public function IsGroupMemberCacheContext::getContext in Group 8

Same name and namespace in other branches

1. 2.0.x src/Cache/Context/IsGroupMemberCacheContext.php \Drupal\group\Cache\Context\IsGroupMemberCacheContext::getContext()

Returns the string representation of the cache context.

A cache context service's name is used as a token (placeholder) cache key, and is then replaced with the string returned by this method.

Parameters

string|null $parameter: The parameter, or NULL to indicate all possible parameter values.

Return value

string The string representation of the cache context. When $parameter is NULL, a value representing all possible parameters must be generated.

Throws

\LogicException Thrown if the passed in parameter is invalid.

Overrides CalculatedCacheContextInterface::getContext

File

src/Cache/Context/IsGroupMemberCacheContext.php, line 81

Class

IsGroupMemberCacheContext

Defines a cache context for "is a group member or not" caching.

Namespace

Drupal\group\Cache\Context

Code

public function getContext($group_id = NULL) {
  if (!$group_id) {
    throw new \LogicException('No group ID provided for user.is_group_member cache context.');
  }
  $group = $this->entityTypeManager
    ->getStorage('group')
    ->load($group_id);
  if (!$group) {
    throw new \LogicException('Incorrect group ID provided for user.is_group_member cache context.');
  }
  return $this->membershipLoader
    ->load($group, $this->currentUser) ? '1' : '0';
}