0);
$options['results_max_lifespan'] = array('default' => 21600);
$options['output_min_lifespan'] = array('default' => 0);
$options['output_max_lifespan'] = array('default' => 21600);
$options['keys'] = array('default' => array());
return $options;
}
function option_defaults(&$options) {
$options['results_max_lifespan'] = 21600;
$options['output_max_lifespan'] = 21600;
}
function options_form(&$form, &$form_state) {
$form['keys'] = array(
'#title' => t('Cache segments'),
'#type' => 'fieldset',
'#description' => t("Choose which events will update this View's cache."),
);
foreach (views_content_cache_get_plugin() as $key_id => $plugin) {
$option_value = isset($this->options['keys'][$key_id]) ? $this->options['keys'][$key_id] : array();
$form['keys'][$key_id] = $plugin->options_form($option_value, $this);
}
$options = array(60, 300, 1800, 3600, 21600, 518400);
$options = drupal_map_assoc($options, 'format_interval');
$options = array(-1 => t('None')) + $options;
$form['results_min_lifespan'] = array(
'#type' => 'select',
'#title' => t('Query results - Minimum lifetime'),
'#description' => t('Query results will be cached for at least this amount of time, even if a selected event has occured more recently.'),
'#options' => $options,
'#default_value' => $this->options['results_min_lifespan'],
);
$form['results_max_lifespan'] = array(
'#type' => 'select',
'#title' => t('Query results - Maximum lifetime'),
'#description' => t('Query results will be cached for at most this amount of time.'),
'#options' => $options,
'#default_value' => $this->options['results_max_lifespan'],
);
$form['output_min_lifespan'] = array(
'#type' => 'select',
'#title' => t('Rendered output - Minimum lifetime'),
'#description' => t('Rendered HTML output will be cached for at least this amount of time, even if a selected event has occured more recently.'),
'#options' => $options,
'#default_value' => $this->options['output_min_lifespan'],
);
$form['output_max_lifespan'] = array(
'#type' => 'select',
'#title' => t('Rendered output - Maximum lifetime'),
'#description' => t('Rendered HTML output will be cached for at most this amount of time.'),
'#options' => $options,
'#default_value' => $this->options['output_max_lifespan'],
);
}
function summary_title() {
return t('Content cache');
}
/**
* Return the expiry time for this cache plugin.
*
* This should be the last time that the content has changed, altered to allow
* for the the min/max lifetimes.
*/
function cache_expire($type) {
$cutoff = 0;
// Retrieve the latest update time matching the settings on this View.
$cid = array();
if (!empty($this->options['keys'])) {
foreach ($this->options['keys'] as $key_id => $key_values) {
if ($plugin = views_content_cache_get_plugin($key_id)) {
$cid[$key_id] = $plugin->view_key($key_values, $this);
}
}
}
if (!empty($cid) && $timestamp = views_content_cache_update_get($cid)) {
$cutoff = $timestamp;
}
// If there's a minimum lifetime, enforce it:
if ($min_lifespan = $this->options[$type . '_min_lifespan']) {
$min_lifespan = REQUEST_TIME - $min_lifespan;
$cutoff = min($min_lifespan, $cutoff);
}
// Only enforce a maximum lifetime if it's been specifically selected:
if ($max_lifespan = $this->options[$type . '_max_lifespan']) {
if ($max_lifespan != -1) {
$max_lifespan = REQUEST_TIME - $max_lifespan;
$cutoff = max($max_lifespan, $cutoff);
}
}
return $cutoff;
}
/**
* Determine expiration time in the cache table of the cache type
* or CACHE_PERMANENT if item shouldn't be removed automatically from cache.
*
* @param $type
* The cache type, either 'query', 'result' or 'output'.
* @return int
* The timestamp of the expiration time.
*/
function cache_set_expire($type) {
$expiration_time = CACHE_PERMANENT;
// Only enforce a maximum lifetime if it's been specifically selected:
if ($max_lifespan = $this->options[$type . '_max_lifespan']) {
if ($max_lifespan != -1) {
$max_lifespan = REQUEST_TIME + $max_lifespan;
$expiration_time = max($max_lifespan, $expiration_time);
}
}
return $expiration_time;
}
}