Editing and Deleting Products in Firebase

import Controller from '@ember/controller';
import { action } from '@ember/object';
export default class AdminEditController extends Controller {
  @action
  editProduct() {
    const id = this.model.id;
    let title = this.get('model.product_title');
    let desc = this.get('model.desc');
    let price = this.get('model.price');
    let e = document.getElementById('category');
    let category = e.options[e.selectedIndex].value;
    let imglink = this.get('model.imglink');
    // let changed_values = {
    //   title: title,
    //   desc: desc,
    //   price: price,
    //   category: category,
    //   imglink: imglink,
    // };
    // console.log(changed_values);
    this.store.findRecord('product', id).then(function (product) {
      product.set('title', title);
      product.set('desc', desc);
      product.set('category_id', category);
      product.set('price', price);
      product.set('imglink', imglink);
      product.save();
    });
    this.transitionToRoute('admin');
  }
  @action
  deleteProduct() {
    const id = this.model.id;
    this.store.findRecord('product', id).then(function (product) {
      product.deleteRecord();
      product.save();
    });
    alert("Product Deleted");
    this.transitionToRoute('admin');
  }
}