How to relate the data in following scenario:
Ninja -> NinjaItem -> ItemList
So that NinjaItem-table would contain data of the items belonging to the Ninja? ItemList-table should contain only item-name and id.
I have the following that relates the Ninja to NinjaItem but I cannot figure out how to relate also NinjaItem to ItemList.
public class Ninja
{
public int ID { get; set; }
public string Name { get; set; }
public virtual List<NinjaItem> NinjaItem { get; set; }
}
public class NinjaItem
{
public int ID { get; set; }
public int NinjaID { get; set; }
public int ItemListID { get; set; }
public virtual List<ItemList> ItemList{ get; set; }
}
public class ItemList
{
public int Id { get; set; }
public string Name { get; set; }
}
Moved solution from question to answer:
SOLUTION:
I only needed two classes Ninja and ItemList and Entity Framework creates the third table linking items to ninjas.
public class Ninja
{
public Ninja ()
{
this.ItemLists = new HashSet<ItemList>();
}
public int NinjaId { get; set; }
public string Name { get; set; }
public virtual ICollection<ItemList> ItemLists { get; set; }
}
public class ItemList
{
public ItemList ()
{
this.Ninjas = new HashSet<Ninja>();
}
public int ItemListId { get; set; }
public string ItemName { get; set; }
public virtual ICollection<Ninja> Ninjas { get; set; }
}
Related
I am trying to use automapper 8.0.0 to fill a list of WorkViewModel.
This list is getting data from the Work class out of the database using entity framework.
How ever it looks like something is going wrong with initializing as throwing follows error:
InvalidOperationException: Mapper not initialized
What am I doing wrong?
I have setup the following code!
Startup.cs
services.AddAutoMapper();
Function being called:
public async Task<IEnumerable<WorkViewModel>> GetAllAsync()
{
IList<Work> works = await _context.Work.ToListAsync();
IList<WorkViewModel> viewModelList = Mapper.Map<IList<Work>, IList<WorkViewModel>>(works);
return viewModelList;
}
Configuration:
public class MappingProfile : Profile
{
public MappingProfile()
{
Mapper.Initialize(cfg =>
{
cfg.CreateMap<WorkViewModel, Work>();
});
}
}
WorkViewModel:
public class WorkViewModel
{
public int WorkID { get; set; }
public string Name { get; set; }
public byte[] Tumbmail { get; set; }
public string Discription { get; set; }
public string Client { get; set; }
public DateTime Date { get; set; }
public string PreviewLink { get; set; }
public string GitLink { get; set; }
public string DownloadLink { get; set; }
public int DetailID { get; set; }
public byte[] Banner { get; set; }
public string Documentation { get; set; }
public int CategoryID { get; set; }
public string Category { get; set; }
}
Work Model:
public class Work
{
[Key]
public int WorkID { get; set; }
[Display(Name = "Project Name")]
public string Name { get; set; }
[Display(Name = "Client name")]
public string Client { get; set; }
[Display(Name = "Description")]
public string Discription { get; set; }
[Display(Name = "Date")]
public DateTime Date { get; set; }
[Display(Name = "Thumbmail")]
public byte[] Tumbmail { get; set; }
[Display(Name = "Preview Link")]
public string PreviewLink { get; set; }
[Display(Name = "Git Link")]
public string GitLink { get; set; }
[Display(Name = "DownloadLink")]
public string DownloadLink { get; set; }
public WorkCategory workCategory { get; set; }
public WorkDetailed WorkDetailed { get; set; }
}
Only adding services.AddAutoMapper(); to the ConfigureServices method would not work for you. You have to configure AutoMapper as follows:
public void ConfigureServices(IServiceCollection services)
{
// Auto Mapper Configurations
var mappingConfig = new MapperConfiguration(mc =>
{
mc.AddProfile(new MappingProfile());
});
IMapper mapper = mappingConfig.CreateMapper();
services.AddSingleton(mapper);
services.AddMvc();
}
And also don't forget to install the AutoMapper.Extensions.Microsoft.DependencyInjection nuget package.
I have 3 tables in my database and these are the classes:
public class PRAT
{
public PRAT()
{
PRAT_RIC = new HashSet<PRAT_RIC>();
}
public int ID { get; set; }
public string PRATICA { get; set; }
public int ANNO { get; set; }
public string VARIANTE { get; set; }
[...] other fields
}
public class PRAT_RIC
{
public int ID { get; set; }
public int IDPRAT { get; set; }
public int IDANAG { get; set; }
public int? IDTITRIC { get; set; }
public virtual ANAGRAFI IDANAGNavigation { get; set; }
}
public class ANAGRAFI
{
public int ID { get; set; }
public string TIPO { get; set; }
public string TITOLO { get; set; }
public string COGNOME { get; set; }
public string NOME { get; set; }
public string CODFISC { get; set; }
}
So, the relations are:
Prat -> Prat_Ric (Prat.Id=Prat_Ric.IdPrat) -> Anagrafi (Anagrafi.Id=Prat_Ric.IdAnag)
These are the destination classes:
public class PraticaResource
{
public int ID { get; set; }
public string PRATICA { get; set; }
public int ANNO { get; set; }
public string VARIANTE { get; set; }
public ICollection<RichiedentiResource> RICHIEDENTI { get; set; }
}
public class RichiedentiResource
{
public int ID { get; set; }
public int IDANAG { get; set; }
public string TITOLO { get; set; }
public string COGNOME { get; set; }
public string NOME { get; set; }
public string CODFISC { get; set; }
public string TITRIC { get; set; }
}
I created the map with
CreateMap<PRAT_RIC, RichiedentiResource>()
.ForMember(p => p.COGNOME, opt => opt.MapFrom(ti => ti.IDANAGNavigation.COGNOME))
.ForMember(p => p.NOME, opt => opt.MapFrom(ti => ti.IDANAGNavigation.NOME));
Is it possible to map all the properties of RichiedentiResource to the ANAGRAFI fields with the same name so that i haven't to write every single field mapping?
Thank you.
If you don't need anything from the navigation class, then you can just skip it when mapping at the top level:
CreateMap<PRAT, PraticaResource>()
.ForMember(p => p.PRAT_RIC, opt => opt.MapFrom(src => src.PRAT_RIC.Select(x => x.IDANAGNavigation))
Then you just need the mapping from ANAGRAFI -> RichiedentiResource, which should work out the field mappings automatically.
I have two objects, Project is a DB entity and IProject which I am trying to save to the database:
public interface IProject
{
int ProjectID { get; set; }
string JobNumber { get; set; }
string JobName { get; set; }
string ProjectLocation { get; set; }
int? FeeTypeID { get; set; }
decimal? Fee { get; set; }
decimal? ConstructionCost { get; set; }
decimal? CostPerSquareFoot { get; set; }
decimal? SquareFoot { get; set; }
string Memo { get; set; }
DateTime? DateCompleted { get; set; }
int JobStatusID { get; set; }
int ProjectTypeID { get; set; }
}
//The inheritance is actually in a partial class that doesn't get overridden
public partial class Project : IProject
{
public Project()
{
this.ProjectContacts = new HashSet<ProjectContact>();
this.ProjectConsultants = new HashSet<ProjectConsultant>();
}
public int ProjectID { get; set; }
public string JobNumber { get; set; }
public string JobName { get; set; }
public Nullable<int> FeeTypeID { get; set; }
public Nullable<decimal> Fee { get; set; }
public int JobStatusID { get; set; }
public string Memo { get; set; }
public Nullable<decimal> Acreage { get; set; }
public Nullable<decimal> SquareFoot { get; set; }
public Nullable<decimal> ConstructionCost { get; set; }
public Nullable<decimal> BudgetPrice { get; set; }
public Nullable<decimal> ActualPrice { get; set; }
public Nullable<System.DateTime> DateCompleted { get; set; }
public Nullable<decimal> CostPerSquareFoot { get; set; }
public string ProjectLocation { get; set; }
public int ProjectTypeID { get; set; }
public Nullable<System.DateTime> StartDate { get; set; }
public Nullable<int> PhaseID { get; set; }
public string ProjectDescription { get; set; }
public Nullable<int> ArchitectID { get; set; }
public Nullable<int> ManagerID { get; set; }
public Nullable<int> ArchiveLocationID { get; set; }
public virtual ICollection<ProjectContact> ProjectContacts { get; set; }
public virtual FeeType FeeType { get; set; }
public virtual JobStatu JobStatu { get; set; }
public virtual ICollection<ProjectConsultant> ProjectConsultants { get; set; }
public virtual Person Person { get; set; }
public virtual ArchiveLocation ArchiveLocation { get; set; }
public virtual Person Person1 { get; set; }
public virtual Phase Phase { get; set; }
public virtual ProjectType ProjectType { get; set; }
}
I have my Map created:
Mapper.CreateMap<IProject, Data.Project>();
but for some reason whenever I call the map:
//mappingService is a wrapper I have around Automapper so that I can inject it
var project = _mappingService.Map<IProject, Data.Project>(request);
I get this error:
Missing type map configuration or unsupported mapping.
Mapping types:
RuntimeType -> FeeType
System.RuntimeType -> Renaissance.Data.FeeType
Destination path:
Project.FeeType.FeeType
Source value:
System.Decimal
I am not at any point trying to do that. The names match and even if I specifically tell it to map with:
.ForMember(dest => dest.Fee, opt => opt.MapFrom(src => src.Fee))
It still errors with the same message.
What am I missing?
UPDATE
This works:
.ForMember(dest => dest.FeeType, opt => opt.Ignore());
I think it is a hack that I need to do that. I shouldn't have to ignore a property in the destination that does not exist / is not named the same as something in the source property.
i want use multiple model in one view and add records in multiple table from view
my db like below image:
(i work with vs2012 mvc4 and EF)
i create four model for each table and class "PreOrder" for repository of all
public class Orders
{
public long OrdersId { get; set; }
public string CustomerId { get; set; }
public long OrderListId { get; set; }
public int? CountProduct { get; set; }
public string CountPrice { get; set; }
public string VisitorsName { get; set; }
public DateTime? OrderDate { get; set; }
}
public class Product
{
public string ProductID { get; set; }
public string NameProduct { get; set; }
public string Price { get; set; }
}
public class Customers
{
public string CustomerID { get; set; }
[DisplayFormat(NullDisplayText = "-")]
public string Name { get; set; }
[DisplayFormat(NullDisplayText = "-")]
...
}
public class OrderList
{
public long OrderListID { get; set; }
public Nullable<long> OrdersId { get; set; }
public string ProductId { get; set; }
public Nullable<int> Count { get; set; }
public Nullable<decimal> DisCount { get; set; }
}
public class PreOrder
{
public Customers _Customer { set; get; }
public Product _Product { set; get; }
public Orders _Order { set; get; }
public OrderList _OrderList { set; get; }
}
i want use name,family,customerid from tblcustomers
and productId,NameProduct,Price from tblProducts
and all fields of tblOrders and tblOrderList
how can i create one view to fill tables Orders and OrderList??
i solved problem like below article:
How to Use ViewModel with ASP.NET MVC ?
How to Use ValueInjecter with Asp.net MVC ViewModel ?
I have a problem with devising a many to many relationship in code first. EF is creating the Junction table and associating the Fk's as I would expect, however when i try to access the User's MailingList collection, there are no entries.
I've implemented test data on Initialise via Seeding, the data is al present in the database.
I think the problem lies with the constructors for Users and MailingLists, but I'm uncertain. I want to be able to navigate the navigational property of User.MailingLists.
var user = db.Users.Find(1);
Console.WriteLine("{0}", user.EmailAddress); //This is Fine
Console.WriteLine("{0}", user.Address.PostCode); /This is Fine
foreach (MailingList ml in user.MailingLists) // this is 0
{
Console.WriteLine("{0}", ml.Name);
}
My model is below:-
public class User : IEntityBase
{
public User()
{
MailingLists = new List<MailingList>();
}
public int Id { get; set; }
public string Forename { get; set; }
public string Surname { get; set; }
public string EmailAddress { get; set; }
public DateTime? DateLastUpdated { get; set; }
public DateTime DateCreated { get; set; }
public bool IsDeleted { get; set; }
public virtual Address Address { get; set; }
public ICollection<MailingList> MailingLists { get; set; }
}
public class MailingList : IEntityBase
{
public MailingList()
{
Users = new List<User>();
}
public int Id { get; set; }
public string Name { get; set; }
public DateTime? DateLastUpdated { get; set; }
public DateTime DateCreated { get; set; }
public bool IsDeleted { get; set; }
public ICollection<User> Users { get; set; }
}
public class Address : IEntityBase
{
public int Id { get; set; }
public string AddressLine1 { get; set; }
public string AddressLine2 { get; set; }
public string AddressLine3 { get; set; }
public string City { get; set; }
public string County { get; set; }
public string PostCode { get; set; }
public DateTime? DateLastUpdated { get; set; }
public DateTime DateCreated { get; set; }
public bool IsDeleted { get; set; }
}
Any suggestions welcome.
You are neither eager loading the MailingList entries with the query, nor fulfulling the requirements for a lazy loading proxy so there is no way EF can populate the collection.
To allow lazy loading, change the MailingList property to be virtual to allow the EF proxy to override it.
To use eager loading, use Include() (an extension method in System.Data.Entity) in the query to specify that the MailingList should be loaded.