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<?php
function da_sql_limit($limit,$point,$config)
{
        switch($point){
                case 0:
                        return '';
                case 1:
                        return '';
                case 2:
                        return "LIMIT $limit";
        }
}
function da_sql_host_connect($server,$config)
{
        if ($config[sql_use_http_credentials] == 'yes'){
                global $HTTP_SERVER_VARS;
                $SQL_user = $HTTP_SERVER_VARS["PHP_AUTH_USER"];
                $SQL_passwd = $HTTP_SERVER_VARS["PHP_AUTH_PW"];
        }
        else{
                $SQL_user = $config[sql_username];
                $SQL_passwd = $config[sql_password];
        }
        if ($config[sql_debug] == 'true')
                print "<b>DEBUG(SQL,PG DRIVER): Connect: User=$SQL_user,Password=$SQL_passwd </b><br>\n";
        return @pg_connect("host=$server port=$config[sql_port]
                        dbname=$config[sql_database] user=$SQL_user
                        password=$SQL_passwd");
}

function da_sql_connect($config)
{
        if ($config[sql_use_http_credentials] == 'yes'){
                global $HTTP_SERVER_VARS;
                $SQL_user = $HTTP_SERVER_VARS["PHP_AUTH_USER"];
                $SQL_passwd = $HTTP_SERVER_VARS["PHP_AUTH_PW"];
        }
        else{
                $SQL_user = $config[sql_username];
                $SQL_passwd = $config[sql_password];
        }
        if ($config[sql_debug] == 'true')
                print "<b>DEBUG(SQL,PG DRIVER): Connect: User=$SQL_user,Password=$SQL_passwd </b><br>\n";
        return @pg_connect("host=$config[sql_server] port=$config[sql_port]
                        dbname=$config[sql_database] user=$SQL_user
                        password=$SQL_passwd");
}

function da_sql_pconnect($config)
{
        if ($config[sql_use_http_credentials] == 'yes'){
                global $HTTP_SERVER_VARS;
                $SQL_user = $HTTP_SERVER_VARS["PHP_AUTH_USER"];
                $SQL_passwd = $HTTP_SERVER_VARS["PHP_AUTH_PW"];
        }
        else{
                $SQL_user = $config[sql_username];
                $SQL_passwd = $config[sql_password];
        }
        if ($config[sql_debug] == 'true')
                print "<b>DEBUG(SQL,PG DRIVER): Connect: User=$SQL_user,Password=$SQL_passwd </b><br>\n";
        return @pg_pconnect("host=$config[sql_server] port=$config[sql_port]
                        dbname=$config[sql_database] user=$SQL_user
                        password=$SQL_passwd");
}

function da_sql_close($link,$config)
{
        @pg_close($link);
}

function da_sql_escape_string($string)
{
        return addslashes($string);
}

function da_sql_query($link,$config,$query)
{
        if ($config[sql_debug] == 'true')
                print "<b>DEBUG(SQL,PG DRIVER): Query: <i>$query</i></b><br>\n";
        return @pg_query($link,$query);
}

function da_sql_num_rows($result,$config)
{
        if ($config[sql_debug] == 'true')
                print "<b>DEBUG(SQL,PG DRIVER): Query Result: Num rows:: " . @pg_numrows($result) . "</b><br>\n";
        return @pg_numrows($result);
}

function da_sql_fetch_array($result,$config)
{
        $row = @pg_fetch_array($result,$config[tmp_pg_array_num][$result]++,PGSQL_ASSOC);
        if ($row && $config[sql_debug] == 'true'){
                print "<b>DEBUG(SQL,PG DRIVER): Query Result: <pre>";
                print_r($row);
                print  "</b></pre>\n";
        }
        if (!$row)
                $config[tmp_pg_array_num][$result] = 0;
        return $row;
}

function da_sql_affected_rows($link,$result,$config)
{
        if ($config[sql_debug] == 'true')
                print "<b>DEBUG(SQL,PG DRIVER): Query Result: Affected rows:: " . @pg_cmdtuples($result) . "</b><br>\n";
        return @pg_cmdtuples($result);
}

function da_sql_list_fields($table,$link,$config)
{
        $res = @pg_query($link,
                "select count(*) from pg_attribute where attnum > '0' and
                attrelid = (select oid from pg_class where relname='$table');");
        if ($res){
                $row = @pg_fetch_row($res,0);
                if ($row){
                        if (!$row[0])
                                return NULL;
                        $fields[num] = $row[0];
                }
        }
        $res = @pg_query($link,
                "select attname from pg_attribute where attnum > '0' and
                attrelid = (select oid from pg_class where relname='$table');");
        if ($res)
                $fields[res]=$res;
        else
                return NULL;

        return $fields;
}

function da_sql_num_fields($fields,$config)
{
        if ($fields)
                return $fields[num];
}

function da_sql_field_name($fields,$num,$config)
{
        if ($fields){
                $row = @pg_fetch_row($fields[res],$num);
                if ($row)
                        return $row[0];
        }
}

function da_sql_error($link,$config)
{
        return pg_errormessage($link);
}
?>