Here is an example:
<div class="row" ng-repeat="(key, value) in sections">
<h5>{{ value }}</h5>
<ul>
<li ng-repeat="item in $parent.items | filter: key">{{ item.name }} -- {{ item.section }}</li>
</ul>
</div>
The goal is to filter the nested ng-repeat of items based on the section key.
This setup will allow each item to display related items, where {{ item.section }} matches {{ value }}
To meet the requirement of iterating over an object and filtering the child ng-repeat by using the key of its parent, you can implement a custom function that returns the desired object. Below is a sample application illustrating this concept.
var app = angular.module('sample', []);
app.controller('samplecontroller', function($scope) {
$scope.filterKey = function(value) {
return {
name: value
};
};
$scope.categories = {
'John': 'English'
};
$scope.posts = [{
name: 'John',
category: 'General'
}, {
name: 'James',
category: 'Restricted'
}]
});<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="sample">
<div ng-controller="samplecontroller">
<div class="row" ng-repeat="(key, value) in categories">
<h5>{{ value }}</h5>
<ul>
<li ng-repeat="post in $parent.posts | filter: filterKey(key)">{{ post.name }} -- {{ post.category }}</li>
</ul>
</div>
</div>
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