$event->eid)); // Query the variety timeslot table $timeslot_query = db_select('booking_variety_times', 'v'); $timeslot_query->condition('v.booking_eventid', $event->eid, '=') ->fields('v') ->orderBy('v.booking_variety_start'); $result = $timeslot_query->execute(); $form['booking_variety_regn_feedback_wrapper'] = array( '#markup' => '
Please enter your booking number from your lanyard.
', ); $form['booking_nid'] = array( '#type' => 'textfield', '#title' => t('Booking ID'), '#size' => 60, '#required' => TRUE, '#default_value' => !empty($data->booking_nid) ? $data->booking_nid : '', '#ajax' => array( 'event' => 'change', //'wrapper' => 'booking_variety_regn_feedback_wrapper', //'callback' => 'booking_variety_regn_callback', 'wrapper' => 'booking_variety_session_wrapper', 'callback' => 'booking_variety_session_callback', ), ); // TODO: Update the whole form when booking ID is updated $form['variety-sessions'] = array( '#type' => 'fieldset', '#title' => 'Select Variety Sessions', '#prefix' => '
', '#suffix' => '
', ); //for each entry in the variety timeslot table, create a new form select item foreach($result as $timeslot) { //create the form element for this timeslot $form['variety-sessions']['select-variety-' . $timeslot->tid] = array( '#type' => 'select', '#title' => t('Variety Session: ' . $timeslot->booking_variety_time_descrip), '#required' => TRUE, '#default_value' => '', '#options' => _booking_get_variety_timeslot_options($timeslot->tid), ); } $form['submit'] = array( '#type' => 'submit', '#value' => t('Submit'), ); return array ( 'form' => $form, ); } function booking_variety_session_callback($form, &$form_state) { global $event; //$node = $form_state['values']['form_id']; $data = $form_state['input']; watchdog('booking_debug', 'booking_variety_session_callback:
@info
', array('@info' => print_r( $data, true))); $commands = array(); // Query the variety timeslot table $timeslot_query = db_select('booking_variety_times', 'v'); $timeslot_query->condition('v.booking_eventid', $event->eid, '=') ->fields('v') ->orderBy('v.booking_variety_start'); $result = $timeslot_query->execute(); //for each entry in the variety timeslot table, create a new form select item foreach($result as $timeslot) { $fieldname = 'select-variety-' . $timeslot->tid; //re-create the form element for this timeslot $form['variety-sessions'][$fieldname] = array( '#options' => array('--'), '#default_value' => '--', //isset($form_state['values'][$fieldname]) ? $form_state['values'][$fieldname] : '--', ); $commands[] = ajax_command_replace('#' . $fieldname, drupal_render($form['variety-sessions'][$fieldname])); } $form_state['rebuild'] = TRUE; return array('#type' => 'ajax', '#commands' => $commands); } /** * Function to calculate available variety sessions for ajax enabled form booking_variety_regn_form() * @param $timeslot_id - the timeslot ID to query * @return array containing the variety sessions for specified timeslot that still have capacity */ function _booking_get_variety_timeslot_options($timeslot_id) { $session_options = array(); $session_options[] = "--"; $session_query = db_query("SELECT * FROM {booking_variety_options} WHERE booking_variety_timeslot_id = :tid AND booking_variety_status = 1", array(':tid' => $timeslot_id)); // Only add sessions that aren't full to the return result foreach($session_query as $session) { if ($session->booking_variety_regncount < $session->booking_variety_maxsize) { $session_options[$session->vid] = $session->booking_variety_descrip; } } watchdog('booking_debug', "
Variety Session Options:\n@info
", array('@info' => print_r( $session_options, true))); return $session_options; } /** * Callback function to verify if barcode was valid */ function booking_variety_regn_callback($form, &$form_state) { global $event; //$node = $form_state['values']['form_id']; $data = $form_state['input']; watchdog('booking', '
booking_variety_regn_callback validation:\n@info
', array('@info' => print_r( $data, true))); //verify that user-entered data is a number if (! preg_match('/^[0-9]+$/', $data['booking_nid'])) { watchdog('booking_debug', "
booking_variety_regn_callback non-numerical input
"); return '
' . 'You have not entered a valid booking reference number.
'; } // Perform lookup on barcode to make sure it matches someone attending the current event $db_and = db_and(); $db_and->condition('p.booking_eventid', $event->eid, '='); $db_and->condition('p.booking_status', 1, '='); $db_and->condition('p.nid', $data['booking_nid'], '='); $query = db_select('booking_person', 'p'); $query->condition($db_and) ->fields('p'); $person = $query->execute() ->fetchObject(); if ($person) { watchdog('booking_debug', "
booking_variety_regn_callback  found valid attendee
"); return '
' . 'Matched booking reference number.
'; } else { watchdog('booking_debug', "
booking_variety_regn_callback did not find valid attendee
"); return '
' . 'You have not entered a valid booking reference number.
'; } }