//public InstructorType()
//{
// Field<StringGraphType>("name", resolve: x => "CourseType");
//}
public InstructorType(IDataLoaderContextAccessor accessor, ICourseStore courses)
{
Field <IdGraphType>("instructorId", resolve: x => x.Source.InstructorID);
Field(x => x.FullName);
Field(x => x.HireDate);
Field <ListGraphType <CourseType>, IEnumerable <Course> >()
.Name("courses")
.ResolveAsync(context =>
{
var loader = accessor.Context.GetOrAddCollectionBatchLoader <int, Course>(
"getCourseByInstructorId",
courses.GetCoursesByInstructorIdAsync);
return(loader.LoadAsync(context.Source.InstructorID));
});
}
public GraphQlQuery(IDataLoaderContextAccessor accessor, ICourseStore courses, IInstructorStore instructors)
{
FieldAsync <ListGraphType <CourseType> >("courses",
resolve: async context =>
{
var loader = accessor.Context.GetOrAddLoader("GetAllCourses", () => courses.GetAllCoursesAsync());
return(await loader.LoadAsync());
});
FieldAsync <ListGraphType <InstructorType> >("instructors",
resolve: async context =>
{
var loader = accessor.Context.GetOrAddLoader("GetAllInstructors", () => instructors.GetAllInstructorsAsync());
return(await loader.LoadAsync());
});
}
public CourseManager(ICourseStore courseStore)
{
_courseStore = courseStore;
}
