By utilizing the two-phase linking process, you can effectively manage and access information regarding child elements. Initially, during the "pre-link phase", all children can be registered. Subsequently, in the "post-link phase", the necessary details become available for manipulation.
.directive('parent', function () {
return {
controller: function () {
this.childCount = {
pre: 0,
post: 0
};
},
link: function () {}
};
})
.directive('child', function () {
return {
require: '^parent',
compile: function () {
return {
pre: function ($scope, $element, $attrs, parentCtrl) {
++parentCtrl.childCount.pre;
},
post: function ($scope, $element, $attrs, parentCtrl) {
++parentCtrl.childCount.post;
if (parentCtrl.childCount.post === parentCtrl.childCount.pre) {
// ... (this runs only on the last linked child)
}
}
};
}
};
})
This approach ensures that crucial information is accessible during the linking of the final child element.
If immediate access to this data is not required, an alternative method involves registering all child controllers within the parent controller. Subsequently, a function from the last registered child controller can be executed within the parent's post-link functionality.