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   1  <?php
   2  // $Id: views_plugin_cache_time.inc,v 1.3 2009/06/30 21:57:22 merlinofchaos Exp $
   3  
   4  /**
   5   * Simple caching of query results for Views displays.
   6   */
   7  class views_plugin_cache_time extends views_plugin_cache {
   8    function option_defaults(&$options) {
   9      $options['results_lifespan'] = 3600;
  10      $options['output_lifespan'] = 3600;
  11    }
  12  
  13    function options_form(&$form, &$form_state) {
  14      $options = array(60, 300, 1800, 3600, 21600, 518400);
  15      $options = drupal_map_assoc($options, 'format_interval');
  16      $options = array(-1 => t('Never cache')) + $options;
  17  
  18      $form['results_lifespan'] = array(
  19        '#type' => 'select',
  20        '#title' => t('Query results'),
  21        '#description' => t('The length of time raw query results should be cached.'),
  22        '#options' => $options,
  23        '#default_value' => $this->options['results_lifespan'],
  24      );
  25      $form['output_lifespan'] = array(
  26        '#type' => 'select',
  27        '#title' => t('Rendered output'),
  28        '#description' => t('The length of time rendered HTML output should be cached.'),
  29        '#options' => $options,
  30        '#default_value' => $this->options['output_lifespan'],
  31      );
  32    }
  33  
  34    function summary_title() {
  35      return format_interval($this->options['results_lifespan'], 1) . '/' . format_interval($this->options['output_lifespan'], 1);
  36    }
  37  
  38    function cache_expire($type) {
  39      if ($lifespan = $this->options[$type . '_lifespan']) {
  40        $cutoff = time() - $lifespan;
  41        return $cutoff;
  42      }
  43      else {
  44        return FALSE;
  45      }
  46    }
  47  
  48  }