//Home.ts
role: any;
refresh:boolean = false;
constructor() {
    let role = {
          admin: false,
          user: false,
          guest: true
    };
    this.role = role;
    this.checkRole();
  }
    checkRole() {
        this.getRole().then((role) => {
          this.role = role;
            if (this.role.guest == false && this.refresh == true) {
                this.refreshPage();
            }
      }, (err) => {
          console.log("Error: " + err);
          this.checkRole();
      });
    }
    ngOnInit() {
        console.log("Refrescando");
        let refresh = this.navParams.get('id');
        this.refresh = refresh;
        console.log(refresh);
    }

//Login.ts
user: any;
pass: any;
data: any;
constructor() {
    this.user = "";
    this.pass = "";
    this.data = "";
}
login() {
        var err:boolean = true;
        if (this.user == "") {
            this.activeToast("No puedes dejar el usuario en blanco");
        } else if (this.pass == "") {
            this.activeToast("No puedes dejar la contraseña en blanco");
        } else {
            this.fetchData().subscribe((data) => {
                for (var i = 0;i<data.length;i++) {
                    if (this.user == data[i].user) {
                        if (this.pass == data[i].pass) {
                            err = false;
                            if (data[i].role == "user")
                                this.globalservices.loginUser();
                            else
                                this.globalservices.loginAdmin();
                        }
                    }
                }
                if (err) {
                    this.activeToast("Usuario o contraseña incorrectos");
                } else {
                    this.activeToast("Has iniciado sesion correctamente");
                    this.nav.popToRoot();
                    this.nav.push(HomePage);
                }
            });

        }
    }
    fetchData() {
        return this.http.get("assets/data.json").map((res:Response) => res.json().data);
    }
}