[angularjs] AngularJS : Custom filters and ng-repeat

I'm an AngularJS newbie and I'm building up a small proof-of-concept car hire listings app that pulls in some JSON and renders out various bits of that data via an ng-repeat, with a couple of filters:

   <article data-ng-repeat="result in results | filter:search" class="result">
        <header><h3>{{result.carType.name}}, {{result.carDetails.doors}} door, &pound;{{result.price.value}} - {{ result.company.name }}</h3></header>
            <ul class="result-features">
                <li>{{result.carDetails.hireDuration}} day hire</li>
                <li data-ng-show="result.carDetails.airCon">Air conditioning</li>
                <li data-ng-show="result.carDetails.unlimitedMileage">Unlimited Mileage</li>
                <li data-ng-show="result.carDetails.theftProtection">Theft Protection</li>
            </ul>
    </article>

    <h2>Filters</h2>

    <h4>Doors:</h4> 
    <select data-ng-model="search.carDetails">
        <option value="">All</option>
        <option value="2">2</option>
        <option value="4">4</option>
        <option value="9">9</option>
    </select>

    <h4>Provider:</h4>
    Atlas Choice <input type="checkbox"  data-ng-model="search.company" ng-true-value="Atlas Choice" ng-false-value="" value="Atlas Choice" /><br>
    Holiday Autos <input type="checkbox"  data-ng-model="search.company" ng-true-value="Holiday Autos" ng-false-value="" value="Holiday Autos" /><br>
    Avis <input type="checkbox"  data-ng-model="search.company" ng-true-value="Avis" ng-false-value="" value="Avis" /><br>      

Now I want to create a custom filter in my controller, that can iterate over the items in my ng-repeat and return only the items that meet certain criteria - for example, I might create an array of values based on which 'provider' checkboxes are checked, then evaluate each ng-repeat item against that. I just can't work out how I'd do that though, in terms of the syntax - can anyone help?

Here's my Plunker: http://plnkr.co/edit/lNJNYagMC2rszbSOF95k?p=preview

If you still want a custom filter you can pass in the search model to the filter:

<article data-ng-repeat="result in results | cartypefilter:search" class="result">

Where definition for the cartypefilter can look like this:

app.filter('cartypefilter', function() {
  return function(items, search) {
    if (!search) {
      return items;
    }

    var carType = search.carType;
    if (!carType || '' === carType) {
      return items;
    }

    return items.filter(function(element, index, array) {
      return element.carType.name === search.carType;
    });

  };
});

http://plnkr.co/edit/kBcUIayO8tQsTTjTA2vO?p=preview

You can call more of 1 function filters in the same ng-repeat filter

<article data-ng-repeat="result in results | filter:search() | filter:filterFn()" class="result">

One of the easiest ways to fix this is to use the $ which is the search all.

Here is a plunker that shows it working. I have changed the checkboxes to radio ( because I thought they should be complementary )..

http://plnkr.co/edit/dHzvm6hR5P8G4wPuTxoi?p=preview

If you want a very specific way of doing this ( instead of doing a generic search ) you need work with functions in the search.

The documentation is here

http://docs.angularjs.org/api/ng.filter:filter