lib/product_component.dart

   1 // Copyright (c) 2016, hackbard. All rights reserved. Use of this source code
   2 // is governed by a BSD-style license that can be found in the LICENSE file.
   3
   4 import 'dart:async';
   5
   6 import 'package:angular2/core.dart';
   7 import 'package:angular2/router.dart';
   8
   9 import 'product.dart';
  10 import 'product_service.dart';
  11 import 'product_category.dart';
  12 import 'product_category_service.dart';
  13
  14 import 'package:angular2_rbi/directives.dart';
  15
  16 @Component(
  17         selector: 'my-products',
  18         templateUrl: 'product_component.html',
  19         styleUrls: const ['product_component.css'],
  20         directives: const [MaterialTextfield,MaterialButton],
  21         providers: const [ProductService,ProductCategoryService]
  22 )
  23
  24 class ProductComponent implements OnInit {
  25         final ProductService _prodSrv;
  26         final ProductCategoryService _prodcatSrv;
  27         final RouteParams _routeParams;
  28         final Router _router;
  29
  30         String prod_category_id;
  31         String prod_category_name;
  32         String prod_name;
  33         double prod_price;
  34         int prodcnt;
  35
  36         List<Product> products;
  37         ProductCategory prodcat;
  38
  39         ProductComponent(this._prodSrv,this._prodcatSrv,
  40                          this._routeParams,this._router) {
  41                 prod_category_name='Category';
  42                 prod_category_id='ID';
  43         }
  44
  45         Future<Null> ngOnInit() async {
  46                 var catid=_routeParams.get('id');
  47                 if(catid!=null) {
  48                         products = await (_prodSrv.getByCategory(catid));
  49                         prodcat = await (_prodcatSrv.getById(catid));
  50                 }
  51                 prod_category_name=prodcat.name;
  52                 prod_category_id=prodcat.id;
  53                 prodcnt=products.length;
  54         }
  55
  56         Future<Null> updateProductCategory() async {
  57                 bool doupdate=false;
  58                 bool changecat=false;
  59                 if(prodcat.id!=prod_category_id) {
  60                         doupdate=true;
  61                         changecat=true;
  62                 }
  63                 if(prodcat.name!=prod_category_name) {
  64                         doupdate=true;
  65                 }
  66                 if(doupdate) {
  67                         if(changecat) {
  68                                 for(Product prod in products) {
  69                                         print('Debug: change category of '+
  70                                               prod.name);
  71                                         await _prodSrv.updateProd(
  72                                                 prod.id,
  73                                                 prod.name,
  74                                                 prod.price,
  75                                                 prod_category_id
  76                                         );
  77                                 }
  78                         }
  79                         print('Debug: Updating product category '+
  80                               prodcat.name+'/'+prodcat.id+' -> '+
  81                               prod_category_name+'/'+prod_category_id);
  82                         await _prodcatSrv.updateProdCategory(
  83                                 prodcat.id,
  84                                 prod_category_name,
  85                                 prod_category_id
  86                         );
  87                 }
  88         }
  89
  90         Future<Null> deleteProductCategory() async {
  91                 bool delete=false;
  92                 if(products.length==0) {
  93                         delete=true;
  94                 }
  95                 else {
  96                         print('Debug: Not deleting anything!');
  97                 }
  98                 if(delete) {
  99                         print('Debug: Deleting product category '+
 100                               prodcat.name+'/'+prodcat.id);
 101                         await _prodcatSrv.deleteProdCategory(prodcat.doc_id);
 102                 }
 103         }
 104
 105         Future<Null> createProduct() async {
 106                 if(prod_name==null || prod_price==null)
 107                         return;
 108                 print('Debug: Creating product '+prod_name+'/'+
 109                       prod_price.toString());
 110                 await _prodSrv.createProduct(prod_name,
 111                                              double.parse(prod_price),
 112                                              prod_category_id);
 113         }
 114
 115         choose(Product prod) {
 116                 goto_product(prod);
 117         }
 118
 119         Future<Null> goto_product(Product prod) => _router.navigate([
 120                 'ProductDetail',
 121                 {'id': prod.id.toString()}
 122         ]);
 123
 124 }
 125