cot

git/JurasicZoo/ZooDataBaseImplement/Implements/CostStorage.cs

@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooContracts.BindingModels;
+using ZooContracts.SearchModels;
+using ZooContracts.StorageContracts;
+using ZooContracts.ViewModels;
+using ZooDataBaseImplement.Models;
+
+namespace ZooDataBaseImplement.Implements
+{
+    internal class CostStorage : ICostStorage
+    {
+        public List<CostViewModel> GetFullList()
+        {
+            using var context = new ZooDatabase();
+            return context.Costs
+            .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public List<CostViewModel> GetFilteredList(CostSearchModel
+       model)
+        {
+            if (string.IsNullOrEmpty(model.CostName))
+            {
+                return new();
+            }
+            using var context = new ZooDatabase();
+            return context.Costs
+            .Where(x => x.CostName.Contains(model.CostName))
+           .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public CostViewModel? GetElement(CostSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.CostName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ZooDatabase();
+            return context.Costs
+            .FirstOrDefault(x =>
+           (!string.IsNullOrEmpty(model.CostName) && x.CostName ==
+           model.CostName) ||
+            (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+        public CostViewModel? Insert(CostBindingModel model)
+        {
+            var newCost = Cost.Create(model);
+            if (newCost == null)
+            {
+                return null;
+            }
+            using var context = new ZooDatabase();
+            context.Costs.Add(newCost);
+            context.SaveChanges();
+            return newCost.GetViewModel;
+        }
+        public CostViewModel? Update(CostBindingModel model)
+        {
+            using var context = new ZooDatabase();
+            var component = context.Costs.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+        public CostViewModel? Delete(CostBindingModel model)
+        {
+            using var context = new ZooDatabase();
+            var element = context.Costs.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Costs.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

git/JurasicZoo/ZooDataBaseImplement/Models/Cost.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooContracts.BindingModels;
+using ZooContracts.ViewModels;
+using ZooDataModels.Models;
+
+namespace ZooDataBaseImplement.Models
+{
+    public class Cost : ICostModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string CostName { get; set; } = string.Empty;
+        [Required]
+        public double CostPrice { get; set; }
+        [ForeignKey("CostID")]
+        public virtual List<Route> Routes { get; set; } = new();
+        public static Cost? Create(CostBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Cost()
+            {
+                Id = model.Id,
+                CostName = model.CostName,
+                CostPrice = model.CostPrice,
+            };
+        }
+        public void Update(CostBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            CostName = model.CostName;
+            CostPrice = model.CostPrice;
+        }
+        public CostViewModel GetViewModel => new()
+        {
+            Id = Id,
+            CostName = CostName,
+            CostPrice = CostPrice,
+        };
+    }
+}
+

git/JurasicZoo/ZooDataBaseImplement/ZooDatabase.cs

@@ -25,6 +25,7 @@ namespace ZooDataBaseImplement
         public virtual DbSet<Route> Routes { set; get; }
         public virtual DbSet<RoutePreserve> RoutePreserves { set; get; }
 		public virtual DbSet<Preserve> Preserves { set; get; }
- 
+        public virtual DbSet<Cost> Costs { set; get; }
+
     }
 }