Member Avatar for redrum237

hi.

i am looking to run the following queries from the project zipped with this message:

1. List all lecturers in alphabetic order by surname within a selected department.
2. List all lecturers within a selected faculty.
3. List all modules taught by a selected lecturer.

i am having trouble doing these and was hoping to be pointed in the right direction. any help in this would be extremely appreciated.

Student_Reporting_System.zip (769.82 KB)
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  • Latest Post Latest Post by redrum237

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Generated

Given the three files called out (lecturer.h/.cpp, faculty.h/.cpp and main.cpp) the usual, robust pattern is: make a stable link between Lecturer and Faculty (an id or a Faculty*), filter the lecturer collection by that link, then sort the filtered list by surname. was right to ask for scope — focus changes only inside the Lecturer/Faculty classes and the display code in main.cpp.

A compact C++ approach (conceptual):

auto getSurname = [](const std::string &full){
  size_t p = full.find_last_of(' ');
  return (p==std::string::npos) ? full : full.substr(p+1);
};

std::vector<const Lecturer*> lecturersInFaculty(int facultyId,
                                                const std::vector<Lecturer> &all){
  std::vector<const Lecturer*> out;
  for (const auto &L : all)
    if (L.facultyId == facultyId) out.push_back(&L);
  std::sort(out.begin(), out.end(),
            [&](const Lecturer* a, const Lecturer* b){
              return getSurname(a->fullName) < getSurname(b->fullName);
            });
  return out;
}

For "modules taught by a lecturer", either give Lecturer a std::vector<int> moduleIds or store lecturerId on Module and filter modules the same way. Notes: store surname separately if possible (avoids fragile parsing), use case-insensitive compare for real sorting, and avoid returning pointers to temporaries (keep the source container alive or return indices/references). If data lives in a database, the equivalent is a JOIN with ORDER BY surname.

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Member Avatar for Salem

Like a more specific question than "I've got problems, and here's a 3/4 Meg ZIP file for you to dig through" ?

Member Avatar for redrum237

im sorry.

basically, the problem i want to know how to solve, is to find a way to list all lecturers in a certain faculty.

so the only files that need looking at are lecturer.h/.cpp, faculty.h/.cpp and main.cpp

i am unsure how to display more than 1 file at a time, as i can easily display lecturers on theire own, or faculty on its own. but i dont know how to find all lecturers in a certain faculty.

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