public ActionResult Create(StudentEditViewmodel student)
{
try
{
using (SqlConnection conn = Connection)
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"INSERT INTO Student (FirstName, LastName, SlackHandle, CohortId)
OUTPUT INSERTED.Id
VALUES (@firstName, @lastName, @slackHandle, @cohortId)";
cmd.Parameters.Add(new SqlParameter("@firstName", student.FirstName));
cmd.Parameters.Add(new SqlParameter("@lastName", student.LastName));
cmd.Parameters.Add(new SqlParameter("@slackHandle", student.SlackHandle));
cmd.Parameters.Add(new SqlParameter("@cohortId", student.CohortId));
var id = (int)cmd.ExecuteScalar();
student.StudentId = id;
return(RedirectToAction(nameof(Index)));
}
}
}
catch (Exception ex)
{
return(View());
}
}
// GET: Students/Create
public ActionResult Create()
{
var cohortOptions = GetCohortOptions();
var viewModel = new StudentEditViewmodel()
{
CohortOptions = cohortOptions
};
return(View(viewModel));
}
// GET: Students/Edit/5
public ActionResult Edit(int id)
{
var student = GetStudentById(id);
var cohortOptions = GetCohortOptions();
var viewModel = new StudentEditViewmodel()
{
StudentId = student.Id,
FirstName = student.FirstName,
LastName = student.LastName,
CohortId = student.CohortId,
SlackHandle = student.SlackHandle,
CohortOptions = cohortOptions
};
return(View(viewModel));
}
public ActionResult Edit(int id, [FromForm] StudentEditViewmodel student)
{
try
{
using (SqlConnection conn = Connection)
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"UPDATE Student
SET FirstName = @firstName,
LastName = @lastName,
SlackHandle = @slackHandle,
CohortId = @cohortId
WHERE Id = @id";
cmd.Parameters.Add(new SqlParameter("@firstName", student.FirstName));
cmd.Parameters.Add(new SqlParameter("@lastName", student.LastName));
cmd.Parameters.Add(new SqlParameter("@slackHandle", student.SlackHandle));
cmd.Parameters.Add(new SqlParameter("@cohortId", student.CohortId));
cmd.Parameters.Add(new SqlParameter("@id", id));
var rowsAffected = cmd.ExecuteNonQuery();
if (rowsAffected < 1)
{
return(NotFound());
}
}
}
return(RedirectToAction(nameof(Index)));
}
catch
{
return(View());
}
}
