public string GetInfo(string univerName)
{
var univers = GenerateUnivers();
var teacherLogic = new TeacherLogic();
var teachers = teacherLogic.GenerateTeachers();
var studentLogic = new StudentLogic();
var students = studentLogic.GenerateStudents();
var univer = univers
.SingleOrDefault(u => u.Name == univerName);
if (univer == null)
{
throw new Exception(" University with univerName = " +
$"{univerName} was not found. ");
}
int studentsCount = students
.Count(s => s.UniverId == univer.Id);
int teachersCount = teachers
.Count(t => t.UniverId == univer.Id);
return($" The {univer.FullName} ({univer.Name}) " +
$"has {studentsCount} students and " +
$"{teachersCount} teachers. ");
}
public IEnumerable <string> GetAllInfo()
{
var univers = GenerateUnivers();
var teacherLogic = new TeacherLogic();
var teachers = teacherLogic.GenerateTeachers();
var studentLogic = new StudentLogic();
var students = studentLogic.GenerateStudents();
var univerTeachersStudents =
from univer in univers
join teacher in teachers on univer.Id equals teacher.UniverId
join student in students on univer.Id equals student.UniverId
select new UniverStudentTeacher(univer, teacher, student);
var groups = univerTeachersStudents
.GroupBy(x => x.Univer, elem => new { elem.Teacher, elem.Student })
.ToList();
List <string> univerTeachStudList = new List <string>();
foreach (var gr in groups)
{
var teachersGr = gr
.Where(t => t != null && t.Teacher != null)
.Select(t => t.Teacher)
.Distinct()
.ToList();
var teacherStr = GetTeacherDescription(teachersGr);
var studentsGr = gr
.Where(s => s?.Student != null)
.Select(s => s.Student)
.Distinct()
.ToList();
var sNameList = GetStudentDescription(studentsGr);
univerTeachStudList
.Add($" The {gr.Key.FullName} has " +
$" {teacherStr} and " +
$" {sNameList}. ");
}
return(univerTeachStudList);
}
public IEnumerable <string> GetAllUnivers()
{
var univers = GenerateUnivers();
var teacherLogic = new TeacherLogic();
var teachers = teacherLogic.GenerateTeachers();
var studentLogic = new StudentLogic();
var students = studentLogic.GenerateStudents();
List <string> univTeachSudList = new List <string>();
foreach (var univer in univers)
{
int teachersCount = teachers.Count(t => t.UniverId == univer.Id);
int studentsCount = students.Count(s => s.UniverId == univer.Id);
univTeachSudList.Add($" The {univer.FullName} " +
$"({univer.Name}) has " +
$"{teachersCount} teachers and " +
$"{studentsCount} students. ");
}
return(univTeachSudList);
}
