public override bool Equals(System.Object otherStudent)
{
if (!(otherStudent is Student))
{
return(false);
}
else
{
Student newStudent = (Student)otherStudent;
bool idEquality = (this.GetId() == newStudent.GetId());
bool firstNameEq = (this.GetFirstName() == newStudent.GetFirstName());
bool lastNameEq = (this.GetLastName() == newStudent.GetLastName());
bool dateOfEnrollmentEq = (this.GetDateOfEnrollment() == newStudent.GetDateOfEnrollment());
return(idEquality && firstNameEq && lastNameEq && dateOfEnrollmentEq);
}
}
public override bool Equals(System.Object otherStudent)
{
if (!(otherStudent is Student))
{
return(false);
}
else
{
Student newStudent = (Student)otherStudent;
bool idEquality = this.GetId() == newStudent.GetId();
bool descriptionEquality = this.GetName() == newStudent.GetName();
bool enrollDateEquality = this.GetEnrollDate() == newStudent.GetEnrollDate();
// We no longer compare Students' categoryIds in a categoryEquality bool here.
return(idEquality && descriptionEquality && enrollDateEquality);
}
}
public override bool Equals(System.Object otherStudent)
{
if (!(otherStudent is Student))
{
return(false);
}
else
{
Student newStudent = (Student)otherStudent;
bool firstNameEquality = (this.GetFirstName() == newStudent.GetFirstName());
bool lastNameEquality = (this.GetLastName() == newStudent.GetLastName());
bool rawDateEquality = (this.GetDate() == newStudent.GetDate());
bool idEquality = (this.GetId() == newStudent.GetId());
return(firstNameEquality && lastNameEquality && rawDateEquality && idEquality);
}
}
public void AddStudent(Student newStudent)
{
MySqlConnection conn = DB.Connection();
conn.Open();
var cmd = conn.CreateCommand() as MySqlCommand;
cmd.CommandText = @"INSERT INTO courses_students (course_id, student_id) VALUES (@CourseId, @StudentId);";
cmd.Parameters.Add(new MySqlParameter("@CourseId", _id));
cmd.Parameters.Add(new MySqlParameter("@StudentId", newStudent.GetId()));
cmd.ExecuteNonQuery();
conn.Close();
if (conn != null)
{
conn.Dispose();
}
}
public List <Course> GetCourses(Student student)
{
List <Course> allCourses = new List <Course> {
};
MySqlConnection conn = DB.Connection();
conn.Open();
MySqlCommand cmd = conn.CreateCommand() as MySqlCommand;
cmd.CommandText = @"SELECT courses.* FROM courses JOIN courses_students ON (courses.id = courses_students.course_id) JOIN students ON (courses_students.student_id = students.id) WHERE student_id = @StudentId";
MySqlParameter courseIdParameter = new MySqlParameter();
courseIdParameter.ParameterName = "@StudentId";
courseIdParameter.Value = student.GetId();
cmd.Parameters.Add(courseIdParameter);
MySqlDataReader rdr = cmd.ExecuteReader() as MySqlDataReader;
List <Course> students = new List <Course> {
};
while (rdr.Read())
{
int courseId = rdr.GetInt32(0);
string courseName = rdr.GetString(1);
string courseNumber = rdr.GetString(2);
Course newCourse = new Course(courseName, courseNumber, courseId);
allCourses.Add(newCourse);
}
conn.Close();
if (conn != null)
{
conn.Dispose();
}
return(allCourses);
}
public void AddStudentToCourse(Student theStudent)
{
MySqlConnection conn = DB.Connection();
conn.Open();
MySqlCommand cmd = conn.CreateCommand() as MySqlCommand;
cmd.CommandText = @"INSERT INTO `registration` (`student_id`, `course_id`) VALUES ('" + theStudent.GetId() + "'," + _id + ");";
cmd.ExecuteNonQuery();
conn.Close();
if (conn != null)
{
conn.Dispose();
}
}
