@ -143,7 +143,7 @@ public partial class IdentityUserToIdentityUserExportDtoMapper : MapperBase<Iden
To use Mapperly, you'll need to create a dedicated mapping class for each source and destination types.
* Use the `[Mapper]` attribute to designate the class as a Mapperly mapper.
* Use the `[Mapper]` attribute to designate the class as a Mapperly mapper. The `RequiredMappingStrategy` is set to `Target` by default.
* Replace AutoMapper's `Ignore()` method with the `[MapperIgnoreTarget]` attribute.
* Replace the `MapExtraProperties()` method with the `[MapExtraProperties]` attribute.
* Use the `TwoWayMapperBase` class as an alternative to AutoMapper’s `ReverseMap()` functionality.
@ -151,11 +151,12 @@ To use Mapperly, you'll need to create a dedicated mapping class for each source
### Dependency Injection in Mapper Class
All Mapperly mapping classes automatically registered in the the [dependency injection (DI)](../../framework/fundamentals/dependency-injection.md) container. To use a service within a Mapper class, simply add it to the constructor, Mapperly will inject it automatically.
All Mapperly mapping classes automatically registered in the [dependency injection (DI)](../../framework/fundamentals/dependency-injection.md) container. To use a service within a Mapper class, simply add it to the constructor; Mapperly will inject it automatically.
public partial class IdentityUserToIdentityUserDtoMapper : MapperBase<IdentityUser,IdentityUserDto>
{
public IdentityUserToIdentityUserDtoMapper(MyService myService)
@ -173,6 +174,170 @@ public partial class IdentityUserToIdentityUserDtoMapper : MapperBase<IdentityUs
}
```
## AI Prompt for Migrating AutoMapper to Mapperly
If you have AI tools like Cursor, you can use the following prompt to migrate your AutoMapper mappings to Mapperly automatically:
> AI may generate some code that is not correct. Please check the code carefully.
```
Please help me migrate AutoMapper Profile classes to Mapperly. I have AutoMapper Profile files in my current workspace/context that need to be converted.
**Conversion Requirements:**
1. **Convert AutoMapper Profile to Mapperly Mappers**: Transform each `CreateMap` into a separate Mapperly mapper class
2. **Rename the file**: Change from `XXXAutoMapperProfile.cs` to `XXXMappers.cs`
3. **Use proper Mapperly attributes**:
- `[Mapper(RequiredMappingStrategy = RequiredMappingStrategy.Target)]` for each mapper class
- `[MapExtraProperties]` for classes that need extra properties mapping
- `[MapperIgnoreTarget]` for ignored properties
- `[MapProperty]` for custom property mappings
4. **Inherit from appropriate base classes**:
- `MapperBase<TSource, TDestination>` for one-way mapping
- `TwoWayMapperBase<TSource, TDestination>` for reverse mapping
5. **Handle complex mappings**: Use `AfterMap` method for complex transformations
**Note:** The code below contains two parts - both are reference examples for you to understand the conversion pattern:
1. **AutoMapper Profile example** - shows the original AutoMapper code structure
Please convert the actual AutoMapper Profile files that exist in your current context/workspace, following the same conversion pattern as shown in these examples.