//public SelectList InstructorsSelectList { get; set; }
//the MultiSelectList is so uggly;syncfusion.com is beautyful but expensive
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
//codes below is for keeping the value unchanged when validation failed
//when submit failed because of validation failed & binding mechanism, the instructors[i].name turn to Null, why ?
//now it's InstructorsSelectList turn to Null
VwCourse.InstructorsSelectList = new SelectList((await _StaffManager.GetAllAsync()).ToList(), nameof(Staff.Id), nameof(Staff.Name));
return(Page());
}
//if (await TryUpdateModelAsync<Student>(
//var instructorCourses = new HashSet<int>(instructor.CourseAssignments.Select(c => c.CourseID));
//_context.VwCourse.Add(VwCourse);
//await _context.SaveChangesAsync();
//todo add the relative data such as courseAssigenment, enrollment
// 明确的remove
// VwCourse 不太需要，字段的组合，可以直接在pagemodel中实现，需要采用“bindproperty”
// tenantId 有问题
// 很多命名一致性问题，ID/Id,等等
var course = new Course
{
Name = VwCourse.Name,
IsCyclic = VwCourse.IsCyclic,
StartTime = new DateTime(VwCourse.Date.Year, VwCourse.Date.Month, VwCourse.Date.Day,
VwCourse.StartTime.Hour, VwCourse.StartTime.Minute, 0),
EndTime = new DateTime(VwCourse.Date.Year, VwCourse.Date.Month, VwCourse.Date.Day,
VwCourse.EndTime.Hour, VwCourse.EndTime.Minute, 0)
};
course.CourseAssignments = new List <CourseAssignment>();
//todo should validation the multiple selected first, if no item selected
//Checkboxes in a Razor Pages Form : https://www.learnrazorpages.com/razor-pages/forms/checkboxes
//foreach (var instr in VwCourse.Instructors)
//{
// if (instr.Checked)
// {
// var cor = new CourseAssignment { StaffId = instr.Id, CourseId = VwCourse.id };
// course.CourseAssignments.Add(cor);
// }
//}
foreach (var i in VwCourse.InstructorsIdList)
{
var cor = new CourseAssignment {
StaffId = i, CourseId = VwCourse.id
};
course.CourseAssignments.Add(cor);
}
await _CourseManager.AddAsync(course);
//Instructors.SelectMany<>
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
Course.TanentId = userManager.TenantId;//todo not sure this is ready
//固定课、临时课(一次性课时)，均保存课程设定，对于固定课，还需进行“重复”
DateTime StartDate = DateTime.Now;//todo 按照实际业务完善
Course.StartTime = new DateTime(StartDate.Year, StartDate.Month, StartDate.Day, Course.StartTime.Hour, Course.StartTime.Minute, 0);
Course.EndTime = new DateTime(StartDate.Year, StartDate.Month, StartDate.Day, Course.EndTime.Hour, Course.EndTime.Minute, 0);
//todo core TempData for what????
//_context.Course.Add(Course);
//await _context.SaveChangesAsync();
await _CourseMgr.AddAsync(Course);
return(RedirectToPage("./Index"));
}