$event->eid, ':sid' => $group_id)) ->fetchObject(); if (! $group) { drupal_set_message("Error: Could not find matching study group ID. Unable to view group membership.", 'error', FALSE); drupal_goto('admin/booking/studygroups'); return ""; } //set options for the CSV file $name = 'bookings-studygroup-' . $group->booking_studygroup_descrip . '-' . format_date(time(), 'custom', 'Y-m-d-His'); $filename = file_directory_temp() . '/' . $name; $csv = ''; $delimiter = ','; $enclosure = '"'; $encloseAll = true; $nullToMysqlNull = true; $delimiter_esc = preg_quote($delimiter, '/'); $enclosure_esc = preg_quote($enclosure, '/'); //get the list of study group session memberships $session_members_query = db_query("SELECT m.*, p.booking_firstname, p.booking_lastname FROM {booking_studygroup_mapping} m inner join {booking_person} p on p.nid = m.booking_node_id WHERE m.booking_studygroup_id = :sid ORDER BY m.booking_session_id, m.booking_studygroup_role DESC", array(':sid' => $group_id)); $session_members = $session_members_query->fetchAll(); //generate the row data foreach ($session_members as $member) { if (! isset($data[$member->booking_session_id])) { $data[$member->booking_session_id] = array(); } // lookup the name and role for this entry in the study group session $text = array($member->booking_firstname, $member->booking_lastname); //add their role if they're leading/helping etc if ($member->booking_studygroup_role > 0) { array_push($text, '(' . _booking_studygroup_role_lookup($member->booking_studygroup_role) . ')'); } //add the spaces and put this element in the right array $data[$member->booking_session_id][] = implode(' ', $text); } //watchdog('booking_debug', "

Study Group CSV Report\n@info

", array('@info' => print_r( $data_array, true))); //calculate the CSV layout $header_array = array_keys($data); $maximums = array(); $column_headings = array(); foreach ($header_array as $column) { $maximums[] = count($data[$column]); //make the column headings a bit more user friendly $column_headings[] = "Session " . $column; } //add the column headings to the CSV $header = implode( $delimiter, $column_headings ); $csv .= $header . "\n"; //generate each row for the CSV for ($i = 0; $i < max($maximums); $i++) { $output = array(); foreach ($header_array as $column) { $field = isset($data[$column][$i]) ? $data[$column][$i] : ''; //enclose $field if necessary if ( $encloseAll || preg_match( "/(?:${delimiter_esc}|${enclosure_esc}|\s)/", $field ) ) { $output[] = $enclosure . str_replace($enclosure, $enclosure . $enclosure, $field) . $enclosure; } else { $output[] = $field; } } //loop through columns $row = implode($delimiter, $output) . "\n"; $csv .= $row; } //output the CSV to the browser drupal_add_http_header("Content-type", "application/octet-stream; charset=utf-8"); drupal_add_http_header("Content-Disposition", "attachment; filename=" . $name . ".csv"); print $csv; exit(0); }