Làm việc với Drupal 8 Block Cache năm 2016

Làm việc với Drupal 8 Block Cache năm 2016

In case you've had trouble tracking it down (I did), the approach to caching custom blocks is different in Drupal 8 than in Drupal 7. In Drupal 8 all renderable arrays are cacheable – including, of course, those returned by custom blocks.

The new and much-improved Cache API in Drupal 8 provides a sophisticated approach to caching all things renderable–whether pages, entities or, for our case, blocks. Whereas in Drupal 7 default cache settings were returned along with other block settings in "hook_block_info()", Drupal 8 allows developers to manage cache behavior for blocks directly in the render array returned by the block object's "build()" method.

In Drupal 7, caching a block by role looks this:

function mymodule_block_info() {
  $blocks = array();
  $blocks['mymodule_example_block'] = array(
    'info' => t('Block title'),
    // Block caching options (per role, per user, etc.)
    // DRUPAL_CACHE_PER_ROLE is the default.
    'cache' => DRUPAL_CACHE_PER_ROLE,
  );
  return $blocks;
}

In Drupal 8, cache settings are manipulated directly in renderable arrays returned by (among other things) a block's build() method:

class MyCustomBlock extends BlockBase {
  public function build() {
    return array(
      '#markup' => $this->t('My custom block content'),
      '#cache' => array(
        'contexts' => array('user.roles'),
      ),
    );
  }

Available parameters for manipulating cache settings include 'keys', 'contexts', 'tags', 'max-age' and 'bin'. Detailed documentation about cache management in Drupal 8 is available on Drupal.org.

Beyond implications for caching blocks (which had me scouring Google when first writing custom block plugins for Drupal 8) there are huge implications for caching everything. In Drupal 8, cache behavior needs to be a consideration when rendering absolutely anything via the render API. More on that on Drupal.org.

 

Bạn thấy bài viết này như thế nào?: 
No votes yet
Ảnh của Tommy Tran

Tommy owner Express Magazine

Drupal Developer having 9+ year experience, implementation and having strong knowledge of technical specifications, workflow development. Ability to perform effectively and efficiently in team and individually. Always enthusiastic and interseted to study new technologies

  • Skype ID: tthanhthuy

Tìm kiếm bất động sản

 

Advertisement

 

jobsora

Dich vu khu trung tphcm

Dich vu diet chuot tphcm

Dich vu diet con trung

Quảng Cáo Bài Viết

 
Adding a WYSIWYG Editor to Your Drupal Site

Thêm WYSIWYG Editor trong Drupal Site của bạn

WYSIWYG stands for "What You See Is What You Get" ... if you select some text and click the "bold" button, that text will be bold. If you select some text and click the "italic" button, that text will be in italics. There's no messing around with HTML. That will be a relief to some of you and more particularly ... your clients and site visitors.

Ultrabook đầu tiên có ổ đĩa quang

Ultrabook đầu tiên có ổ đĩa quang

Máy tính xách tay Samsung Series 5 cỡ 14 inch tích hợp ổ DVD và card đồ họa rời của AMD giúp chạy mượt những game 3D mới nhất.

Thủ thuật SEO Factors cho Drupal 7 trong năm 2014

Thủ thuật SEO Factors cho Drupal 7 trong năm 2014

Now, with all the usual caveats about correlations not equaling causation, here’s a list of their top correlated ranking factors that can be influenced with

Công ty diệt chuột T&C

 

Diet con trung