How to use dependency injection in AutoMapper? #2354

nhontran created 3 years ago

If you're creating a bug/problem report, please include followings:

ABP Framework version: v3.3.2
UI type: Angular
DB provider: EF Core
Tiered (MVC) or Identity Server Separated (Angular): yes
Exception message and stack trace:
Steps to reproduce the issue:"

Hi, I am trying to figure out how to inject a service in AutoMapper profile, I have tried the IMappingAction method from the link below: https://docs.automapper.org/en/stable/Before-and-after-map-actions.html

but got this exception:

[21:31:09 ERR] Error mapping types.
Mapping types:
Object -> List`1
System.Object -> System.Collections.Generic.List`1[[TestA, TestProject.Application.Contracts, Version=0.1.0.0, Culture=neutral, PublicKeyToken=null]]
AutoMapper.AutoMapperMappingException: Error mapping types.
Mapping types:
Object -> List`1
System.Object -> System.Collections.Generic.List`1[[TestA, TestProject.Application.Contracts, Version=0.1.0.0, Culture=neutral, PublicKeyToken=null]]
 ---> System.MissingMethodException: No parameterless constructor defined for type 'TestProject.TestMappingAction'.
   at System.RuntimeType.CreateInstanceDefaultCtorSlow(Boolean publicOnly, Boolean wrapExceptions, Boolean fillCache)
   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, Boolean wrapExceptions)
   at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean wrapExceptions)
   at System.Activator.CreateInstance(Type type)
   at AutoMapper.Configuration.MappingExpressionBase`3.&lt;AfterMap&gt;g__AfterFunction|11_0[TMappingAction](TSource src, TDestination dest, ResolutionContext ctxt)
   at lambda_method(Closure , Object , List`1 , ResolutionContext )
   --- End of inner exception stack trace ---
   at lambda_method(Closure , Object , List`1 , ResolutionContext )
   at Volo.Abp.AutoMapper.AutoMapperAutoObjectMappingProvider.Map[TSource,TDestination](Object source)
   at Volo.Abp.ObjectMapping.DefaultObjectMapper.AutoMap[TSource,TDestination](Object source)
   at Volo.Abp.ObjectMapping.DefaultObjectMapper.Map[TSource,TDestination](TSource source)

What did I miss in my configuration? Any help would be greatly appreciated.

maliming created 3 years ago

Support Team Fullstack Developer

It requires the abp version >= 4.2

https://github.com/abpframework/abp/pull/6868

nhontran created 3 years ago

Hi @maliming, thank you for your prompt reply.

We dont have plan to upgrade the version yet, is there any workaround or any other solution to inject a service in AutoMapper?

maliming created 3 years ago

Support Team Fullstack Developer

hi nhontran

You can try to copy the code from the PR.

nhontran created 3 years ago

Hi @maliming, the PR updated the AbpAutoMapperModule.cs, may I know how can I override this module file?

so far, I know how to override the application service/controller only: https://docs.abp.io/en/abp/4.4/Customizing-Application-Modules-Overriding-Services

Thank you.