What is the proper way to utilize a filtered object based on its properties within an Angular controller?

Currently, I am working on developing a stacked graph along with its associated table. To retrieve the necessary JSON data, I am utilizing $http.get() and then assigning it to $scope.dataset.

Here's a snippet of the HTML:

<input ng-model="_searchQuery.key1.key2">
<tr  ng-repeat="(key, value) in dataset | filter:_searchQuery ">

My main query is regarding updating $scope.dataset within the controller?

The _searchQuery effectively filters the dataset, seamlessly altering my table. This means no additional coding is required in the controller. Essentially, dataset.key1.key2 corresponds to _searchQuery.key1.key2

However, when it comes to working with the nvd3.js stacked graphs, I found myself needing to apply similar filtering to $scope.dataset directly in the DOM. Attempting 

$scope.dataset = $filter('$scope._searchQuery.key1.key2')($scope.dataset)
resulted in an error. My approach mimics that of Angular documentation as well as insights from this source: How to use a filter in a controller?

javascriptangularjsfilterangularjs-interpolate

Answer №1

Seems like this question may have been asked before: How can I filter an array in AngularJS and use a property of the filtered object for ng-model?

I found a solution that worked for me:

First, I had to initialize $scope._searchQuery as an object in the controller and include its properties.

Secondly, I updated $scope.dataset - using the keyword filter to filter by object property, specifically with _searchQuery.

The following syntax helped resolve the issue: 

$scope.dataset = $filter('filter')($scope.dataset,$scope._searchQuery.key1.key2);

It seems that only two arguments can be passed to $filter, so to filter based on more inputs, I had to duplicate the same line and pass $scope._searchQuery.key1.key3 to it.

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