View source  
  <?php
namespace Drupal\pm_project\Entity;
use Drupal\Core\Entity\ContentEntityBase;
use Drupal\Core\Entity\EntityChangedTrait;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\user\UserInterface;
abstract class WorkableItem extends ContentEntityBase implements WorkableItemInterface {
  use EntityChangedTrait;
  
  public static function preCreate(EntityStorageInterface $storage_controller, array &$values) {
    parent::preCreate($storage_controller, $values);
    $values += [
      'uid' => \Drupal::currentUser()
        ->id(),
    ];
  }
  
  public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
    $fields = parent::baseFieldDefinitions($entity_type);
    $fields['uid'] = BaseFieldDefinition::create('entity_reference')
      ->setLabel(t('Authored by'))
      ->setDescription(t('The user ID of author of the Issue entity.'))
      ->setRevisionable(TRUE)
      ->setSetting('target_type', 'user')
      ->setSetting('handler', 'default')
      ->setDisplayOptions('view', [
      'label' => 'hidden',
      'type' => 'author',
      'weight' => 0,
    ])
      ->setDisplayOptions('form', [
      'type' => 'entity_reference_autocomplete',
      'weight' => 5,
      'settings' => [
        'match_operator' => 'CONTAINS',
        'size' => '60',
        'autocomplete_type' => 'tags',
        'placeholder' => '',
      ],
    ])
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE);
    $fields['label'] = BaseFieldDefinition::create('string')
      ->setLabel(t('Label'))
      ->setRevisionable(TRUE)
      ->setSettings([
      'max_length' => 255,
      'text_processing' => 0,
    ])
      ->setDefaultValue('')
      ->setDisplayOptions('view', [
      'label' => 'above',
      'type' => 'string',
      'weight' => -4,
    ])
      ->setDisplayOptions('form', [
      'type' => 'string_textfield',
      'weight' => -4,
    ])
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE)
      ->setRequired(TRUE);
    $fields['project'] = BaseFieldDefinition::create('entity_reference')
      ->setLabel(new TranslatableMarkup('Project'))
      ->setSetting('target_type', 'pm_project')
      ->setSetting('handler', 'default')
      ->setDisplayOptions('view', [
      'label' => 'hidden',
      'type' => 'Project',
      'weight' => 0,
    ])
      ->setDisplayOptions('form', [
      'type' => 'entity_reference_autocomplete',
      'weight' => 5,
      'settings' => [
        'match_operator' => 'CONTAINS',
        'size' => '60',
        'autocomplete_type' => 'tags',
        'placeholder' => '',
      ],
    ])
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE)
      ->setRequired(TRUE)
      ->setCardinality(1);
    $fields['created'] = BaseFieldDefinition::create('created')
      ->setLabel(t('Created'))
      ->setDescription(t('The time that the entity was created.'));
    $fields['changed'] = BaseFieldDefinition::create('changed')
      ->setLabel(t('Changed'))
      ->setDescription(t('The time that the entity was last edited.'));
    return $fields;
  }
  
  public function getProject() {
    return (bool) $this
      ->getEntityKey('project');
  }
  
  public function setProject($project_id) {
    $this
      ->set('project', $project_id);
    return $this;
  }
  
  public function getLabel() {
    return $this
      ->get('label')->value;
  }
  
  public function setLabel($label) {
    $this
      ->set('label', $label);
    return $this;
  }
  
  public function getCreatedTime() {
    return $this
      ->get('created')->value;
  }
  
  public function setCreatedTime($timestamp) {
    $this
      ->set('created', $timestamp);
    return $this;
  }
  
  public function getOwner() {
    return $this
      ->get('uid')->entity;
  }
  
  public function getOwnerId() {
    return $this
      ->get('uid')->target_id;
  }
  
  public function setOwnerId($uid) {
    $this
      ->set('uid', $uid);
    return $this;
  }
  
  public function setOwner(UserInterface $account) {
    $this
      ->set('uid', $account
      ->id());
    return $this;
  }
  
  public function getChangedTime() {
    return $this
      ->get('changed')->value;
  }
  
  public function setChangedTime($timestamp) {
    $this
      ->set('changed', $timestamp);
    return $this;
  }
}