2 лаба усл правки

.gitignore

@@ -14,6 +14,11 @@
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs
 
+# dll файлы
+*.dll
+
+/TravelCompany/ImplementationExtensions
+
 # Mono auto generated files
 mono_crash.*
 

TravelCompany/TracelCompanyFileImplement/Implements/ShopStorage.cs

@@ -88,7 +88,9 @@ namespace TravelCompanyFileImplement.Implements
         public bool MakeSale(ITravelModel model, int count)
         {
             var travel = source.Travels.FirstOrDefault(x => x.Id == model.Id);
-            int countInShops = source.Shops.SelectMany(x => x.ShopTravels).Sum(y => y.Key == model.Id ? y.Value.Item2 : 0);
+            int countInShops = source.Shops.SelectMany(x => x.ShopTravels)
+                .Where(y =>  y.Value.Item1.Id == model.Id)
+				.Sum(y => y.Value.Item2);
 
             if (travel == null || countInShops < count)
             {