计算总排在NG-重复与其他控制器 [英] Calculate total of rows in ng-repeat with other controller
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问题描述
我这里一共将计算行。
I got rows where a total will be calculated.
在我的NG-重复我有一个控制器 RowCtrl
,我计算出总的。
In my ng-repeat I have a controller RowCtrl
where I calculate the total.
app.controller('RowCtrl', function ($scope) {
$scope.unit_price = 0;
$scope.quantity = 0;
$scope.$watchCollection('[row.unit_price, row.quantity]', function () {
$scope.row.total = $scope.row.unit_price * $scope.row.quantity;
});
});
我如何计算总的所有行?
How can I calculate the total of all the rows?
在fiddlr我有其中总一排已经计算的行的演示。
In the fiddlr I have a demo of the rows where the total of a row is already calculated.
Fiddlr: http://jsfiddle.net/9t9em/1/
推荐答案
您不需要RowCtrl
you don't need RowCtrl
app.controller('MainCtrl', function ($scope) {
$scope.rows = [{
unit_price: 1,
quantity: 0
}, {
unit_price: 2,
quantity: 0
}, {
unit_price: 3,
quantity: 0
}];
$scope.$watch('rows', function () {
$scope.total = 0
angular.forEach($scope.rows, function(row){
$scope.total += row.unit_price * row.quantity
})
}, true)
});
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