Created
March 11, 2015 12:12
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Minify tags
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<?php | |
/** | |
* Minifies and removes unneeded cache tags. | |
* | |
* @param array $cache_tags | |
* List of cache tags. | |
* | |
* @return array | |
* Shortened and cleaned up cache tag list. | |
*/ | |
public function minifyTags(array $cache_tags) { | |
$minified_tags = []; | |
$has_node_list_tag = in_array('node_list', $cache_tags); | |
$has_block_list_tag = in_array('config:block_list', $cache_tags); | |
$add_menu_list_tag = FALSE; | |
foreach ($cache_tags as $tag) { | |
// Skip specific node tags if the list cache tag is present. | |
if ($has_node_list_tag && strpos($tag, 'node:') !== FALSE) { | |
continue; | |
} | |
// Skip specific block cache tags if the list cache tag is present. | |
if ($has_block_list_tag && strpos($tag, 'config:block.block.') !== FALSE) { | |
continue; | |
} | |
// Skip specific node tags if the list cache tag is present. | |
if (strpos($tag, 'config:system.menu.') !== FALSE) { | |
$add_menu_list_tag = TRUE; | |
continue; | |
} | |
$minified_tags[] = $tag; | |
}; | |
// @todo Replace this with a fancy algorithm. | |
$replacements = [ | |
'config:' => 'c:', | |
'block_content:' => 'bc:', | |
'page_manager.page.' => 'pmp.', | |
'file:' => 'f:', | |
'taxonomy_term:' => 'tm:', | |
'theme_global_setting' => 'tgs', | |
'user:' => 'u:', | |
]; | |
// Shorten known cache tags. | |
$minified_tags = str_replace(array_keys($replacements), array_values($replacements), $minified_tags); | |
if ($add_menu_list_tag) { | |
$minified_tags[] = 'c:menu_list'; | |
} | |
return $minified_tags; | |
} |
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