#ifndef __RELATION_H
#include <relation.h>
#endif

class TMovimentoPN : public TRelation
{
// class TMovimentoPN : public TRelation
// @END

// @DPRIV
TArray	_cg, _iva;
int			_oldcg, _oldiva;
real 		_balance;
// @END

protected:
// @FPROT
	int write_rec(bool re, const TRectype&r, TLocalisamfile* f);
	int cancella(TLocalisamfile* f, int da, int a);
	int registra(bool re, bool force);
	int	read_mov_rows();
// @END

 public:
// @FPUB
	virtual int next(TReclock lockop = _nolock) { return (file()->next(lockop) || read_mov_rows()); }
	virtual int prev(TReclock lockop = _nolock) { return (file()->prev(lockop) || read_mov_rows()); }
	virtual int first(TReclock lockop = _nolock) { return (file()->first(lockop) || read_mov_rows()); }
	virtual int last(TReclock lockop = _nolock) { return (file()->last(lockop) || read_mov_rows()); }
	virtual int skip(TRecnotype nrec, TReclock lockop = _nolock) { return (file()->skip(nrec, lockop) || read_mov_rows()); }
	virtual int read(TIsamop op = _isgteq, TReclock lockop = _nolock, TDate& atdate = botime);
	virtual int write  (bool force = TRUE, TDate& atdate = botime);
	virtual int rewrite(bool force = TRUE, TDate& atdate = botime);
	virtual int remove (TDate& atdate = botime);

	TRectype& cg(int i);
	TRectype& iva(int i);
	int cg_items() const { return _cg.items(); }
	int iva_items() const { return _iva.items(); }
	void destroy_rows();

	TMovimentoPN();
	virtual ~TMovimentoPN() {}
};