Loading Child Controller Instead of Parent Controller in Angular UI-Router

In my Angular application, I have set up the following nested routes:

.state('mapping', {
    url: '/mapping',
    templateUrl: 'app/components/mapping/mapping.html',
    controller: 'MapCtrl as map',
    abstract: true,
    authenticate: true
})
.state('mapping.all', {
    url: '',
    templateUrl: 'app/components/mapping/partials/all.html',
    authenticate: true
})
.state('mapping.project', {
    url: '/:projectName',
    controller: 'ProjectCtrl as proj',
    templateUrl: 'app/components/mapping/partials/project.html',
    authenticate: true
})

Whenever I try to access 'mapping.project', the ProjectCtrl does not get loaded. Instead, it seems like the parent state's MapCtrl is being used.

Is there a way for me to replace the parent controller with a specific controller that is tailored to the child state?

I need this unique controller to be loaded every time I navigate to the particular child state. It is not feasible to use a single parent controller for all child states in this case.

Answer №1

There is a strong relationship between a controller and a view, as opposed to the state. This implies that:

...if ProjectCtrl is never loaded when accessing mapping.project....

It indicates that the view was not properly loaded. Specifically, the parent view (

app/components/mapping/mapping.html
) did not have the necessary target:

<div ui-view=""></div>

To address this issue, adding a target (ui-view="") into the parent template will allow the child state to inject its view into that location without replacing the parent controller. This action will:

  • invoke the parent ctrl upon accessing the parent (or child directly)
  • ensure that if the child is accessed from the parent, the parent ctrl will not be reinitialized, but the child ctrl will be initiated

For more in-depth information, refer to the following resources:

  • Angular UI Router - Nested States with multiple layouts
  • Nested states or views for layout with leftbar in ui-router?
  • How to disable data inheritance of angular ui router states

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