README

This extension is just a helper tool and currently is experimental.

Domain modelling

Extbase domain entities that shall be related to an existing FrontendUser entity require a dedicates property of type \TYPO3\CMS\Extbase\Domain\Model\FrontendUser (or any sub-class of this model).

In the following example Customer is the entity to be resolved base on a website frontend user.

class Customer extends \TYPO3\CMS\Extbase\DomainObject\AbstractEntity
{
    /**
     * Frontend User
     *
     * @var \TYPO3\CMS\Extbase\Domain\Model\FrontendUser
     */
    protected $user;

Resolving entity subject

In order to resolve subjects of type Customer based on the current logged in frontend user the session service helper provides the following API:

$currentCustomer = SubjectResolver::get()
    ->forClassName(Customer::class)
    ->forPropertyName('user')
    ->resolve();

In case no frontend user is logged in or could not be mapped to a subject an exception of type InvalidSessionException is thrown. In case more than one subjects would be resolved, a SubjectException is thrown.

Resolving frontend user entity

In order to resolve the Extbase entity (or a sub-class) that is related to the currently logged in frontend user, the following API is provided:

$frontendUser = FrontendUserResolver::get()
    ->forClassName(\TYPO3\CMS\Extbase\Domain\Model\FrontendUser::class)
    ->resolve();

Using session subject collection

SubjectCollection inherits from \ArrayObject and thus can be used like an array in PHP. In case there are items in the session for the mandatory scope (project/shopping-cart in the example below), those items are resolved from session storage automatically.

/** @var $entity \TYPO3\CMS\Extbase\DomainObject\AbstractEntity */
$entity = $this->entityRepository->findByIdentifier(123);
$collection = SubjectCollection::get('project/shopping-cart');
$collection[] = $entity;
$collection->persist();

In case no frontend user is logged in or could not be mapped to a subject an exception of type InvalidSessionException is thrown.