constant DRUPAL_NO_CACHE

The block should not get cached.

This setting should be used:

For simple blocks (notably those that do not perform any db query), where querying the db cache would be more expensive than directly generating the content.
For blocks that change too frequently.

Related topics

Block Caching: Constants that define each block's caching state.

17 uses of DRUPAL_NO_CACHE

Block::defineOptions in drupal/core/modules/block/lib/Drupal/block/Plugin/views/display/Block.php: Information about options for all kinds of purposes will be held here. @code 'option_name' => array(
Block::getCacheType in drupal/core/modules/block/lib/Drupal/block/Plugin/views/display/Block.php: Provide a single method to figure caching type, keeping a sensible default for when it's unset.
BlockCacheTest::testNoCache in drupal/core/modules/block/lib/Drupal/block/Tests/BlockCacheTest.php: Test DRUPAL_NO_CACHE.
BlockTest::testBlockRehash in drupal/core/modules/block/lib/Drupal/block/Tests/BlockTest.php: Test _block_rehash().
block_add_block_form_submit in drupal/core/modules/block/block.admin.inc: Form submission handler for block_add_block_form().

... See full list

File

drupal/core/includes/common.inc, line 142: Common functions that many Drupal modules will need to reference.

Code

const DRUPAL_NO_CACHE = -1;