ng-repeat is not updating when array is changed - angularjs

Question

I have an ng-repeat that isn't updating upon changing the data in the array that it is using. I've researched for quite a while but nothing seems to be working. Initially, when the page loads, the ng-repeat displays the first page of a dataset, upon getting new data (the next page) and setting that array with this data, the ng-repeat isn't noticing the change and never populates with the updated array. It would be greatly appreciated if someone could steer me in the right direction on this.
gatekeeper.controller('businessController', ['$scope', 'siteService', function($scope, siteService) {
$scope.page = 1;
$scope.resultsPerPage = 50;
$scope.maxPaginationSite = 10;
$scope.pageCount = 0;
$scope.resultCount = 0;
$scope.getBusinessSites = [];
function getBusinessSites()
{
siteService.getBusinessSites($scope.page, $scope.resultsPerPage).then(function(response) {
$scope.getBusinessSites = response.data;
console.log($scope.getBusinessSites);
$scope.resultCount = response.data[0].QueryCount;
$scope.page = response.data[0].Page;
$scope.pageCount = Math.ceil($scope.resultCount / 50);
});
}
getBusinessSites();
$scope.pageChanged = function () {
$scope.page = this.page;
getBusinessSites($scope.page, $scope.resultsPerPage);
};
}]);
<tbody ng-controller="businessController">
<tr ng-repeat="site in getBusinessSites">
<td>{{ site.SiteName }}</td>
<td class="tableButton">
<button ng-controller="ModalCtrl" type="button" class="btn btn-default" ng-click="open('lg')">
{{ site.ClientName }}
</button>
<br />
<b>Facilities:</b>
No Data Yet
</td>
<td>{{ site.Subdomain }}</td>
<td>
<a href={{ site.URL}}> {{ site.URL}} </a>
<br />
<b>Go-live Date: </b> No Data Yet
</td>
<td>No Data Yet</td>
<td>{{site.ChannelPartner}}</td>
<td>No Data Yet</td>
<td>No Data Yet</td>
<td>No Data Yet</td>
<td>No Data Yet</td>
</tr>
<div >
<uib-pagination class="pull-right" boundary-link-numbers="true" max-size="maxPaginationSite" boundary-links="true" total-items="resultCount" ng-model="page" ng-change="pageChanged()"></uib-pagination>
</div>
</tbody>

Answer 1

The problem is that ng-repeat has referenced on this initial empty array [], when you change $scope.getBusinessSites, you change this variable's reference, but ng-repeat still reference on that empty array in memory.
So, solution is write data directly to array your ng-repeat reference. You can do it with angular.extend function:
Change this line:
$scope.getBusinessSites = response.data;
On this one:
angular.extend($scope.getBusinessSites, response.data);
UPD:
Also, if you use loading data not once, you'll need to clear previously loaded data in that array:
// empties an array
$scope.getBusinessSites.length = 0;

Answer 2

Try wrapping the tbody inside of a div and but the controller in the div:
<div ng-controller="BusinessController">
<tbody>
<tr ng-repeat="site in getBusinessSites">
.
.
.
</tbody>
</div>
and I suggest naming the $scope.getBusinessSites to $scope.businessSites for avoiding confusion :)

Answer 3

The ng-repeat create its own scope. Try adding $parent to reference your variable on your current controller scope