public function render($context)
{
try {
$expire_time = $this->expire_time_var->resolve($context);
} catch (VariableDoesNotExist $e) {
throw new TemplateSyntaxError('"cache" tag got an unknown variable: ' . $this->expire_time_var->var);
}
if (!is_numeric($expire_time)) {
throw new TemplateSyntaxError('"cache" tag got a non-integer timeout value: ' . print_r($expire_time, true));
}
$expire_time = (int) $expire_time;
// Build a unicode key for this fragment and all vary-on's.
$vs_ = array();
foreach ($this->vary_on as $var) {
$v_ = new Variable($var);
$vs_[] = urlencode($v_->resolve($context));
}
$args = join(':', $vs_);
unset($vs_);
$cache_key = 'template.cache.' . $this->fragment_name . '.' . md5($args);
$manager = Dja::getCacheManager();
$value = $manager->get($cache_key);
if ($value === null) {
$value = $this->nodelist->render($context);
$manager->set($cache_key, $value, $expire_time);
}
return $value;
}
/**
* Returns a compiled Template object for the given template name,
* handling template inheritance recursively.
*
* @param $template_name
*
* @return Template
*/
public static function getTemplate($template_name)
{
$self = get_called_class();
$get_template = function () use($template_name, $self) {
list($template, $origin) = $self::findTemplate($template_name);
if (!py_hasattr($template, 'render')) {
// template needs to be compiled
$template = $self::getTemplateFromString($template, $origin, $template_name);
}
return $template;
};
$use_cache = Dja::getSetting('TEMPLATE_CACHE');
if (!$use_cache) {
return $get_template();
}
$cacher = Dja::getCacheManager();
if (!($template = $cacher->get($template_name))) {
$template = $get_template();
$cacher->set($template_name, $template);
}
return $template;
}
