angularjs - How to Order by Scope function and then by a field -
how can order gettotal() , quantity descending?
<!doctype html> <html ng-app="shop"> <head> <script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script> </head> <body> <div ng-controller='productctrl'> <ul> <li ng-repeat="x in products| orderby:'price'"> {{x.quantity}} {{x.name}} <strong>{{ (x.quantity*x.price)|currency}}</strong> </li> </ul> <p>total = {{ (gettotal()) | currency }}</p> </div> <script> var app=angular.module("shop",[]) .controller('productctrl',function($scope){ $scope.products=[{quantity:4,price:42.3,name:"hdd sata"}, {quantity:14,price:2.83,name:"usb key"}, {quantity:5,price:11.03,name:"azerty keyboard"}, {quantity:1,price:4.3,name:"mouse"}]; $scope.gettotal=function(){ var sum=0; for(var i=0;i<$scope.products.length;i++){ sum+=($scope.products[i].price*$scope.products[i].quantity); } return sum; } }); </script> </body> </html>
if need order gettotal() function return 1 value (total of item values) there no useful of using function order. think need order item totals instead of item total:
try one,
ex: consider following data
$scope.products = [{ quantity: 4, price: 1, name: "hdd sata" }, { quantity: 2, price: 2, name: "usb key" }, { quantity: 5, price: 11.03, name: "azerty keyboard" }, { quantity: 1, price: 4.3, name: "mouse" }]; i think need hdd sata on top , azerty keyboard on bottom, because total price hdd sata $4.00 meanwhile usb key $4.00 hdd sata has 4 quantity while usb key has 2 quantity , u need quantity descending hdd sata in top of usb key. azerty keyboard has subtotal of $55.15 highest total item , in bottom.
in html,
<li ng-repeat="x in products| orderby:[gettotalforitem, '-quantity'] "> in controller,
$scope.gettotalforitem = function(item) { return item.price * item.quantity; } here demo plunker
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