campo-sirio/lv/lv0400.cpp

#include <msksheet.h>
#include <relapp.h>
#include <recset.h>

#include "lv0400.h"

class TContratti_app: public TRelation_application
{
	TMask* _amsk;
	TMask* _bmsk;
	TRelation* _rel;
  bool _unicont;

private:
  void save_rows(const TMask& m);
  void build_query(const TMask& m,TString& query) const;
  int find_art(TSheet_field& s,const TString& art) const;

protected:
	virtual bool changing_mask (int mode) { return true;}
	virtual TMask* get_mask (int mode) {return mode==MODE_QUERY?_amsk:_bmsk; }
	virtual TRelation* get_relation() const {return _rel;}

  virtual bool user_create();
  virtual bool user_destroy();
  virtual void on_config_change();
  virtual bool get_next_key(TToken_string& key);
  virtual int read(TMask& m);
  virtual int write(const TMask& m);
  virtual int rewrite(const TMask& m);
  virtual bool remove();

};

bool TContratti_app:: user_create() 
{
  _rel=new TRelation (LF_LVCONDV);
  _amsk= new TMask ("lv0400a");
  _bmsk= new TMask ("lv0400b");
  return true;
}

bool TContratti_app:: user_destroy() 
{
   delete _bmsk;
   delete _amsk;
   delete _rel;
   return true;
}

void TContratti_app:: on_config_change()
{
  TConfig ini(CONFIG_DITTA);
  _unicont=ini.get_bool("UniCont");
}

bool TContratti_app:: get_next_key(TToken_string& key)
{ 
  const long cliente=_amsk->get_long(F_CODCF);
  if (cliente<=0) return false;
  key.add(F_CODCF);
  key.add(cliente);
  key.add(F_CODCONT);

  long codcont=0;
  if (_unicont)
  {
    TISAM_recordset recset ("USE LVCONDV");
    for (bool ok=recset.move_first(); ok; ok=recset.move_next())
    {
      const long codice=recset.get("CODCONT").as_int();
      if (codice>codcont)
        codcont=codice;
    }
  }
  else
  {
   TString query; 
   query<<"USE LVCONDV \n"
        <<"FROM CODCF=#CLIENTE\n"
        <<"TO CODCF=#CLIENTE\n";
   TISAM_recordset recset (query);
   recset.set_var("#CLIENTE",cliente);
   if (recset.move_last())
     codcont=recset.get("CODCONT").as_int();
     
  }
  codcont++;
  key.add(codcont);

  return true; 
}

void TContratti_app:: build_query(const TMask& m,TString& query) const
{
  query="";
  query << "USE LVRCONDV\n"
        << "FROM CODCF="<<m.get(F_CODCF)<<" CODCONT="<<m.get(F_CODCONT)<<"\n"
        << "TO CODCF="<<m.get(F_CODCF)<<" CODCONT="<<m.get(F_CODCONT);
 
}

int TContratti_app:: read(TMask& m) 
{
  int err=TRelation_application::read(m);
  if(err==NOERR)
  {
    TString query; 
    build_query(m,query);
    TISAM_recordset righeset(query);
    const TRectype& rec=righeset.cursor()->curr();

    TSheet_field& righe=m.sfield(F_RIGHE);
    TMask& msk=righe.sheet_mask();
    righe.destroy();

    for (bool ok=righeset.move_first(); ok; ok=righeset.move_next())
    {
      TToken_string& row=righe.row(-1);
      FOR_EACH_MASK_FIELD(msk,i,f)
      {
        const TFieldref*fr=f->field();
        if (fr!= NULL)
          row.add(fr->read(rec),righe.cid2index(f->dlg()));  
      }
      righe.check_row(righe.items()-1,3);
    }
    righe.force_update();
  }
  return err;
}

int TContratti_app::find_art(TSheet_field& s,const TString& art) const
{
  int r=-1;
  for (r=s.items()-1;r>=0;r--)
  {
    const char* codart= s.row(r).get(0);
    if (art==codart)
      break;
  }
  return r;

}
void TContratti_app::save_rows(const TMask& m)
{
  TString query; 
  TSheet_field& righe=m.sfield(F_RIGHE);
  build_query(m,query);
  TISAM_recordset righeset(query);
  TLocalisamfile& file=righeset.cursor()->file();
  for (bool ok=righeset.move_first(); ok; ok=righeset.move_next())
  {
    const TString& art=righeset.get("CODART").as_string();
    if (find_art(righe,art)<0)
       file.remove();
  }

  TMask& msk=righe.sheet_mask();
  FOR_EACH_SHEET_ROW(righe,r,row)
  {
    file.zero();
    file.put("CODCF",m.get(F_CODCF));
    file.put("CODCONT",m.get(F_CODCONT));
    FOR_EACH_MASK_FIELD(msk,i,f)
    {
      const TFieldref*fr=f->field();
      if (fr!= NULL)
      {
        const int pos=righe.cid2index(f->dlg());
        fr->write(row->get(pos),file.curr());
      }
    }
    file.rewrite_write();
  }

}

int TContratti_app::write(const TMask& m)
{
  int err=TRelation_application::write(m);
  if(err==NOERR) save_rows(m);
  return err;
}
int TContratti_app::rewrite(const TMask& m)
{
  int err=TRelation_application::rewrite(m);
  if(err==NOERR) save_rows(m);
  return err;
}
bool TContratti_app::remove()
{
  bool ok=TRelation_application::remove();
  if(ok)
  {
    TString query; 
    build_query(*_bmsk,query);
    TISAM_recordset righeset(query);
    TLocalisamfile& file=righeset.cursor()->file();
    for (bool ok=righeset.move_first(); ok; ok=righeset.move_next())
    {
      file.remove();
    }

  }
  return ok;
}

int lv0400(int argc, char* argv[])
{
  TContratti_app app;
  app.run (argc,argv,TR("Gestione contratti"));
  return 0;
}