Actualiser db.cpp

db.cpp

@@ -2,31 +2,48 @@
 #include <fstream>
 #include <iostream>
 
-bool exportData(const std::string& filename, const std::vector<Student>& students) {
+bool exportData(const std::string& filename, const std::vector<Student>& students, const std::string& role, const std::string& login){
     std::ofstream file(filename);
     if(!file.is_open()) return false;
 
-    for(auto& s : students){
+    if(role == "ADMIN" || role == "PROF"){
+        for(const auto& s : students){
             file << s.nom << " " << s.notes[0] << " " << s.notes[1] << " " << s.notes[2] << "\n";
         }
+    } else if(role == "STUDENT"){
+        for(const auto& s : students){
+            if(s.nom == login){
+                file << s.nom << " " << s.notes[0] << " " << s.notes[1] << " " << s.notes[2] << "\n";
+            }
+        }
+    }
+
     file.close();
     return true;
 }
 
-bool importData(const std::string& filename, std::vector<Student>& students) {
+bool importData(const std::string& filename, std::vector<Student>& students, const std::string& role){
+    if(role == "STUDENT"){
+        std::cout << "Import interdit pour STUDENT.\n";
+        return false;
+    }
+
     std::ifstream file(filename);
     if(!file.is_open()) return false;
 
     std::string nom;
     int n1,n2,n3;
-    int i = 0;
-    while(file >> nom >> n1 >> n2 >> n3 && i < students.size()){
-        students[i].nom = nom;
-        students[i].notes[0] = n1;
-        students[i].notes[1] = n2;
-        students[i].notes[2] = n3;
-        i++;
+
+    while(file >> nom >> n1 >> n2 >> n3){
+        for(auto& s : students){
+            if(s.nom == nom){
+                s.notes[0] = n1;
+                s.notes[1] = n2;
+                s.notes[2] = n3;
             }
+        }
+    }
+
     file.close();
     return true;
 }