productStorage

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/ComponentStorage.cs

@@ -12,7 +12,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         {
             using var context = new ComputerHardwareStoreDBContext();
             return context.Components
-                .Select(x => x.GetViewModel)
+                .Select(c => c.GetViewModel)
                 .ToList();
         }
 
@@ -20,12 +20,12 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         {
             if (string.IsNullOrEmpty(model.Name))
             {
-                return new ();
+                return new();
             }
             using var context = new ComputerHardwareStoreDBContext();
             return context.Components
-                .Where(x => x.Name.Contains(model.Name))
+                .Where(c => c.Name.Contains(model.Name))
-                .Select(x => x.GetViewModel)
+                .Select(c => c.GetViewModel)
                 .ToList();
         }
 
@@ -37,10 +37,9 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
             }
             using var context = new ComputerHardwareStoreDBContext();
             return context.Components
-                .FirstOrDefault(x =>
+                .FirstOrDefault(c =>
-                (!string.IsNullOrEmpty(model.Name)
+                (!string.IsNullOrEmpty(model.Name) && c .Name == model.Name) ||
-                && x.Name == model.Name)
+                (model.Id.HasValue && c.Id == model.Id))
-                || (model.Id.HasValue && x.Id == model.Id))
                 ?.GetViewModel;
         }
 
@@ -59,7 +58,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         public ComponentViewModel? Update(ComponentBindingModel model)
         {
             using var context = new ComputerHardwareStoreDBContext();
-            var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
+            var component = context.Components.FirstOrDefault(c => c.Id == model.Id);
             if (component == null)
             {
                 return null;
@@ -72,14 +71,14 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         public ComponentViewModel? Delete(ComponentBindingModel model)
         {
             using var context = new ComputerHardwareStoreDBContext();
-            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+            var element = context.Components.FirstOrDefault(c => c.Id == model.Id);
-            if (element != null)
+            if (element == null)
             {
+                return null;
+            }
             context.Components.Remove(element);
             context.SaveChanges();
             return element.GetViewModel;
         }
-            return null;
-        }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/ProductStorage.cs

@@ -0,0 +1,85 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class ProductStorage : IProductStorage
+    {
+        public List<ProductViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public List<ProductViewModel> GetFilteredList(ProductSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name)) 
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Where(p => p.Name.Contains(model.Name))
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public ProductViewModel? GetElement(ProductSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue) 
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .FirstOrDefault(c =>
+                (!string.IsNullOrEmpty(model.Name) && c.Name == model.Name) ||
+                (model.Id.HasValue && c.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public ProductViewModel? Insert(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newProduct = Product.Create(context, model);
+            if (newProduct == null)
+            {
+                return null;
+            }
+            context.Products.Add(newProduct);
+            context.SaveChanges();
+            return newProduct.GetViewModel;
+        }
+
+        public ProductViewModel? Update(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var product = context.Products.FirstOrDefault(p => p.Id == model.Id);
+            if (product == null)
+            {
+                return null; 
+            }
+            context.Update(model);
+            context.SaveChanges();
+            return product.GetViewModel;
+        }
+
+        public ProductViewModel? Delete(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var product = context.Products.FirstOrDefault(p => p.Id == model.Id);
+            if (product == null) 
+            {
+                return null;
+            }
+            context.Products.Remove(product);
+            context.SaveChanges();
+            return product.GetViewModel;
+        }
+    }
+}