I am using EmitMapper with Flattering Configuration form EmitMapper samples to map my Entities to DTOs.
The problem is the I am getting NullReferenceException in the case if the source value is the property of the object, which is null, for example:
public class User
{
public Guid Id { get; set; }
public Company Company { get; set; }
}
public class Company
{
public Guid Id { get; set; }
}
public class UserDTO
{
public Guid Id { get; set; }
public Guid CompanyId{ get; set; }
}
I am mapping User to UserDTO: var mapper = ObjectMapperManager.DefaultInstance.GetMapper<User, UserDTO>(
new FlatteringConfig()
);
var dto = mapper.Map(new User());
When EmitMapper will try to get CompanyId, it will call the getter of Company object Id property, but it is null.
Any help will be much appriciated.
Related
I'm having some problem with one of my data in strawberry shake. It's a simple query but when I try to create an object of it, the generated code dtoData ask for a type in the constructor.
All my other query don't required anything in the constructor.
I use the Dto for model in the ViewModel for mapping.
Example of a working one.
public clas ProjectModelVM : ViewModelBase
{
//The ProjectDtoInput class is created by the Generation code.
// If I create a new Instance of ProjectDtoInput the constructor is empty and it's working
// var project = new ProjectDtoInput()
public ProjectDtoInput _projectModel;
public ProjectModelVM(ProjectDtoInput projectModel)
{
_projectModel = projectModel;
}
}
the query is
query GetActiveProject{
activeProject{
cL_PROJET_NO,
cL_PROJET_NOM
}
}
And the Dto in the server side is
public class QmProdFormDto
{
public int? FormID { get; set; }
public string? FormName { get; set; }
public string? ProjectNo { get; set; }
public string? ProjectName { get; set; }
public string? DivName { get; set; }
public string? SubDivName { get; set; }
}
Example of a NON working one
public class PaintBrandModelVM : ViewModelBase
{
// The QmProdPaintDtoData class is created by the Generation code.
// If I create a new Instance of QmProdPaintDtoData the constructor ask me for some __type input
public QmProdPaintDtoData _paintBrandModel;
public PaintBrandModelVM(QmProdPaintDtoData paintBrandModel)
{
_paintBrandModel = paintBrandModel;
}
}
the query is
query GetPaintLst{
paintLst{
paintBrandID,
paintBrandName
}
}
And the Dto on the server side is
public class QmProdPaintDto
{
public int? PaintBrandID { get; set; }
public string? PaintBrandName { get; set; }
}
I don't understand why one of the DTO ask me for mendatory input.
Can someone give me a hand on this.
Tell me if you need more of the code.
Thanks.
Jc
I am using aspnetboilerplate and added below configuration in preintiliaze in module. I have also added data annotation Audited to my entity but still it is not working. My entity is inheriting from AuditedEntity as don't need deleted feature. Please help
Configuration.EntityHistory.IsEnabled = true; Configuration.EntityHistory.Selectors.Add(new NamedTypeSelector("Abp.AuditedEntities", type => typeof(AuditedEntity).IsAssignableFrom(type)));
I have taken reference from here Can't enable Entity History in ASP.NET Zero
Below is entity definition
[Audited]
public partial class QuestionResponse : AuditedEntity<long>
{
public long ApplicationId { get; set; }
public long QuestionId { get; set; }
public string Response { get; set; }
public string Remark { get; set; }
public bool IsActive { get; set; }
public Application Application { get; set; }
public AbpUsers CreatorUser { get; set; }
public AbpUsers LastModifierUser { get; set; }
public Question Question { get; set; }
}
AuditedEntity<long> is not assignable to AuditedEntity.
Add a selector based on the interface IAuditedEntity instead.
Configuration.EntityHistory.Selectors.Add(
new NamedTypeSelector("Abp.AuditedEntities", type =>
// typeof(AuditedEntity).IsAssignableFrom(type)));
typeof(IAuditedEntity).IsAssignableFrom(type)));
Reference
From aspnetboilerplate/aspnetboilerplate's AuditedEntity.cs:
public abstract class AuditedEntity : AuditedEntity<int>, IEntity
{
}
public abstract class AuditedEntity<TPrimaryKey> : CreationAuditedEntity<TPrimaryKey>, IAudited
{
...
}
Missing ApplicationUser:
ApplicationUser in model:
So i try to make User Manager by creating controller with ApplicationUser as model, but i can't find it on model class
I got the same problem but I solved it by creating another model class which does not inherit from identity and fetch the data to it and manage it with empty controller.
The model:
public class MyUser
{
public string Id { get; set; }
public string UserName { get; set; }
public string Email { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
and in the Controller:
public ActionResult Index()
{
var users = _context.Users.Select(x => new MyUser
{
Email=x.Email,
FirstName=x.FirstName,
Id=x.Id,
LastName=x.LastName,
UserName=x.UserName
}).ToList();
return View(users);
}
then generate your view.
Model:
[DataContract]
public class Employee
{
[DatabaseGenerated(DatabaseGeneratedOption.None)]
[DataMember(Name ="id")]
public int Id{ get; set; }
[DataMember(Name = "fullName")]
public string FullName { get; set; }
}
[DataContract]
public class Department
{
public Department()
{
this.Employees = new List<Employee>();
}
[DatabaseGenerated(DatabaseGeneratedOption.None)]
[DataMember(Name = "id")]
public int Id { get; set; }
[DataMember(Name = "name")]
public string Name { get; set; }
[DataMember(Name = "employees")]
public List<Employee> Employees { get; set; }
}
Controller
public HttpResponseMessage Get([FromUri]Department model)
{
if (ModelState.IsValid)
{
}
return new HttpResponseMessage(HttpStatusCode.OK);
}
Url : "http://localhost:2070/home/get/?id=1&name=IT&Employees=1,John"
I am trying to invoke above URL and the Model does not read the Employees. Other property like int,double,string,decimal are read by the Model.
Can anyone help me on what is the correct format in passing List thru Url.
Also, I dont want to decorate each of my class with modelbinders nor the parameter in my controller.
Tech : WebApi, .Net3.5
You need to specify the index of the list and property to bind with when using FromUri and list/array
Try it this way
http://localhost:2070/home/get/?id=1&name=IT&Employees[0].Id=1&Employees[0].Name=John
I have a class, which has 8 props / 8 columns in DB. But on a Edit page, i dont want to show the AddedDate or UserID field, since i dont want user to change it.
public class Voucher
{
public int ID { get; set; }
public string Title { get; set; }
public string SiteName { get; set; }
public string DealURL { get; set; }
public DateTime AddedDate { get; set; }
public DateTime? ExpirationDate { get; set; }
public string VoucherFileURL { get; set; }
public Guid UserID { get; set; }
}
Here is what I have for Edit controller:
// POST: /Voucher/Edit/5
[HttpPost]
public ActionResult Edit(Voucher voucher)
{
if (ModelState.IsValid)
{
string[] excludeProperties = { "AddedDate", "UserID" };
UpdateModel(ModelState, "", null, excludeProperties);
db.Entry(voucher).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
return View(voucher);
}
On Edit page, once i click on submit, i got the following error: System.Data.SqlServerCe.SqlCeException: An overflow occurred while converting to datetime.
Seems like the AddedDate didn't get excluded from the view model and triggered the error.
Would you please let me know how to fix it? Thanks!
public ActionResult Edit([Bind(Exclude = "AddedDate")]Voucher voucher)
no luck either
You are still passing in Voucher which could contain that field in it. I'm not sure what you are trying to accomplish with the UpdateModel here if you are already passing in a Voucher object?
Pass in Voucher, set it to modified and save it. If you want to use whats in the database then you'll have to
Load the object from the database
UpdateModel and exclude the properties
Save your entity.
You could simply use a View Model and post that.
public class Voucher
{
public int ID { get; set; }
public string Title { get; set; }
public string SiteName { get; set; }
public string DealURL { get; set; }
public DateTime? ExpirationDate { get; set; }
public string VoucherFileURL { get; set; }
public Guid UserID { get; set; }
}
and then load up your object from the db":
var voucher = db.Vouchers.Where(o=>o.ID==voucherViewModel.Id);
//manually copy the fields here then save it
//copy
db.SaveChanges();