accept-invitation.js

// frontend/app/routes/accept-invitation.js
import Ember from 'ember';
import config from '../config/environment';

const { inject: { service }, isEmpty } = Ember;

export default Ember.Route.extend({
  session: service('session'),
  beforeModel() {
    if (this.get('session.isAuthenticated')) {
      this.get('session').invalidate();
    }
  },

  model() {
    return Ember.Object.create({ password: null, password_confirmation: null, invitation_token: null });
  },

  afterModel(model, transition) {
    let invitationToken = transition.queryParams.invitation_token;
    if (isEmpty(invitationToken)) {
      this.transitionTo('dashboard');
    } else {
      model.set('invitation_token', invitationToken);
    }
  },

  actions: {
    submit(model) {
      let body = { user: model.getProperties('invitation_token', 'password', 'password_confirmation') };
      Ember.$.ajax({
        url: `${config.APP.API_HOST}/users/invitation`,
        type: 'PUT',
        data: body,
      }).then(() => {
        this.transitionTo('login');
      });
    }
  }
});