public void clear()
{
DBFirstName.Clear();
DBSurname.Clear();
DBEmail.Clear();
DBPhone.Clear();
DBAddress1.Clear();
DBAddress2.Clear();
DBCity.Clear();
DBCounty.Clear();
DBCourse.Clear();
txtStudID.Clear();
}
public static bool IsEmptyDB()
{
int UserSize = DBUser.ReadUsers().Count();
int AssignmentSize = DBAssignment.ReadAssignments().Count();
int StudentSize = DBStudent.ReadStudents().Count();
int CourseSize = DBCourse.ReadCourses().Count();
int TrainerSize = DBTrainer.ReadTrainers().Count();
bool basicEntities = UserSize == 0 &&
AssignmentSize == 0 &&
StudentSize == 0 &&
CourseSize == 0 &&
TrainerSize == 0;
return(basicEntities);
}
public void Read()
{
ICollection <Course> courses = DBCourse.ReadCourses();
if (courses.Count() == 0)
{
ConsoleUI.ShowLine("No courses yet");
}
else
{
foreach (Course c in courses)
{
ConsoleUI.ShowLine(c);
}
}
ConsoleUI.ReadKey();
ConsoleUI.Clear();
}
public static void AutoGenerate()
{
ConsoleUI.ShowLine("Creating headmaster with username: '******' and password: '******'");
string encryptedPassword = CryptoManager.EncryptPassword("12345", out string encryptedSalt);
try
{
int headMasterSaved = DBUser.CreateUser("hm", encryptedPassword, encryptedSalt, "headmaster", out int id);
if (headMasterSaved == 0)
{
throw new Exception("head master NOT saved");
}
}
catch (Exception e)
{
ConsoleUI.ShowLine(e.Message);
ConsoleUI.ReadKey();
return;
}
ConsoleUI.ShowLine("head master created");
ConsoleUI.ShowLine("creating students");
List <int> studentIDs = new List <int>();
List <int> trainerIDs = new List <int>();
List <int> assignmentIDs = new List <int>();
List <int> courseIDs = new List <int>();
int studentID;
string studentUsername;
string plainTextPassword;
string studentFName;
string studentLName;
// 3 students
for (int i = 0; i < 3; i++)
{
studentUsername = "******" + i;
plainTextPassword = "******" + i;
encryptedPassword = CryptoManager.EncryptPassword(plainTextPassword, out encryptedSalt);
DBUser.CreateUser(studentUsername, encryptedPassword, encryptedSalt, "student", out studentID);
ConsoleUI.ShowLine($"student user created u:{studentUsername} p:{plainTextPassword}");
studentFName = "studentFirstName" + i;
studentLName = "studentLastName" + i;
DBStudent.CreateStudent(studentFName, studentLName, new DateTime(2000, 1, 1), 20000, studentID);
ConsoleUI.ShowLine($"student {studentFName} {studentLName} created");
studentIDs.Add(studentID);
ConsoleUI.ChangeLine();
}
int trainerID;
string trainerUsername;
string trainerFName;
string trainerLName;
string trainerSubject;
// 2 trainers
for (int i = 0; i < 2; i++)
{
trainerUsername = "******" + i;
plainTextPassword = "******" + i;
encryptedPassword = CryptoManager.EncryptPassword(plainTextPassword, out encryptedSalt);
DBUser.CreateUser(trainerUsername, encryptedPassword, encryptedSalt, "trainer", out trainerID);
ConsoleUI.ShowLine($"trainer user created u:{trainerUsername} p:{plainTextPassword}");
trainerFName = "trainerFirstName" + i;
trainerLName = "trainerLastName" + i;
trainerSubject = "trainerSubject" + i;
DBTrainer.CreateTrainer(trainerFName, trainerLName, trainerSubject, trainerID);
ConsoleUI.ShowLine($"trainer {trainerFName} {trainerLName} created");
trainerIDs.Add(trainerID);
ConsoleUI.ChangeLine();
}
string title;
string description;
// 2 assignments
for (int i = 0; i < 2; i++)
{
title = "assignmentTitle" + i;
description = "assignmentDescription" + i;
DBAssignment.CreateAssignment(title, description, new DateTime(2019, 1, 1), 100, 100, out int assignmentID);
assignmentIDs.Add(assignmentID);
ConsoleUI.ShowLine($"assignment {title} with id: {assignmentID} created");
ConsoleUI.ChangeLine();
}
// 3 courses
for (int i = 0; i < 3; i++)
{
title = "courseTitle" + i;
DBCourse.CreateCourse(title, "C#", "Full time", new DateTime(2019, 1, 1), new DateTime(2019, 2, 2), out int courseID);
courseIDs.Add(courseID);
ConsoleUI.ShowLine($"course {title} with id: {courseID} created");
ConsoleUI.ChangeLine();
}
AssignmentPerStudentManager a = new AssignmentPerStudentManager();
//assignments-courses
//all assignments to course 1
#region
DBAssignmentsPerCourse.CreateAssignmentPerCourse(assignmentIDs[0], courseIDs[0]);
a.CreateFromNewAssignment(assignmentIDs[0], courseIDs[0]);
DBAssignmentsPerCourse.CreateAssignmentPerCourse(assignmentIDs[1], courseIDs[0]);
a.CreateFromNewAssignment(assignmentIDs[1], courseIDs[0]);
#endregion
//first 3 assignments to course 1
#region
DBAssignmentsPerCourse.CreateAssignmentPerCourse(assignmentIDs[0], courseIDs[1]);
a.CreateFromNewAssignment(assignmentIDs[0], courseIDs[1]);
DBAssignmentsPerCourse.CreateAssignmentPerCourse(assignmentIDs[1], courseIDs[1]);
a.CreateFromNewAssignment(assignmentIDs[1], courseIDs[1]);
#endregion
//student courses
//all students to course 1
#region
DBStudentsPerCourse.CreateStudentPerCourse(studentIDs[0], courseIDs[0]);
a.CreateFromNewStudent(studentIDs[0], courseIDs[0]);
DBStudentsPerCourse.CreateStudentPerCourse(studentIDs[1], courseIDs[0]);
a.CreateFromNewStudent(studentIDs[1], courseIDs[0]);
DBStudentsPerCourse.CreateStudentPerCourse(studentIDs[2], courseIDs[0]);
a.CreateFromNewStudent(studentIDs[2], courseIDs[0]);
#endregion
// 2 students to course 2
#region
DBStudentsPerCourse.CreateStudentPerCourse(studentIDs[0], courseIDs[1]);
a.CreateFromNewStudent(studentIDs[0], courseIDs[1]);
DBStudentsPerCourse.CreateStudentPerCourse(studentIDs[1], courseIDs[1]);
a.CreateFromNewStudent(studentIDs[1], courseIDs[1]);
#endregion
// 2 courses to student 1
#region
DBStudentsPerCourse.CreateStudentPerCourse(studentIDs[0], courseIDs[2]);
a.CreateFromNewStudent(studentIDs[0], courseIDs[2]);
#endregion
//trainer courses
//all trainers to course 1
#region
DBTrainersPerCourse.CreateTrainerPerCourse(trainerIDs[0], courseIDs[0]);
DBTrainersPerCourse.CreateTrainerPerCourse(trainerIDs[1], courseIDs[0]);
#endregion
// 2 trainers to course 2
#region
DBTrainersPerCourse.CreateTrainerPerCourse(trainerIDs[0], courseIDs[1]);
DBTrainersPerCourse.CreateTrainerPerCourse(trainerIDs[1], courseIDs[1]);
#endregion
//2 courses to trainer 1
#region
DBTrainersPerCourse.CreateTrainerPerCourse(trainerIDs[0], courseIDs[2]);
#endregion
ConsoleUI.ShowLine("done");
}
public void Delete()
{
bool exit;
ICollection <Course> courses = DBCourse.ReadCourses();
if (courses.Count() == 0)
{
ConsoleUI.ShowLine("no courses yet");
ConsoleUI.ReadKey();
ConsoleUI.Clear();
return;
}
else
{
ConsoleUI.ShowLine("select course to delete, type 0 to exit");
foreach (Course c in courses)
{
ConsoleUI.ShowLine(c);
}
}
exit = ConsoleUI.GetInt(out int CourseID, "give course id: ");
if (exit)
{
return;
}
Course course;
try
{
course = courses.Where(c => c.Id == CourseID).First();
}
catch (Exception)
{
ConsoleUI.ShowLine($"NO COURSE FOUND WITH ID: {CourseID}");
ConsoleUI.ReadKey();
return;
}
bool confirmed = ConsoleUI.GetConfirmation($"are you sure you want to delete course {course.Title}? [y/n]: ");
int result = 0;
if (confirmed)
{
result = DBCourse.DeleteCourse(CourseID);
if (result == 0)
{
ConsoleUI.ShowLine("delete failed");
}
else
{
ConsoleUI.ShowLine("course deleted successfully");
}
ConsoleUI.ReadKey();
}
}
public void Create()
{
bool exit;
while (true)
{
ConsoleUI.Clear();
string baseMessage = "type course's information or type 0 to exit \n";
exit = ConsoleUI.GetString(out string title, $"{baseMessage}Course's title: ");
if (exit)
{
return;
}
exit = ConsoleUI.GetString(out string stream, $"{baseMessage}Course's stream: ");
if (exit)
{
return;
}
exit = ConsoleUI.GetInt(out int typeInput, $"{baseMessage}Course's type (1 = Full time, 2 = Part time): ");
if (exit)
{
return;
}
if (typeInput != 1 && typeInput != 2)
{
ConsoleUI.ShowLine("course type not accepted");
ConsoleUI.ReadKey();
continue;
}
string type = typeInput == 1 ? "Full time" : "Part time";
exit = ConsoleUI.GetDate(out DateTime? startDate, "Course's start date:\n");
if (exit)
{
return;
}
exit = ConsoleUI.GetDate(out DateTime? endDate, "Course's end date:\n");
if (exit)
{
return;
}
if (endDate <= startDate)
{
ConsoleUI.ShowLine("invalid dates: end date is before start date, IMPOSSIBRU!!");
ConsoleUI.ReadKey();
continue;
}
int result = DBCourse.CreateCourse(title, stream, type, (DateTime)startDate, (DateTime)endDate, out int id);
if (result == 0)
{
ConsoleUI.ShowLine("course could NOT be saved");
}
else
{
ConsoleUI.ShowLine($"course created with id: {id}");
}
ConsoleUI.ReadKey();
}
}
public void Update()
{
bool exit;
ICollection <Course> courses = DBCourse.ReadCourses();
if (courses.Count() == 0)
{
ConsoleUI.ShowLine("no courses yet");
ConsoleUI.ReadKey();
ConsoleUI.Clear();
return;
}
else
{
ConsoleUI.ShowLine("select course to update, type 0 to exit");
foreach (Course c in courses)
{
ConsoleUI.ShowLine(c);
}
}
exit = ConsoleUI.GetInt(out int CourseID, "give course id: ");
if (exit)
{
return;
}
ConsoleUI.Clear();
Course course;
try
{
course = courses.Where(c => c.Id == CourseID).First();
}
catch (Exception)
{
ConsoleUI.ShowLine($"NO COURSE FOUND WITH ID: {CourseID}");
ConsoleUI.ReadKey();
return;
}
ConsoleUI.ShowLine($"you selected to edit course: {course.Title}");
ConsoleUI.ShowLine($"select attribute to edit, type 0 anytime to exit");
ConsoleUI.ShowLine("1. Title");
ConsoleUI.ShowLine("2. Stream");
ConsoleUI.ShowLine("3. Type");
ConsoleUI.ShowLine("4. Date of start");
ConsoleUI.ShowLine("5. Date of end");
exit = ConsoleUI.GetInt(out int choice);
if (exit)
{
return;
}
ConsoleUI.Clear();
CourseAttributes attribute = (CourseAttributes)choice;
string newInput = "";
DateTime? newStartDate;
DateTime? newEndDate;
int result = 0;
switch (attribute)
{
case CourseAttributes.Title:
exit = ConsoleUI.GetString(out newInput, "enter new title: ");
if (exit)
{
return;
}
result = DBCourse.UpdateCourse(CourseID, attribute, newInput);
break;
case CourseAttributes.Stream:
exit = ConsoleUI.GetString(out newInput, "enter new stream: ");
if (exit)
{
return;
}
result = DBCourse.UpdateCourse(CourseID, attribute, newInput);
break;
case CourseAttributes.Type:
exit = ConsoleUI.GetString(out newInput, "enter new type: ");
if (exit)
{
return;
}
result = DBCourse.UpdateCourse(CourseID, attribute, newInput);
break;
case CourseAttributes.StartDate:
exit = ConsoleUI.GetDate(out newStartDate, "enter new start date: ");
if (exit)
{
return;
}
result = DBCourse.UpdateCourse(CourseID, attribute, newStartDate);
break;
case CourseAttributes.EndDate:
exit = ConsoleUI.GetDate(out newEndDate, "enter new end date: ");
if (exit)
{
return;
}
result = DBCourse.UpdateCourse(CourseID, attribute, newEndDate);
break;
default:
break;
}
if (result == 0)
{
ConsoleUI.ShowLine("course update failed");
}
else
{
ConsoleUI.ShowLine("course updated successfully");
}
ConsoleUI.ReadKey();
}
