Attempting to calculate a property of the scope is ineffective

I am brand new to the world of AngularJS and I am struggling with a specific calculation. I have created a form where users can enter a volume number, which will be used in a calculation to populate a field in my MongoDB document. However, I am having issues with this calculation as it always seems to insert the original product volume instead of the calculated one.

While I have no problem populating the types and tags array for my MongoDB document, I am facing challenges with the volume calculation.

$scope.product = {
    types: [],
    tags: []
  };

Within the form group is where I retrieve the product volume:

.form-group
        label.col-sm-3.control-label Volume
        .col-sm-4
            input.form-control(
            ng-model='product.volume',
            type='number',
            placeholder='Volume')

My submit button triggers the creation of a new product document for MongoDB and initiates the calculation process:

var product = new Product($scope.product);

var capacity = 100
$scope.product.volume = (capacity / $scope.product.volume);

Once the MongoDB document setup is complete, I save it:

product.$save(function ()...

What could potentially be causing this issue?

javascriptangularjsmongodbmongoose

Answer №1

Instead of editing the $scope.product after creating the Product, try transforming the $scope.product.volume before instantiation.

var product;
var capacity = 100;

$scope.product.volume = (capacity / $scope.product.volume);
product = new Product($scope.product);
product.$save(...);

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