Added working edit transaction

lib/models/transaction_model.dart

@@ -14,18 +14,25 @@ class Transaction {
   const Transaction({
     this.id,
     required this.amount,
-    required this.transactionType,
+    required this.type,
     required this.budgetId,
-    required this.budgetCategoryId,
+    this.budgetCategoryId,
     required this.addedByUserId,
     required this.date,
+    this.memo,
     this.createdAt,
+    this.updatedAt,
+    this.hide = false,
   });
 
-  final int? id;
-  final int budgetId, budgetCategoryId, addedByUserId;
+  final int? id, budgetCategoryId;
+  final int budgetId, addedByUserId;
   final double amount;
-  final TransactionType transactionType;
+  final String? memo;
+  final TransactionType type;
+
+  @JsonKey(fromJson: boolFromJson, toJson: boolToJson)
+  final bool hide;
 
   @JsonKey(fromJson: dateFromJson, toJson: dateToJson)
   final DateTime date;
@@ -33,8 +40,26 @@ class Transaction {
   @JsonKey(fromJson: dateFromJson, toJson: dateToJson)
   final DateTime? createdAt;
 
+  @JsonKey(fromJson: dateFromJson, toJson: dateToJson)
+  final DateTime? updatedAt;
+
   factory Transaction.fromJson(Map<String, dynamic> json) =>
       _$TransactionFromJson(json);
 
+  factory Transaction.copyWith(Transaction trans, Map<String, dynamic> data) =>
+      Transaction(
+        id: data['id'] ?? trans.id,
+        amount: data['amount'] ?? trans.amount,
+        type: data['type'] ?? trans.type,
+        budgetId: data['budget_id'] ?? trans.budgetId,
+        budgetCategoryId: data['budget_category_id'] ?? trans.budgetCategoryId,
+        addedByUserId: data['added_by_user_id'] ?? trans.addedByUserId,
+        date: data['date'] ?? trans.date,
+        memo: data['memo'] ?? trans.memo,
+        createdAt: data['created_at'] ?? trans.createdAt,
+        updatedAt: data['updated_at'] ?? trans.updatedAt,
+        hide: data['hide'] ?? trans.hide,
+      );
+
   Map<String, dynamic> toJson() => _$TransactionToJson(this);
 }