I am using react with react-router. I am trying to pass property’s in a "Link" of react-router
var React = require('react');
var Router = require('react-router');
var CreateIdeaView = require('./components/createIdeaView.jsx');
var Link = Router.Link;
var Route = Router.Route;
var DefaultRoute = Router.DefaultRoute;
var RouteHandler = Router.RouteHandler;
var App = React.createClass({
render : function(){
return(
<div>
<Link to="ideas" params={{ testvalue: "hello" }}>Create Idea</Link>
<RouteHandler/>
</div>
);
}
});
var routes = (
<Route name="app" path="/" handler={App}>
<Route name="ideas" handler={CreateIdeaView} />
<DefaultRoute handler={Home} />
</Route>
);
Router.run(routes, function(Handler) {
React.render(<Handler />, document.getElementById('main'))
});
The "Link" renders the page but does not pass the property to the new view. Below is the view code
var React = require('react');
var Router = require('react-router');
var CreateIdeaView = React.createClass({
render : function(){
console.log('props form link',this.props,this)//props not recived
return(
<div>
<h1>Create Post: </h1>
<input type='text' ref='newIdeaTitle' placeholder='title'></input>
<input type='text' ref='newIdeaBody' placeholder='body'></input>
</div>
);
}
});
module.exports = CreateIdeaView;
How can I pass data using "Link"?
This line is missing path
:
<Route name="ideas" handler={CreateIdeaView} />
Should be:
<Route name="ideas" path="/:testvalue" handler={CreateIdeaView} />
Given the following Link
(outdated v1):
<Link to="ideas" params={{ testvalue: "hello" }}>Create Idea</Link>
Up to date as of v4:
const backUrl = '/some/other/value'
// this.props.testvalue === "hello"
<Link to={{pathname: `/${this.props.testvalue}`, query: {backUrl}}} />
and in the withRouter(CreateIdeaView)
components render()
:
console.log(this.props.match.params.testvalue, this.props.location.query.backurl)
// output
hello /some/other/value
From the link that you posted on the docs, towards the bottom of the page:
Given a route like
<Route name="user" path="/users/:userId"/>
Updated code example with some stubbed query examples:
// import React, {Component, Props, ReactDOM} from 'react';
// import {Route, Switch} from 'react-router'; etc etc
// this snippet has it all attached to window since its in browser
const {
BrowserRouter,
Switch,
Route,
Link,
NavLink
} = ReactRouterDOM;
class World extends React.Component {
constructor(props) {
super(props);
console.dir(props);
this.state = {
fromIdeas: props.match.params.WORLD || 'unknown'
}
}
render() {
const { match, location} = this.props;
return (
<React.Fragment>
<h2>{this.state.fromIdeas}</h2>
<span>thing:
{location.query
&& location.query.thing}
</span><br/>
<span>another1:
{location.query
&& location.query.another1
|| 'none for 2 or 3'}
</span>
</React.Fragment>
);
}
}
class Ideas extends React.Component {
constructor(props) {
super(props);
console.dir(props);
this.state = {
fromAppItem: props.location.item,
fromAppId: props.location.id,
nextPage: 'world1',
showWorld2: false
}
}
render() {
return (
<React.Fragment>
<li>item: {this.state.fromAppItem.okay}</li>
<li>id: {this.state.fromAppId}</li>
<li>
<Link
to={{
pathname: `/hello/${this.state.nextPage}`,
query:{thing: 'asdf', another1: 'stuff'}
}}>
Home 1
</Link>
</li>
<li>
<button
onClick={() => this.setState({
nextPage: 'world2',
showWorld2: true})}>
switch 2
</button>
</li>
{this.state.showWorld2
&&
<li>
<Link
to={{
pathname: `/hello/${this.state.nextPage}`,
query:{thing: 'fdsa'}}} >
Home 2
</Link>
</li>
}
<NavLink to="/hello">Home 3</NavLink>
</React.Fragment>
);
}
}
class App extends React.Component {
render() {
return (
<React.Fragment>
<Link to={{
pathname:'/ideas/:id',
id: 222,
item: {
okay: 123
}}}>Ideas</Link>
<Switch>
<Route exact path='/ideas/:id/' component={Ideas}/>
<Route path='/hello/:WORLD?/:thing?' component={World}/>
</Switch>
</React.Fragment>
);
}
}
ReactDOM.render((
<BrowserRouter>
<App />
</BrowserRouter>
), document.getElementById('ideas'));
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-router-dom/4.3.1/react-router-dom.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-router/4.3.1/react-router.min.js"></script>
<div id="ideas"></div>
From the upgrade guide from 1.x to 2.x:
<Link to>
, onEnter, and isActive use location descriptors
<Link to>
can now take a location descriptor in addition to strings. The query and state props are deprecated.// v1.0.x
<Link to="/foo" query={{ the: 'query' }}/>
// v2.0.0
<Link to={{ pathname: '/foo', query: { the: 'query' } }}/>
// Still valid in 2.x
<Link to="/foo"/>
Likewise, redirecting from an onEnter hook now also uses a location descriptor.
// v1.0.x
(nextState, replaceState) => replaceState(null, '/foo') (nextState, replaceState) => replaceState(null, '/foo', { the: 'query' })
// v2.0.0
(nextState, replace) => replace('/foo') (nextState, replace) => replace({ pathname: '/foo', query: { the: 'query' } })
For custom link-like components, the same applies for router.isActive, previously history.isActive.
// v1.0.x
history.isActive(pathname, query, indexOnly)
// v2.0.0
router.isActive({ pathname, query }, indexOnly)
https://github.com/ReactTraining/react-router/pull/3288
The interface is basically still the same as v2, best to look at the CHANGES.md for react-router, as that is where the updates are.
"legacy migration documentation" for posterity