C# (CSharp) Contoso.Application.Courses.Commands CreateCourseAssignment示例

示例#1

 private async Task <Validation <Error, CourseAssignment> > Validate(CreateCourseAssignment create) =>
 (await CourseMustExist(create), await InstructorMustExist(create))

示例#2

 public Task <Validation <Error, int> > Handle(CreateCourseAssignment request, CancellationToken cancellationToken) =>
 Validate(request)
 .Bind(v => v.Map(Persist).Traverse(i => i));