angularjsangularjs-ng-repeatng-showionic-v1

How to create nested structure with ng-repeat in AngularJS

Issue with ng-repeat, AngularJS looping

I'm having trouble creating this loop structure using ng-repeat in angular js(ionic 1 app). When I use ng-repeat, the date is repeatedly shown along with each event in every loop. But I want to show the date only once for corresponding events as shown in the picture.

image

Solution

  • You need a groupBy filter, which you (write manually, or) get from angular-filter module. Simply set a JSON with events and dates listed together. Here is a small demo that you can adjust to your example:

    var app = angular.module('myApp', ['angular.filter']);
app.controller('myCtrl', function($scope) {
  $scope.events = [{
      "date": "Sept-1",
      "event": "Event 1"
    },
    {
      "date": "Sept-1",
      "event": "Event 2"
    },
    {
      "date": "Sept-2",
      "event": "Event 3"
    },
    {
      "date": "Sept-2",
      "event": "Event 4"
    },
    {
      "date": "Sept-3",
      "event": "Event 5"
    },
  ]
});
    <!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular-filter/0.5.17/angular-filter.min.js"></script>

<body>

  <div ng-app="myApp" ng-controller="myCtrl">

    <div ng-repeat="(key, value) in events | groupBy: 'date'">
      - {{key}}
      <div ng-repeat="val in value">
        * {{val.event}}
      </div>
      <br>
    </div>

  </div>

</body>
</html>