public async Task <IActionResult> Edit([FromBody] UpdateAndCreateGroupVM model)
{
if (await _groupService.EditGroup(model))
{
return(Ok());
}
return(Ok());
}
public async Task <IActionResult> Create([FromBody] UpdateAndCreateGroupVM model)
{
if (await _groupService.CreateGroup(model))
{
return(Ok());
}
var invalid = new Dictionary <string, string>
{
{ "group", "Дана група вже створена" }
};
return(Ok(invalid));
}
public async Task <bool> EditGroup(UpdateAndCreateGroupVM model)
{
var group = _context.Groups.Where((item) => item.Id == model.Id).FirstOrDefault();
if (group != null)
{
if (group.TeacherId != null)
{
var teacherOld = _context.Teachers.FirstOrDefault((item) => item.Id == group.TeacherId);
if (teacherOld != null)
{
teacherOld.GroupId = null;
}
}
var teacher = _context.Teachers.FirstOrDefault((item) => item.Id == model.TeacherId);
if (teacher != null)
{
teacher.GroupId = group.Id;
}
var oldStudents = _context.Students.Where((item) => item.GroupId == group.Id).ToList();
foreach (var student in oldStudents)
{
student.GroupId = null;
}
foreach (var id in model.StudentsId)
{
var student = _context.Students.SingleOrDefault((item) => item.Id == id);
if (student != null)
{
student.GroupId = group.Id;
}
}
group.Name = model.Name;
group.TeacherId = model.TeacherId;
await _context.SaveChangesAsync();
return(true);
}
return(false);
}
public async Task <bool> CreateGroup(UpdateAndCreateGroupVM model)
{
var group = _context.Groups.Where((item) => item.Name == model.Name).FirstOrDefault();
if (group is null)
{
group = new Group
{
Name = model.Name,
TeacherId = model.TeacherId,
SchoolId = model.SchoolId
};
_context.Groups.Add(group);
await _context.SaveChangesAsync();
var teacher = _context.Teachers.FirstOrDefault((item) => item.Id == model.TeacherId);
if (teacher != null)
{
teacher.GroupId = group.Id;
await _context.SaveChangesAsync();
}
foreach (var id in model.StudentsId)
{
var student = _context.Students.SingleOrDefault((item) => item.Id == id);
if (student != null)
{
student.GroupId = group.Id;
}
}
await _context.SaveChangesAsync();
return(true);
}
return(false);
}
