Dealing with situations where an Angular component's route lacks a resolver

Question

Dealing with situations where an Angular component's route lacks a resolver

I have a component that handles both creating new items and updating existing ones. I have set up a Resolver for the 'edit/:id' route, but have not used one for the 'new' route.

  ngOnInit() {
    if (!(this.route.snapshot.url[0].path === '/new')) {
      this.route.data
      .subscribe((data: { project: Project}) => {
        this.project= data.project;
      });
    }
  }

I have been able to retrieve two different URLs, one showing the full path and the other only displaying the last part of the path.

this.route.snapshot.url[0].path
// Result: 'new'

this.router.url
// Result: '/admin/projects/new'

I am exploring better ways to determine when to load resolver data and when not to. Is using the URL a good approach? If so, which URL variable would you recommend?

angular typescript angular-routing angular-router

Answer 1

Answer №1

One way to differentiate between adding a new item or editing an existing one is by using route data.

Here's how you can implement it in your router:

{path: 'admin/projects/:id', component: YourComponent, data: {action: 'edit'}},

And in your component:

ngOnInit(): void {
    if (this.route.snapshot.data['action'] === 'edit') {
        this.route.data.subscribe((data: { project: Project}) => {
            this.project = data.project;
        });
    }
}

It's not necessarily better than using URLs for identification purposes, but it's another approach you can consider.

Answer 2

One way to differentiate between adding a new item or editing an existing one is by using route data.

Here's how you can implement it in your router:

{path: 'admin/projects/:id', component: YourComponent, data: {action: 'edit'}},

And in your component:

ngOnInit(): void {
    if (this.route.snapshot.data['action'] === 'edit') {
        this.route.data.subscribe((data: { project: Project}) => {
            this.project = data.project;
        });
    }
}

It's not necessarily better than using URLs for identification purposes, but it's another approach you can consider.

Dealing with situations where an Angular component's route lacks a resolver

Answer №1

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