public function Blocache::prepareContextsToStorage in Blocache (Block Cache Control) 8

Prepares the cache contexts for storage into third-party setting.

Parameters

array $values: The context values from block configuration.

The array must have key => value pairs respecting the standard:

• {cache_context_name} => 'cache context name'
• {cache_context_name}_arg => 'cache context argument'.

Return value

array Returns an array with values respecting the standard: {cache_context_name}:{cache_context_name_arg}

File

src/Blocache.php, line 61

Class

Blocache

Class Blocache.

Namespace

Drupal\blocache

Code

public function prepareContextsToStorage(array $values) {
  $contexts = [];
  $i = 0;
  foreach ($values as $key => $value) {
    $count = strlen('__arg');
    if (substr($key, -$count) === '__arg') {
      continue;
    }
    if ($value === 1) {
      $contexts[$i] = $key;
      if ($arg = $values[$key . '__arg']) {
        $contexts[$i] .= ':' . $arg;
      }
      $i++;
    }
  }
  return $contexts;
}