public async Task <IActionResult> DeleteConfirmed(int id)
{
ViewBag.UserInformation = SharedFunctionsController.GetUserNameBySignInID(User.Identity.Name);
using (LearningManagementContext context = new LearningManagementContext())
{
var course = await context.Courses.FindAsync(id);
try
{
if (course.StartDate < DateTime.Today)
{
exception.ValidationExceptions.Add(new Exception("Error: Cannot delete a course that is in progress."));
}
else if (course.EndDate > DateTime.Today && course.StartDate < DateTime.Today)
{
exception.ValidationExceptions.Add(new Exception("Error: Cannot delete a course that is in progress."));
}
if (exception.ValidationExceptions.Count > 0)
{
throw exception;
}
context.Courses.Remove(course);
await context.SaveChangesAsync();
return(RedirectToAction(nameof(CourseList)));
}
catch (ValidationException e)
{
ViewBag.Message = "There exist problem(s) with your submission, see below.";
ViewBag.Exception = e;
ViewBag.Error = true;
}
return(View(course));
}
}
public async Task <IActionResult> CourseEdit(int id, [Bind("ID,UserID,CourseName,Subject,CourseDescription,GradeLevel,StartDate,EndDate,CurrentCapacity,MaxCapacity")] Course course)
{
ViewBag.UserInformation = SharedFunctionsController.GetUserNameBySignInID(User.Identity.Name);
course.CourseName = course.CourseName != null?course.CourseName.Trim() : null;
course.Subject = course.Subject != null?course.Subject.Trim() : null;
course.CourseDescription = course.CourseDescription != null?course.CourseDescription.Trim() : null;
using (LearningManagementContext context = new LearningManagementContext())
{
if (id != course.ID)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
if (course.MaxCapacity <= 0)
{
exception.ValidationExceptions.Add(new Exception("Invalid Maximum Capacity: Course must have a minimum of 1 student."));
}
else
{
if (course.CurrentCapacity > course.MaxCapacity)
{
exception.ValidationExceptions.Add(new Exception("Invalid Current Capacity: Current capacity cannot exceed maximum capacity."));
}
else
{
if (course.StartDate > course.EndDate)
{
exception.ValidationExceptions.Add(new Exception("Invalid Start Date: Course start date cannot be after end date."));
}
}
}
if (exception.ValidationExceptions.Count > 0)
{
throw exception;
}
ViewBag.CourseExists = true;
context.Update(course);
await context.SaveChangesAsync();
ViewBag.Message = $"Successfully updated course!";
}
catch (DbUpdateConcurrencyException)
{
if (!(context.Courses.Any(x => x.ID == id)))
{
return(NotFound());
}
else
{
throw exception;
}
}
catch (ValidationException e)
{
ViewBag.Message = "There is an issue(s) with the submission, please see the following details:";
ViewBag.Exception = e;
ViewBag.Error = true;
}
// Create a list based on first name and last name from the User table that has a role equal to 2 (which is "Instructor")
var instructors = new SelectList(context.Users.Where(x => x.Role == 2)
.OrderBy(y => y.LastName)
.ToDictionary(us => us.ID, us => us.FirstName + " " + us.LastName), "Key", "Value", course.UserID);
ViewBag.Instructors = instructors;
ViewBag.CourseName = course.CourseName;
ViewBag.Subject = course.Subject;
ViewBag.StartDate = course.StartDate;
ViewBag.EndDate = course.EndDate;
ViewBag.CourseDescription = course.CourseDescription;
// Create list of GradeLevels
var gradeLevels = new List <string>()
{
"Kindergarten", "Grade 1", "Grade 2", "Grade 3", "Grade 4", "Grade 5", "Grade 6", "Grade 7", "Grade 8", "Grade 9", "Grade 10", "Grade 11", "Grade 12"
};
// Populate dropdown list for grade levels.
var gradeLevelList = new SelectList(gradeLevels.ToDictionary(g => g, g => g), "Key", "Value", course.GradeLevel);
ViewBag.GradeLevels = gradeLevelList;
ViewBag.GradeLevel = course.GradeLevel;
ViewBag.CurrentCapacity = course.CurrentCapacity;
ViewBag.MaxCapacity = course.MaxCapacity;
}
}
return(View());
}
public async Task <IActionResult> CourseCreate(string instructor, string courseName, string subject, string courseDescription, string gradeLevel, DateTime?startDate, DateTime?endDate, int currentCapacity, int maxCapacity, [Bind("ID,UserID,CourseName,Subject,CourseDescription,GradeLevel,StartDate,EndDate,MaxCapacity")] Course course)
{
ViewBag.UserInformation = SharedFunctionsController.GetUserNameBySignInID(User.Identity.Name);
using (LearningManagementContext context = new LearningManagementContext())
{
instructor = instructor != null?instructor.Trim() : null;
courseName = courseName != null?courseName.Trim() : null;
subject = subject != null?subject.Trim() : null;
courseDescription = courseDescription != null?courseDescription.Trim() : null;
if (ModelState.IsValid)
{
try
{
if (course.MaxCapacity <= 0)
{
exception.ValidationExceptions.Add(new Exception("Invalid Maximum Capacity: Course must have a minimum of 1 student"));
}
else
{
if (course.CurrentCapacity > course.MaxCapacity)
{
exception.ValidationExceptions.Add(new Exception("Invalid Current Capacity: Current capacity cannot exceed maximum capacity"));
}
else
{
if (course.StartDate > course.EndDate)
{
exception.ValidationExceptions.Add(new Exception("Invalid Start Date: Course start date cannot be set past the end date"));
}
else
{
if (course.StartDate < DateTime.Today)
{
exception.ValidationExceptions.Add(new Exception("Invalid Start Date: Course start date cannot be set prior to todays date"));
}
else
{
if (course.EndDate < DateTime.Today)
{
exception.ValidationExceptions.Add(new Exception("Invalid End Date: Course end date cannot be set prior to todays date"));
}
else
{
if (context.Courses.Any(x => x.CourseName == course.CourseName))
{
exception.ValidationExceptions.Add(new Exception("Invalid Course Name: That course already exists"));
}
}
}
}
}
}
if (exception.ValidationExceptions.Count > 0)
{
throw exception;
}
context.Add(course);
await context.SaveChangesAsync();
ViewBag.Message = $"Successfully created course!";
}
catch (ValidationException e)
{
ViewBag.Message = "There is an issue(s) with the submission, please see the following details:";
ViewBag.Exception = e;
ViewBag.Error = true;
}
var instructors = new SelectList(context.Users.Where(x => x.Role == 2)
.OrderBy(y => y.LastName)
.ToDictionary(us => us.ID, us => us.FirstName + " " + us.LastName), "Key", "Value", instructor);
ViewBag.Instructors = instructors;
ViewBag.CourseName = courseName;
// Create list of Subjects
var courseSubjects = new List <string>()
{
"English", "Math", "Science", "Social Studies"
};
// Populate dropdown list for subjects.
var courseSubjectsList = new SelectList(courseSubjects.ToDictionary(s => s, s => s), "Key", "Value", courseSubjects);
ViewBag.CourseSubjects = courseSubjectsList;
ViewBag.Subject = subject;
ViewBag.StartDate = startDate;
ViewBag.EndDate = endDate;
ViewBag.CourseDescription = courseDescription;
// Create list of GradeLevels
var gradeLevels = new List <string>()
{
"Kindergarten", "Grade 1", "Grade 2", "Grade 3", "Grade 4", "Grade 5", "Grade 6", "Grade 7", "Grade 8", "Grade 9", "Grade 10", "Grade 11", "Grade 12"
};
// Populate dropdown list for grade levels.
var gradeLevelList = new SelectList(gradeLevels.ToDictionary(g => g, g => g), "Key", "Value", gradeLevel);
ViewBag.GradeLevels = gradeLevelList;
ViewBag.GradeLevel = gradeLevel;
//ViewBag.CurrentCapacity = currentCapacity;
ViewBag.MaxCapacity = maxCapacity;
}
}
return(View(course));
}
