Sample Angular Factory

factory-customer.js

/**
 * https://medium.com/opinionated-angularjs/angular-model-objects-with-javascript-classes-2e6a067c73bc
 */
.factory('Customer', function ($http, $log, KeyMap) {

    var Customer = function(OtherCustomer){
        this.id          = OtherCustomer.id;
        this.keymap      = KeyMap;
        this.comparisons = [];
        this.working     = false;
    }

    /**
     * retrieve the related record, and use the keymap to compare the two objects.
     * pack the "comparisons" variable with { keyA, valueA, equality, valB, keyB }
     */
    Customer.prototype.compare = function(){
        var CUST        = this;
        var comparisons = [];
        CUST.working    = true;
        $http
        .post('data/account.php', { "id": CUST.id })
        .success(function(response){
            CUST.comparisons = [];
            CUST.B          = response.data;
            angular.forEach(CUST.A, function(value, key) {
                var altkey = CUST.keymap.getAltKey(key, 'A', 'B');
                var comparison = {
                    keyA     = key;
                    valA     = value;
                    keyB     = altkey;
                    valB     = CUST.B[altkey];
                    equality = CUST.checkEquality( comparison.valA, comparison.valB );
                };
                CUST.comparisons.push(comparison);
            });
            CUST.working = false;
        })
        .error(function(){ 
            alert('could not get account ' + id); CUST.working = false;
        });
     }
    
     /**
      * a loose equality check, but will also have to make up for datatype differences.
      */
     Customer.prototype.checkEquality = function(a, b){
         if(a == null) a = '';
         if(b == null) b = '';
         return ( a == b ? true : false );
     }
     
    return Customer;
})