EF6 Ignoring related data - entity-framework

Question

Scenario
public class Product : Entity, IAggregateRoot
{
public string Name { get; set; }
public string Dimension { get; set; }
public decimal Volume { get; set; }
public bool Featured { get; set; }
public Farm Farm { get; set; }
public int FarmId { get; set; }
/// <summary>
/// Sell Price
/// </summary>
public decimal BidPrice { get; set; }
public int QuantityAvaliable { get; set; }
public ICollection<Image> Images { get; set; }
public string Description { get; set; }
public Category Category { get; set; }
public int CategoryId { get; set; }
public DateTime Created { get; set; }
public DateTime? Modified { get; set; }
}
public class Category : Entity, IAggregateRoot
{
public string Title { get; set; }
public string CategoryImage { get; set; }
public Category Parent { get; set; }
public DateTime Created { get; set; }
public DateTime? Modified { get; set; }
}
Relationship setup
public class ProductMap : EntityTypeConfiguration<Product>
{
public ProductMap()
{
HasKey(x => x.Id);
Property(x => x.Created).HasColumnType("DateTime");
Property(x => x.Modified).HasColumnType("DateTime");
Property(x => x.BidPrice).HasColumnType("Decimal");
#region RELATIONSHIP
//BelongsTo
HasRequired(x => x.Farm);
HasRequired(x => x.Category);
HasMany(x => x.Images);
#endregion
}
So I have this two model where I need to bring the data from Product model with Category information
I have checked my database, the data is consistent, the Product record have the FK for the Category record.
but when I try to get Product Data using EF6, the category information doesnt come, I get a null object.
Because of = () =>
{
_product = _repository.Find(p => p.Id == 1, p => p.Category);
};
It should_not_be_bull = () =>
_product.Category.ShouldNotBeNull();
the response from data base is for Category is null. but the record is there.
I had it working properly before. for some random magic reason it just stop working.
THE FIND method
public virtual TEntity Find(Expression<Func<TEntity, bool>> predicate = null, params Expression<Func<TEntity, object>>[] includes)
{
var set = CreateIncludedSet(includes);
return (predicate == null) ?
set.FirstOrDefault() :
set.FirstOrDefault(predicate);
}
the CreateIncludeSet
private IDbSet<TEntity> CreateIncludedSet(IEnumerable<Expression<Func<TEntity, object>>> includes)
{
var set = CreateSet();
if (includes != null)
{
foreach (var include in includes)
{
set.Include(include);
}
}
return set;
}
the CreateSet method
private IDbSet<TEntity> CreateSet()
{
return Context.CreateSet<TEntity>();
}
MY DbContext implementation is here
https://github.com/RobsonKarls/FreedomWebApi/blob/dev/Source/Freedom.Infrastructure.DataAccess/Factories/FreedomDbContext.cs
all project is there too for further analisys
any help is valuable.
Thank you

Answer 1

The problem in your code is in this line in CreateIncludedSet method:
set.Include(include);
Yes, you include the data but you do not change you set. You should change it to something like:
set = set.Include(include);

Answer 2

Your code is a bit unclear, but try something like this....
_product = _repository.Include(p => p.Category).SingleOrDefault(x => x.Id == 1);
also see...
https://stackoverflow.com/a/7348694/6200410