gs-ads.module

function gs_ads_menu() {
  $items = array();

  $items['admin/bookings/takeovers'] = array(
   'type' => MENU_CALLBACK,
   'description' => 'A form for booking ad takeovers.',
   'page callback' => 'gs_ads_custom_page_display',
   'access callback' => 'user_access',
   'access arguments' => array('eck add booking takeover entities'),
   'file' => 'includes/gs_ads.form.inc'
  );

  return $items;
}

 
function gs_ads_custom_page_display() {
  drupal_set_title('Takeovers');
  $output  = render(drupal_get_form('gs_ads_takeover_form'));
  $output .= render(views_embed_view('ad_booking_admin','takeovers'));
  return $output;
}

/**
 * Implements hook_preprocess_html().
 */
function gs_ads_preprocess_html(&$vars) {
  $current_path = current_path();
  $go_adfree = FALSE;

    // Add conditional stylesheets for admin pages on admin theme.
    if ($current_path == "admin/bookings/takeovers") {
      $theme_path = drupal_get_path('theme', 'straight2014');
      drupal_add_css(drupal_get_path('module', 'gs_ads') . '/css/gs_ads_admin.css', array('weight' => CSS_THEME));
      drupal_add_js(drupal_get_path('module', 'gs_ads') . '/js/gs_ads_admin.js', array('weight' => 1));
    }

    if (path_is_admin($current_path) && path_to_theme() == 'themes/seven') {
      return;
    }
  }
  
  /******
 * form.inc starts here
 *******/
 
  <?php

function gs_ads_takeover_form($form, &$form_state) {

  $section_options = array();
  $section_options['/home'] = t('Home');
  $section_options['/news'] = t('News');
  $section_options['/music'] = t('Music');
  $section_options['/arts'] = t('Arts');
	$section_options['/life'] = t('Life');
  $section_options['/movies'] = t('Movies');
  $section_options['/food'] = t('Food');
  $section_options['/cannabis'] = t('Cannabis');
  $section_options['/contests'] = t('Contests');

  $form['section'] = array(
    '#title' => 'Section',
    '#type' => 'select',
    '#required' => TRUE,
    '#options' => $section_options,
    '#empty_option' => ''
  );

  $form['tier'] = array(
    '#title' => 'Tier',
    '#type' => 'select',
    '#required' => TRUE,
    '#options' => array(7 => 7),
    '#default_value' => 7
  );
  
  $url = request_uri();
  if(strpos($url, '?') !== false){
    $parts = parse_url($url);
    parse_str($parts['query'], $query);
    $tomorrow = date('Y-m-d', $query['start']);
    $day_after_tomorrow = date('Y-m-d', $query['end']);
  }
  else {
    $date = date('Y-m-d');  
    $tomorrow = date('Y-m-d',strtotime($date . "+1 days"));
    $day_after_tomorrow = date('Y-m-d',strtotime($date . "+2 days"));
  }

  $form['start_date'] = array(
    '#title' => 'Starts',
    '#type' => 'date_popup',
    '#date_format' => 'Y/m/d H:i',
    '#default_value' => $tomorrow,
    '#date_label_position' => 'within',
    '#date_year_range' => '-0:+3',
    '#timepicker' => 'timepicker',
    '#datepicker_options' => array(
      'minDate' => 0,     
    ),
    '#timepicker_options' => array(
      'defaultTime' => '00:00',
    ),
    '#required' => TRUE
  );

  $form['end_date'] = array(
    '#title' => 'Ends',
    '#type' => 'date_popup',
    '#date_format' => 'Y/m/d H:i',
    '#default_value' => $day_after_tomorrow,
    '#date_label_position' => 'within',
    '#date_year_range' => '-0:+3',
    '#timepicker' => 'timepicker',
    '#datepicker_options' => array(
      'minDate' => 1,
    ),
    '#timepicker_options' => array(
      'defaultTime' => '00:00',
    ),
    '#required' => TRUE
  );

  $form['note'] = array(
    '#title' => t("Note"),
    '#type' => 'textfield',
    '#size' => 15,
    '#default_value' => $u_supplied,
    '#required' => TRUE
  );

  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Add'),
    '#attributes' => array('class' => array('button button-red form-actions')),
    '#submit' => array('gs_ads_takeover_form_submit')
  );
  return $form;
}

function gs_ads_takeover_form_submit($form, &$form_state) {

  $entity = entity_create('booking', array('type' =>'takeover'));
  $entity->path = $form_state['values']['section'];
  $entity->tier = $form_state['values']['tier'];

  $start_date = strtotime($form_state['values']['start_date']);
  $entity->start = $start_date;

  $end_date = strtotime($form_state['values']['end_date']);
  $entity->end = $end_date;

  $entity->note = $form_state['values']['note'];
  $entity->save();
  
  if($entity->id){
    drupal_set_message('Your takeover for ' . $form_state['values']['note'] . ' from ' . date('D M d, Y',$start_date) . ' to ' . date('D M d, Y',$end_date) . ' has been booked in section ' . $form_state['values']['section'] . '.','status');
    $form_state['redirect'] = array(
      '/admin/bookings/takeovers',
        array(
          'query' => array(
            'start' => $start_date,
            'end' => $end_date
          ),
        ),
      );
  }
  else{
    drupal_set_message('There was an error saving a new takeover. Please try again.'. 'error');
  }

}

/****
*automagically set end date/time to be 24h from start time
*****/
<script>
(function ($) { 
  Drupal.behaviors.form_modif = {
    attach: function (context, settings) {
      $('input#edit-start-date-datepicker-popup-0').change(function(){

        var start_date = $('input#edit-start-date-datepicker-popup-0').val(),

          d = new Date(start_date),
          n = d.toLocaleDateString(),

          day = 86400,

          end_date = (new Date(n).getTime() / 1000) + day,

          d2 = new Date(end_date * 1000),
      
          yyyy = (d2.getFullYear()),
          mm = (('0' + (d2.getMonth() + 1)).slice(-2)),
          dd = (('0' + (d2.getDate())).slice(-2)),

          date = yyyy + '/' + mm + '/' + dd;

        $('input#edit-end-date-datepicker-popup-0').val(date);
      });
    }
  };
}(jQuery));
</script>