// -DtoQuery
public async Task <StudentDto> CreateStudentAsync(StudentDto studentDto, string username)
{
OnCreate(studentDto, username);
var entity = StudentDto.AsStudentFunc(studentDto);
ToEntity(ref entity, studentDto);
//entity.InsertUser = entity.LastActivityUser = username;
//entity.InsertDateTime = entity.LastActivityDateTime = DateTime.UtcNow;
entity.AddTracker(username);
_context.Students.Add(entity);
OnBeforeCreate(entity, username);
try
{
await _context.SaveChangesAsync();
}
catch (Exception ex)
{
// _context.Entry(entity).State = EntityState.Detached;
throw new Exception("Add error", ex);
}
finally
{
// _context.Entry(entity).State = EntityState.Detached;
}
OnAfterCreate(entity, username);
// studentDto = StudentDto.AsStudentDtoFunc(entity);
studentDto = await GetStudentDtoAsync(entity.Id, StudentDto.IncludeNavigations());
return(studentDto);
}
public async Task <ActionResult <StudentDto> > GetStudent(int id)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var student = await studentService.GetStudentDtoAsync(id, StudentDto.IncludeNavigations());
if (student == null)
{
return(NotFound());
}
return(student);
}
public async Task <bool> UpdateStudentAsync(StudentDto studentDto, string username /*, String[] includeNavigations, params Expression<Func<Student, bool>>[] filters*/)
{
OnUpdate(studentDto, username);
// Get Student
var entity = EntityQuery(_context, StudentDto.IncludeNavigations())
.FirstOrDefault(x => x.Id == studentDto.Id);
if (entity != null)
{
entity = StudentDto.ToStudentFunc(entity, studentDto);
ToEntity(ref entity, studentDto);
//entity.UpdateUser = entity.LastActivityUser = username;
//entity.UpdateDateTime = entity.LastActivityDateTime = DateTime.UtcNow;
entity.EditTracker(username);
OnBeforeUpdate(entity, username);
try
{
await _context.SaveChangesAsync();
}
catch (Exception ex)
{
// _context.Entry(entity).State = EntityState.Detached;
throw new Exception("Update error", ex);
}
finally
{
// _context.Entry(entity).State = EntityState.Detached;
}
OnAfterUpdate(entity, username);
}
else
{
return(false);
}
return(true);
}
public async Task <ActionResult <IEnumerable <StudentDto> > > GetStudents(string searchText = null
, string matricNo = null
, string lastname = null
, string firstname = null
, string middlename = null
/*, int pageNumber=1, int pageSize=7*/)
{
// var students = _context.Students.Select(StudentDto.AsStudentDto);
List <Expression <Func <StudentDto, bool> > > filters = null;
if (String.IsNullOrEmpty(searchText) &&
(String.IsNullOrEmpty(matricNo)) &&
(String.IsNullOrEmpty(lastname)) &&
(String.IsNullOrEmpty(firstname)) &&
(String.IsNullOrEmpty(middlename))
)
{
// return null;
}
else
{
filters = new List <Expression <Func <StudentDto, bool> > >();
if (!String.IsNullOrEmpty(searchText))
{
if (searchText.CompareTo("*") != 0 && searchText.CompareTo("%") != 0)
{
filters.Add(x => x.Id.ToString().Contains(searchText));
}
}
if (!String.IsNullOrEmpty(matricNo))
{
filters.Add(x => x.MatricNo == matricNo);
}
if (!String.IsNullOrEmpty(lastname))
{
filters.Add(x => x.Lastname == lastname);
}
if (!String.IsNullOrEmpty(firstname))
{
filters.Add(x => x.Firstname == firstname);
}
if (!String.IsNullOrEmpty(middlename))
{
filters.Add(x => x.Middlename == middlename);
}
}
//sort
//return students.OrderBy(o => o.Id).Skip(((pageNumber - 1) * pageSize)).Take(pageSize);
// OnSelectQuery(ref students);
// return await students.ToListAsync();
if (filters == null)
{
return(await studentService.GetStudentDtoesAsync(StudentDto.IncludeNavigations()));
}
else
{
return(await studentService.GetStudentDtoesAsync(StudentDto.IncludeNavigations(), filters.ToArray()));
}
}
