Filter Array Using Checkboxes with AngularJS

Question

I have the following code where i\'m trying to filter on the players in the array by checking a checkbox for the pantsize of a player.

I know i have the data array

Answer 1

Full optimzed js Code

var myApp = angular.module('myApp',[]);
var selected;

var uniqueItems = function (data, key) {
    var result = [];

    for (var i = 0; i < data.length; i++) {
        var value = data[i][key];

        if (result.indexOf(value) == -1) {
            result.push(value);
        }

    }
    return result;
};

var fliter = function(totalData,selectedData,equalData){
    var filterAfter = [];   
    selected = false;
    for (var j in totalData) {
        var p = totalData[j];
        for (var i in selectedData) {
            if (selectedData[i]) {
                selected = true;
                if (i == p[equalData]) {
                    filterAfter.push(p);
                    break;
                }
            }
        }        
    }
    if (!selected) {
        filterAfter = totalData;
    }

    return filterAfter;
}

function MyCtrl($scope, filterFilter) {

    $scope.usePants = {};
    $scope.useShirts = {};
    $scope.useShoes = {};

    $scope.players = [
        {name: 'Bruce Wayne', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Wayne Gretzky', shirt: 'XL', pants: '38', shoes: '10'},
        {name: 'Michael Jordan', shirt: 'M', pants: '32', shoes: '9'},
        {name: 'Rodman', shirt: 'XXL', pants: '42', shoes: '11'},
        {name: 'Jake Smitz', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Will Will', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Youasdf Oukls', shirt: 'XL', pants: '38', shoes: '10'},
        {name: 'Sam Sneed', shirt: 'XL', pants: '38', shoes: '10'},
        {name: 'Bill Waxy', shirt: 'M', pants: '32', shoes: '9'},
        {name: 'Javier Xavior', shirt: 'M', pants: '32', shoes: '9'},
        {name: 'Bill Knight', shirt: 'M', pants: '32', shoes: '9'},        
        {name: 'One More', shirt: 'M', pants: '32', shoes: '9'},        
        {name: 'Player One', shirt: 'XXL', pants: '42', shoes: '11'},
        {name: 'Space Cadet', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Player Two', shirt: 'XXL', pants: '42', shoes: '12'}
    ]; 

    // Watch the pants that are selected
    $scope.$watch(function () {
        return {
            players: $scope.players,
            usePants: $scope.usePants,
            useShirts: $scope.useShirts,
            useShoes: $scope.useShoes
        }
    }, function (value) {

            $scope.count = function (prop, value) {
                return function (el) {
                    return el[prop] == value;
                };
            };

            $scope.pantsGroup = uniqueItems($scope.players, 'pants');
            $scope.shirtsGroup = uniqueItems($scope.players, 'shirt');
            $scope.shoesGroup = uniqueItems($scope.players, 'shoes');

            var fliterType = [{selected : $scope.usePants,fliter : 'pants'},{selected : $scope.useShirts,fliter : 'shirt'},{selected : $scope.useShoes,fliter : 'shoes'}];

            var startFliter = $scope.players;

            for(var i in fliterType){
                var startFliter = fliter(startFliter,fliterType[i].selected,fliterType[i].fliter);
            }

            $scope.filteredPlayers = startFliter;

        }, true);}

Answer 2

EDIT 2

Per all the requests of the OP, here is the final state.

http://jsfiddle.net/rzgWr/19/

---

EDIT (OP added a bounty)

Per your bounty, is this what you wanted?

http://jsfiddle.net/rzgWr/17/

---

Is this what you wanted?

http://jsfiddle.net/rzgWr/12/

Template

<div ng-controller="MyCtrl">
    <div>
      <div>
          Search: <input name="company" type="text" class="search-input" ng-model="query"/>
       </div>
    <div ng-init="pantsGroup = (players | groupBy:'pants')">
        <div ng-repeat="pants in pantsGroup" >
            <b><input type="checkbox" ng-model="usePants[$index]"/>{{pants}}</b>
            <span>({{(players | filter:pants).length}})</span>
        </div>
    </div>

    <div>
        <ul>
        <li ng-repeat="player in players | filter:query | filter:filterPants()">
            <p><b>{{player.name}}</b></p>
            <p>{{player.shirt}} {{player.pants}}, {{player.shoes}}</p>
        </li>
        </ul>    
    </div>
    </div>
</div>

Script

var myApp = angular.module('myApp',[]);

function MyCtrl($scope, filterFilter) {
    $scope.usePants = [];

    $scope.filterPants = function () {
        return function (p) {
            for (var i in $scope.usePants) {
                return (p.pants == $scope.pantsGroup[i] && $scope.usePants[i]);
            }
        };
    };

    $scope.players = [
        {name: 'Bruce Wayne', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Wayne Gretzky', shirt: 'XL', pants: '38', shoes: '10'},
        {name: 'Michael Jordan', shirt: 'M', pants: '32', shoes: '9'},
        {name: 'Rodman', shirt: 'XXL', pants: '42', shoes: '11'},
        {name: 'Jake Smitz', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Will Will', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Youasdf Oukls', shirt: 'XL', pants: '38', shoes: '10'},
        {name: 'Sam Sneed', shirt: 'XL', pants: '38', shoes: '10'},
        {name: 'Bill Waxy', shirt: 'M', pants: '32', shoes: '9'},
        {name: 'Javier Xavior', shirt: 'M', pants: '32', shoes: '9'},
        {name: 'Bill Knight', shirt: 'M', pants: '32', shoes: '9'},        
        {name: 'One More', shirt: 'M', pants: '32', shoes: '9'},        
        {name: 'Player One', shirt: 'XXL', pants: '42', shoes: '11'},
        {name: 'Space Cadet', shirt: 'XXL', pants: '42', shoes: '12'},
        {name: 'Player Two', shirt: 'XXL', pants: '42', shoes: '12'}
    ]; 

    $scope.$watch('filtered', function (newValue) {
        if (angular.isArray(newValue)) {
            console.log(newValue.length);
        }
    }, true);    
}

myApp.filter('count', function() {
    return function(collection, key) {
      var out = "test";
      for (var i = 0; i < collection.length; i++) {
          //console.log(collection[i].pants);
          //var out = myApp.filter('filter')(collection[i].pants, "42", true);
      }
      return out;
    }
});

var uniqueItems = function (data, key) {
    var result = new Array();
    for (var i = 0; i < data.length; i++) {
        var value = data[i][key];

        if (result.indexOf(value) == -1) {
            result.push(value);
        }

    }
    return result;
};

myApp.filter('groupBy',
            function () {
                return function (collection, key) {
                    if (collection === null) return;
                    return uniqueItems(collection, key);
        };
    });