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basically finished list item,

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no yet confirm stock column
This commit is contained in:
smarttommyau 2022-08-27 19:00:57 +08:00
parent fcbd309c69
commit 7b1ccd61d2
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GPG Key ID: D7832FC94BD13B6A
5 changed files with 35 additions and 26 deletions
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5
.vscode/settings.json vendored Normal file
View File

@ -0,0 +1,5 @@
{
"files.associations": {
"stdio.h": "c"
}
}

2
data_file_inventory.txt
View File

@ -1,4 +1,4 @@
#category, brand, product, price, stock, barcode
#category, brand, product, price`vc , stock, barcode
Test
Testing Co Ltd
Testing Product

20
database.h
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@ -26,7 +26,7 @@ typedef struct inventory{
};
typedef struct inventory_row{
char category[100];
char band[100];
char brand[100];
char product[100];
double price;
int stock;
@ -54,9 +54,9 @@ typedef struct transaction_row{
bool isdeleted;//common for all rows,default is false
};
typedef enum {
date = 1, time = 2, id_tran = 3, price_tran = 5, quantity = 4, barcode_tran = 7
date = 1, time = 2, id_tran = 3, price_tran = 4, quantity = 5, barcode_tran = 6
}TRANSACTION;
#define ENDOFTRANSACTION 7
#define ENDOFTRANSACTION 6
//user
#define USER_DB "data_file_user.txt"
typedef struct user{
@ -88,15 +88,17 @@ int basic_get_row_count(int end, FILE *fp){
while(!feof(fp)&&!ferror(fp)){
char buffer[100];
fgets(buffer, sizeof(buffer),fp);
if(buffer[0] == '#'){//catch comment line and ignore
if(buffer[0] == '#' || buffer[0] == '\0'){//catch comment line and ignore
continue;
}
colmun_count++;
puts(buffer);
if(colmun_count == end){
row_count++;
colmun_count = 0;
}
}
return row_count;
}
struct inventory read_db_invt(){//please open file in read mode
@ -113,7 +115,7 @@ struct inventory read_db_invt(){//please open file in read mode
//read data
for(int i=0;i<row_count;i++){
db.row[i].isdeleted = false;
for(INVENTORY j=category;j<ENDOFINVENTORY;j++){
for(INVENTORY j=category;j<=ENDOFINVENTORY;j++){
char buffer[100];
fgets(buffer, sizeof(buffer),fp);
if(buffer[0] == '#'){//catch comment line and ignore
@ -124,7 +126,7 @@ struct inventory read_db_invt(){//please open file in read mode
strcpy(db.row[i].category,buffer);
break;
case brand:
strcpy(db.row[i].band,buffer);
strcpy(db.row[i].brand,buffer);
break;
case product:
strcpy(db.row[i].product,buffer);
@ -169,7 +171,7 @@ struct transaction read_db_tran(){
//read data
for(int i=0;i<row_count;i++){
db.row[i].isdeleted = false;
for(TRANSACTION j=date;j<ENDOFTRANSACTION;j++){
for(TRANSACTION j=date;j<=ENDOFTRANSACTION;j++){
char buffer[100];
fgets(buffer, sizeof(buffer),fp);
if(buffer[0] == '#'){//catch comment line and ignore
@ -222,7 +224,7 @@ struct user read_db_user(){
//read data
for(int i=0;i<row_count;i++){
db.row[i].isdeleted = false;
for(USER j=name;j<ENDOFUSER;j++){
for(USER j=name;j<=ENDOFUSER;j++){
char buffer[100];
fgets(buffer, sizeof(buffer),fp);
if(buffer[0] == '#'){//catch comment line and ignore
@ -282,7 +284,7 @@ bool update_db_invt(struct inventory* invt){
fprintf(fpW,"%s",invt->row[i].category);
break;
case brand:
fprintf(fpW,"%s",invt->row[i].band);
fprintf(fpW,"%s",invt->row[i].brand);
break;
case product:
fprintf(fpW,"%s",invt->row[i].product);

1
main.c
View File

@ -26,6 +26,7 @@ int main(){
bool check;
do
{
system("cls");
//print welcome message
//prompt weather user is admin or normal user
//then redirect them to the corisponding menu

33
normal_user.h
View File

@ -79,13 +79,11 @@ void list_items(){
int page = 0;
int page_size = PAGE_SIZE;
struct inventory db = read_db_invt();
int total_pages = ceil(db.db.row_count / page_size);
int total_pages = (int)ceil((double)db.db.row_count / page_size);
struct Map* map = NULL;
do{
//ooptions
//options
system("cls");
printf("0 exit\n");
printf("1 sort name decending\n");
@ -99,17 +97,17 @@ void list_items(){
printf("List of items:\n");
//print items
if(map == NULL){
print_page(db, page * page_size, (page + 1== total_pages)?db.db.row_count:(page+1) * page_size,(struct Map*)NULL);
if(page + 1 >= total_pages){
print_page(db, page * page_size, db.db.row_count,map);
}else{//sorted)
print_page(db, page * page_size, (page + 1== total_pages)?db.db.row_count:(page+1) * page_size,map);
print_page(db, page * page_size, (page + 1) * page_size,map);
}
//page control
printf("%d next page\n", page_size+3);
printf("%d previous page\n", page_size+4);
printf("%d set page size\n", page_size+5);
printf("%D/%d/%d(page size/page number/total)\n",page_size, page+1,total_pages);
printf("%d/%d/%d(page size/page number/total)\n",page_size, page+1,total_pages);
//prompt user to select an item
bool valid = true;
@ -127,9 +125,10 @@ void list_items(){
printf("Enter page size: ");
scanf("%d", &page_size);
total_pages = ceil(db.db.row_count / page_size);
}else if(choice >= 0 && choice < db.db.row_count){
show_item(db,choice-9 + page_size*page);
}else{
}else if(choice >= 9 && choice < db.db.row_count+9){
printf("s");
show_item(db,choice - 9 + page_size*page);
}else if(choice != 0){
printf("Invalid choice\n");
valid = false;
}
@ -153,7 +152,7 @@ struct Map* sortItems(struct inventory db, int sort){
break;
case 5:
case 6:
map[i].value = (int)db.row[i].band;
map[i].value = (int)db.row[i].brand;
break;
case 7:
case 8:
@ -182,10 +181,10 @@ void print_page(struct inventory db, int cur, int end,struct Map* map){
for (int i = cur; i < end; i++)
{
if(map != NULL){
printf("%d. %s\n", i + 1, db.row[map[i].key].product);
printf("%d item: %s\n", i + 9, db.row[map[i].key].product);
}
else{
printf("item%d. %s\n", i + 3, db.row[i].product);
printf("%d item: %s\n", i + 9, db.row[i].product);
}
}
}
@ -194,11 +193,13 @@ void show_item(struct inventory db,int index){
system("cls");
printf("Product: %s\n", db.row[index].product);
printf("Catergory: %s\n", db.row[index].category);
printf("Band: %d\n", db.row[index].band);
printf("Brand: %d\n", db.row[index].brand);
printf("Price: $%lf\n", db.row[index].price);
printf("Stock: %d\n", db.row[index].stock);
printf("Barcode: %ld\n",db.row[index].barcode);
printf("Press any key to return to the list\n");
fflush(stdin);
getchar();
return;
}