void moth_gui::show_index()
{
stop_show_search_res();
if (!has_index()) {
std::string info("\"This book has no index\"");
moth_dialog dialog;
dialog.info(info);
return;
}
moth_index_gui *gui = new moth_index_gui;
int stat = gui->show(this);
if (stat != SUCCESS)
std::cerr << "index gui failed" << std::endl;
delete gui;
}
void Table::deleterow( streampos pos, string tuple, string col )
{
//cout << col << endl;
ifstream ifs( get_path( ) );
string temp_file;
if( !ifs.is_open() )
{
cerr << "ERROR opening file in Executor::deleterow(). " << endl;
return;
}
string s;
string line;
while ( ifs.tellg() != pos )
{
getline( ifs, line );
temp_file.append( line + string( "\n") );
}
getline( ifs, line );
//temp_file.append( line + string( "\n") );
//cout << line << endl;
// update btree index
if( has_index( col ) )
{
map<string, BTree*>::iterator map_itr = keys.find( col );
BTree * btree = map_itr->second;
//construct tuple
int type;
string entry( get_entry( line, get_col_pos( col ) ) );
if( is_number( entry ) )
btree->remove( Tuple ( atoi( entry.c_str() ), pos ) );
else
btree->remove( Tuple ( entry.c_str(), pos ) );
dump_tree( col, btree->get_first() );
}
line[0] = '@';
temp_file.append( line + string( "\n") );
while ( getline( ifs, line ) )
temp_file.append( line + string( "\n") );
ifs.close();
// rewrite the whole file
ofstream ofs ( get_path( ), std::ofstream::out | std::ofstream::trunc );
if( !ofs.is_open() )
{
cerr << "ERROR opening out file in Executor::deleterow(). " << endl;
return;
}
ofs << temp_file;
ofs.close();
}
Index index() {
CGAL_assertion(has_index());
return index_.get();
}
int index() const { assert(has_index(), "must have index");; return _value.i; }
