Wijmo 5 - Multi-Filter

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet" href="http://cdn.wijmo.com/5.latest/styles/wijmo.min.css">
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.input.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/interop/angular/wijmo.angular.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.filter.min.js"></script>
<!-- mark this as an Angular application and give it a controller -->
<div ng-app="app" ng-controller="appCtrl">
    
<h1>Multi-filter</h1>

    <p>
        This sample shows how you can combine filters:
        
        <p>Main filter: <wj-input-mask ng-model="globalFilterText" value-changed="globalFilterTextChange()"></wj-input-mask></p>
    <wj-flex-grid items-source="data">
        <wj-flex-grid-filter initialized="initFilter(s)" filter-applied="filterApplied(s)"></wj-flex-grid-filter>
    </wj-flex-grid>
</div>

JavaScript

// define app, include Wijmo 5 directives
var app = angular.module('app', ['wj']);

// controller
app.controller('appCtrl', function ($scope) {
		$scope.filter;
    // create some random data
    var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','),
        data = [];
    for (var i = 0; i < 100; i++) {
        data.push({
            country: countries[i % countries.length],
            downloads: Math.round(Math.random() * 20000),
            sales: Math.random() * 10000,
            expenses: Math.random() * 5000
        });
    }
    // data is the main collection view:
    $scope.data = new wijmo.collections.CollectionView(data);
   
   $scope.globalFilterTextChange = function() {
   	if($scope.filter){
    	$scope.filter.apply();
    }
   }
   
   $scope.filterApplied = function(filter) {
    initCustomFilterFun(filter);
  }

  $scope.initFilter = function initFilter(filter){
  	$scope.filter = filter;
    initCustomFilterFun(filter);
  }

  function initCustomFilterFun(filter) {
    let filterFun = (item) => {
      //check if item satisfies default filters

      let filCols=filter.filterColumns;
      if(!filCols){
        filCols=filter.grid.columns.map(col=>col.binding);
      }
      for(let i=0;i<filCols.length;i++){
        let colBinding=filCols[i];
        let colFil=filter.getColumnFilter(colBinding);
        if(!colFil.apply(item)){
          return false;
        }
      }

      //passes default filters now check for custom filter/filters
      //if globalFilterText does not exists then it passes filter, return true
      if(!$scope.globalFilterText) {
        return true;
      }

      //ceck lif global filter text is present in any of the entries
      for (let key in item){
        let curValue = item[key].toString().toLowerCase();
        if(curValue.indexOf($scope.globalFilterText)>=0) {
          //passses global filter, return true
          return true;
        }
      }

      //failed global filter
      return false;
     ...