C++ (Cpp) RDSqlQuery::isNull Exemples

Exemple #1

Fichier : rdconf.cpp Projet : WMTH/rivendell

QVariant RDGetSqlValue(const QString &table,
		       const QString &name1,const QString &test1,
		       const QString &name2,const QString &test2,
                       const QString &name3,const QString &test3,
		       const QString &param,QSqlDatabase *db,bool *valid)
{
  RDSqlQuery *q;
  QString sql;
  QVariant v;

  sql="select `"+param+"` from `"+table+"` where "+
    "(`"+name1+"`=\""+RDEscapeString(test1)+"\")&&"+
    "(`"+name2+"`=\""+RDEscapeString(test1)+"\")&&"+
    "(`"+name3+"`=\""+RDEscapeString(test1)+"\")";
  q=new RDSqlQuery(sql,db);
  if(q->isActive()) {
    q->first();
    v=q->value(0);
    if(valid!=NULL) {
      *valid=!q->isNull(0);
    }
    delete q;
    return v;
  }
  delete q;
  return QVariant();
}

Exemple #2

Fichier : rdconf.cpp Projet : WMTH/rivendell

QVariant RDGetSqlValue(const QString &table,const QString &name,unsigned test,
		       const QString &param,QSqlDatabase *db,bool *valid)
{
  RDSqlQuery *q;
  QString sql;
  QVariant v;

  sql="select `"+param+"` from `"+table+"` where `"+name+"`="+
    QString().sprintf("%u",test);
  q=new RDSqlQuery(sql,db);
  if(q->first()) {
    v=q->value(0);
    if(valid!=NULL) {
      *valid=!q->isNull(0);
    }
    delete q;
    return v;
  }
  delete q;
  return QVariant();
}

Exemple #3

Fichier : rdconf.cpp Projet : WMTH/rivendell

bool RDIsSqlNull(const QString &table,const QString &name,unsigned test,
		 const QString &param,QSqlDatabase *db)
{
  RDSqlQuery *q;
  QString sql;

  sql="select `"+param+"` from `"+table+"` where `"+name+"`="+
    QString().sprintf("%d",test);
  q=new RDSqlQuery(sql,db);
  if(q->isActive()) {
    q->first();
    if(q->isNull(0)) {
      delete q;
      return true;
    }
    else {
      delete q;
      return false;
    }
  }
  delete q;
  return true;
}

Exemple #4

Fichier : rdconf.cpp Projet : WMTH/rivendell

bool RDIsSqlNull(const QString &table,const QString &name,const QString &test,
		 const QString &param,QSqlDatabase *db)
{
  RDSqlQuery *q;
  QString sql;

  sql="select `"+param+"` from `"+table+"` where `"+name+"`="+
    "\""+RDEscapeString(test)+"\"";
  q=new RDSqlQuery(sql,db);
  if(q->isActive()) {
    q->first();
    if(q->isNull(0)) {
      delete q;
      return true;
    }
    else {
      delete q;
      return false;
    }
  }
  delete q;
  return true;
}