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using System.Data.Entity; | |
using MySample.Entities; | |
namespace MySample.Data | |
{ | |
public class MySampleDbContext : DbContext | |
{ | |
public IDbSet<Product> Products { get; set; } | |
public IDbSet<ProductCategory> ProductCategories { get; set; } | |
public IDbSet<Order> Orders { get; set; } | |
public IDbSet<OrderLineItem> OrderLineItems { get; set; } | |
public MySampleDbContext() | |
: base("name=MySampleDbConnection") | |
{ | |
this.Configuration.LazyLoadingEnabled = true; | |
} | |
public MySampleDbContext(string connectionString) | |
: base(connectionString) | |
{ | |
this.Configuration.LazyLoadingEnabled = true; | |
} | |
protected override void OnModelCreating(DbModelBuilder modelBuilder) | |
{ | |
modelBuilder.Entity<Order>().HasKey(o => o.Id); | |
modelBuilder.Entity<Order>().HasMany(o => o.LineItems).WithRequired().WillCascadeOnDelete(true); | |
modelBuilder.Entity<OrderLineItem>().HasKey(o => o.Id); | |
modelBuilder.Entity<OrderLineItem>().HasRequired(o => o.Product).WithMany().WillCascadeOnDelete(true); | |
modelBuilder.Entity<Product>().HasKey(o => o.Id); | |
modelBuilder.Entity<Product>().HasRequired(o => o.Category).WithMany().WillCascadeOnDelete(true); | |
modelBuilder.Entity<ProductCategory>().HasKey(o => o.Id); | |
} | |
} | |
} |
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