AutoMapper Flattering dont work in .net Core 2.0 #3980

8 Answer(s)

• 

  0

  dfielec created 7 years ago

  In reality, the repository gives bad results. here an example

  public class Parent: FullAuditedEntity
      {
          [Required]
          public virtual string Name { get; set; }
  
          public virtual ICollection<Child> Children{ get; set; }
      }
  

  public class Child: FullAuditedEntity
      {
          [ForeignKey("ParentId")]
          public virtual Parent Parent{ get; set; }
          [Required]
          public virtual int ParentId { get; set; }
  
          public virtual string Name { get; set; }
      }
  

  [AutoMapFrom(typeof(Parent))]
      public classChildDto : FullAuditedEntityDto
      {
          public string Name { get; set; }
  
          public int ParentId { get; set; }
  
          public string ParentName { get; set; }
      }
  

  public class ChildAppService : MyAppServiceBase, IChildAppService
      {
          private readonly IRepository<Child> _childRepository;
  
          public ChildAppService(IRepository<Child> childRepository)
          {
              _childRepository = childRepository;
          }
  
          public async Task<ListResultDto<ParentDto>> GetChildren()
          {
              var children= await _childRepository.GetAllListAsync();
  
              return new ListResultDto<ChildDto>(ObjectMapper.Map<List<ChildDto>>(children));
          }
      }
  

  in the children list, the children[i].Parent is always null

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• 

  0

  aaron created 7 years ago

  Support Team

  EntityFrameworkCore requires eager-loading:

  var children = await _childRepository.GetAllIncluding(c => c.Parent).ToListAsync();
  

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• 

  0

  dfielec created 7 years ago

  Thank you very much aaroon, it works.

  Now, how to add multiple attributes?

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• 

  0

  soonjoo created 7 years ago

  <cite>DFIELEC: </cite> Thank you very much aaroon, it works.

  Now, how to add multiple attributes?

  var children = await _childRepository
  .GetAllIncluding(c => c.FirstParent)
  .Include(c => c.SecondParent)
  .ToListAsync();
  

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• 

  0

  aaron created 7 years ago

  Support Team

  GetAllIncluding accepts params, so simply use one or more commas:

  var children = await _childRepository
      .GetAllIncluding(
          c => c.Parent,
          c => c.AnotherRelationship)
      .ToListAsync();
  

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• 

  0

  dfielec created 7 years ago

  Thank you very much

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• 

  0

  jseger created 7 years ago

  So does this mean that extending AsyncCrudAppService won't work as expected? I mean, it won't include nested collections?

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• 

  0

  aaron created 7 years ago

  Support Team

  As explained above, EntityFrameworkCore requires eager-loading.

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