--- /dev/null
+<?php
+
+namespace Drupal\{{ machine_name }}\Entity;
+
+{% sort %}
+{% if not revisionable %}
+use Drupal\Core\Entity\ContentEntityBase;
+{% endif %}
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Field\BaseFieldDefinition;
+{% if revisionable %}
+use Drupal\Core\Entity\RevisionableContentEntityBase;
+{% endif %}
+use Drupal\{{ machine_name }}\{{ class_prefix }}Interface;
+{% if author_base_field %}
+use Drupal\user\UserInterface;
+{% endif %}
+{% if changed_base_field %}
+use Drupal\Core\Entity\EntityChangedTrait;
+{% endif %}
+{% endsort %}
+
+/**
+ * Defines the {{ entity_type_label|lower }} entity class.
+ *
+ * @ContentEntityType(
+ * id = "{{ entity_type_id }}",
+ * label = @Translation("{{ entity_type_label }}"),
+ * label_collection = @Translation("{{ entity_type_label|plural }}"),
+ * handlers = {
+{% if template %}
+ * "view_builder" = "Drupal\Core\Entity\EntityViewBuilder",
+{% else %}
+ * "view_builder" = "Drupal\{{ machine_name }}\{{ class_prefix }}ViewBuilder",
+{% endif %}
+ * "list_builder" = "Drupal\{{ machine_name }}\{{ class_prefix }}ListBuilder",
+ * "views_data" = "Drupal\views\EntityViewsData",
+{% if access_controller %}
+ * "access" = "Drupal\{{ machine_name }}\{{ class_prefix }}AccessControlHandler",
+{% endif %}
+ * "form" = {
+ * "add" = "Drupal\{{ machine_name }}\Form\{{ class_prefix }}Form",
+ * "edit" = "Drupal\{{ machine_name }}\Form\{{ class_prefix }}Form",
+ * "delete" = "Drupal\Core\Entity\ContentEntityDeleteForm"
+ * },
+ * },
+ * base_table = "{{ entity_type_id }}",
+{% if revisionable %}
+ * revision_table = "{{ entity_type_id }}_revision",
+ * show_revision_ui = TRUE,
+{% endif %}
+{% if translatable %}
+ * translatable = TRUE,
+{% endif %}
+ * admin_permission = "administer {{ entity_type_label|lower }}",
+ * entity_keys = {
+ * "id" = "id",
+{% if revisionable %}
+ * "revision" = "revision_id",
+{% endif %}
+{% if translatable %}
+ * "langcode" = "langcode",
+{% endif %}
+ * "label" = "{{ title_base_field ? 'title' : 'id' }}",
+ * "uuid" = "uuid"
+ * },
+{% if revisionable %}
+ * revision_metadata_keys = {
+{% if author_base_field %}
+ * "revision_user" = "revision_uid",
+{% endif %}
+{% if created_base_field %}
+ * "revision_created" = "revision_timestamp",
+{% endif %}
+ * "revision_log_message" = "revision_log"
+ * },
+{% endif %}
+ * links = {
+ * "canonical" = "{{ entity_base_path }}/{{ '{' }}{{ entity_type_id }}{{ '}' }}",
+ * "edit-form" = "{{ entity_base_path }}/{{ '{' }}{{ entity_type_id }}{{ '}' }}/edit",
+ * "delete-form" = "{{ entity_base_path }}/{{ '{' }}{{ entity_type_id }}{{ '}' }}/delete",
+ * "collection" = "/admin/content/{{ entity_type_id|u2h }}"
+ * },
+{% if fieldable %}
+ * field_ui_base_route = "entity.{{ entity_type_id }}.settings"
+{% endif %}
+ * )
+ */
+class {{ class_prefix }} extends {% if revisionable %}Revisionable{% endif %}ContentEntityBase implements {{ class_prefix }}Interface {
+
+{% if changed_base_field %}
+ use EntityChangedTrait;
+
+{% endif %}
+ /**
+ * {@inheritdoc}
+ *
+ * When a new {{ entity_type_label|lower }} entity is created, set the uid entity reference to
+ * the current user as the creator of the entity.
+ */
+ public static function preCreate(EntityStorageInterface $storage_controller, array &$values) {
+ parent::preCreate($storage_controller, $values);
+ $values += ['uid' => \Drupal::currentUser()->id()];
+ }
+
+{% if title_base_field %}
+ /**
+ * {@inheritdoc}
+ */
+ public function getTitle() {
+ return $this->get('title')->value;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setTitle($title) {
+ $this->set('title', $title);
+ return $this;
+ }
+
+{% endif %}
+{% if status_base_field %}
+ /**
+ * {@inheritdoc}
+ */
+ public function isEnabled() {
+ return (bool) $this->get('status')->value;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setStatus($status) {
+ $this->set('promote', $status);
+ return $this;
+ }
+
+{% endif %}
+{% if created_base_field %}
+ /**
+ * {@inheritdoc}
+ */
+ public function getCreatedTime() {
+ return $this->get('created')->value;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setCreatedTime($timestamp) {
+ $this->set('created', $timestamp);
+ return $this;
+ }
+
+{% endif %}
+{% if author_base_field %}
+ /**
+ * {@inheritdoc}
+ */
+ public function getOwner() {
+ return $this->get('uid')->entity;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getOwnerId() {
+ return $this->get('uid')->target_id;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setOwnerId($uid) {
+ $this->set('uid', $uid);
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setOwner(UserInterface $account) {
+ $this->set('uid', $account->id());
+ return $this;
+ }
+
+{% endif %}
+ /**
+ * {@inheritdoc}
+ */
+ public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
+
+ $fields = parent::baseFieldDefinitions($entity_type);
+
+{% if title_base_field %}
+ $fields['title'] = BaseFieldDefinition::create('string')
+{% if revisionable %}
+ ->setRevisionable(TRUE)
+{% endif %}
+{% if translatable %}
+ ->setTranslatable(TRUE)
+{% endif %}
+ ->setLabel(t('Title'))
+ ->setDescription(t('The title of the {{ entity_type_label|lower }} entity.'))
+ ->setRequired(TRUE)
+ ->setSetting('max_length', 255)
+ ->setDisplayOptions('form', [
+ 'type' => 'string_textfield',
+ 'weight' => -5,
+ ])
+ ->setDisplayConfigurable('form', TRUE)
+ ->setDisplayOptions('view', [
+ 'label' => 'hidden',
+ 'type' => 'string',
+ 'weight' => -5,
+ ])
+ ->setDisplayConfigurable('view', TRUE);
+
+{% endif %}
+{% if status_base_field %}
+ $fields['status'] = BaseFieldDefinition::create('boolean')
+{% if revisionable %}
+ ->setRevisionable(TRUE)
+{% endif %}
+ ->setLabel(t('Status'))
+ ->setDescription(t('A boolean indicating whether the {{ entity_type_label|lower }} is enabled.'))
+ ->setDefaultValue(TRUE)
+ ->setSetting('on_label', 'Enabled')
+ ->setDisplayOptions('form', [
+ 'type' => 'boolean_checkbox',
+ 'settings' => [
+ 'display_label' => FALSE,
+ ],
+ 'weight' => 0,
+ ])
+ ->setDisplayConfigurable('form', TRUE)
+ ->setDisplayOptions('view', [
+ 'type' => 'boolean',
+ 'label' => 'above',
+ 'weight' => 0,
+ 'settings' => [
+ 'format' => 'enabled-disabled',
+ ],
+ ])
+ ->setDisplayConfigurable('view', TRUE);
+
+{% endif %}
+{% if description_base_field %}
+ $fields['description'] = BaseFieldDefinition::create('text_long')
+{% if revisionable %}
+ ->setRevisionable(TRUE)
+{% endif %}
+{% if translatable %}
+ ->setTranslatable(TRUE)
+{% endif %}
+ ->setLabel(t('Description'))
+ ->setDescription(t('A description of the {{ entity_type_label|lower }}.'))
+ ->setDisplayOptions('form', [
+ 'type' => 'text_textarea',
+ 'weight' => 10,
+ ])
+ ->setDisplayConfigurable('form', TRUE)
+ ->setDisplayOptions('view', [
+ 'type' => 'text_default',
+ 'label' => 'above',
+ 'weight' => 10,
+ ])
+ ->setDisplayConfigurable('view', TRUE);
+
+{% endif %}
+{% if author_base_field %}
+ $fields['uid'] = BaseFieldDefinition::create('entity_reference')
+{% if revisionable %}
+ ->setRevisionable(TRUE)
+{% endif %}
+{% if translatable %}
+ ->setTranslatable(TRUE)
+{% endif %}
+ ->setLabel(t('Author'))
+ ->setDescription(t('The user ID of the {{ entity_type_label|lower }} author.'))
+ ->setSetting('target_type', 'user')
+ ->setDisplayOptions('form', [
+ 'type' => 'entity_reference_autocomplete',
+ 'settings' => [
+ 'match_operator' => 'CONTAINS',
+ 'size' => 60,
+ 'placeholder' => '',
+ ],
+ 'weight' => 15,
+ ])
+ ->setDisplayConfigurable('form', TRUE)
+ ->setDisplayOptions('view', [
+ 'label' => 'above',
+ 'type' => 'author',
+ 'weight' => 15,
+ ])
+ ->setDisplayConfigurable('view', TRUE);
+
+{% endif %}
+{% if created_base_field %}
+ $fields['created'] = BaseFieldDefinition::create('created')
+ ->setLabel(t('Authored on'))
+{% if translatable %}
+ ->setTranslatable(TRUE)
+{% endif %}
+ ->setDescription(t('The time that the {{ entity_type_label|lower }} was created.'))
+ ->setDisplayOptions('view', [
+ 'label' => 'above',
+ 'type' => 'timestamp',
+ 'weight' => 20,
+ ])
+ ->setDisplayConfigurable('form', TRUE)
+ ->setDisplayOptions('form', [
+ 'type' => 'datetime_timestamp',
+ 'weight' => 20,
+ ])
+ ->setDisplayConfigurable('view', TRUE);
+
+{% endif %}
+{% if changed_base_field %}
+ $fields['changed'] = BaseFieldDefinition::create('changed')
+ ->setLabel(t('Changed'))
+{% if translatable %}
+ ->setTranslatable(TRUE)
+{% endif %}
+ ->setDescription(t('The time that the {{ entity_type_label|lower }} was last edited.'));
+
+{% endif %}
+ return $fields;
+ }
+
+}