Troubleshooting: Why isn't my Angular directive being updated by the controller?

My directive is responsible for displaying a detail screen when a row is clicked. I am currently working on updating the encounter within this directive. Take a look at the code below:

angular.module('app').directive('chatContainer', function() {
  return {
    scope: {
      encounter: '=',
      count: '='
    },
    templateUrl: 'views/chat.container.html',
    link: function(scope, elem) {
  };
});

This is the template for the directive:

<div class="span4 chat-container">
 <h5 class="chat-header">
  <span class="container">{{encounter.patient.firstName }} {{encounter.patient.lastName}}</span>
  </h5>
</div>

The following snippet shows where the directive is declared within the HTML:

<div chat-container encounter="selectedEncounter" count="count"></div>

Here is the controller that is triggered upon clicking a row.

angular.module('app').controller('EncounterCtrl', function ($scope, singleEncounter) {

  $scope.count = 500;

  $scope.selectedIndex = -1;

  $scope.selectedEncounter = -1;

  $scope.getSelectedRow = function($index) {
    $scope.selectedIndex = $index;
    $scope.selectedEncounter = $scope.encounters[$scope.selectedIndex];
  };

  $scope.encounter = singleEncounter.selectedEncounter;
});

When I call the getSelectedRow() function, it successfully updates the selectedEncounter. However, the binding does not reflect this change in my chatContainer. Despite declaring the encounter with the scope type of =, it seems like something is missing. Can you point me in the right direction?

Answer №1

It is important to trigger $apply() for the update, but it's advisable to keep the logic for handling values within the chatContainer directive instead of the controller.

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