public async Task <bool> Handle(CreateCourseCommand request, CancellationToken cancellationToken)
{
var entity = mapper.Map <Course>(request);
var course = await this.context.Course.SingleOrDefaultAsync(c => c.Code == request.Code);
if (course != null)
{
throw new ArgumentException($"The course already exisit with code: {request.Code} , code must be unique");
}
context.Course.Add(entity);
var result = await context.SaveChangesAsync(cancellationToken);
return(result > 0);
}
public async Task <bool> Handle(CreateStudentCommand request, CancellationToken cancellationToken)
{
var entity = await this.context.Student.SingleOrDefaultAsync(c => c.Id == request.Id);
if (entity != null)
{
throw new ArgumentException($"The student already exisit with id: {request.Id}, id must be unique");
}
var student = mapper.Map <Student>(request);
context.Student.Add(student);
var result = await context.SaveChangesAsync(cancellationToken);
return(result > 0);
}