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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\datetime\DateTimeComputed. | |
| */ | |
| namespace Drupal\datetime; | |
| use Drupal\Core\Datetime\DrupalDateTime; | |
| use Drupal\Core\TypedData\DataDefinitionInterface; | |
| use Drupal\Core\TypedData\TypedDataInterface; | |
| use Drupal\Core\TypedData\TypedData; | |
| /** | |
| * A computed property for dates of date time field items. | |
| * | |
| * Required settings (below the definition's 'settings' key) are: | |
| * - date source: The date property containing the to be computed date. | |
| */ | |
| class DateTimeComputed extends TypedData { | |
| /** | |
| * Cached computed date. | |
| * | |
| * @var \DateTime|null | |
| */ | |
| protected $date = NULL; | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function __construct(DataDefinitionInterface $definition, $name = NULL, TypedDataInterface $parent = NULL) { | |
| parent::__construct($definition, $name, $parent); | |
| if (!$definition->getSetting('date source')) { | |
| throw new \InvalidArgumentException("The definition's 'date source' key has to specify the name of the date property to be computed."); | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getValue($langcode = NULL) { | |
| if ($this->date !== NULL) { | |
| return $this->date; | |
| } | |
| $item = $this->getParent(); | |
| $value = $item->{($this->definition->getSetting('date source'))}; | |
| $storage_format = $item->getFieldDefinition()->getSetting('datetime_type') == 'date' ? DATETIME_DATE_STORAGE_FORMAT : DATETIME_DATETIME_STORAGE_FORMAT; | |
| try { | |
| $date = DrupalDateTime::createFromFormat($storage_format, $value, DATETIME_STORAGE_TIMEZONE); | |
| if ($date instanceof DrupalDateTime && !$date->hasErrors()) { | |
| $this->date = $date; | |
| } | |
| } | |
| catch (\Exception $e) { | |
| // @todo Handle this. | |
| } | |
| return $this->date; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function setValue($value, $notify = TRUE) { | |
| $this->date = $value; | |
| // Notify the parent of any changes. | |
| if ($notify && isset($this->parent)) { | |
| $this->parent->onChange($this->name); | |
| } | |
| } | |
| } |