works, fixed another db problem

Park_time.cpp

@@ -60,7 +60,8 @@ std::ostream& operator<<(std::ostream& os, const Park_time& pt) {
     os << "Customer # " << pt.customer_id << "at parking spot " << pt.spot_id << "\n";
     os << "Clocked in :" << std::ctime(&start_);
     os << "clocked out : " << std::ctime(&end_);
-    os << "duration : " << pt.duration/3600 << "\n";
+    float dur_h = pt.duration / 3600.0;
+    os << "duration : " << dur_h << " h\n";
     os << "- - - - - - - - - - - - - - - - - - - -\n";
     return os;
 }

Query.cpp

@@ -149,7 +149,6 @@ vector<Park_time> reports_from_customer(int cid, pair<int, int> period) {
     vector<Park_time> park_times;
     int verhicle = int(query_customer_with_id(cid).vehicle);
     float sum = 0;
-    cout << period.first; // debug
     SQLite::Statement query(
         data::db, "SELECT * FROM Park_time WHERE customer_id = ? AND start > ? AND end < ?;");
     query.bind(1, cid);
@@ -162,14 +161,14 @@ vector<Park_time> reports_from_customer(int cid, pair<int, int> period) {
         int duration = query.getColumn(5);
         Park_time result{id, cid, spotid, start, duration};
         park_times.push_back(result);
-        sum += duration;
+        sum += duration/3600;
     }
     query.reset();
 
     for (auto i : park_times) {
         cout << i;
-        sum += i.duration / 3600;
+        sum += i.duration / 3600.0;
     }
-    cout << "Your fees for this month: $" << sum * verhicle << "/n";
+    cout << "Your fees for this month: $" << sum * verhicle << "\n";
     return park_times;
 }