class EntityTestUpdate

class EntityTestUpdate extends ContentEntityBase {
    
    /**
     * {@inheritdoc}
     */
    public static function preCreate(EntityStorageInterface $storage, array &$values) {
        parent::preCreate($storage, $values);
        if (empty($values['type'])) {
            $values['type'] = $storage->getEntityTypeId();
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
        // This entity type is used for generating database dumps from Drupal
        // 8.0.0-rc1, which didn't have the entity key base fields defined in
        // the parent class (ContentEntityBase), so we have to duplicate them here.
        $fields[$entity_type->getKey('id')] = BaseFieldDefinition::create('integer')->setLabel(new TranslatableMarkup('ID'))
            ->setDescription(new TranslatableMarkup('The ID of the test entity.'))
            ->setReadOnly(TRUE)
            ->setSetting('unsigned', TRUE);
        $fields[$entity_type->getKey('uuid')] = BaseFieldDefinition::create('uuid')->setLabel(new TranslatableMarkup('UUID'))
            ->setDescription(new TranslatableMarkup('The UUID of the test entity.'))
            ->setReadOnly(TRUE);
        $fields[$entity_type->getKey('bundle')] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Type'))
            ->setDescription(new TranslatableMarkup('The bundle of the test entity.'))
            ->setRequired(TRUE);
        if ($entity_type->hasKey('revision')) {
            $fields[$entity_type->getKey('revision')] = BaseFieldDefinition::create('integer')->setLabel(new TranslatableMarkup('Revision ID'))
                ->setReadOnly(TRUE)
                ->setSetting('unsigned', TRUE);
        }
        $fields[$entity_type->getKey('langcode')] = BaseFieldDefinition::create('language')->setLabel(new TranslatableMarkup('Language'));
        if ($entity_type->isRevisionable()) {
            $fields[$entity_type->getKey('langcode')]
                ->setRevisionable(TRUE);
        }
        if ($entity_type->isTranslatable()) {
            $fields[$entity_type->getKey('langcode')]
                ->setTranslatable(TRUE);
        }
        $fields['name'] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Name'))
            ->setDescription(new TranslatableMarkup('The name of the test entity.'))
            ->setTranslatable(TRUE)
            ->setRevisionable(TRUE)
            ->setSetting('max_length', 32)
            ->setDisplayOptions('view', [
            'label' => 'hidden',
            'type' => 'string',
            'weight' => -5,
        ])
            ->setDisplayOptions('form', [
            'type' => 'string_textfield',
            'weight' => -5,
        ]);
        $fields['test_single_property'] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Field with a single property'))
            ->setTranslatable(TRUE)
            ->setRevisionable(TRUE);
        $fields['test_multiple_properties'] = BaseFieldDefinition::create('multi_value_test')->setLabel(new TranslatableMarkup('Field with multiple properties'))
            ->setTranslatable(TRUE)
            ->setRevisionable(TRUE);
        $fields['test_single_property_multiple_values'] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Field with a single property and multiple values'))
            ->setCardinality(2)
            ->setTranslatable(TRUE)
            ->setRevisionable(TRUE);
        $fields['test_multiple_properties_multiple_values'] = BaseFieldDefinition::create('multi_value_test')->setLabel(new TranslatableMarkup('Field with multiple properties and multiple values'))
            ->setCardinality(2)
            ->setTranslatable(TRUE)
            ->setRevisionable(TRUE);
        $fields['test_non_rev_field'] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Non Revisionable Field'))
            ->setDescription(new TranslatableMarkup('A non-revisionable test field.'))
            ->setCardinality(1)
            ->setRevisionable(FALSE)
            ->setTranslatable(TRUE);
        $fields['test_non_mul_field'] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Non Translatable Field'))
            ->setDescription(new TranslatableMarkup('A non-translatable test field.'))
            ->setCardinality(1)
            ->setRevisionable(TRUE)
            ->setTranslatable(FALSE);
        $fields['test_non_mulrev_field'] = BaseFieldDefinition::create('string')->setLabel(new TranslatableMarkup('Non Revisionable and Translatable Field'))
            ->setDescription(new TranslatableMarkup('A non-revisionable and non-translatable test field.'))
            ->setCardinality(1)
            ->setRevisionable(FALSE)
            ->setTranslatable(FALSE);
        $fields += \Drupal::state()->get('entity_test_update.additional_base_field_definitions', []);
        return $fields;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function bundleFieldDefinitions(EntityTypeInterface $entity_type, $bundle, array $base_field_definitions) {
        $fields = parent::bundleFieldDefinitions($entity_type, $bundle, $base_field_definitions);
        $fields += \Drupal::state()->get('entity_test_update.additional_bundle_field_definitions.' . $bundle, []);
        return $fields;
    }

}