function _block_get_cache_id
_block_get_cache_id($block)
Assemble the cache_id to use for a given block.
The cache_id string reflects the viewing context for the current block instance, obtained by concatenating the relevant context information (user, page, ...) according to the block's cache settings (BLOCK_CACHE_* constants). Two block instances can use the same cached content when they share the same cache_id.
Theme and language contexts are automatically differentiated.
Parameters
$block: The block to get the cache_id from.
Return value
The string used as cache_id for the block.
File
- modules/block/block.module, line 971
- Controls the visual building blocks a page is constructed with.
Code
function _block_get_cache_id($block) { global $user; // User 1 being out of the regular 'roles define permissions' schema, // it brings too many chances of having unwanted output get in the cache // and later be served to other users. We therefore exclude user 1 from // block caching. if (variable_get('block_cache', FALSE) && !in_array($block->cache, array(DRUPAL_NO_CACHE, DRUPAL_CACHE_CUSTOM)) && $user->uid != 1) { // Start with common sub-patterns: block identification, theme, language. $cid_parts[] = $block->module; $cid_parts[] = $block->delta; drupal_alter('block_cid_parts', $cid_parts, $block); $cid_parts = array_merge($cid_parts, drupal_render_cid_parts($block->cache)); return implode(':', $cid_parts); } }
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https://api.drupal.org/api/drupal/modules!block!block.module/function/_block_get_cache_id/7.x