<?php

/**
 * Travel form for attendee
 */
function booking_travel_page()
{
  global $event;
  $output = "";
  $return_array = array();
  
  //verify that arg(1) is a uuid
  if (!preg_match('/^[0-9A-Fa-f\-]+$/', arg(1))) {
    //parameter from url is not what we were expecting
    drupal_set_message("Error: Invalid session ID supplied. Please use the contact us form to let us know.", 'error', FALSE);
    drupal_goto('content/travel');
    return "";
  }
  
  //verify that this feature is enabled
  if (variable_get('booking_enable_travelform', 0) == 0) {
    drupal_set_message("Error: The travel form is not enabled. Please use the contact us form to inform the site owner of this error.", 'error', FALSE);
    drupal_goto('content/travel');
    return "";
  }
  
  //work out the node id from the session id
  $query = db_select('booking_person', 'p');
  $query->condition('p.booking_tempid', arg(1), '=')
    ->fields('p', array('nid'));
  $person = $query->execute()->fetchObject();
  
  //if we found a matching person
  if ($person) {
    //load this person's data
    $node = node_load($person->nid);
    $tokens = booking_define_personspecific_tokens($node);
    
    //watchdog('booking', 'Checking for existing travel form for: @info', array('@info' => var_export($person, TRUE)));
    
    //check for an existing travel form
    if (!empty($node->tid)) {
      $inputtext = variable_get('booking_travelform_completed_page');
      //$output = token_replace(variable_get('booking_travelform_completed_page'), $tokens);
      $return_array[] = array(
        'paragraph' => array(
          '#type' => 'markup',
          '#markup' => token_replace($inputtext['value'], $tokens),
        )
      );
    }
    //they haven't submitted a travel form yet	
    else {
      //Output different text if this is for a married couple
      if ((variable_get('booking_enable_combined_pricing', 0) == 1) && $node->booking_partner_id > 0) {
        $inputtext = variable_get('booking_travelform_married_page');
        //$output = token_replace(variable_get('booking_travelform_married_page'), $tokens);
      } else {
        $inputtext = variable_get('booking_travelform_page');
       //$output = token_replace(variable_get('booking_travelform_page'), $tokens);
      }
      //text before form
      $return_array[] = array(
        'paragraph' => array(
          '#type' => 'markup',
          '#markup' => token_replace($inputtext['value'], $tokens),
        )
      );
      //actual form
      $return_array[] = array(
        'form' => drupal_get_form('travel_form', true, $node, $tokens)
      );
      //text after form
      /*
      $afterform_text = variable_get('booking_travelform_page_post_text');
      $return_array[] = array(
        'paragraph' => array(
          '#type' => 'markup',
          '#markup' => token_replace($afterform_text['value'], $tokens),
        )
      ); 
      */     
    }
    
    return $return_array;
    //there was no person matching this session id
  } else {
    drupal_set_message("Unable to find matching session ID " . arg(1), 'error', FALSE);
    return "";
  }
  
}

function travel_form($node, &$form_state, $inserting = FALSE, $node = NULL, $tokens = NULL)
{
  global $event;
  date_default_timezone_set(date_default_timezone(FALSE));
  
  $booking_dietary = '';
  $booking_medical_conditions = '';
  $booking_bf_gf_nid = '';
  $booking_roommate = '';
  
  $transport_type_options = array(
    'Driving' => 'Driving',
    //'Train' => 'Train',
    'Flying' => 'Flying',
  );
  
  //there's already info in $node so use that
  if (!empty($node)) {
    $data = $node;
  }
  //otherwise rely on the form state from the previous submission
  else {
    $data = $form_state['input'];
  }
  
  //get info about this person from the relevant node id
  $person = db_query("SELECT booking_dietary, booking_medical_conditions, booking_bf_gf_nid, booking_partner_id, booking_room_mate1 " . 
                    "FROM {booking_person} " . "WHERE nid = :nid ", 
                    array(':nid' => $node->nid <> NULL ? $node->nid : $data->booking_person_nid))->fetchObject();
  
  if ($person) {
    $booking_dietary = $person->booking_dietary;
    $booking_medical_conditions = $person->booking_medical_conditions;
    //an empty value is zero in this case
    $booking_bf_gf_nid = $person->booking_bf_gf_nid == 0 ? '' : $person->booking_bf_gf_nid;
    $booking_roommate = $person->booking_room_mate1;
  }
  
  //form starts here
  //store the node id
  $form['personid'] = array(
    '#type' => 'hidden',
    '#value' => $node->nid,
  );
  
  $form['travel'] = array(
    '#type' => 'fieldset',
    '#title' => 'Travel details',
  );
  $form['travel']['booking_transport_type'] = array(
    '#type' => 'radios',
    '#title' => t('Transport Type'),
    '#options' => $transport_type_options,
    '#default_value' => !empty($data->booking_transport_type) ? $data->booking_transport_type : NULL,
    '#required' => TRUE
  );
  
  /*
  $form['travel']['booking_transport_to_morriset_reqd'] = array(
  '#type' => 'radios',
  '#title' => t('Do you require transport from Study Week to Morriset Station?'),
  '#options' => array('Yes' => 'Yes', 'No' => 'No - I have arranged my own Transport'),
  '#default_value' => (! isset($data->booking_transport_to_morriset_reqd)) ? '' : ($data->booking_transport_to_morriset_reqd == 1 ? 'Yes' : 'No'),  
  '#states' => array(
  'visible' => array(
  ':input[name="booking_transport_type"]' => array('value' => 'Train'),
  ),	
  ),		
  );
  */
  //Flying Options
  $form['travel']['booking_flightnum_inbound'] = array(
    '#type' => 'textfield',
    '#title' => t('Flight Number arriving into Sydney'),
    '#maxlength' => 50,
    '#default_value' => empty($data->booking_flightnum_inbound) ? '' : $data->booking_flightnum_inbound,
    '#states' => array(
      'visible' => array(
        ':input[name="booking_transport_type"]' => array(
          'value' => 'Flying'
        )
      )
    )
  );
  $form['travel']['booking_flight_datetime_inbound'] = array(
    '#type' => 'date_select',
    '#title' => t('Date and Time of flight arrival into Sydney Airport'),
    '#description' => t('Note: 24 hour time - 12:00 is midday'),
    '#default_value' => empty($data->booking_flight_datetime_inbound) ? '' : date("Y-m-d H:i:s", $data->booking_flight_datetime_inbound),
    '#date_format' => 'd/m/Y H:i',
    '#date_year_range' => '0:0',
    '#states' => array(
      'visible' => array(
        ':input[name="booking_transport_type"]' => array(
          'value' => 'Flying'
        )
      )
    )
  );
  $form['travel']['booking_flightnum_outbound'] = array(
    '#type' => 'textfield',
    '#title' => t('Flight Number departing from Sydney'),
    '#maxlength' => 50,
    '#default_value' => empty($data->booking_flightnum_outbound) ? '' : $data->booking_flightnum_outbound,
    '#states' => array(
      'visible' => array(
        ':input[name="booking_transport_type"]' => array(
          'value' => 'Flying'
        )
      )
    )
  );
  $form['travel']['booking_flight_datetime_outbound'] = array(
    '#type' => 'date_select',
    '#title' => t('Date and Time of flight departure from Sydney Airport'),
    '#description' => t('Note: 24 hour time - 12:00 is midday'),
    '#default_value' => empty($data->booking_flight_datetime_outbound) ? '' : date("Y-m-d H:i:s", $data->booking_flight_datetime_outbound),
    '#date_format' => 'd/m/Y H:i',
    '#date_year_range' => '0:0',
    '#states' => array(
      'visible' => array(
        ':input[name="booking_transport_type"]' => array(
          'value' => 'Flying'
        )
      )
    )
  );
  
  $form['travel']['booking_transport_from_morriset_reqd'] = array(
    '#type' => 'radios',
    '#title' => t('Will you be catching the train to Study Week?'),
    '#options' => array(
      'Yes' => 'Yes I will be catching the train',
      'No' => 'No - I have arranged my own Transport'
    ),
    '#default_value' => (!isset($data->booking_transport_from_morriset_reqd)) ? 'No' : ($data->booking_transport_from_morriset_reqd == 1 ? 'Yes' : 'No'),
    '#states' => array(
      'visible' => array(
        ':input[name="booking_transport_type"]' => array(
          'value' => 'Flying'
        )
      )
    )
  );
  
  $form['accommodation'] = array(
    '#type' => 'fieldset',
    '#title' => 'Accommodation Details'
  );
  $form['accommodation']['booking_accom_before_reqd'] = array(
    '#type' => 'radios',
    '#title' => t('Do you need us to organise accommodation before Study Week?'),
    '#options' => array(
      'Yes' => 'Yes',
      'No' => "No - I have arranged my own accommodation or I'm not arriving early"
    ),
    '#default_value' => (!isset($data->booking_accom_before_reqd)) ? 'No' : ($data->booking_accom_before_reqd == 1 ? 'Yes' : 'No')
  );
  /*
  $form['accommodation']['booking_accom_before_staying_with'] = array(
  '#type' => 'textfield',
  '#title' => t('Who are you staying with in Sydney before Study Week?'),
  '#maxlength' => 100,
  '#default_value' => empty($data->booking_accom_before_staying_with) ? '' : $data->booking_accom_before_staying_with,
  '#states' => array(
  'visible' => array(
  ':input[name="booking_accom_before_reqd"]' => array('value' => 'No'),
  ),
  ),		 
  );
  */
  $form['accommodation']['booking_accom_after_reqd'] = array(
    '#type' => 'radios',
    '#title' => t('Do you need us to organise accommodation after Study Week?'),
    '#options' => array(
      'Yes' => 'Yes',
      'No' => "No - I have arranged my own accommodation or I'm not staying in Sydney afterwards"
    ),
    '#default_value' => (!isset($data->booking_accom_after_reqd)) ? 'No' : ($data->booking_accom_after_reqd == 1 ? 'Yes' : 'No')
  );
  /*
  $form['accommodation']['booking_accom_after_staying_with'] = array(
  '#type' => 'textfield',
  '#title' => t('Who are you staying with in Sydney after Study Week?'),
  '#maxlength' => 100,
  '#default_value' => empty($data->booking_accom_after_staying_with) ? '' : $data->booking_accom_after_staying_with,
  '#states' => array(
  'visible' => array(
  ':input[name="booking_accom_after_reqd"]' => array('value' => 'No'),
  ),
  ),		 
  );
  */
  $form['requirements'] = array(
    '#type' => 'fieldset',
    '#title' => 'Special Requirements'
  );
  //only show the dietary field if we're allowed to
  if (variable_get('booking_enable_dietary', 0) == 1 || $inserting == FALSE) {
    $form['requirements']['booking_dietary'] = array(
      '#type' => 'textfield',
      '#title' => t('Special dietary requirements?'),
      '#maxlength' => 180,
      '#default_value' => !empty($data->booking_dietary) ? $data->booking_dietary : $booking_dietary
    );
  }
  //display the medical conditions question if it is enabled
  if (variable_get('booking_enable_medcond', 0) == 1 || $inserting == FALSE) {
    $form['requirements']['booking_medical_conditions'] = array(
      '#type' => 'textfield',
      '#title' => t('Please describe any medical condition we need to know about.'),
      '#description' => t('This field contains information you entered when you registered.'),
      '#maxlength' => 180,
      '#required' => FALSE,
      '#default_value' => !empty($data->booking_medical_conditions) ? $data->booking_medical_conditions : $booking_medical_conditions
    );
  }
  //only show the room mate field if we're allowed to	
  if (variable_get('booking_enable_roommate', 0) == 1 || $inserting == FALSE) {
    //married people won't need to select a room mate
    if ($person->booking_partner_id == 0) {
      $form['requirements']['booking_room_mate1'] = array(
        '#type' => 'textfield',
        '#title' => t('I would like to share a room with'),
        '#description' => t('This field contains information you entered when you registered. Update if necessary.'),
        '#maxlength' => 200,
        '#required' => FALSE,
        '#default_value' => !empty($data->booking_room_mate1) ? $data->booking_room_mate1 : $booking_roommate
      );
    }
  }
  //only show this field if this person isn't married
  if (((variable_get('booking_enable_combined_pricing', 0) == 1) && $person->booking_partner_id == 0) || (variable_get('booking_enable_combined_pricing', 0) == 0)) {
    $form['requirements']['booking_bf_gf_nid'] = array(
      '#type' => 'textfield',
      '#title' => t('Registration ID of Boyfriend/Girlfriend to be placed in the same discussion groups as you.'),
      '#description' => t('If you\'re not sure what this number is, ask your Significant Other to look at the confirmation email they received when they registered.'),
      '#maxlength' => 15,
      '#size' => 4,
      '#required' => FALSE,
      '#default_value' => !empty($data->booking_bf_gf_nid) ? $data->booking_bf_gf_nid : $booking_bf_gf_nid
    );
  }
  
  if ($inserting == TRUE) {
    //add some html just before the submit button
    $afterform_text = variable_get('booking_travelform_page_post_text');
    $form['post-text'] = array(
      '#type' => 'container',
      '#children' => token_replace($afterform_text['value'], $tokens),
    );    
    //include the submit button
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Submit')
    );
  }
  return $form;
}

function travel_form_validate($form, &$form_state)
{
  watchdog('booking_debug', "<pre>Travel form:\n@info</pre>", array('@info' => print_r( $form_state, true)));
  
  //verify boyfriend/girlfriend id is in the correct format
  if (isset($form_state['values']['booking_bf_gf_nid']) && $form_state['values']['booking_bf_gf_nid'] != '') {
    //make sure this is a node id not something else
    if (!is_numeric($form_state['values']['booking_bf_gf_nid'])) {
      form_set_error('booking_bf_gf_nid', t('You have entered an invalid registration id for your boyfriend/girlfriend. ' . 'Please ensure you are using only the registration reference number your boyfriend/girlfriend received via email. For example, your registration ID is !id. ' . 'If you believe this to be incorrect, please !contact using the details provided.', array(
        '!id' => $form_state['values']['personid'],
        '!contact' => l('contact us', 'contact')
      )));
      watchdog('booking', "<pre>Travel form non-numeric bf/gf\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    }
    //don't allow them to specify their own node id
    elseif ($form_state['values']['personid'] == $form_state['values']['booking_bf_gf_nid']) {
      form_set_error('booking_bf_gf_nid', t('You have entered your own registration id.' . 'Please ensure you enter only the registration reference number your boyfriend/girlfriend received via email when registering, not your own registration id.'));
      watchdog('booking', "<pre>Travel form bf/gf same as person id\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    } else {
      //check that the partner exists
      $partner = db_query("SELECT person.nid " . "FROM     {booking_person} person " . "WHERE nid = :nid", array(
        ':nid' => $form_state['values']['booking_bf_gf_nid']
      ))->fetchObject();
      if (!$partner) {
        form_set_error('booking_bf_gf_nid', t('We cannot find a matching registration id for your boyfriend/girlfriend. ' . 'Please ensure you are using only the number that relates to their registration. For example, your registration ID is !id. ' . 'If you believe this to be incorrect, please !contact using the details provided.', array(
          '!id' => $form_state['values']['personid'],
          '!contact' => l('contact us', 'contact')
        )));
        watchdog('booking', "<pre>Travel form unknown bf/gf id\n@info</pre>", array(
          '@info' => print_r($form_state['values'], true)
        ));
      } //end missing partner handling		
    } //end  bf/gf validation
  } //end bf/gf checking
  
  //check to make sure flight info is entered if it is selected
  if (isset($form_state['values']['booking_transport_type']) && $form_state['values']['booking_transport_type'] == 'Flying') {
    
    if ((!isset($form_state['values']['booking_flightnum_inbound'])) || ($form_state['values']['booking_flightnum_inbound'] == '')) {
      form_set_error('booking_flightnum_inbound', t('Please enter the flight number associated with your arrival flight.'));
      watchdog('booking', "<pre>Travel form missing flight number for arrival flight\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    }
    
    if ($form_state['values']['booking_flight_datetime_inbound']['day'] == '' || $form_state['values']['booking_flight_datetime_inbound']['month'] == '' || $form_state['values']['booking_flight_datetime_inbound']['year'] == '' || $form_state['values']['booking_flight_datetime_inbound']['hour'] == '' || $form_state['values']['booking_flight_datetime_inbound']['minute'] == '') {
      form_set_error('booking_flight_datetime_inbound', t('Please enter the arrival time associated with your flight.'));
      watchdog('booking', "<pre>Travel form missing flight arrival time\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    }
    
    if ((!isset($form_state['values']['booking_flightnum_outbound'])) || ($form_state['values']['booking_flightnum_outbound'] == '')) {
      form_set_error('booking_flightnum_outbound', t('Please enter the flight number associated with your departing flight.'));
      watchdog('booking', "<pre>Travel form missing flight number for departing flight\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    }
    
    if ($form_state['values']['booking_flight_datetime_outbound']['day'] == '' || $form_state['values']['booking_flight_datetime_outbound']['month'] == '' || $form_state['values']['booking_flight_datetime_outbound']['year'] == '' || $form_state['values']['booking_flight_datetime_outbound']['hour'] == '' || $form_state['values']['booking_flight_datetime_outbound']['minute'] == '') {
      form_set_error('booking_flight_datetime_outbound', t('Please enter the departure time associated with your flight.'));
      watchdog('booking', "<pre>Travel form missing flight departure time\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    }
    
    //check for arrival time after departure time
    if (_datetime_to_ts($form_state['values']['booking_flight_datetime_inbound']) > _datetime_to_ts($form_state['values']['booking_flight_datetime_outbound'])) {
      form_set_error('booking_flight_datetime_inbound', t('You have entered an arrival flight time that is after your departure flight time.'));
      watchdog('booking', "<pre>Travel form seems to have arrival flight after departure flight\n@info</pre>", array(
        '@info' => print_r($form_state['values'], true)
      ));
    }
    
  } //end check for flying
  
}

function travel_form_submit($form, &$form_state)
{
  global $event;
  $values = $form_state['input'];
  
  //watchdog('booking', 'Submitting travel form: @info', array('@info' => var_export($values, TRUE)));
  
  //check that $values['personid'] is a number
  if (!preg_match('/^[0-9]+$/', $values['personid'])) {
    //parameter from url is not what we were expecting
    drupal_set_message("Error: Invalid form data supplied. Please use the contact us form to let us know.", 'error', FALSE);
    return "";
  }
  
  //fetch details about the person
  $person = db_query("SELECT nid as personid, booking_tempid, booking_firstname, booking_lastname, booking_partner_id, booking_dietary, booking_room_mate1, booking_medical_conditions " . "FROM     {booking_person} " . "WHERE nid = :nid ", array(
    ':nid' => $values['personid']
  ))->fetchObject();
  
  //create the new node structure
  $node = new stdClass();
  $node = node_type_set_defaults();
  $node->title = t('!event travel form: !name', array(
    '!event' => $event->booking_eventname,
    '!name' => $person->booking_firstname . ' ' . $person->booking_lastname
  ));
  $node->type = 'travel';
  $node->status = 1; // Published?
  $node->promote = 0; // Display on front page?
  $node->language = LANGUAGE_NONE;
  $node->created = time();
  $node->changed = time();
  //populate the data
  $node->booking_person_nid = $values['personid'];
  $node->booking_transport_type = $values['booking_transport_type'];
  $node->booking_transport_from_morriset_reqd = $values['booking_transport_from_morriset_reqd'] == 'Yes' ? 1 : 0;
  //$node->booking_transport_to_morriset_reqd = $values['booking_transport_to_morriset_reqd'] == 'Yes' ? 1 : 0;
  $node->booking_flightnum_inbound = $values['booking_flightnum_inbound'];
  //todo: ternary operator to handle 0 as the date time
  $node->booking_flight_datetime_inbound = _datetime_array_to_ts($values['booking_flight_datetime_inbound']);
  $node->booking_flightnum_outbound = $values['booking_flightnum_outbound'];
  $node->booking_flight_datetime_outbound = _datetime_array_to_ts($values['booking_flight_datetime_outbound']);
  $node->booking_accom_before_reqd = $values['booking_accom_before_reqd'] == 'Yes' ? 1 : 0;
  //$node->booking_accom_before_staying_with = $values['booking_accom_before_staying_with'];
  $node->booking_accom_after_reqd = $values['booking_accom_after_reqd'] == 'Yes' ? 1 : 0;
  //$node->booking_accom_after_staying_with = $values['booking_accom_after_staying_with'];
  
  //booking_person related fields
  $node->booking_bf_gf_nid = empty($values['booking_bf_gf_nid']) ? 0 : $values['booking_bf_gf_nid'];
  
  //optional fields
  $node->booking_medical_conditions = (variable_get('booking_enable_medcond', 0) == 1 ? $values['booking_medical_conditions'] : $person->booking_medical_conditions;  
  $node->booking_dietary = variable_get('booking_enable_dietary', 0) == 1 ? $values['booking_dietary'] : $person->booking_dietary;
  //room mate field might be enabled but not displayed for a married couple so calculate whether the field is empty or not first
  $room_mate = empty($values['booking_room_mate1']) ? $person->booking_room_mate1 : $values['booking_room_mate1'];
  $node->booking_room_mate1 = variable_get('booking_enable_roommate', 0) == 1 ? $room_mate : $person->booking_room_mate1;
  
  //watchdog('booking', "<pre>Travel data to save:\n@info</pre>", array('@info' => print_r( $node, true)));	
  
  //store the node
  $foo = node_submit($node);
  $blah = node_save($foo);
  
  //send a confirmation email
  _booking_travelform_confirmation_email($values['personid']);
  
  drupal_set_message("Thanks for submitting your travel details. You should receive a confirmation email shortly.", $type = 'status');
  $form_state['redirect'] = array('content/travel');
}

function travel_load($nodes)
{
  //watchdog('booking', 'Loading node with params: @info', array('@info' => var_export($nodes, TRUE)));	
  
  // note that $nodes is an array of object references, keyed by nid
  // grab the data from our module tables
  
  $query = db_select('booking_travel', 't');
  $query->distinct();
  $query->join('booking_person', 'p', 'p.nid = t.booking_person_nid');
  $query->fields('t');
  $query->fields('p', array(
    'booking_dietary',
    'booking_medical_conditions',
    'booking_bf_gf_nid',
    'booking_room_mate1'
  ));
  $query->condition('tid', array_keys($nodes), 'IN');
  $result = $query->execute();
  
  //add that data to the array of node references
  foreach ($result as $record) {
    //watchdog('booking', 'This node looks like: @info', array('@info' => var_export($record, TRUE)));
    // run through each result row and add in the needed attributes	
    foreach ($record as $key => $value) {
      $nodes[$record->tid]->$key = $value;
    }
  }
  
  //watchdog('booking', 'Final loaded travel form node: @info', array('@info' => var_export($nodes, TRUE)));			
  // no return necessary since $nodes array members reference objects global to this function
}

function travel_insert($node)
{
  //watchdog('booking', 'Inserting travel form: @info', array('@info' => var_export($node, TRUE)));
  
  db_insert('booking_travel')->fields(array(
    'tid' => $node->nid,
    'booking_person_nid' => $node->booking_person_nid,
    'booking_transport_type' => $node->booking_transport_type,
    'booking_transport_from_morriset_reqd' => $node->booking_transport_from_morriset_reqd,
    //'booking_transport_to_morriset_reqd' => $node->booking_transport_to_morriset_reqd,
    'booking_flightnum_inbound' => $node->booking_flightnum_inbound,
    'booking_flight_datetime_inbound' => $node->booking_flight_datetime_inbound,
    'booking_flightnum_outbound' => $node->booking_flightnum_outbound,
    'booking_flight_datetime_outbound' => $node->booking_flight_datetime_outbound,
    'booking_accom_before_reqd' => $node->booking_accom_before_reqd,
    //'booking_accom_before_staying_with' => $node->booking_accom_before_staying_with,
    'booking_accom_after_reqd' => $node->booking_accom_after_reqd
    //'booking_accom_after_staying_with' => $node->booking_accom_after_staying_with,
  ))->execute();
  
  //update the booking_person fields
  db_update('booking_person')->fields(array(
    'booking_dietary' => $node->booking_dietary,
    'booking_medical_conditions' => $node->booking_medical_conditions,
    'booking_bf_gf_nid' => $node->booking_bf_gf_nid,
    'booking_room_mate1' => $node->booking_room_mate1
  ))->condition('nid', $node->booking_person_nid)->execute();
  
  //set the boyfriend/girlfriend to point to this person
  if ($node->booking_bf_gf_nid <> 0) {
    db_update('booking_person')->fields(array(
      'booking_bf_gf_nid' => $node->booking_person_nid
    ))->condition('nid', $node->booking_bf_gf_nid)->execute();
  }
}

function travel_update($node)
{
  watchdog('booking', 'Updating travel form booking_travel table: @info', array(
    '@info' => var_export($node, TRUE)
  ));
  db_update('booking_travel')->fields(array(
    'tid' => $node->nid,
    'booking_person_nid' => $node->booking_person_nid,
    'booking_transport_type' => $node->booking_transport_type,
    'booking_transport_from_morriset_reqd' => $node->booking_transport_from_morriset_reqd == 'Yes' ? 1 : 0,
    //'booking_transport_to_morriset_reqd' => $node->booking_transport_to_morriset_reqd,
    'booking_flightnum_inbound' => $node->booking_flightnum_inbound,
    'booking_flight_datetime_inbound' => _datetime_to_ts($node->booking_flight_datetime_inbound),
    'booking_flightnum_outbound' => $node->booking_flightnum_outbound,
    'booking_flight_datetime_outbound' => _datetime_to_ts($node->booking_flight_datetime_outbound),
    'booking_accom_before_reqd' => $node->booking_accom_before_reqd == 'Yes' ? 1 : 0,
    //'booking_accom_before_staying_with' => $node->booking_accom_before_staying_with,
    'booking_accom_after_reqd' => $node->booking_accom_after_reqd == 'Yes' ? 1 : 0
    //'booking_accom_after_staying_with' => $node->booking_accom_after_staying_with,
  ))->condition('tid', $node->nid)->execute();
  
  watchdog('booking', 'Updating travel form booking_person table');
  
  //update the booking_person fields
  db_update('booking_person')->fields(array(
    'booking_dietary' => $node->booking_dietary,
    'booking_medical_conditions' => $node->booking_medical_conditions,
    'booking_bf_gf_nid' => $node->booking_bf_gf_nid == '' ? 0 : $node->booking_bf_gf_nid,
    'booking_room_mate1' => $node->booking_room_mate1
  ))->condition('nid', $node->booking_person_nid)->execute();
  
  //set the boyfriend/girlfriend to point to this person
  if ($node->booking_bf_gf_nid <> 0) {
    db_update('booking_person')->fields(array(
      'booking_bf_gf_nid' => $node->booking_person_nid
    ))->condition('nid', $node->booking_bf_gf_nid)->execute();
  }
}

function travel_delete($node)
{
  $person_id = $node->booking_person_nid;
  $num_deleted = db_delete('booking_travel')->condition('tid', $node->nid)->execute();
  $message = t("Successfully deleted !num row(s) from the booking_travel table, corresponding to person ID !id", array(
    '!num' => $num_deleted,
    '!id' => $person_id
  ));
  drupal_set_message($message, $type = 'status');
}


function travel_view($node, $view_mode)
{
  global $event;
  
  //fetch details about the person
  $person = db_query("SELECT p.*, t.* from {booking_person} p " . "left outer join {booking_travel} t on p.nid = t.booking_person_nid " . "where p.nid = :nid", array(
    ':nid' => $node->booking_person_nid
  ))->fetchObject();
  //and their boyfriend/girlfriend if it is defined	
  if ($person->booking_bf_gf_nid != 0) {
    $query = db_query("Select booking_firstname, booking_lastname from {booking_person} where nid = :nid", array(
      ':nid' => $node->booking_bf_gf_nid
    ))->fetchObject();
    $bf_gf = $query->booking_firstname . " " . $query->booking_lastname;
  } else
    $bf_gf = "N/A";
  
  
  $header = array(
    'Attribute',
    'Value'
  );
  $rows = array();
  
  $rows[] = array(
    t('Name:'),
    l(t('!first !last', array(
      '!first' => $person->booking_firstname,
      '!last' => $person->booking_lastname
    )), t('node/!id', array(
      '!id' => $node->booking_person_nid
    )))
  );
  $rows[] = array(
    t('Transport Type:'),
    $node->booking_transport_type
  );
  $rows[] = array(
    t('Catching the train to Study Week:'),
    $node->booking_transport_from_morriset_reqd == 1 ? 'Yes' : 'No'
  );
  $rows[] = array(
    t('Inbound Flight Number:'),
    $node->booking_flightnum_inbound
  );
  $rows[] = array(
    t('Flight Arrival:'),
    t('!date', array(
      '!date' => format_date($node->booking_flight_datetime_inbound, 'custom', 'd/m/Y H:i')
    ))
  );
  $rows[] = array(
    t('Outbound Flight Number:'),
    $node->booking_flightnum_outbound
  );
  $rows[] = array(
    t('Flight Departure:'),
    t('!date', array(
      '!date' => format_date($node->booking_flight_datetime_outbound, 'custom', 'd/m/Y H:i')
    ))
  );
  $rows[] = array(
    t('Accommodation before Study Week Required:'),
    $node->booking_accom_before_reqd == 1 ? 'Yes' : 'No'
  );
  $rows[] = array(
    t('Accommodation after Study Week Required:'),
    $node->booking_accom_after_reqd == 1 ? 'Yes' : 'No'
  );
  //fields from booking_person
  $rows[] = array(
    t('Special Dietary Requirements:'),
    $node->booking_dietary
  );
  $rows[] = array(
    t('Special Medical Conditions:'),
    $node->booking_medical_conditions
  );
  $rows[] = array(
    t('Boyfriend/Girlfriend:'),
    $bf_gf
  );
  $rows[] = array(
    t('Requested Room mate(s):'),
    $node->booking_room_mate1
  );
  $node->content['details'] = array(
    '#markup' => theme('table', array(
      'header' => $header,
      'rows' => $rows
    )),
    '#weight' => 1
  );
  return $node;
}