/*******Begin code to modify********/
/// <summary>
/// Create a new user of the LMS with the specified information.
/// Assigns the user a unique uID consisting of a 'u' followed by 7 digits.
/// </summary>
/// <param name="fName">First Name</param>
/// <param name="lName">Last Name</param>
/// <param name="DOB">Date of Birth</param>
/// <param name="SubjectAbbrev">The department the user belongs to (professors and students only)</param>
/// <param name="SubjectAbbrev">The user's role: one of "Administrator", "Professor", "Student"</param>
/// <returns>A unique uID that is not be used by anyone else</returns>
public string CreateNewUser(string fName, string lName, DateTime DOB, string SubjectAbbrev, string role)
{
var chars = "0123456789";
var stringChars = new char[8];
var random = new Random();
stringChars[0] = 'u';
for (int i = 1; i < stringChars.Length; i++)
{
stringChars[i] = chars[random.Next(chars.Length)];
}
var uid = new String(stringChars);
using (Models.LMSModels.Team13LMSContext db = new Models.LMSModels.Team13LMSContext())
{
if (role.Equals("Student"))
{
Models.LMSModels.Students s = new Models.LMSModels.Students();
s.FirstName = fName;
s.LastName = lName;
s.DateOfBirth = DOB;
s.SubjectAbbreviation = SubjectAbbrev;
s.UId = uid;
db.Students.Add(s);
db.SaveChanges();
}
if (role.Equals("Professor"))
{
Models.LMSModels.Professors p = new Models.LMSModels.Professors();
p.FirstName = fName;
p.LastName = lName;
p.DateOfBirth = DOB;
p.SubjectAbbreviation = SubjectAbbrev;
p.UId = uid;
db.Professors.Add(p);
db.SaveChanges();
}
if (role.Equals("Administrator"))
{
Models.LMSModels.Administrators admin = new Models.LMSModels.Administrators();
admin.FirstName = fName;
admin.LastName = lName;
admin.DateOfBirth = DOB;
admin.UId = uid;
db.Administrators.Add(admin);
db.SaveChanges();
}
}
return(uid);
}
/*******Begin code to modify********/
/// <summary>
/// Create a new user of the LMS with the specified information.
/// Assigns the user a unique uID consisting of a 'u' followed by 7 digits.
/// </summary>
/// <param name="fName">First Name</param>
/// <param name="lName">Last Name</param>
/// <param name="DOB">Date of Birth</param>
/// <param name="SubjectAbbrev">The department the user belongs to (professors and students only)</param>
/// <param name="role">The user's role: one of "Administrator", "Professor", "Student"</param>
/// <returns>A unique uID that is not be used by anyone else</returns>
public string CreateNewUser(string fName, string lName, DateTime DOB, string SubjectAbbrev, string role)
{
String uID = GenerateUID();
if (role == "Administrator")
{
Models.LMSModels.Administrators admin = new Models.LMSModels.Administrators();
admin.FirstName = fName;
admin.LastName = lName;
admin.BirthDate = DOB;
admin.UId = uID;
db.Administrators.Add(admin);
}
else if (role == "Professor")
{
Models.LMSModels.Professors professor = new Models.LMSModels.Professors();
professor.FirstName = fName;
professor.LastName = lName;
professor.BirthDate = DOB;
professor.UId = uID;
professor.Department = SubjectAbbrev;
db.Professors.Add(professor);
}
else if (role == "Student")
{
Models.LMSModels.Students student = new Models.LMSModels.Students();
student.FirstName = fName;
student.LastName = lName;
student.BirthDate = DOB;
student.UId = uID;
student.Major = SubjectAbbrev;
db.Students.Add(student);
}
db.SaveChanges();
return(uID);
}
/*******Begin code to modify********/
/// <summary>
/// Create a new user of the LMS with the specified information.
/// Assigns the user a unique uID consisting of a 'u' followed by 7 digits.
/// </summary>
/// <param name="fName">First Name</param>
/// <param name="lName">Last Name</param>
/// <param name="DOB">Date of Birth</param>
/// <param name="SubjectAbbrev">The department the user belongs to (professors and students only)</param>
/// <param name="role">The user's role: one of "Administrator", "Professor", "Student"</param>
/// <returns>A unique uID. This uID must not be used by anyone else</returns>
public string CreateNewUser(string fName, string lName, DateTime DOB, string SubjectAbbrev, string role)
{
// String for new uID to be given new user
string newIDNumber;
using (db)
{
// List for storing all user ID's
List <string> userIDs = new List <string>();
var infoQuery =
(from stu in db.Students
select stu.UId)
.Union
(from prof in db.Professors
select prof.UId)
.Union(from adm in db.Administrators
select adm.UId);
foreach (string uID in infoQuery)
{
userIDs.Add(uID);
}
// Create unique uID that doesn't match any existing uID's
newIDNumber = getNextUserID(userIDs);
// Add the user to the database
if (role.Equals("Student"))
{
// Set up the student
Models.LMSModels.Students student = new Models.LMSModels.Students();
student.FirstName = fName;
student.LastName = lName;
student.DateOfBirth = DOB;
student.Major = SubjectAbbrev;
student.UId = newIDNumber;
student.Password = "";
// Insert the student into the database
db.Students.Add(student);
db.SaveChanges();
}
else if (role.Equals("Professor"))
{
// Set up the professor
Models.LMSModels.Professors professor = new Models.LMSModels.Professors();
professor.FirstName = fName;
professor.LastName = lName;
professor.DateOfBirth = DOB;
professor.WorksIn = SubjectAbbrev;
professor.UId = newIDNumber;
professor.Password = "";
// Insert the professor into the database
db.Professors.Add(professor);
db.SaveChanges();
}
else
{
// Set up the administrator
Models.LMSModels.Administrators admin = new Models.LMSModels.Administrators();
admin.FirstName = fName;
admin.LastName = lName;
admin.DateOfBirth = DOB;
admin.UId = newIDNumber;
admin.Password = "";
// Insert the professor into the database
db.Administrators.Add(admin);
db.SaveChanges();
}
}
// Return the uID
return(newIDNumber);
}
