state;
}
};
export default themeReducer;
Wrapping the whole app with a single provider in the index.jsx
import reactDom from "react-dom"
import React from "react"
import App from "./App"
import "./index.css"
import AppState from "./state/AppState"
reactDom.render(
<React.StrictMode>
<AppState >
<App />
</AppState>
</React.StrictMode>,
document.getElementById("root")
)
Accessing the context from App.jsx
import { useContext } from "react";
import { AppContext } from "./state/AppState";
const App = () => {
const { state, dispatch } = useContext(AppContext);
const handleLogin = () => {
dispatch({
type: "LOGIN",
payload: {
username: "Mike",
email: "mike#gmail.com",
isAdmin: false,
},
});
};
const handleLogout = () => {
dispatch({
type: "LOGOUT",
payload: {},
});
};
return (
<div className="main-container">
<div className="container">
<p>Username: {state.user.username ? state.user.username : "Unknown"}</p>
<p>Email: {state.user.email ? state.user.email : "Unknown"}</p>
</div>
<button onClick={handleLogin}>Login</button>
<button onClick={handleLogout} style={{ background: "red" }}>
Login
</button>
</div>
);
};
export default App;
Here is my code LINK if you want to see the structure Github
I am working with the MovieDB API. I want to show now playing movies on the root route but search result in another route.
I have tried putting history.push() method in handlesubmit but it shows error. Here's the code. Currently I am showing search result component in the home page itself.
App.js
import React, { Component } from "react";
import "./App.css";
import { BrowserRouter, Link, Switch, Route } from "react-router-dom";
import Nav from "./component/Nav";
import axios from "axios";
import { Provider } from "./context";
import Home from "./component/Home";
import SearchResult from "./component/SearchResult";
import MovieDetails from "./component/movieDetails";
class App extends Component {
state = {
movieList: [],
searchResult: [],
currentpage: 1,
totalpage: 1,
API_KEY: "c51081c224217a3989b0bc0c4b3d3fff"
};
componentDidMount() {
this.getCurrentMovies();
}
getCurrentMovies = e => {
axios
.get(
`https://api.themoviedb.org/3/movie/now_playing?api_key=${
this.state.API_KEY
}&language=en-US&page=${this.state.currentpage}`
)
.then(res => {
this.setState({
movieList: res.data.results,
currentpage: res.data.page,
totalpage: res.data.total_pages
});
console.log(this.state);
});
};
getMovies = e => {
e.preventDefault();
const moviename = e.target.elements.moviename.value;
axios
.get(
`https://api.themoviedb.org/3/search/movie?api_key=${
this.state.API_KEY
}&query=${moviename}`
)
.then(res => {
this.setState({
searchResult: res.data.results
});
console.log(this.state.searchResult);
});
console.log(this.router);
};
nextPage = () => {
this.setState(
{
currentpage: (this.state.currentpage += 1)
},
() => console.log(this.state.currentpage)
);
this.getCurrentMovies();
};
prevPage = () => {
if (this.state.movieList && this.state.currentpage !== 1) {
this.setState(
{
currentpage: (this.state.currentpage -= 1)
},
() => console.log(this.state.currentpage)
);
this.getCurrentMovies();
}
};
render() {
const contextProps = {
myState: this.state,
getMovies: this.getMovies,
nextPage: this.nextPage,
prevPage: this.prevPage,
};
return (
<Provider value={contextProps}>
<BrowserRouter>
<Nav />
<Switch>
<Route exact path="/" component={Home} />
<Route path="/:id" component={MovieDetails} />
</Switch>
</BrowserRouter>
</Provider>
);
}
}
export default App;
Home.js
import React, { Component } from "react";
import NowPlaying from "./NowPlaying";
import SearchResult from "./SearchResult";
import SearchBox from "./SearchBox";
class Home extends Component {
state = {};
render() {
return (
<div>
<SearchBox />
<SearchResult />
<NowPlaying />
</div>
);
}
}
export default Home;
SearchBox.js
import React, { Component } from "react";
import { MyContext } from "../context";
import { withRouter } from "react-router-dom";
class SearchBox extends Component {
static contextType = MyContext;
render() {
return (
<React.Fragment>
<div className="jumbotron jumbotron-fluid">
<div className="container" style={{ textAlign: "center" }}>
<h1 className="display-4">Find your Movie</h1>
<p className="lead">
Find rating, descrips and much more of your fev. movie.
</p>
<form onSubmit={this.context.getMovies}>
<input
name="moviename"
className="form-control mr-sm-2"
type="search, submit"
placeholder="Search"
aria-label="Search"
style={{ height: "50px" }}
/>
</form>
</div>
</div>
<div />
</React.Fragment>
);
}
}
export default withRouter(SearchBox);
SearchResult.js
import React, { Component } from "react";
import Movie from "./movie";
import { withRouter } from "react-router-dom";
import { MyContext } from "../context";
import SearchBox from "./SearchBox";
class SearchResult extends Component {
static contextType = MyContext;
render() {
return (
<React.Fragment>
<div className="container">
<div className="row justify-content-center">
{this.context.myState.searchResult.map(movie => {
return <Movie id={movie.id} image={movie.poster_path} />;
})}
</div>
{/* <button>Prev</button>
<button>Next</button> */}
</div>
</React.Fragment>
);
}
}
export default SearchResult;
and another thing. The pagination works for Now Playing Movies but couldn't make it to work with search result. Please help.
You can pass data with Redirect like this:
<Redirect to={{
pathname: '/movies',
state: { id: '123' }
}}
/>
and this is how you can access it:
this.props.location.state.id
I have the problem when I use the Reactjs, I'm really new to Reactjs, so maybe it's a easy problem
I want to use the class ClickButton in the UserInfo,but I don't know how to change the name through props
import React, { PropTypes } from 'react';
import { Button } from 'antd';
import { connect } from 'react-redux';
import styles from './ClickButton.less';
const ClickButton = ({ todos,dispatch }) => {
const userinforclick = () => {
dispatch({
type: 'todos/clickbutton',
payload: !todos['click_button'],
});
};
return (
<span>
< span type="primary" className={ styles.show } onClick={ userinforclick.bind(this) } > {this.props.name} < /span >
</span>
);
};
function clickbutton({ todos }){
return{
todos:todos,
}
}
export default connect(clickbutton)(ClickButton)
and i use the ClickButton in UserInfo:
import React from 'react'
import styles from './Userinfo.less'
import ClickButton from '../../components/Button/ClickButton'
import { connect } from 'react-redux';
import { Spin } from 'antd'
const Userinfo = ({ todos,dispatch }) => {
const { userinfo, userinfoloading, click_button } = todos;
if(userinfoloading) {
return <Spin />;
}
const renderList = () => {
return(
<div className={ styles.userInfodiv}>
<div>
<span className={ styles.userInfoTitle }>userinfo</span>
</div>
<div className = { styles.slice }></div>
<div className = { styles.userInfoBody}>
<div className = { styles.userInfoSubBody }>
<span>username:</span>
<span>{userinfo[0]['username']}</span>
</div>
<div className = { styles.userInfoSubBody }>
<span>number:</span>
{ click_button ? <span>{userinfo[0]['phone']}</span> : <input type="text" value={userinfo[0]['phone']} /> }
<ClickButton name="john" />
</div>
</div>
</div>
);
};
return (
<div>
{ renderList() }
</div>
);
};
function mapStateToProps({ todos }) {
return {
todos: todos,
};
}
export default connect(mapStateToProps)(Userinfo);
Here's something that actually works (although I removed the todos and such but you can add them in easily):
class RenderList extends React.Component {
render() {
return (<span> {this.props.name} </span>);
}
}
class App extends React.Component {
render() {
return (<div>
<RenderList name="John"/>
</div>)
}
}
ReactDOM.render(<App/>,document.getElementById("app"));