Edition 0 Updated to asp. Net core 0

override
void
OnModelCreating
(ModelBuilder modelBuilder) 
{ 
// ...
modelBuilder.
ApplyConfiguration
(
new
OrderEntityTypeConfiguration
()); 
// Other entities' configuration ...
} 
// At OrderEntityTypeConfiguration.cs from eShopOnContainers
class
OrderEntityTypeConfiguration : IEntityTypeConfiguration 
{ 
public
void
Configure
(EntityTypeBuilder orderConfiguration) 
{ 
orderConfiguration.
ToTable
(
"orders"
, OrderingContext.
DEFAULT_SCHEMA
); 

---

247 
CHAPTER 6 | Tackle Business Complexity in a Microservice with DDD and CQRS Patterns 
// Other configuration
var
navigation = 
orderConfiguration.
Metadata
.
FindNavigation
(
nameof
(Order.
OrderItems
)); 
//EF access the OrderItem collection property through its backing field
navigation.
SetPropertyAccessMode
(PropertyAccessMode.
Field
); 
// Other configuration
} 
} 
When you use fields instead of properties, the 
OrderItem
entity is persisted as if it had a 
List
property. However, it exposes a single accessor, the 
AddOrderItem
method, for 
adding new items to the order. As a result, behavior and data are tied together and will be consistent 
throughout any application code that uses the domain model. 
Implement custom repositories with Entity Framework Core 
At the implementation level, a repository is simply a class with data persistence code coordinated by a 
unit of work (DBContext in EF Core) when performing updates, as shown in the following class: 
// using directives...
namespace
Microsoft.
eShopOnContainers
.
Services
.
Ordering
.
Infrastructure
.
Repositories
{