protected (ClassViewModel ServedType, ClassViewModel DeclaredFor) GetStrategyTypes(
ModelBindingContext bindingContext,
Type strategyInterface
)
{
// Grab the type information about what we need to inject.
var parameterTypeViewModel = new ReflectionTypeViewModel(bindingContext.ModelType);
// Figure out what type is satisfying the generic parameter of our strategy interface.
// This is the type that our datasource/Behaviors needs to serve.
var servedType = parameterTypeViewModel.GenericArgumentsFor(strategyInterface).Single().ClassViewModel;
// Examine the parameter for any attributes.
var parameterDescriptor = bindingContext.ActionContext.ActionDescriptor.Parameters
.Single(p => p.Name == bindingContext.FieldName)
as Microsoft.AspNetCore.Mvc.Controllers.ControllerParameterDescriptor;
var parameterInfo = parameterDescriptor.ParameterInfo;
var declaredForAttribute = parameterInfo.GetAttribute <DeclaredForAttribute>();
// See if there is an override for the type that we want to find declared data sources for.
ClassViewModel declaredFor = servedType;
if (declaredForAttribute != null)
{
declaredFor = ReflectionRepository.Global.GetClassViewModel(declaredForAttribute.DeclaredFor);
}
return(servedType, declaredFor);
}
