Problem implementing update method in Angular 2+

Question

I’m using Mongodb’s data bank. I believe that most understand that to update a record it is of utmost importance to take the key identifier, ie the _id, I am managed to get the registry identifier key by doing so;

ngOnInit() {
    const codigoLancamento = this._route.snapshot.params['id'];
 }

But I have no idea how my method will receive this record through the method below;

onSubmit(){
    var id;
    this._restaurantAdminService.editRestaurant( id , this.restaurant).subscribe(
      response => {
        if(!response.restaurant) {
          this.status = 'error';
        } else {
          this.status = 'success';
          this.restaurant = response.restaurant;




        }
    },
      error => {
        var errorMessage = <any>error;

        if(errorMessage != null){
          this.status = 'error';
        }
      }
    );
  }

I’m open to any questions you need to help me solve this problem.

Answer 1

I believe that the only purpose is to consider "const codigoLancamento" as a variable of scope of ngOnInit. This variable had to be from the scope of the Component, for you to access it in Submit.

codigoLancamento;

ngOnInit() {
    this.codigoLancamento = this._route.snapshot.params['id'];
}

onSubmit(){
    var id = this.codigoLancamento;
    this._restaurantAdminService.editRestaurant( id , this.restaurant).subscribe(
      response => {
        if(!response.restaurant) {
          this.status = 'error';
        } else {
          this.status = 'success';
          this.restaurant = response.restaurant;




        }
    },
      error => {
        var errorMessage = <any>error;

        if(errorMessage != null){
          this.status = 'error';
        }
      }
    );
  }