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Gyro-PHP > Documentation

ETagRenderDecorator Class Reference

The etag render decorator creates a md5 hash of rendered page and compares this with an etag sended along by the browser. More...

Inheritance diagram for ETagRenderDecorator:
RenderDecoratorBase IRenderDecorator

List of all members.

Public Member Functions
  render_page ($page_data, $content_render_decorator, $policy=IView::NONE)
  Render page.

Detailed Description

The etag render decorator creates a md5 hash of rendered page and compares this with an etag sended along by the browser.

It does this only if no etag is already present, this is: If the site is not cached.

Definition at line 8 of file etagrenderdecorator.cls.php.

Member Function Documentation

ETagRenderDecorator::render_page ( $  page_data,
$  content_render_decorator,
$  policy = IView::NONE  
)

Render page.

Parameters:
PageData  $page_data
IRenderDecorator  Decorator to invoke render_content upon
int  $policy If set to IView::DISPLAY, content is printed, if false it is returned only
Returns:
void

Reimplemented from RenderDecoratorBase.

Definition at line 17 of file etagrenderdecorator.cls.php.

00017                                                                                                 {
00018                 $ret = parent::render_page($page_data, $content_render_decorator, $policy);
00019                 if ($ret && !Common::is_header_sent('etag')) {
00020                         $etag = md5($ret);
00021                         Common::check_if_none_match($etag);
00022                         Common::header('etag', $etag);
00023                         // Send Cache headers
00024                         Common::header('Pragma', '', true);
00025                         Common::header('Cache-Control', 'private, no-cache, must-revalidate', true);
00026                 }
00027                 return $ret;
00028         }
The documentation for this class was generated from the following file: