public async Task <OperationResult> RemoveStudentFromGroup(AddRemoveStudentToGroupModel model)
{
OperationResult result = new OperationResult();
try
{
var relation = await context.Relation_StudentGroup.FirstAsync(rsg => rsg.StudentId == model.Student &&
rsg.GroupId == model.Group);
if (relation != null)
{
context.Relation_StudentGroup.Remove(relation);
await context.SaveChangesAsync();
}
result.Result = true;
result.Error = null;
result.Content = "Student został usunięty z grupy studenckiej";
return(result);
}
catch (Exception ex)
{
result.Result = false;
result.Error = ex.ToString();
result.Content = null;
return(result);
}
}
public async Task <OperationResult> AddStudentToGroup(AddRemoveStudentToGroupModel model)
{
OperationResult result = new OperationResult();
try
{
var album = model.ToString();
var student = await context.Users.FirstOrDefaultAsync(u => u.AlbumNumber == album);
if (student != null)
{
RelStudentGroup rel = new RelStudentGroup();
rel.GroupId = model.Group;
rel.StudentId = student.Id;
await context.Relation_StudentGroup.AddAsync(rel);
await context.SaveChangesAsync();
result.Result = true;
result.Content = "Student został dodany do grupy";
result.Error = null;
return(result);
}
else
{
result.Result = false;
result.Error = "Nieprawisłówy numer albumu studenta";
result.Content = null;
return(result);
}
}
catch (Exception ex)
{
result.Result = false;
result.Error = ex.ToString();
result.Content = null;
return(result);
}
}
