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Add documentation for ProxyRoute

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This commit is contained in:
Tim Daubenschütz 2015-10-09 15:39:00 +02:00
parent 69afc6165a
commit 211e253fb8
1 changed files with 38 additions and 1 deletions
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39
js/components/ascribe_routes/proxy_route.js
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@ -19,6 +19,43 @@ const ProxyRoute = React.createClass({
statics: {
createRouteFromReactElement(element) {
/**
* Generally creating custom `Route`s is not supported by react-router.
*
* However, if we take a look at how `Route`s are declared in the repo,
* we see that it's fairly straight forward:
* - https://github.com/rackt/react-router/blob/master/modules/Route.js#L21
*
* ```
* const route = createRouteFromReactElement(element)
*
* [...]
*
* return route;
* ```
*
* Unfortunately, though `createRouteFromReactElement` is not exported by
* react-router, as can be seen here:
* - https://github.com/rackt/react-router/blob/master/modules/index.js#L19
*
* Still there is a trick we can use to call this method manually.
* We call `createRoutes`:
* - (https://github.com/rackt/react-router/blob/master/modules/RouteUtils.js#L91)
* which then calls `createRoutesFromReactChildren`
*
* For each route element submitted as an array, this method checks if
* `element.type.createRouteFromReactElement` is `true` or `false`.
*
* So what we can do is just simply set our element's `type.createRouteFromReactElement`
* to `false`, so that the if statement falls into the methods `else` case and calls
* `createRouteFromReactElement`:
* - https://github.com/rackt/react-router/blob/master/modules/RouteUtils.js#L77
*
* After returning from `createRoutes`, we set `element.type.createRouteFromReactElement`
* to its original value and replace route's `component`, with our manually inserted
* component.
*/
const createRouteFromReactElementCopy = element.type.createRouteFromReactElement;
element.type.createRouteFromReactElement = false;
const [ route ] = createRoutes(element);
@ -35,7 +72,7 @@ const ProxyRoute = React.createClass({
render() {
invariant(
false,
'Some error message'
'<ProxyRoute> elements are for router configuration only and should not be rendered'
);
}
});