book_library.cpp

Contains a project related to the managment of a Telephone Directory... Feel free to download and us

/*	                   PROJECT BOOK LIBRARY */
//    -:	INCLUDED HEADER FILES

#include "fstream.h"
#include "string.h"
#include "stdlib.h"
#include "stdio.h"
#include "ctype.h"
#include "conio.h"
#include "dos.h"

// THIS CLASS CONTROL ALL THE FUNCTIONS IN THE
//             -:MENU

class MENU
{
	public :
		void ma_menu(void) ;

	private :
		void ed_menu(void) ;
		void ed_book(void) ;
		void ed_member(void) ;
};

// THIS CLASS CONTAINS FUNCTIONS RELATED TO
//             -:BOOKS

class BOOK
{
	public :
		void table(void) ;
		char *b_name(int) ;

	protected :
		void add_book(int, char tname[33], char tauthor[26], float, int, int) ;
		void update_copies(int, int, int) ;
		void change(int, char[], char[], float) ;
		void deletion(void) ;
		int  b_found(int) ;
		int  b_name_found(char []) ;
		int  recordno(int) ;
		int  available(int) ;
		char *a_name(int) ;
		float b_price(int) ;
		int  no_of_copies(int) ;
		int  b_codeof(char[]) ;
		void display(int) ;
		int  reccount(void) ;
		void delete_rec(int) ;

	private :
	       int   bookcode, copies ;
	       char  name[33], author[26] ;
	       float price ;
	       int   avail ;
};

// THIS CLASS CONTAINS FUNCTIONS RELATED TO
//             -:MEMBERS

class MEMBER
{
	public :
		void jot(void) ;

	protected :
		void add_mem(int,int,char[],char[],char[],int,int,int) ;
		void mod(int,char[],char[],char[]) ;
		void deletion(void) ;
		int  m_found(int) ;
		void update_b(int,int,int,int,int) ;
		char *m_name(int) ;
		char *m_phone(int) ;
		char *m_address(int) ;
		int  recordno(int) ;
		int  ltcode(void) ;
		int  issued(int) ;
		int  fine(int) ;
		void display(int) ;
		void del_rec(int) ;

	private :
		int  memcode,bookcode ;
		char name[26],phone[10],address[33] ;
		int  dd,mm,yy ;                      // DATE OF RETURNING THE BOOK //
};

// THIS IS DERIVED FROM THE BASE CLASSES
//             -:BOOK & MEMBER
// AND CONTAINS FUNCTIONS FOR WORKING (i.e. ISSUE,RETURN,ETC).


class WORKING : public BOOK, public MEMBER  //INHERITING PUBLIC MEMBERS
{
     public :
	void issue_b(void);
	void return_b(void);
	void add_b(void);
	void add_m(void);
	void modify_b(void);
	void modify_m(void);
	void delete_b(void);
	void delete_m(void);
  };

// THIS CLASS CONTAINS FUNCTIONS RELATED TO
//             -:DATE & FINE (FOR LATE RETURNING OF THE BOOK)

class DATE
  {
     public :
	void ex_date(int,int,int,int);
	int  diff(int,int,int,int,int,int);
	int  day, mon, year ;
  };

// FUNCTION TO EXTEND GIVEN DATE BY 15 DAYS

void DATE :: ex_date(int d1,int m1,int y1,int days)
  {
     static int month[]={31,29,31,30,31,30,31,31,30,31,30,31};
     for (int i=1;i<=days;i++)
      {
       d1++;
       if((d1>month[m1-1]) || (y1%4!=0 && m1==2 && d1>28))
	{
	 d1=1;
	 m1++;
	}
       if (m1>12)
	{
	 m1=1;
	 y1++;
	}
      }
     day = d1;
     mon = m1;
     year= y1;
  }

// THIS FUNCTION RETURNS THE DIFFERENCE BETWEEN TWO GIVEN DATES

int DATE :: diff(int d1,int m1,int y1,int d2,int m2,int y2)
  {
     int days=0;
     if((y2<y1) || (y2==y1 && m2<m1) || (y2==y1 && m2==m1 && d2<d1))
       return days;
     static int month[]={ 31,29,31,30,31,30,31,31,30,31,30,31 };
     while (d1!=d2 || m1!=m2 || y1!=y2)
      {
	days++;
	d1++;
      if((d1>month[m1-1]) || (y1%4!=0 && m1==2 && d1>28))
	{
	 d1=1;
	 m1++;
	}
      if(m1>12)
	{
	 m1=1;
	 y1++;
	}
     }
     return days ;
  }

// FUNCTION TO DISPLAY
//             -:MAIN MENU
//                   &
//        TO CONTROL ALL THE FUNCTIONS
//            IN THE MAIN MENU.

void MENU :: ma_menu(void)
  {
     char ch;
     while (1)
       {
	clrscr();
	gotoxy(29,6);
	cout<<"B O O K  L I B R A R Y";
	gotoxy(29,7);
	cout<<"~~~~~~~~~~~~~~~~~~~~~~";
	gotoxy(30,10);
	cout<<" 1. INTRODUCTION";
	gotoxy(30,11);
	cout<<" 2. ADD NEW BOOK";
	gotoxy(30,12);
	cout<<" 3. ADD NEW MEMBER";
	gotoxy(30,13);
	cout<<" 4. ISSUE BOOK";
	gotoxy(30,14);
	cout<<" 5. RETURN BOOK";
	gotoxy(30,15);
	cout<<" 6. LIST OF BOOKS";
	gotoxy(30,16);
	cout<<" 7. LIST OF MEMBERS";
	gotoxy(30,17);
	cout<<" 8. EDIT";
	gotoxy(30,18);
	cout<<" ESC. QUIT";
	gotoxy(30,20);
	cout<<"ENTER YOUR CHOICE : ";
	ch=getche();
	if(ch==27)
	  break;
	else
	if(ch=='1')
	  exit;
	else
	if(ch=='2')
	  {
	   WORKING W;
	   W.add_b();
	  }
	else
	if(ch=='3')
	  {
	   WORKING W;
	   W.add_m();
	  }
	else
	if(ch=='4')
	  {
	   WORKING W;
	   W.issue_b();
	  }
	else
	if(ch=='5')
	  {
	   WORKING W;
	   W.return_b();
	  }
	else
	if(ch=='6')
	  {
	   BOOK B;
	   B.table();
	  }
	else
	if(ch=='7')
	  {
	   MEMBER M;
	   M.jot();
	  }
	else
	if(ch=='8')
	  ed_menu();
	else
	if(ch==27)
	  break;
       }
  }

// FUNCTION TO DISPLAY EDIT MENU

void MENU :: ed_menu(void)
{
	char ch ;
	while (1)
	{
		clrscr() ;
		gotoxy(32,9) ;
		cout <<"E D I T  M E N U";
		gotoxy(32,10) ;
		cout <<"~~~~~~~~~~~~~~~~" ;
		gotoxy(34,13) ;
		cout <<"1. BOOKS" ;
		gotoxy(34,14) ;
		cout <<"2. MEMBERS" ;
		gotoxy(34,15) ;
		cout <<"0. EXIT" ;
		gotoxy(31,17) ;
		cout <<"ENTER YOUR CHOICE : " ;
		ch = getche() ;
		if (ch == 27)
			break ;
		else
		if (ch =='1')
			ed_book() ;
		else
		if (ch == '2')
			ed_member() ;
		else
		if (ch == '0')
			break ;
       }
}

// FUNCTION TO DISPLAY EDIT MENU FOR BOOK & CONTROL
// ALL THE FUNCTION IN THE EDIT MENU.

void MENU :: ed_book(void)
{
	char ch ;
	while (1)
	{
		clrscr() ;
		gotoxy(31,9) ;
		cout <<"E D I T  B O O K S";
		gotoxy(31,10) ;
		cout <<"~~~~~~~~~~~~~~~~~~" ;
		gotoxy(34,13) ;
		cout <<"1. MODIFY" ;
		gotoxy(34,14) ;
		cout <<"2. DELETE" ;
		gotoxy(34,15) ;
		cout <<"0. EXIT" ;
		gotoxy(31,17) ;
		cout <<"ENTER YOUR CHOICE : " ;
		ch = getche() ;
		if (ch == 27)
			break ;
		else
		if (ch == '1')
		{
			WORKING W ;
			W.modify_b() ;
		}
		else
		if (ch == '2')
		{
			WORKING W ;
			W.delete_b() ;
		}
		else
		if (ch == '0')
			break ;
	}
}

// FUNCTION TO DISPLAY EDIT MENU FOR MEMBERS & CONTROL
// ALL THE FUNCTION IN THE EDIT MENU.

void MENU :: ed_member(void)
{
	char ch ;
	while (1)
	{
		clrscr() ;
		gotoxy(29,9) ;
		cout <<"E D I T  M E M B E R S";
		gotoxy(29,10) ;
		cout <<"~~~~~~~~~~~~~~~~~~~~~~" ;
		gotoxy(34,13) ;
		cout <<"1. MODIFY" ;
		gotoxy(34,14) ;
		cout <<"2. DELETE" ;
		gotoxy(34,15) ;
		cout <<"0. EXIT" ;
		gotoxy(29,17) ;
		cout <<"ENTER YOUR CHOICE : " ;
		ch = getche() ;
		if (ch == 27)
			break ;
		else
		if (ch == '1')
		{
			WORKING W ;
			W.modify_m() ;
		}
		else
		if (ch == '2')
		{
			WORKING W ;
			W.delete_m() ;
		}
		else
		if (ch == '0')
			break ;
	}
}

// THIS FUNCTION RETURN 0 IF GIVEN BOOK CODE NOT FOUND

int BOOK :: b_found(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int found=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			found = 1 ;
			break ;
		}
	}
	file.close() ;
	return found ;
}

// THIS FUNCTION RETURN 0 IF GIVEN BOOK NAME NOT FOUND

int BOOK :: b_name_found(char t1code[33])
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int found=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (!strcmpi(name,t1code))
		{
			found = 1 ;
			break ;
		}
	}
	file.close() ;
	return found ;
}

// THIS FUNCTION RETURN RECORD NO. FOR THE BOOK CODE

int BOOK :: recordno(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int count=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		count++ ;
		if (bookcode == tcode)
			break ;
	}
	file.close() ;
	return count ;
}

// THIS FUNCTION RETURNS THE AVAILABLE COPIES FOR THE GIVEN
// BOOK CODE.

int BOOK :: available(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int tavail=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			tavail = avail ;
			break ;
		}
	}
	file.close() ;
	return tavail ;
}

// THIS FUNCTION RETURNS THE NO. OF COPIES FOR THE GIVEN
// BOOK CODE.

int BOOK :: no_of_copies(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int tcopies=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			tcopies = copies ;
			break ;
		}
	}
	file.close() ;
	return tcopies ;
}

// THIS FUNCTION RETURNS THE BOOK NAME OF THE GIVEN BOOK
// CODE.

char *BOOK :: b_name(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	char tname[33] ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			strcpy(tname,name) ;
			break ;
		}
	}
	file.close() ;
	return tname ;
}

// THIS FUNCTION RETURNS THE AUTHOR NAME OF THE GIVEN BOOK
// CODE.

char *BOOK :: a_name(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	char tauthor[26] ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			strcpy(tauthor,author) ;
			break ;
		}
	}
	file.close() ;
	return tauthor ;
}

// THIS FUNCTION RETURNS THE BOOK PRICE OF THE GIVEN BOOK
// CODE.

float BOOK :: b_price(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	float tprice=0.0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			tprice = price ;
			break ;
		}
	}
	file.close() ;
	return tprice ;
}

// THIS FUNCTION RETURNS THE BOOK CODE OF THE GIVEN BOOK
// NAME.

int BOOK :: b_codeof(char t1code[33])
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int tcode=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (!strcmpi(name,t1code))
		{
			tcode = bookcode ;
			break ;
		}
	}
	file.close() ;
	return tcode ;
}

// THIS FUNCTION RETURNS THE NO. OF THE RECORDS IN THE BOOK
// FILE.

int BOOK :: reccount(void)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	int count=0 ;
	while (file.read((char *) this, sizeof(BOOK)))
		count++ ;
	file.close() ;
	return count ;
}

// THIS FUNCTION DELETES THE RECORD OF THE GIVEN BOOK CODE.

void BOOK :: delete_rec(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	fstream temp ;
	temp.open("temp.dat", ios::out) ;
	file.seekg(0,ios::beg) ;
	while ( !file.eof() )
	{
		file.read((char *) this, sizeof(BOOK)) ;
		if ( file.eof() )
			break ;
		if ( bookcode != tcode )
			temp.write((char *) this, sizeof(BOOK)) ;
	}
	file.close() ;
	temp.close() ;
	file.open("BOOK.DAT", ios::out) ;
	temp.open("temp.dat", ios::in) ;
	temp.seekg(0,ios::beg) ;
	while(!temp.eof())
	{
		temp.read((char *) this, sizeof(BOOK)) ;
		if ( temp.eof() )
			break ;
		file.write((char *) this, sizeof(BOOK)) ;
	}
	file.close() ;
	temp.close() ;
}

// THIS FUNCTION ADD THE RECORD IN THE BOOK FILE

void BOOK :: add_book(int tcode,char tname[33], char tauthor[26], float tprice, int tcopies, int tavail)
{
	fstream file ;
	file.open("BOOK.DAT", ios::app) ;
	bookcode = tcode ;
	strcpy(name,tname) ;
	strcpy(author,tauthor) ;
	price = tprice ;
	copies = tcopies ;
	avail = tavail ;
	file.write((char *) this, sizeof(BOOK)) ;
	file.close() ;
}

// THIS FUNCTION UPDATE THE RECORD IN THE BOOK FILE FOR THE
// GIVEN BOOK CODE

void BOOK :: update_copies(int tcode, int tcopies, int tavail)
{
	int recno ;
	recno = recordno(tcode) ;
	fstream file ;
	file.open("BOOK.DAT", ios::out | ios::ate) ;
	copies = tcopies ;
	avail = tavail ;
	int location ;
	location = (recno-1) * sizeof(BOOK) ;
	file.seekp(location) ;
	file.write((char *) this, sizeof(BOOK)) ;
	file.close() ;
}

// THIS FUNCTION MODIFY THE RECORD IN THE BOOK FILE FOR THE
// GIVEN BOOK CODE

void BOOK :: change(int tcode, char tname[33], char tauthor[26], float tprice)
{
	int recno ;
	recno = recordno(tcode) ;
	fstream file ;
	file.open("BOOK.DAT", ios::out | ios::ate) ;
	strcpy(name,tname) ;
	strcpy(author,tauthor) ;
	price = tprice ;
	int location ;
	location = (recno-1) * sizeof(BOOK) ;
	file.seekp(location) ;
	file.write((char *) this, sizeof(BOOK)) ;
	file.close() ;
}

// THIS FUNCTION DISPLAY THE RECORD FROM THE BOOK FILE
// FOR THE GIVEN BOOK CODE

void BOOK :: display(int tcode)
{
	fstream file ;
	file.open("BOOK.DAT", ios::in) ;
	file.seekg(0,ios::beg) ;
	while (file.read((char *) this, sizeof(BOOK)))
	{
		if (bookcode == tcode)
		{
			gotoxy(5,5) ;
			cout <<"BOOK CODE   : " <<bookcode ;
			gotoxy(5,7) ;
			cout <<"BOOK NAME   : " <<name ;
			gotoxy(5,8) ;
			cout <<"AUTHOR NAME : " <<author ;
			gotoxy(5,9) ;
			cout <<"PRICE       : Rs." <<price ;
			gotoxy(5,10) ;
			cout <<"COPIES      : " <<price ;
			gotoxy(5,11) ;
			cout <<"AVAILABLE   : " <<avail ;
			break ;
		}
	}