AUTO MAPPING OBJECT - FAST FOOD - WEB PROJECT

10.Auto Mapping Objects - WebProject/FastFood/FastFood.Data/FastFood.Data.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.1.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.1.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FastFood.Models\FastFood.Models.csproj" />
+  </ItemGroup>
+
+</Project>

10.Auto Mapping Objects - WebProject/FastFood/FastFood.Data/FastFoodContext.cs

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+namespace FastFood.Data
+{
+    using Microsoft.EntityFrameworkCore;
+    using Models;
+
+    public class FastFoodContext : DbContext
+    {
+        public FastFoodContext()
+        {
+
+        }
+
+        public FastFoodContext(DbContextOptions<FastFoodContext> options)
+            : base(options)
+        {
+        }
+
+        public DbSet<Category> Categories { get; set; }
+
+        public DbSet<Employee> Employees { get; set; }
+
+        public DbSet<Item> Items { get; set; }
+
+        public DbSet<Order> Orders { get; set; }
+
+        public DbSet<OrderItem> OrderItems { get; set; }
+
+        public DbSet<Position> Positions { get; set; }
+
+        protected override void OnModelCreating(ModelBuilder builder)
+        {
+            builder.Entity<OrderItem>()
+                .HasKey(oi => new { oi.OrderId, oi.ItemId });
+
+            builder.Entity<Position>()
+                .HasAlternateKey(p => p.Name);
+
+            builder.Entity<Item>()
+                .HasAlternateKey(i => i.Name);
+        }
+    }
+}