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May 25, 2020 17:42
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#include "FileUtil.h" | |
#include "Date.h" | |
#include "Utils.h" | |
#include <iostream> | |
#include <fstream> | |
#include <string> | |
using namespace std; | |
struct Session{ | |
char subj[100][200]; | |
int marks[10]; | |
int count; | |
} typedef Session; | |
struct Student{ | |
char name[50]; | |
char birth[15]; | |
int postup; | |
char kaf[20]; | |
char group[15]; | |
char zachetka[15]; | |
Session sessions[9]; | |
int sessionsCout; | |
int gender; | |
} typedef Student; | |
bool FileUtil::validateStudent(const char num[]){ | |
FILE *file; | |
file = fopen("person.dat", "r+"); | |
Student output; | |
while(!feof(file)){ | |
if(fread(&output, sizeof(struct Student), 1, file)){ | |
if(strcmp(output.zachetka, num) == 0){ | |
fclose(file); | |
return false; | |
} | |
} | |
} | |
fclose(file); | |
return true; | |
} | |
int FileUtil::getStudentCount(){ | |
int i = 0; | |
FILE *file; | |
file = fopen("person.dat", "r+"); | |
Student output; | |
while(!feof(file)){ | |
if(fread(&output, sizeof(struct Student), 1, file)){ | |
i++; | |
} | |
} | |
fclose(file); | |
return i; | |
} | |
bool FileUtil::isEmpty(){ | |
ifstream base("person.dat"); | |
if (base.is_open ()){ | |
base.seekg (0, ios::end); | |
int size = base.tellg(); | |
base.seekg (0, ios::beg); | |
if (size == 0){ | |
base.close(); | |
return true; | |
} | |
} | |
return false; | |
} | |
bool FileUtil::checkFile() { | |
ifstream file; | |
file.open("person.dat"); | |
return !!file; | |
} | |
void FileUtil::printAll() { | |
FILE *file; | |
file = fopen("person.dat", "r+"); | |
int n = FileUtil::getStudentCount(); | |
cout << "ФИО | Дата рождения | Год поступления | Кафедра | Группа | Номер зачётки" << endl; | |
for (int i = 0; i < n; i++) { | |
Student output1; | |
fread(&output1, sizeof(struct Student), 1, file); | |
printf_s("%s, %s, %d, %s, %s, %s \n", output1.name, output1.birth, output1.postup, output1.kaf, output1.group, output1.zachetka); | |
} | |
fclose(file); | |
} | |
void FileUtil::printMarks(Student output){ | |
int count = output.sessionsCout; | |
int sess = 0; | |
for(int i = 0; i < count; i++){ | |
sess++; | |
cout << "Сессия #" + to_string(sess) << endl; | |
int subjCount = output.sessions[i].count; | |
for(int x = 0; x < subjCount; x++){ | |
cout << output.sessions[i].subj[x]; | |
cout << ": "; | |
cout << output.sessions[i].marks[x] << endl; | |
} | |
} | |
} | |
bool FileUtil::genderCheck(int gender, Student student){ | |
return student.gender == gender || gender == 3; | |
} | |
bool FileUtil::calculate(int action, Student student){ | |
double first = 0, all = 0; | |
int count = student.sessionsCout; | |
switch (action) { | |
case 1:{ | |
for(int i = 0; i < count; i++){ | |
int subjCount = student.sessions[i].count; | |
for(int x = 0; x < subjCount; x++){ | |
if(student.sessions[i].marks[x] == 3){ | |
first++; | |
} | |
all++; | |
} | |
} | |
cout << first/all << endl; | |
return first/all < 0.25; | |
} | |
case 2:{ | |
for(int i = 0; i < count; i++){ | |
int subjCount = student.sessions[i].count; | |
for(int x = 0; x < subjCount; x++){ | |
if(student.sessions[i].marks[x] == 3 || student.sessions[i].marks[x] == 4){ | |
first++; | |
} | |
all++; | |
} | |
} | |
cout << first/all << endl; | |
return first/all < 0.25; | |
} | |
case 3:{ | |
for(int i = 0; i < count; i++){ | |
int subjCount = student.sessions[i].count; | |
for(int x = 0; x < subjCount; x++){ | |
if(student.sessions[i].marks[x] == 5){ | |
first++; | |
} | |
all++; | |
} | |
} | |
return first/all < 0.25; | |
} | |
case 4:{ | |
for(int i = 0; i < count; i++){ | |
int subjCount = student.sessions[i].count; | |
for(int x = 0; x < subjCount; x++){ | |
if(student.sessions[i].marks[x] == 3 || student.sessions[i].marks[x] == 5){ | |
first++; | |
} | |
all++; | |
} | |
} | |
cout << first/all << endl; | |
return first/all < 0.25; | |
} | |
case 5:{ | |
for(int i = 0; i < count; i++){ | |
int subjCount = student.sessions[i].count; | |
for(int x = 0; x < subjCount; x++){ | |
if(student.sessions[i].marks[x] == 4 || student.sessions[i].marks[x] == 5){ | |
first++; | |
} | |
all++; | |
} | |
} | |
return first/all < 0.25; | |
} | |
default:{ | |
cout << "Магическая ошибка" << endl; | |
} | |
} | |
return false; | |
} | |
void FileUtil::sorting(int action){ | |
bool found = false; | |
FILE *file; | |
Student output; | |
file = fopen("person.dat", "r+"); | |
cout << "Введите код сортировки по полу." << endl; | |
cout << "1. Мужской." << endl; | |
cout << "2. Женский." << endl; | |
cout << "3. Любой." << endl; | |
int code = Utils::validateInt(1, 3); | |
while (!feof(file)) { | |
if (fread(&output, sizeof(struct Student), 1, file)) { | |
if (FileUtil::calculate(action, output) && FileUtil::genderCheck(code, output)) { | |
found = true; | |
cout << "ФИО | Дата рождения | Год поступления | Кафедра | Группа | Номер зачётки" << endl; | |
printf_s("%s, %s, %d, %s, %s, %s \n", output.name, output.birth, output.postup, output.kaf, output.group, output.zachetka); | |
FileUtil::printMarks(output); | |
} | |
} | |
} | |
if(!found){ | |
cout << "Студенты не найдены!" << endl; | |
} | |
fclose(file); | |
} | |
void FileUtil::allStudentMarks(const char zach[]){ | |
FILE *file; | |
Student output; | |
file = fopen("person.dat", "r+"); | |
while (!feof(file)) { | |
if (fread(&output, sizeof(struct Student), 1, file)) { | |
if (strcmp(output.zachetka, zach) == 0) { | |
printMarks(output); | |
} | |
} | |
} | |
} | |
void FileUtil::studentAction(const char zach[], int action) { | |
FILE *file; | |
file = fopen("person.dat", "r+"); | |
Student output; | |
bool found = false; | |
while (!feof(file)) { | |
if (fread(&output, sizeof(struct Student), 1, file)) { | |
if (strcmp(output.zachetka, zach) == 0) { | |
fclose(file); | |
switch (action) { | |
case 1:{ | |
FileUtil::recreateFileWithDelete(zach); | |
found = true; | |
break; | |
} | |
case 2:{ | |
FileUtil::recreateFileWithEdit(zach); | |
found = true; | |
break; | |
} | |
case 3:{ | |
FileUtil::allStudentMarks(zach); | |
found = true; | |
break; | |
} | |
default: { | |
cout << "Магическая ошибка" << endl; | |
break; | |
} | |
} | |
} | |
} | |
} | |
if(!found){ | |
cout << "Студент не найден!" << endl; | |
} | |
} | |
void FileUtil::recreateFileWithEdit(const char zach[]){ | |
remove("temp.dat"); | |
FILE *file = fopen("person.dat", "r+"); | |
FILE *temp = fopen("temp.dat", "a+t"); | |
int n = FileUtil::getStudentCount(); | |
Student output1; | |
for (int i = 0; i < n; i++) { | |
fread(&output1, sizeof(struct Student), 1, file); | |
if(strcmp(output1.zachetka, zach) != 0){ | |
fwrite(&output1, sizeof(struct Student), 1, temp); | |
}else{ | |
cout << "ФИО | Дата рождения | Год поступления | Кафедра | Группа | Номер зачётки" << endl; | |
printf_s("%s, %s, %d, %s, %s, %s \n", output1.name, output1.birth, output1.postup, output1.kaf, output1.group, output1.zachetka); | |
cout << "Введите номер действия: " << endl; | |
cout << "1. Изменить ФИО." << endl; | |
cout << "2. Изменить дату рождения" << endl; | |
cout << "3. Изменить год поступления." << endl; | |
cout << "4. Изменить кафедру." << endl; | |
cout << "5. Изменить группу." << endl; | |
cout << "6. Изменить номер зачётки." << endl; | |
cout << "7. Изменить пол." << endl; | |
cout << "8. Изменить информацию о сессиях." << endl; | |
int action = Utils::validateInt(1, 8); | |
string fa, name, ot, fio, date, fak, kaf, group; | |
switch (action) { | |
case 1: { | |
cout << "Введите Фамилию." << endl; | |
getline(cin, fa); | |
fio.append(fa); | |
cout << "Введите Имя." << endl; | |
getline(cin, name); | |
fio.append(" " + name); | |
cout << "Введите Отчество." << endl; | |
getline(cin, ot); | |
fio.append(" " + ot); | |
strcpy_s(output1.name, fio.c_str()); | |
cout << "ФИО изменено" << endl; | |
break; | |
} | |
case 2:{ | |
cout << "Введите дату рождения в формате ДД.ММ.ГГГГ" << endl; | |
getline(cin, date); | |
while (!Date::isValid(date)) { | |
cout << "Дата введена некорректно! Повторите ввод." << endl; | |
getline(cin, date); | |
} | |
strcpy_s(output1.birth, date.c_str()); | |
cout << "Дата рождения изменена." << endl; | |
break; | |
} | |
case 3:{ | |
cout << "Введите год постепления в университет." << endl; | |
string temp1; | |
getline(cin, temp1); | |
while (!Utils::isValid(temp1)) { | |
cout << "Год введён некорректно! Повторите ввод." << endl; | |
getline(cin, temp1); | |
} | |
output1.postup = stoi(temp1); | |
cout << "Год поступления изменен." << endl; | |
break; | |
} | |
case 4:{ | |
cout << "Введите факультет." << endl; | |
getline(cin, fak); | |
cout << "Введите кафедру." << endl; | |
getline(cin, kaf); | |
fak.append(" " + kaf); | |
strcpy_s(output1.kaf, fak.c_str()); | |
cout << "Факультет и кафедра изменены." << endl; | |
break; | |
} | |
case 5:{ | |
cout << "Введите группу." << endl; | |
getline(cin, group); | |
strcpy_s(output1.group, group.c_str()); | |
cout << "Группа изменена" << endl; | |
break; | |
} | |
case 6:{ | |
cout << "Введите номер зачётки." << endl; | |
string temp2; | |
getline(cin, temp2); | |
while(!validateStudent(temp2.c_str())){ | |
cout << "Данный номер уже есть в базе! Введите новый или напишите 0 чтобы прервать." << endl; | |
getline(cin, temp2); | |
} | |
strcpy_s(output1.zachetka, temp2.c_str()); | |
cout << "Номер зачётки изменен" << endl; | |
zach = output1.zachetka; | |
break; | |
} | |
case 7:{ | |
cout << "Введите пол. 1 - М, 2 - Ж" << endl; | |
int gender = Utils::validateInt(1, 2); | |
output1.gender = gender; | |
cout << "Пол изменен." << endl; | |
break; | |
} | |
case 8:{ | |
int x; | |
int str = Utils::validateInt(1, 9); | |
cout << "Введите количество сессий" << endl; | |
output1.sessionsCout = str; | |
x = str; | |
int sess = 0; | |
for (int y = 0; y < x; y++) { | |
sess++; | |
cout << "Введите данные для сессии #" + to_string(sess) << endl; | |
string subj; | |
cout << "Введите количество предметов в данной сессии." << endl; | |
int count = Utils::validateInt(1, 10); | |
Session session; | |
session.count = count; | |
for (int num = 0; num < count; num++) { | |
cout << "Введите предмет." << endl; | |
getline(cin, subj); | |
char ff[100]; | |
strcpy_s(ff, subj.c_str()); | |
strcpy_s(session.subj[num], ff); | |
cout << "Введите оценку по предмету " + subj << endl; | |
int tem = Utils::validateInt(2, 5); | |
session.marks[num] = tem; | |
output1.sessions[y] = session; | |
} | |
} | |
cout << "Информация о сессиях изменена." << endl; | |
break; | |
} | |
} | |
fwrite(&output1, sizeof(struct Student), 1, temp); | |
} | |
} | |
fclose(file); | |
fclose(temp); | |
remove("person.dat"); | |
FILE *file2 = fopen("person.dat", "a+t"); | |
FILE *temp2 = fopen("temp.dat", "a+t"); | |
for (int i = 0; i < n; i++) { | |
Student student; | |
fread(&student, sizeof(struct Student), 1, temp2); | |
fwrite(&student, sizeof(struct Student), 1, file2); | |
} | |
fclose(temp2); | |
fclose(file2); | |
remove("temp.dat"); | |
} | |
void FileUtil::recreateFileWithDelete(const char zach[]){ | |
remove("temp.dat"); | |
int n = FileUtil::getStudentCount(); | |
FILE *file = fopen("person.dat", "r+"); | |
FILE *temp = fopen("temp.dat", "a+t"); | |
for (int i = 0; i < n; i++) { | |
Student output1; | |
fread(&output1, sizeof(struct Student), 1, file); | |
if(strcmp(output1.zachetka, zach) != 0){ | |
fwrite(&output1, sizeof(struct Student), 1, temp); | |
} | |
} | |
fclose(file); | |
fclose(temp); | |
remove("person.dat"); | |
file = fopen("person.dat", "a+t"); | |
temp = fopen("temp.dat", "r+"); | |
n--; | |
for (int i = 0; i < n; i++) { | |
Student output1; | |
fread(&output1, sizeof(struct Student), 1, temp); | |
if(output1.zachetka != zach){ | |
fwrite(&output1, sizeof(struct Student), 1, file); | |
} | |
} | |
fclose(temp); | |
fclose(file); | |
remove("temp.dat"); | |
cout << "Студент удален успешно." << endl; | |
} | |
void FileUtil::enterStudent() { | |
Student stud; | |
string fa, name, ot, fio, date, fak, kaf, group; | |
cout << "Введите Фамилию." << endl; | |
getline(cin, fa); | |
fio.append(fa); | |
cout << "Введите Имя." << endl; | |
getline(cin, name); | |
fio.append(" " + name); | |
cout << "Введите Отчество." << endl; | |
getline(cin, ot); | |
fio.append(" " + ot); | |
strcpy_s(stud.name, fio.c_str()); | |
cout << "Введите дату рождения в формате ДД.ММ.ГГГГ" << endl; | |
getline(cin, date); | |
while (!Date::isValid(date)) { | |
cout << "Дата введена некорректно! Повторите ввод." << endl; | |
getline(cin, date); | |
} | |
strcpy_s(stud.birth, date.c_str()); | |
cout << "Введите год постепления в университет." << endl; | |
string temp; | |
getline(cin, temp); | |
while (!Utils::isValid(temp)) { | |
cout << "Год введён некорректно! Повторите ввод." << endl; | |
getline(cin, temp); | |
} | |
stud.postup = stoi(temp); | |
cout << "Введите факультет." << endl; | |
getline(cin, fak); | |
cout << "Введите кафедру." << endl; | |
getline(cin, kaf); | |
fak.append(" " + kaf); | |
strcpy_s(stud.kaf, fak.c_str()); | |
cout << "Введите группу." << endl; | |
getline(cin, group); | |
strcpy_s(stud.group, group.c_str()); | |
cout << "Введите номер зачётки." << endl; | |
string temp2; | |
getline(cin, temp2); | |
while(!validateStudent(temp2.c_str())){ | |
cout << "Данный номер уже есть в базе! Введите новый или напишите 0 чтобы прервать." << endl; | |
getline(cin, temp2); | |
} | |
strcpy_s(stud.zachetka, temp2.c_str()); | |
cout << "Введите пол. 1 - М, 2 - Ж" << endl; | |
int gender = Utils::validateInt(1, 2);; | |
stud.gender = gender; | |
int x; | |
cout << "Введите количество сессий" << endl; | |
int str = Utils::validateInt(1, 9); | |
stud.sessionsCout = str; | |
x = str; | |
int sess = 0; | |
for (int y = 0; y < x; y++) { | |
sess++; | |
cout << "Введите данные для сессии #" + to_string(sess) << endl; | |
string subj; | |
cout << "Введите количество предметов в данной сессии." << endl; | |
int count = Utils::validateInt(1, 10); | |
Session session; | |
session.count = count; | |
for (int num = 0; num < count; num++) { | |
cout << "Введите предмет." << endl; | |
getline(cin, subj); | |
char ff[100]; | |
strcpy(ff, subj.c_str()); | |
strcpy_s(session.subj[num], ff); | |
cout << "Введите оценку по предмету " + subj << endl; | |
int tem = Utils::validateInt(2, 5); | |
session.marks[num] = tem; | |
stud.sessions[y] = session; | |
} | |
} | |
cout << "Данные студента успешно сохранены!" << endl; | |
FILE *file; | |
file = fopen("person.dat", "a+t"); | |
fwrite(&stud, sizeof(struct Student), 1, file); | |
fclose(file); | |
} |
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