private bool IsValid(PO_Student_Save PostObject, out string Message)
{
Message = "";
if (string.IsNullOrEmpty(PostObject.Name))
{
Message = "Name is Required!";
return(false);
}
if (0 == PostObject.ClassId)
{
Message = "Class is Required!";
return(false);
}
if (0 == PostObject.Roll)
{
Message = "Roll is Required!";
return(false);
}
if (0 == PostObject.Id && DB.Students.Where(x => x.Name == PostObject.Name).Count() > 0)
{
Message = "Duplicate Name Exists!";
return(false);
}
if (PostObject.Id > 0 && DB.Students.Where(x => x.Name == PostObject.Name && x.StudentId != PostObject.Id).Count() > 0)
{
Message = "Duplicate Name Exists!";
return(false);
}
if (0 == PostObject.Id && DB.Students.Where(x => x.ClassId == PostObject.ClassId && x.Roll == PostObject.Roll).Count() > 0)
{
Message = "Duplicate Roll Exists!";
return(false);
}
if (PostObject.Id > 0 && DB.Students.Where(x => x.ClassId == PostObject.ClassId && x.Roll == PostObject.Roll && x.StudentId != PostObject.Id).Count() > 0)
{
Message = "Duplicate Roll Exists!";
return(false);
}
return(true);
}
public async Task <string> Save()
{
try
{
string PostObjectStr = await GetPostData();
PO_Student_Save PostObject = JsonConvert.DeserializeObject <PO_Student_Save>(PostObjectStr);
DB = new DBSContext();
string Message = "";
if (!IsValid(PostObject, out Message))
{
return(JsonConvert.SerializeObject(new { IsSuccess = false, Message = Message }));
}
Student _Student = 0 == PostObject.Id ? new Student() : DB.Students.Find(PostObject.Id);
_Student.ClassId = PostObject.ClassId;
_Student.Name = PostObject.Name;
_Student.Roll = PostObject.Roll;
_Student.Phone = PostObject.Phone;
_Student.Email = PostObject.Email;
if (0 == PostObject.Id)
{
_Student.DateOfEntry = DateTime.Now;
DB.Students.Add(_Student);
}
DB.SaveChanges();
return(JsonConvert.SerializeObject(new { IsSuccess = true }));
}
catch (Exception ex)
{
return(JsonConvert.SerializeObject(new {
IsSuccess = false,
Message = Common.GetError(ex)
}));
}
}
