add structure

lib/vo/product.dart

@@ -0,0 +1,123 @@
+
+import '../util.dart';
+
+class Product {
+  String accountID;
+  String id;
+  String name;
+  int price;
+  int color;
+  String action;
+  int quantity;
+  int displayOrder;
+  Map<String, int> priceHistory;
+  bool isDisable;
+
+  // used for buyer registration
+  int dailySale;
+  int storageCapacity;
+  int dailyQuota;
+
+  int oldPirce;
+
+  //used for do item
+  String storageID;
+  String storageName;
+
+  String get getname => this.name;
+  int get getprice => this.price;
+  List<ProductPrice> get getPrices => this
+      .priceHistory
+      .entries
+      .map((k) => ProductPrice(
+          name: name,
+          price: k.value,
+          date: DateUtil.toLocal(DateTime.parse(k.key)),
+          displayOrder: displayOrder))
+      .toList();
+
+  Product(
+      {this.accountID,
+      this.id,
+      this.name,
+      this.price,
+      this.color,
+      this.action,
+      this.priceHistory,
+      this.dailySale,
+      this.storageCapacity,
+      this.dailyQuota,
+      this.quantity,
+      this.oldPirce,
+      this.displayOrder,
+      this.storageID,
+      this.storageName,
+      this.isDisable});
+
+  factory Product.clone(Product p) {
+    return Product(
+        accountID: p.accountID,
+        id: p.id,
+        name: p.name,
+        price: p.price,
+        color: p.color,
+        displayOrder: p.displayOrder,
+        action: p.action,
+        isDisable: p.isDisable);
+  }
+
+  factory Product.fromJson(Map<String, dynamic> json) {
+    return Product(
+      name: json['name'],
+      price: int.parse(json['price']),
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return {
+      'account_id': accountID,
+      'id': id,
+      'name': name,
+      'price': price,
+      'color': color,
+      'display_order': displayOrder,
+      'action': action,
+      'disable': isDisable
+    };
+  }
+
+  factory Product.fromMap(Map<String, dynamic> map, String id) {
+    return Product(
+        id: id,
+        name: map['name'] ?? map['product_name'],
+        price: map['price'],
+        color: map['color'],
+        quantity: map['quantity'],
+        displayOrder: map['display_order'],
+        priceHistory: map['price_history']?.cast<String, int>(),
+        storageID: map['storage_id'],
+        storageName: map['storage_name'],
+        isDisable: map['disable']);
+  }
+
+  @override
+  String toString() {
+    return 'User{name: $name, price: $price,storageID:$storageID,storageName:$storageName,isDisable:$isDisable}';
+  }
+}
+
+class ProductPrice {
+  DateTime date;
+  int price;
+  String name;
+  int displayOrder;
+  ProductPrice({this.date, this.price, this.name, this.displayOrder});
+
+  int compareTo(ProductPrice other) {
+    int r = other.date.compareTo(this.date);
+    if (r == 0) {
+      return this.displayOrder.compareTo(other.displayOrder);
+    }
+    return r;
+  }
+}