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   1  <?php
   2  /**
   3   * Style plugin to create date back/next navigation.
   4   * 
   5   * The style plugin passes some argument values to the theme, and
   6   * ensures that the date argument is present and that the default
   7   * value is set to the current date.
   8   */
   9  class date_navigation_plugin_style extends views_plugin_style {
  10  
  11    /**
  12     * Style validation.
  13     */
  14    function validate() {
  15      $errors = parent::validate();
  16  
  17      $arguments = $this->display->handler->get_option('arguments');
  18      $count = 0;
  19      $found = FALSE;
  20      foreach ($arguments as $id => $argument) {
  21        if ($argument['field'] == 'date_argument') {
  22          if ($count > 0) {
  23            $errors[] = t('The %style cannot use more than one Date: Date argument.', array('%style' => $this->definition['title']));          
  24          }
  25          elseif ($argument['default_argument_type'] != 'date') {
  26            $errors[] = t('The %style requires the Date: Date argument be set to default to the current date.', array('%style' => $this->definition['title']));      
  27          }
  28          $count++;
  29          $found = TRUE;
  30        }
  31      }
  32      if (!$found) {
  33        $errors[] = t('The %style requires the Date: Date argument.', array('%style' => $this->definition['title']));      
  34      }
  35      return $errors;
  36    }
  37  
  38    function query() {
  39      require_once('./'. drupal_get_path('module', 'date_api') .'/date_api_sql.inc');
  40  
  41      // Bring the argument information into the view so our theme can access it.
  42      $i = 0;    
  43      foreach ($this->view->argument as $id => $argument) {
  44        if ($id == 'date_argument') {
  45          $this->view->date_info->granularity = $argument->granularity;
  46          $this->view->date_info->date_arg = !empty($this->view->args) && count($this->view->args) > $argument->position ? $this->view->args[$argument->position] : '';
  47          $this->view->date_info->date_arg_pos = $i;
  48          $this->view->date_info->year = isset($argument->year) ? $argument->year : NULL;
  49          $this->view->date_info->month = isset($argument->month) ? $argument->month: NULL;
  50          $this->view->date_info->day = isset($argument->day) ? $argument->day : NULL;
  51          $this->view->date_info->week = isset($argument->week) ? $argument->week : NULL;
  52          $this->view->date_info->min_date = $argument->min_date;
  53          $this->view->date_info->max_date = $argument->max_date;
  54          $this->view->date_info->url = $this->view->get_url();
  55        }
  56        $i++;
  57      }
  58  
  59      // bring the node type into the query so we can use it in the theme
  60      $this->view->query->add_field('node', 'type');
  61  
  62    }
  63  }