Фальшивого дрессировщика в цирке быстро раскусили.

Course/DatabaseImplement/Models/DetailProduction.cs

@@ -14,7 +14,6 @@ namespace DatabaseImplement.Models
 		public int DetailId { get; set; }
 		[Required]
 		public int ProductionId { get; set; }
-
 		public virtual Detail Detail { get; set; } = new();
 		public virtual Production Production { get; set; } = new();
 	}

Course/DatabaseImplement/Models/Production.cs

@@ -68,7 +68,7 @@ namespace DatabaseImplement.Models
 			var productionDetails = context.DetailProductions.Where(rec => rec.ProductionId == model.Id).ToList();
 			if (productionDetails != null && productionDetails.Count > 0) 
 			{
-				context.DetailProductions.RemoveRange(productionDetails.Where(rec => model.ProductionDetails.ContainsKey(rec.ProductionId)));
+				context.DetailProductions.RemoveRange(productionDetails.Where(rec => !model.ProductionDetails.ContainsKey(rec.ProductionId)));
 				context.SaveChanges();
 			}
 			var production = context.Productions.First(x => x.Id == model.Id);

Course/TestingDatabase/Program.cs

@@ -14,3 +14,17 @@ ProductionStorage productionionStorage = new ProductionStorage();
 ProductStorage productStorage = new ProductStorage();
 MachineStorage machineStorage = new MachineStorage();
 GuarantorStorage guarantorStorage = new GuarantorStorage();
+
+
+productionionStorage.Update(new()
+{
+	Id = 4,
+	Name = "name",
+	Cost = 1,
+	UserId = 1,
+	ProductionDetails = new()
+	{
+		{1, detailStorage.GetElement(new() { Id = 1 }) },
+		{3, detailStorage.GetElement(new() { Id = 3 }) }
+	}
+});

README.md

@@ -1,2 +1,4 @@
 # Coursach
 
+Курсовая работа студентов группы ПИбд-21 Козырева Сергея и Блохина Дмитрия.
+Вариант 10.3 + 10.4. Завод "Иди работать" Исполнитель + Поручитель