angularjs: how to invoke controller based on his parent results - angularjs

Question

I'm moving my very first steps with angularjs.
I have a controller which does a call to a service, which returns a list of urls (parent).
I would like to render a html ul for which each li is rendered by another controller (children) with its own template. I imagine something like this:
<ul ng-controller="ListCtrl">
<li ng-repeat="element in elements">
<div ng-controller="DetailCtrl">
{{oneField}} - {{anotherField}}
</div>
</li>
</ul>
The first controller is easy to implement:
myApp.controller('ListCtrl', function ($scope, $http) {
$http.get('services/elements')
.success(function(data) {
$scope.elements = data;
});
});
But for the second I have a problem, since I can't figure out how the controller could know which url use for the ajax call (DYNAMYC_URL):
myApp.controller('DetailCtrl', function ($scope, $http) {
$http.get(DYNAMYC_URL)
.success(function(data) {
$scope.element = data;
});
});
Could you please suggest me which is the best way in angular to approach this problem?
I've also considered to do many calls inside the first controller, but it doesn't seem a clean solution to me.

Answer 1

We will try to maintain the state of childRenderUrl function call in element while
initializing the element itself in ng-unit attribute.
Instead of DetailCtrl
We write a function renderChild defined as
$scope.renderChild =function(element)
{
$http.get(element.url)
.success(function(data) {
// add all required fields to element here
element.otherField=data.otherField;
element.sometherField=data.sometherField;
//a $scope.$digest may be required here
});
}
Your display logic would be
<ul ng-controller="ListCtrl">
<li ng-repeat="element in elements">
<div ng-init="renderChild(element)">
{{element.oneField}} - {{element.anotherField}}
</div>
</li>
</ul>
On initializing we would call the renderChild method which would
add two properties to the element object that would be aptly displayed by
expressions {{element.oneField}} - {{element.anotherField}}