Updating HTML element outside of ng-view
I have the below HTML on a page:
Angula
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<span>2021-02-13 23:22</span>
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<p>You'll need to inject $rootScope, then update it:</p>
<pre><code>function DetailController($scope, $rootScope, basketDetail) {
$rootScope.item = $rootScope.item || {};
$rootScope.item.basketCount = basketDetail.getCount();
//more code
}
</code></pre>
<p>There are a lot more ways to do this, but this is my first suggestion, because it's probably the easiest.</p>
<hr>
<p><strong>EDIT: per your request, other ways to do this...</strong></p>
<p>You could use $parent to push to your parent scope. The upside is it's pretty quick and clean... the downside is it's a little sloppy in that one of your controllers makes assumptions about what it's parent is to some degree (but that's still not terrible, really):</p>
<pre><code> {{item.basketCount}}
<div ng-controller="InnerCtrl">
</div>
function InnerCtrl($scope, basketDetail) {
$scope.$parent.item = $scope.$parent.item || {};
$scope.$parent.item.basketCount = basketDetail.getCount();
}
</code></pre>
<p>Then there's the method @asgoth mentioned above where you use nested controller and a method on the parent scope to update the parent scope. Valid, but like my other solution in this "other ways to do it" section, it relies on assumptions made about the controller's container, and it also relies on you creating an additional controller.</p>
<p>Finally, you could create a service. Now services aren't generally used this way, but you could use one this way.. Where you could take your basketDetail service, and use it to pass the value back and forth. Like so:</p>
<pre><code>app.factory('basketDetail', function() {
return {
items: { basketCount: 0 },
getCount: function() {
//return something here
return 123;
}
}
});
function FooCtrl($scope, basketDetail) {
$scope.items = basketDetail.items;
$scope.items.basketCount = basketDetail.getCount();
}
function BarCtrl($scope, basketDetail) {
$scope.items = basketDetail.items;
}
<div ng-controller="FooCtrl">
{{items.basketCount}}
</div>
<div ng-controller="BarCtrl">
{{items.basketCount}}
</div>
</code></pre>
<p>This works because the $scope in both controllers is keeping a reference to the same object, which is maintained by your basketDetail service. But again, this isn't really the recommended way. </p>
<p>All of that said: <strong>$rootScope, IMO is most likely what you're looking for.</strong></p>
<ul>
<li>It doesn't require the creation of an additional controller.</li>
<li>It doesn't require the creation of any additional function references.</li>
<li>Will not cause the creation of any additional parent/child Scope nesting and subsequent watches.</li>
</ul>
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