Podczas wczytywania z pliku dane pierwszego filmu wczytują się dwa razy, reszta normalnie. Pewnie coś jest nie tak z funkcja "movies_from_file" lecz nie wiem dokładanie co. Proszę o pomoc.
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#define N 30
struct movies {
int id;
char title[N];
char producer[N];
char year[N];
char type[N];
int avaibility;
int renter;
struct movies *next;
};
struct movies_pointers
{
struct movies *head , *tail;
}movie;
void load_movie(struct movies *movie){
puts("Title: ");
scanf(" %[^\n]s",movie->title);
puts("Producer: ");
scanf(" %[^\n]s",movie->producer);
puts("Publication date: ");
scanf(" %[^\n]s",movie->year);
puts("Type of movie: ");
scanf(" %[^\n]s",movie->type);
movie->next=NULL;
}
struct movies* add_movie(struct movies_pointers *movies_ptr)
{
if(!movies_ptr) return NULL;
struct movies* new_movie = (struct movies *) malloc(sizeof(struct movies));
if(new_movie){
load_movie(new_movie);
new_movie->next=movies_ptr->head;
movies_ptr->head=new_movie;
if(!movies_ptr->tail) movies_ptr->tail = new_movie;
new_movie->id = new_movie->next ? new_movie->next->id + 1 : 0;
return new_movie;
}
printf("Malloc error!\n");
return new_movie;
}
int how_many_movies(struct movies_pointers movie){
int wynik=0;
while(movie.head){
movie.head=movie.head->next;
wynik++;
}
return wynik;
}
void print_movies(struct movies_pointers movie){
//movie.head->avaibility=0;
//movie.head->renter=0;
printf("AMOUNT OF MOVIES IN DATABASE: %d \n\n",how_many_movies(movie) );
how_many_movies(movie);
puts("SHOW ALL MOVIES - 1 \nSHOW RENTED MOVIES - 2\nSHOW AVAILABLE MOVIES -3");
int x;
scanf("%d",&x);
switch(x){
case 1:
puts("ID \tTITLE \t\t PRODUCER \t\t PUBLICATION DATE \t\t TYPE \t\t AVAIBILITY \t\t RENTER");
while(movie.head){
printf("%d \t %s \t\t %s \t\t\t %s \t\t %s \t\t %d \t\t %d\n",movie.head->id, movie.head->title, movie.head->producer, movie.head->year, movie.head->type, movie.head->avaibility, movie.head->renter);
movie.head=movie.head->next;
}
puts(" ");
break;
case 2:
puts("ID \tTITLE \t\t PRODUCER \t\t PUBLICATION DATE \t\t TYPE \t\t AVAIBILITY \t\t RENTER");
while(movie.head){
if(movie.head->avaibility==1)
printf("%d \t %s \t\t %s \t\t\t %s \t\t %s \t\t %d \t\t %d\n",movie.head->id, movie.head->title, movie.head->producer, movie.head->year, movie.head->type, movie.head->avaibility, movie.head->renter);
movie.head=movie.head->next;
}
puts(" ");
break;
case 3:
puts("ID \tTITLE \t\t PRODUCER \t\t PUBLICATION DATE \t\t TYPE \t\t AVAIBILITY \t\t RENTER");
while(movie.head){
if(movie.head->avaibility==0)
printf("%d \t %s \t\t %s \t\t\t %s \t\t %s \t\t %d \t\t %d\n",movie.head->id, movie.head->title, movie.head->producer, movie.head->year, movie.head->type, movie.head->avaibility, movie.head->renter);
movie.head=movie.head->next;
}
puts(" ");
break;
}
}
void save_movies(struct movies_pointers *save_movie_ptr)
{
struct movies *tmp= save_movie_ptr->head;
if(save_movie_ptr)
{
FILE *movies_txt = NULL;
movies_txt = fopen("movies.txt","w");
if(movies_txt){
while(tmp!=NULL)
{
fprintf(movies_txt, "%d\n", tmp->id );
fprintf(movies_txt, "%s\n", tmp->title);
fprintf(movies_txt, "%s\n", tmp->producer);
fprintf(movies_txt, "%s\n", tmp->year);
fprintf(movies_txt, "%s\n", tmp->type);
fprintf(movies_txt, "%d\n", tmp->avaibility);
fprintf(movies_txt, "%d\n", tmp->renter);
tmp = tmp->next;
}
fclose(movies_txt);
}
else
{
printf("Error");
}
}
}
/*struct movies *movies_from_file(struct movies * movies_from_file_ptr){
if(movies_from_file_ptr){
FILE * movies_txt = fopen("movies.txt","r");
while(!feof(movies_txt))
{
struct movies* new_movie = (struct movies *) malloc(sizeof(struct movies));
if(new_movie){
fscanf(movies_txt," %d\n",new_movie->id);
fscanf(movies_txt," %[^\n]s",new_movie->title);
fscanf(movies_txt," %[^\n]s",new_movie->producer);
fscanf(movies_txt," %[^\n]s",new_movie->year);
fscanf(movies_txt," %[^\n]s",new_movie->type);
fscanf(movies_txt," %d\n",new_movie->avaibility);
fscanf(movies_txt," %d",new_movie->renter);
new_movie->next=movies_from_file_ptr;
new_movie->id=new_movie->next->id+1;
movies_from_file_ptr=new_movie;
}
else
printf("Malloc error\n");
return new_movie;
}
fclose(movies_txt);
}
}
*/
void movies_from_file(struct movies * movies_from_file_ptr, struct movies_pointers *movies_ptr){
int id;
char title[30];
char producer[30];
char year[30];
char type[30];
int avaibility;
int renter;
FILE *movies;
movies = fopen("movies.txt","r");
if(movies){
while(!feof(movies))
{
struct movies* new_movie = (struct movies *) malloc(sizeof(struct movies));
fscanf(movies,"%d",&id);
fscanf(movies," %[^\n]s",title);
fscanf(movies," %[^\n]s",producer);
fscanf(movies," %[^\n]s",year);
fscanf(movies," %[^\n]s",type);
fscanf(movies,"%d",&avaibility);
fscanf(movies,"%d",&renter);
if(new_movie){
new_movie->id=id;
strncpy(new_movie->title,title,N);
strncpy(new_movie->producer,producer,N);
strncpy(new_movie->year,year,N);
strncpy(new_movie->type,type,N);
new_movie->avaibility=avaibility;
new_movie->renter=renter;
new_movie->next=movies_ptr->head;
movies_ptr->head=new_movie;
}
//new_movie->next=movies_from_file_ptr;
//new_movie->id=new_movie->next->id+1;
//movies_from_file_ptr=new_movie;
}
}
else{
puts("blad pliku");
}
fclose(movies);
}
void rent_a_movie(struct movies_pointers movie){
int c, m;
puts("type ID of client and movie: ");
scanf("%d",&c);
scanf("%d",&m);
while(movie.head){
if(movie.head->avaibility==0){
if(movie.head->id==m){
movie.head->avaibility=1;
movie.head->renter=c;
}
else{
movie.head=movie.head->next;
}
}
}
}
void search(struct movies_pointers movie){
char tag[N];
puts("SEARCHING BY TITLE - 1 \nSEARCHING BY PRODUCER - 2 \nSEARCHING BY TYPE - 3");
int x;
scanf("%d",&x);
if(x==1){
puts("Type name of movie you looking for.");
scanf(" %[^\n]s",tag);
while(movie.head){
if(!strcmp(movie.head->title,tag)){
printf("%d \t %s \t\t %s \t\t\t %s \t\t %s \t\t %d \t\t %d\n",movie.head->id, movie.head->title, movie.head->producer, movie.head->year, movie.head->type, movie.head->avaibility, movie.head->renter);
movie.head=movie.head->next;
}
else {puts("no results");
return -1;
}
}
}
else if(x==2){
puts("Type name of producer you looking for.");
scanf(" %[^\n]s",tag);
while(movie.head){
if(!strcmp(movie.head->producer,tag)){
printf("%d \t %s \t\t %s \t\t\t %s \t\t %s \t\t %d \t\t %d\n",movie.head->id, movie.head->title, movie.head->producer, movie.head->year, movie.head->type, movie.head->avaibility, movie.head->renter);
movie.head=movie.head->next;
}
else {puts("no results");
return -1;}
}
}
else if(x==3){
puts("Type name of movie you looking for.");
scanf(" %[^\n]s",tag);
while(movie.head){
if(!strcmp(movie.head->type,tag)){
printf("%d \t %s \t\t %s \t\t\t %s \t\t %s \t\t %d \t\t %d\n",movie.head->id, movie.head->title, movie.head->producer, movie.head->year, movie.head->type, movie.head->avaibility, movie.head->renter);
movie.head=movie.head->next;
}
else {puts("no results");
return -1;
}
}
}
else {puts("wrong code, try again");
search(movie);}
}
struct clients {
int id;
char name[N];
char surname[N];
char phone[N];
struct clients *next;
};
struct clients_pointers
{
struct clients *head , * tail;
}client;
void load_client(struct clients *client){
// puts("Id: ");
// scanf("%d",client->id);
puts("Name: ");
scanf(" %[^\n]s",client->name);
puts("Surname: ");
scanf(" %[^\n]s",client->surname);
puts("Phone number: ");
scanf(" %[^\n]s",client->phone);
client->next=NULL;
}
struct clients* add_client(struct clients_pointers *clients_ptr)
{
if(!clients_ptr) return NULL;
struct clients *new_client = (struct clients*) malloc(sizeof(struct clients));
if(new_client){
load_client(new_client);
new_client->next=clients_ptr->head;
clients_ptr->head=new_client;
if(!clients_ptr->tail) clients_ptr->tail =new_client;
new_client->id =new_client->next ? new_client->next->id + 1 : 0;
return new_client;
}
printf("Malloc error!\n");
return new_client;
}
void print_clients(struct clients_pointers client){
puts("ID\t NAME \t\t SURNAME \t\t PHONE");
while(client.head){
printf("%d \t %s \t\t %s \t\t %s\n",client.head->id, client.head->name, client.head->surname, client.head->phone);
client.head=client.head->next;
}
puts(" ");
}
void save_clients(struct clients_pointers *save_clients_ptr)
{
struct clients *tmp = save_clients_ptr->head;
if(save_clients_ptr)
{
FILE *clients_txt = NULL;
clients_txt = fopen("clients.txt","w");
while(tmp!=NULL)
{
fprintf(clients_txt, "%d\n", tmp->id);
fprintf(clients_txt, "%s\n", tmp->name);
fprintf(clients_txt, "%s\n", tmp->surname);
fprintf(clients_txt, "%s\n", tmp->phone);
tmp = tmp->next;
}
fclose(clients_txt);
}
else
{
printf("Error");
}
}
void clients_from_file(struct clients * clients_from_file_ptr, struct clients_pointers * clients_ptr){
int id;
char name[N];
char surname[N];
char phone[N];
FILE *clients;
clients = fopen("clients.txt","r");
if(clients){
while(!feof(clients)){
struct clients* new_client = (struct clients *) malloc(sizeof(struct clients));
fscanf(clients,"%d",&id);
fscanf(clients," %[^\n]s",name);
fscanf(clients," %[^\n]s",surname);
fscanf(clients," %[^\n]s",phone);
if(new_client){
new_client->id=id;
strncpy(new_client->name,name,N);
strncpy(new_client->surname,surname,N);
strncpy(new_client->phone,phone,N);
new_client->next=clients_ptr->head;
clients_ptr->head=new_client;
}
}
}
else{
puts("\nblad pliku");
}
fclose(clients);
}
int main()
{
struct movies* movies_from_file_ptr =NULL;
struct clients* clients_from_file_ptr = NULL;
int x;
puts("0 - CLOSE \t\n1 - LIST OF MOVIES \t\n2 - LIST OF CLIENTS \t\n3 - SEARCHING \t\n4 - ADD MOVIE \t\n5 - ADD CLIENT \t\n6 - RENT A MOVIE \n7 - SAVE\n8 - LOAD FROM FILE ");
scanf("%d",&x);
while(x!=0){
switch(x)
{
case 1: print_movies(movie); break;
case 2: print_clients(client); break;
case 3: search(movie); break;
case 4: add_movie(&movie); break;
case 5: add_client(&client); break;
case 6: rent_a_movie(movie); break;
case 7: save_movies(&movie);
save_clients(&client);
break;
case 8: movies_from_file(movies_from_file_ptr, &movie);
clients_from_file(clients_from_file_ptr, &client);
break;
default: puts("wrong code.");
}
puts("0 - CLOSE \t\n1 - LIST OF MOVIES \t\n2 - LIST OF CLIENTS \t\n3 - SEARCHING \t\n4 - ADD MOVIE \t\n5 - ADD CLIENT \t\n6 - RENT A MOVIE \n7 - SAVE\n8 - LOAD FROM FILE");
scanf("%d",&x);
}
return 0;
}
