Added Event entity type.

config/schema/oc_event.schema.yml

@@ -0,0 +1,12 @@
+opencase.oc_event.*:
+  type: config_entity
+  label: 'Event config'
+  mapping:
+    id:
+      type: string
+      label: 'ID'
+    label:
+      type: label
+      label: 'Label'
+    uuid:
+      type: string

modules/opencase_entities/config/schema/oc_event.schema.yml

@@ -0,0 +1,12 @@
+opencase_entities.oc_event.*:
+  type: config_entity
+  label: 'Event config'
+  mapping:
+    id:
+      type: string
+      label: 'ID'
+    label:
+      type: label
+      label: 'Label'
+    uuid:
+      type: string

modules/opencase_entities/config/schema/oc_event_type.schema.yml

@@ -0,0 +1,12 @@
+opencase_entities.oc_event_type.*:
+  type: config_entity
+  label: 'Event type config'
+  mapping:
+    id:
+      type: string
+      label: 'ID'
+    label:
+      type: label
+      label: 'Label'
+    uuid:
+      type: string

modules/opencase_entities/oc_event.page.inc

@@ -0,0 +1,30 @@
+<?php
+
+/**
+ * @file
+ * Contains oc_event.page.inc.
+ *
+ * Page callback for Event entities.
+ */
+
+use Drupal\Core\Render\Element;
+
+/**
+ * Prepares variables for Event templates.
+ *
+ * Default template: oc_event.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - elements: An associative array containing the user information and any
+ *   - attributes: HTML attributes for the containing element.
+ */
+function template_preprocess_oc_event(array &$variables) {
+  // Fetch OCEvent Entity Object.
+  $oc_event = $variables['elements']['#oc_event'];
+
+  // Helpful $content variable for templates.
+  foreach (Element::children($variables['elements']) as $key) {
+    $variables['content'][$key] = $variables['elements'][$key];
+  }
+}

modules/opencase_entities/opencase_entities.links.action.yml

@@ -41,3 +41,13 @@ entity.oc_organisation_type.add_form:
   title: 'Add Organisation type'
   appears_on:
     - entity.oc_organisation_type.collection
+entity.oc_event.add_form:
+  route_name: entity.oc_event.add_page
+  title: 'Add Event'
+  appears_on:
+    - entity.oc_event.collection
+entity.oc_event_type.add_form:
+  route_name: entity.oc_event_type.add_form
+  title: 'Add Event type'
+  appears_on:
+    - entity.oc_event_type.collection

modules/opencase_entities/opencase_entities.links.menu.yml

@@ -69,3 +69,20 @@ entity.oc_organisation_type.collection:
   description: 'List Organisation type (bundles)'
   parent: system.admin_structure
   weight: 99
+
+# Event menu items definition
+entity.oc_event.collection:
+  title: 'Event list'
+  route_name: entity.oc_event.collection
+  description: 'List Event entities'
+  parent: system.admin_structure
+  weight: 100
+
+
+# Event type menu items definition
+entity.oc_event_type.collection:
+  title: 'Event type'
+  route_name: entity.oc_event_type.collection
+  description: 'List Event type (bundles)'
+  parent: system.admin_structure
+  weight: 99

modules/opencase_entities/opencase_entities.links.task.yml

@@ -89,3 +89,20 @@ entity.oc_organisation.delete_form:
   base_route:  entity.oc_organisation.canonical
   title: Delete
   weight: 10
+# Event routing definition
+
+entity.oc_event.canonical:
+  route_name: entity.oc_event.canonical
+  base_route: entity.oc_event.canonical
+  title: 'View'
+
+entity.oc_event.edit_form:
+  route_name: entity.oc_event.edit_form
+  base_route: entity.oc_event.canonical
+  title: 'Edit'
+
+entity.oc_event.delete_form:
+  route_name:  entity.oc_event.delete_form
+  base_route:  entity.oc_event.canonical
+  title: Delete
+  weight: 10

modules/opencase_entities/opencase_entities.module

@@ -72,6 +72,16 @@ function opencase_entities_theme() {
     'variables' => ['content' => NULL],
     'file' => 'oc_organisation.page.inc',
   ];
+  $theme['oc_event'] = [
+    'render element' => 'elements',
+    'file' => 'oc_event.page.inc',
+    'template' => 'oc_event',
+  ];
+  $theme['oc_event_content_add_list'] = [
+    'render element' => 'content',
+    'variables' => ['content' => NULL],
+    'file' => 'oc_event.page.inc',
+  ];
   return $theme;
 }
 
@@ -165,3 +175,19 @@ function opencase_entities_theme_suggestions_oc_organisation(array $variables) {
   $suggestions[] = 'oc_organisation__' . $entity->id() . '__' . $sanitized_view_mode;
   return $suggestions;
 }
+
+/**
+ * Implements hook_theme_suggestions_HOOK().
+ */
+function opencase_entities_theme_suggestions_oc_event(array $variables) {
+  $suggestions = [];
+  $entity = $variables['elements']['#oc_event'];
+  $sanitized_view_mode = strtr($variables['elements']['#view_mode'], '.', '_');
+
+  $suggestions[] = 'oc_event__' . $sanitized_view_mode;
+  $suggestions[] = 'oc_event__' . $entity->bundle();
+  $suggestions[] = 'oc_event__' . $entity->bundle() . '__' . $sanitized_view_mode;
+  $suggestions[] = 'oc_event__' . $entity->id();
+  $suggestions[] = 'oc_event__' . $entity->id() . '__' . $sanitized_view_mode;
+  return $suggestions;
+}

modules/opencase_entities/opencase_entities.permissions.yml

@@ -105,3 +105,25 @@ delete all organisation revisions:
 
 permission_callbacks:
   - \Drupal\opencase_entities\OCOrganisationPermissions::generatePermissions
+add event entities:
+  title: 'Create new Event entities'
+
+administer event entities:
+  title: 'Administer Event entities'
+  description: 'Allow to access the administration form to configure Event entities.'
+  restrict access: true
+
+delete event entities:
+  title: 'Delete Event entities'
+
+edit event entities:
+  title: 'Edit Event entities'
+
+view published event entities:
+  title: 'View published Event entities'
+
+view unpublished event entities:
+  title: 'View unpublished Event entities'
+
+permission_callbacks:
+  - \Drupal\opencase_entities\OCEventPermissions::generatePermissions

modules/opencase_entities/src/Entity/OCEvent.php

@@ -0,0 +1,159 @@
+<?php
+
+namespace Drupal\opencase_entities\Entity;
+
+use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\Core\Entity\ContentEntityBase;
+use Drupal\Core\Entity\EntityChangedTrait;
+use Drupal\Core\Entity\EntityPublishedTrait;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\datetime\Plugin\Field\FieldType\DateTimeItem;
+use Drupal\Core\Datetime\DrupalDateTime;
+
+/**
+ * Defines the Event entity.
+ *
+ * @ingroup opencase_entities
+ *
+ * @ContentEntityType(
+ *   id = "oc_event",
+ *   label = @Translation("Event"),
+ *   bundle_label = @Translation("Event type"),
+ *   handlers = {
+ *     "view_builder" = "Drupal\Core\Entity\EntityViewBuilder",
+ *     "list_builder" = "Drupal\opencase_entities\OCEventListBuilder",
+ *     "views_data" = "Drupal\opencase_entities\Entity\OCEventViewsData",
+ *
+ *     "form" = {
+ *       "default" = "Drupal\opencase_entities\Form\OCEventForm",
+ *       "add" = "Drupal\opencase_entities\Form\OCEventForm",
+ *       "edit" = "Drupal\opencase_entities\Form\OCEventForm",
+ *       "delete" = "Drupal\opencase_entities\Form\OCEventDeleteForm",
+ *     },
+ *     "route_provider" = {
+ *       "html" = "Drupal\opencase_entities\OCEventHtmlRouteProvider",
+ *     },
+ *     "access" = "Drupal\opencase_entities\OCEventAccessControlHandler",
+ *   },
+ *   base_table = "oc_event",
+ *   translatable = FALSE,
+ *   permission_granularity = "bundle",
+ *   admin_permission = "administer event entities",
+ *   entity_keys = {
+ *     "id" = "id",
+ *     "bundle" = "type",
+ *     "label" = "name",
+ *     "uuid" = "uuid",
+ *     "langcode" = "langcode",
+ *     "published" = "status",
+ *   },
+ *   links = {
+ *     "canonical" = "/opencase/oc_event/{oc_event}",
+ *     "add-page" = "/opencase/oc_event/add",
+ *     "add-form" = "/opencase/oc_event/add/{oc_event_type}",
+ *     "edit-form" = "/opencase/oc_event/{oc_event}/edit",
+ *     "delete-form" = "/opencase/oc_event/{oc_event}/delete",
+ *     "collection" = "/opencase/oc_event",
+ *   },
+ *   bundle_entity_type = "oc_event_type",
+ *   field_ui_base_route = "entity.oc_event_type.edit_form"
+ * )
+ */
+class OCEvent extends ContentEntityBase implements OCEventInterface {
+
+  use EntityChangedTrait;
+  use EntityPublishedTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getName() {
+    return $this->get('name')->value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setName($name) {
+    $this->set('name', $name);
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCreatedTime() {
+    return $this->get('created')->value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setCreatedTime($timestamp) {
+    $this->set('created', $timestamp);
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
+    $fields = parent::baseFieldDefinitions($entity_type);
+
+    // Add the published field.
+    $fields += static::publishedBaseFieldDefinitions($entity_type);
+
+    $fields['name'] = BaseFieldDefinition::create('string')
+      ->setLabel(t('Name'))
+      ->setDescription(t('The name of the Event entity.'))
+      ->setSettings([
+        'max_length' => 50,
+        '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['status']->setDescription(t('A boolean indicating whether the Event is published.'));
+
+    $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.'));
+
+    $fields['activity_date_time'] = BaseFieldDefinition::create('datetime')
+      ->setLabel(t('Date and time'))
+      ->setRevisionable(TRUE)
+      ->setRequired(TRUE)
+      // Uses the currentDateTime function from the Activity entity
+      ->setDefaultValueCallback('\Drupal\opencase_entities\Entity\OCActivity::currentDateTime')
+      ->setDisplayOptions('view', [
+        'label' => 'above',
+        'type' => 'datetime_default',
+        'settings' => [
+          'format_type' => 'medium',
+        ],
+        'weight' => -3,
+      ])
+      ->setDisplayOptions('form', [
+        'type' => 'datetime_default',
+        'weight' => -3,
+      ]);
+
+    return $fields;
+  }
+
+}

modules/opencase_entities/src/Entity/OCEventInterface.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Drupal\opencase_entities\Entity;
+
+use Drupal\Core\Entity\ContentEntityInterface;
+use Drupal\Core\Entity\EntityChangedInterface;
+use Drupal\Core\Entity\EntityPublishedInterface;
+
+/**
+ * Provides an interface for defining Event entities.
+ *
+ * @ingroup opencase_entities
+ */
+interface OCEventInterface extends ContentEntityInterface, EntityChangedInterface, EntityPublishedInterface {
+
+  /**
+   * Add get/set methods for your configuration properties here.
+   */
+
+  /**
+   * Gets the Event name.
+   *
+   * @return string
+   *   Name of the Event.
+   */
+  public function getName();
+
+  /**
+   * Sets the Event name.
+   *
+   * @param string $name
+   *   The Event name.
+   *
+   * @return \Drupal\opencase_entities\Entity\OCEventInterface
+   *   The called Event entity.
+   */
+  public function setName($name);
+
+  /**
+   * Gets the Event creation timestamp.
+   *
+   * @return int
+   *   Creation timestamp of the Event.
+   */
+  public function getCreatedTime();
+
+  /**
+   * Sets the Event creation timestamp.
+   *
+   * @param int $timestamp
+   *   The Event creation timestamp.
+   *
+   * @return \Drupal\opencase_entities\Entity\OCEventInterface
+   *   The called Event entity.
+   */
+  public function setCreatedTime($timestamp);
+
+}

modules/opencase_entities/src/Entity/OCEventType.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Drupal\opencase_entities\Entity;
+
+use Drupal\Core\Config\Entity\ConfigEntityBundleBase;
+
+/**
+ * Defines the Event type entity.
+ *
+ * @ConfigEntityType(
+ *   id = "oc_event_type",
+ *   label = @Translation("Event type"),
+ *   handlers = {
+ *     "view_builder" = "Drupal\Core\Entity\EntityViewBuilder",
+ *     "list_builder" = "Drupal\opencase_entities\OCEventTypeListBuilder",
+ *     "form" = {
+ *       "add" = "Drupal\opencase_entities\Form\OCEventTypeForm",
+ *       "edit" = "Drupal\opencase_entities\Form\OCEventTypeForm",
+ *       "delete" = "Drupal\opencase_entities\Form\OCEventTypeDeleteForm"
+ *     },
+ *     "route_provider" = {
+ *       "html" = "Drupal\opencase_entities\OCEventTypeHtmlRouteProvider",
+ *     },
+ *   },
+ *   config_prefix = "oc_event_type",
+ *   admin_permission = "administer site configuration",
+ *   bundle_of = "oc_event",
+ *   entity_keys = {
+ *     "id" = "id",
+ *     "label" = "label",
+ *     "uuid" = "uuid"
+ *   },
+ *   links = {
+ *     "canonical" = "/admin/opencase/oc_event_type/{oc_event_type}",
+ *     "add-form" = "/admin/opencase/oc_event_type/add",
+ *     "edit-form" = "/admin/opencase/oc_event_type/{oc_event_type}/edit",
+ *     "delete-form" = "/admin/opencase/oc_event_type/{oc_event_type}/delete",
+ *     "collection" = "/admin/opencase/oc_event_type"
+ *   }
+ * )
+ */
+class OCEventType extends ConfigEntityBundleBase implements OCEventTypeInterface {
+
+  /**
+   * The Event type ID.
+   *
+   * @var string
+   */
+  protected $id;
+
+  /**
+   * The Event type label.
+   *
+   * @var string
+   */
+  protected $label;
+
+}

modules/opencase_entities/src/Entity/OCEventTypeInterface.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Drupal\opencase_entities\Entity;
+
+use Drupal\Core\Config\Entity\ConfigEntityInterface;
+
+/**
+ * Provides an interface for defining Event type entities.
+ */
+interface OCEventTypeInterface extends ConfigEntityInterface {
+
+  // Add get/set methods for your configuration properties here.
+}

modules/opencase_entities/src/Entity/OCEventViewsData.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Drupal\opencase_entities\Entity;
+
+use Drupal\views\EntityViewsData;
+
+/**
+ * Provides Views data for Event entities.
+ */
+class OCEventViewsData extends EntityViewsData {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getViewsData() {
+    $data = parent::getViewsData();
+
+    // Additional information for Views integration, such as table joins, can be
+    // put here.
+    return $data;
+  }
+
+}

modules/opencase_entities/src/Form/OCEventDeleteForm.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Drupal\opencase_entities\Form;
+
+use Drupal\Core\Entity\ContentEntityDeleteForm;
+
+/**
+ * Provides a form for deleting Event entities.
+ *
+ * @ingroup opencase_entities
+ */
+class OCEventDeleteForm extends ContentEntityDeleteForm {
+
+
+}

modules/opencase_entities/src/Form/OCEventForm.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Drupal\opencase_entities\Form;
+
+use Drupal\Core\Entity\ContentEntityForm;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Form controller for Event edit forms.
+ *
+ * @ingroup opencase_entities
+ */
+class OCEventForm extends ContentEntityForm {
+
+  /**
+   * The current user account.
+   *
+   * @var \Drupal\Core\Session\AccountProxyInterface
+   */
+  protected $account;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    // Instantiates this form class.
+    $instance = parent::create($container);
+    $instance->account = $container->get('current_user');
+    return $instance;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    /* @var \Drupal\opencase_entities\Entity\OCEvent $entity */
+    $form = parent::buildForm($form, $form_state);
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    $entity = $this->entity;
+
+    $status = parent::save($form, $form_state);
+
+    switch ($status) {
+      case SAVED_NEW:
+        $this->messenger()->addMessage($this->t('Created the %label Event.', [
+          '%label' => $entity->label(),
+        ]));
+        break;
+
+      default:
+        $this->messenger()->addMessage($this->t('Saved the %label Event.', [
+          '%label' => $entity->label(),
+        ]));
+    }
+    $form_state->setRedirect('entity.oc_event.canonical', ['oc_event' => $entity->id()]);
+  }
+
+}

modules/opencase_entities/src/Form/OCEventSettingsForm.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Drupal\opencase_entities\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Class OCEventSettingsForm.
+ *
+ * @ingroup opencase_entities
+ */
+class OCEventSettingsForm extends FormBase {
+
+  /**
+   * Returns a unique string identifying the form.
+   *
+   * @return string
+   *   The unique string identifying the form.
+   */
+  public function getFormId() {
+    return 'ocevent_settings';
+  }
+
+  /**
+   * Form submission handler.
+   *
+   * @param array $form
+   *   An associative array containing the structure of the form.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The current state of the form.
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    // Empty implementation of the abstract submit class.
+  }
+
+  /**
+   * Defines the settings form for Event entities.
+   *
+   * @param array $form
+   *   An associative array containing the structure of the form.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The current state of the form.
+   *
+   * @return array
+   *   Form definition array.
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $form['ocevent_settings']['#markup'] = 'Settings form for Event entities. Manage field settings here.';
+    return $form;
+  }
+
+}

modules/opencase_entities/src/Form/OCEventTypeDeleteForm.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Drupal\opencase_entities\Form;
+
+use Drupal\Core\Entity\EntityConfirmFormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+
+/**
+ * Builds the form to delete Event type entities.
+ */
+class OCEventTypeDeleteForm extends EntityConfirmFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getQuestion() {
+    return $this->t('Are you sure you want to delete %name?', ['%name' => $this->entity->label()]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCancelUrl() {
+    return new Url('entity.oc_event_type.collection');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConfirmText() {
+    return $this->t('Delete');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    $this->entity->delete();
+
+    $this->messenger()->addMessage(
+      $this->t('content @type: deleted @label.', [
+        '@type' => $this->entity->bundle(),
+        '@label' => $this->entity->label(),
+      ])
+    );
+
+    $form_state->setRedirectUrl($this->getCancelUrl());
+  }
+
+}

modules/opencase_entities/src/Form/OCEventTypeForm.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Drupal\opencase_entities\Form;
+
+use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Class OCEventTypeForm.
+ */
+class OCEventTypeForm extends EntityForm {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $form = parent::form($form, $form_state);
+
+    $oc_event_type = $this->entity;
+    $form['label'] = [
+      '#type' => 'textfield',
+      '#title' => $this->t('Label'),
+      '#maxlength' => 255,
+      '#default_value' => $oc_event_type->label(),
+      '#description' => $this->t("Label for the Event type."),
+      '#required' => TRUE,
+    ];
+
+    $form['id'] = [
+      '#type' => 'machine_name',
+      '#default_value' => $oc_event_type->id(),
+      '#machine_name' => [
+        'exists' => '\Drupal\opencase_entities\Entity\OCEventType::load',
+      ],
+      '#disabled' => !$oc_event_type->isNew(),
+    ];
+
+    /* You will need additional form elements for your custom properties. */
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    $oc_event_type = $this->entity;
+    $status = $oc_event_type->save();
+
+    switch ($status) {
+      case SAVED_NEW:
+        $this->messenger()->addMessage($this->t('Created the %label Event type.', [
+          '%label' => $oc_event_type->label(),
+        ]));
+        break;
+
+      default:
+        $this->messenger()->addMessage($this->t('Saved the %label Event type.', [
+          '%label' => $oc_event_type->label(),
+        ]));
+    }
+    $form_state->setRedirectUrl($oc_event_type->toUrl('collection'));
+  }
+
+}

modules/opencase_entities/src/OCEventAccessControlHandler.php

@@ -0,0 +1,116 @@
+<?php
+
+namespace Drupal\opencase_entities;
+
+use Drupal\Core\Entity\EntityAccessControlHandler;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\Access\AccessResult;
+
+/**
+ * Access controller for the Event entity.
+ *
+ * @see \Drupal\opencase_entities\Entity\OCEvent.
+ */
+class OCEventAccessControlHandler extends EntityAccessControlHandler {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
+    /** @var \Drupal\opencase_entities\Entity\OCEventInterface $entity */
+
+    switch ($operation) {
+
+      case 'view':
+
+        if (!$entity->isPublished()) {
+          $permission = $this->checkOwn($entity, 'view unpublished', $account);
+          if (!empty($permission)) {
+            return AccessResult::allowed();
+          }
+
+          return AccessResult::allowedIfHasPermission($account, 'view unpublished event entities');
+        }
+
+        $permission = $this->checkOwn($entity, $operation, $account);
+        if (!empty($permission)) {
+          return AccessResult::allowed();
+        }
+
+        return AccessResult::allowedIfHasPermission($account, 'view published event entities');
+
+      case 'update':
+
+        $permission = $this->checkOwn($entity, $operation, $account);
+        if (!empty($permission)) {
+          return AccessResult::allowed();
+        }
+        return AccessResult::allowedIfHasPermission($account, 'edit event entities');
+
+      case 'delete':
+
+        $permission = $this->checkOwn($entity, $operation, $account);
+        if (!empty($permission)) {
+          return AccessResult::allowed();
+        }
+        return AccessResult::allowedIfHasPermission($account, 'delete event entities');
+    }
+
+    // Unknown operation, no opinion.
+    return AccessResult::neutral();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
+    return AccessResult::allowedIfHasPermission($account, 'add event entities');
+  }
+
+  /**
+   * Test for given 'own' permission.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   * @param $operation
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *
+   * @return string|null
+   *   The permission string indicating it's allowed.
+   */
+  protected function checkOwn(EntityInterface $entity, $operation, AccountInterface $account) {
+    $status = $entity->isPublished();
+    $uid = $entity->getOwnerId();
+
+    $is_own = $account->isAuthenticated() && $account->id() == $uid;
+    if (!$is_own) {
+      return;
+    }
+
+    $bundle = $entity->bundle();
+
+    $ops = [
+      'create' => '%bundle add own %bundle entities',
+      'view unpublished' => '%bundle view own unpublished %bundle entities',
+      'view' => '%bundle view own entities',
+      'update' => '%bundle edit own entities',
+      'delete' => '%bundle delete own entities',
+    ];
+    $permission = strtr($ops[$operation], ['%bundle' => $bundle]);
+
+    if ($operation === 'view unpublished') {
+      if (!$status && $account->hasPermission($permission)) {
+        return $permission;
+      }
+      else {
+        return NULL;
+      }
+    }
+    if ($account->hasPermission($permission)) {
+      return $permission;
+    }
+
+    return NULL;
+  }
+
+}

modules/opencase_entities/src/OCEventHtmlRouteProvider.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Drupal\opencase_entities;
+
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\Routing\AdminHtmlRouteProvider;
+use Symfony\Component\Routing\Route;
+
+/**
+ * Provides routes for Event entities.
+ *
+ * @see \Drupal\Core\Entity\Routing\AdminHtmlRouteProvider
+ * @see \Drupal\Core\Entity\Routing\DefaultHtmlRouteProvider
+ */
+class OCEventHtmlRouteProvider extends AdminHtmlRouteProvider {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRoutes(EntityTypeInterface $entity_type) {
+    $collection = parent::getRoutes($entity_type);
+
+    $entity_type_id = $entity_type->id();
+
+    if ($settings_form_route = $this->getSettingsFormRoute($entity_type)) {
+      $collection->add("$entity_type_id.settings", $settings_form_route);
+    }
+
+    return $collection;
+  }
+
+  /**
+   * Gets the settings form route.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+   *   The entity type.
+   *
+   * @return \Symfony\Component\Routing\Route|null
+   *   The generated route, if available.
+   */
+  protected function getSettingsFormRoute(EntityTypeInterface $entity_type) {
+    if (!$entity_type->getBundleEntityType()) {
+      $route = new Route("/admin/structure/{$entity_type->id()}/settings");
+      $route
+        ->setDefaults([
+          '_form' => 'Drupal\opencase_entities\Form\OCEventSettingsForm',
+          '_title' => "{$entity_type->getLabel()} settings",
+        ])
+        ->setRequirement('_permission', $entity_type->getAdminPermission())
+        ->setOption('_admin_route', TRUE);
+
+      return $route;
+    }
+  }
+
+}

modules/opencase_entities/src/OCEventListBuilder.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Drupal\opencase_entities;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityListBuilder;
+use Drupal\Core\Link;
+
+/**
+ * Defines a class to build a listing of Event entities.
+ *
+ * @ingroup opencase_entities
+ */
+class OCEventListBuilder extends EntityListBuilder {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildHeader() {
+    $header['id'] = $this->t('Event ID');
+    $header['name'] = $this->t('Name');
+    return $header + parent::buildHeader();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildRow(EntityInterface $entity) {
+    /* @var \Drupal\opencase_entities\Entity\OCEvent $entity */
+    $row['id'] = $entity->id();
+    $row['name'] = Link::createFromRoute(
+      $entity->label(),
+      'entity.oc_event.edit_form',
+      ['oc_event' => $entity->id()]
+    );
+    return $row + parent::buildRow($entity);
+  }
+
+}

modules/opencase_entities/src/OCEventPermissions.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace Drupal\opencase_entities;
+
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\opencase_entities\Entity\OCEvent;
+
+
+/**
+ * Provides dynamic permissions for Event of different types.
+ *
+ * @ingroup opencase_entities
+ *
+ */
+class OCEventPermissions{
+
+  use StringTranslationTrait;
+
+  /**
+   * Returns an array of node type permissions.
+   *
+   * @return array
+   *   The OCEvent by bundle permissions.
+   *   @see \Drupal\user\PermissionHandlerInterface::getPermissions()
+   */
+  public function generatePermissions() {
+    $perms = [];
+
+    foreach (OCEvent::loadMultiple() as $type) {
+      $perms += $this->buildPermissions($type);
+    }
+
+    return $perms;
+  }
+
+  /**
+   * Returns a list of node permissions for a given node type.
+   *
+   * @param \Drupal\opencase_entities\Entity\OCEvent $type
+   *   The OCEvent type.
+   *
+   * @return array
+   *   An associative array of permission names and descriptions.
+   */
+  protected function buildPermissions(OCEvent $type) {
+    $type_id = $type->id();
+    $type_params = ['%type_name' => $type->label()];
+
+    return [
+      "$type_id create entities" => [
+        'title' => $this->t('Create new %type_name entities', $type_params),
+      ],
+      "$type_id edit own entities" => [
+        'title' => $this->t('Edit own %type_name entities', $type_params),
+      ],
+      "$type_id edit any entities" => [
+        'title' => $this->t('Edit any %type_name entities', $type_params),
+      ],
+      "$type_id delete own entities" => [
+        'title' => $this->t('Delete own %type_name entities', $type_params),
+      ],
+      "$type_id delete any entities" => [
+        'title' => $this->t('Delete any %type_name entities', $type_params),
+      ],
+    ];
+  }
+
+}

modules/opencase_entities/src/OCEventTypeHtmlRouteProvider.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Drupal\opencase_entities;
+
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\Routing\AdminHtmlRouteProvider;
+
+/**
+ * Provides routes for Event type entities.
+ *
+ * @see Drupal\Core\Entity\Routing\AdminHtmlRouteProvider
+ * @see Drupal\Core\Entity\Routing\DefaultHtmlRouteProvider
+ */
+class OCEventTypeHtmlRouteProvider extends AdminHtmlRouteProvider {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRoutes(EntityTypeInterface $entity_type) {
+    $collection = parent::getRoutes($entity_type);
+
+    // Provide your custom entity routes here.
+    return $collection;
+  }
+
+}

modules/opencase_entities/src/OCEventTypeListBuilder.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Drupal\opencase_entities;
+
+use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Provides a listing of Event type entities.
+ */
+class OCEventTypeListBuilder extends ConfigEntityListBuilder {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildHeader() {
+    $header['label'] = $this->t('Event type');
+    $header['id'] = $this->t('Machine name');
+    return $header + parent::buildHeader();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildRow(EntityInterface $entity) {
+    $row['label'] = $entity->label();
+    $row['id'] = $entity->id();
+    // You probably want a few more properties here...
+    return $row + parent::buildRow($entity);
+  }
+
+}

modules/opencase_entities/templates/oc-event-content-add-list.html.twig

@@ -0,0 +1,23 @@
+{#
+/**
+ * @file
+ * Default theme implementation to present a list of custom content entity types/bundles.
+ *
+ * Available variables:
+ * - types: A collection of all the available custom entity types/bundles.
+ *   Each type/bundle contains the following:
+ *   - link: A link to add a content entity of this type.
+ *   - description: A description of this content entity types/bundle.
+ *
+ * @see template_preprocess_oc_event_content_add_list()
+ *
+ * @ingroup themeable
+ */
+#}
+{% spaceless %}
+  <dl>
+    {% for type in types %}
+      <dt>{{ type.link }}</dt>
+    {% endfor %}
+  </dl>
+{% endspaceless %}

modules/opencase_entities/templates/oc_event.html.twig

@@ -0,0 +1,22 @@
+{#
+/**
+ * @file oc_event.html.twig
+ * Default theme implementation to present Event data.
+ *
+ * This template is used when viewing Event pages.
+ *
+ *
+ * Available variables:
+ * - content: A list of content items. Use 'content' to print all content, or
+ * - attributes: HTML attributes for the container element.
+ *
+ * @see template_preprocess_oc_event()
+ *
+ * @ingroup themeable
+ */
+#}
+<div{{ attributes.addClass('oc_event') }}>
+  {% if content %}
+    {{- content -}}
+  {% endif %}
+</div>

opencase.links.action.yml

@@ -0,0 +1,5 @@
+entity.oc_event.add_form:
+  route_name: entity.oc_event.add_form
+  title: 'Add Event'
+  appears_on:
+    - entity.oc_event.collection

opencase.links.menu.yml

@@ -18,6 +18,11 @@ opencase.add_organisations_links:
   deriver: Drupal\opencase\Plugin\Derivative\AddOrganisationsMenuLink
   menu_name: opencase
   parent: opencase.opencase_add_new_things_menu
+opencase.add_events_links:
+  class: Drupal\opencase\Plugin\Menu\AddEventsMenuLink
+  deriver: Drupal\opencase\Plugin\Derivative\AddEventsMenuLink
+  menu_name: opencase
+  parent: opencase.opencase_add_new_things_menu
 opencase.opencase_admin_menu:
   title: 'Administration'
   description: 'Management and Configuration'
@@ -59,6 +64,13 @@ opencase.manage_activity_types:
   parent: opencase.opencase_admin_menu 
   url: internal:/admin/opencase/oc_activity_type
   weight: 3
+opencase.manage_event_types:
+  title: 'Manage event types'
+  description: 'Configure types of people and their fields'
+  menu_name: opencase
+  parent: opencase.opencase_admin_menu 
+  url: internal:/admin/opencase/oc_event_type
+  weight: 1
 
 opencase.opencase_support_menu:
   title: 'Support'

src/Form/OCEventDeleteForm.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Drupal\opencase\Form;
+
+use Drupal\Core\Entity\EntityConfirmFormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+
+/**
+ * Builds the form to delete Event entities.
+ */
+class OCEventDeleteForm extends EntityConfirmFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getQuestion() {
+    return $this->t('Are you sure you want to delete %name?', ['%name' => $this->entity->label()]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCancelUrl() {
+    return new Url('entity.oc_event.collection');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConfirmText() {
+    return $this->t('Delete');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    $this->entity->delete();
+
+    $this->messenger()->addMessage(
+      $this->t('content @type: deleted @label.', [
+        '@type' => $this->entity->bundle(),
+        '@label' => $this->entity->label(),
+      ])
+    );
+
+    $form_state->setRedirectUrl($this->getCancelUrl());
+  }
+
+}

src/Form/OCEventForm.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Drupal\opencase\Form;
+
+use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Class OCEventForm.
+ */
+class OCEventForm extends EntityForm {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $form = parent::form($form, $form_state);
+
+    $oc_event = $this->entity;
+    $form['label'] = [
+      '#type' => 'textfield',
+      '#title' => $this->t('Label'),
+      '#maxlength' => 255,
+      '#default_value' => $oc_event->label(),
+      '#description' => $this->t("Label for the Event."),
+      '#required' => TRUE,
+    ];
+
+    $form['id'] = [
+      '#type' => 'machine_name',
+      '#default_value' => $oc_event->id(),
+      '#machine_name' => [
+        'exists' => '\Drupal\opencase\Entity\OCEvent::load',
+      ],
+      '#disabled' => !$oc_event->isNew(),
+    ];
+
+    /* You will need additional form elements for your custom properties. */
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    $oc_event = $this->entity;
+    $status = $oc_event->save();
+
+    switch ($status) {
+      case SAVED_NEW:
+        $this->messenger()->addMessage($this->t('Created the %label Event.', [
+          '%label' => $oc_event->label(),
+        ]));
+        break;
+
+      default:
+        $this->messenger()->addMessage($this->t('Saved the %label Event.', [
+          '%label' => $oc_event->label(),
+        ]));
+    }
+    $form_state->setRedirectUrl($oc_event->toUrl('collection'));
+  }
+
+}

src/OCEventHtmlRouteProvider.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Drupal\opencase;
+
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\Routing\AdminHtmlRouteProvider;
+
+/**
+ * Provides routes for Event entities.
+ *
+ * @see Drupal\Core\Entity\Routing\AdminHtmlRouteProvider
+ * @see Drupal\Core\Entity\Routing\DefaultHtmlRouteProvider
+ */
+class OCEventHtmlRouteProvider extends AdminHtmlRouteProvider {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRoutes(EntityTypeInterface $entity_type) {
+    $collection = parent::getRoutes($entity_type);
+
+    // Provide your custom entity routes here.
+    return $collection;
+  }
+
+}

src/OCEventListBuilder.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Drupal\opencase;
+
+use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Provides a listing of Event entities.
+ */
+class OCEventListBuilder extends ConfigEntityListBuilder {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildHeader() {
+    $header['label'] = $this->t('Event');
+    $header['id'] = $this->t('Machine name');
+    return $header + parent::buildHeader();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildRow(EntityInterface $entity) {
+    $row['label'] = $entity->label();
+    $row['id'] = $entity->id();
+    // You probably want a few more properties here...
+    return $row + parent::buildRow($entity);
+  }
+
+}

src/Plugin/Derivative/AddEventsMenuLink.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace Drupal\opencase\Plugin\Derivative;
+
+use Drupal\Component\Plugin\Derivative\DeriverBase;
+use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Derivative class that provides the menu links adding various types of events
+ */
+class AddEventsMenuLink extends DeriverBase implements ContainerDeriverInterface {
+
+  /**
+   * @var EntityTypeManagerInterface $entityTypeManager.
+   */
+
+  protected $entityTypeManager;
+  
+  /**
+   * Creates a AddEventsMenuLink instance.
+   *
+   * @param $base_plugin_id
+   * @param EntityTypeManagerInterface $entity_type_manager
+   */
+  public function __construct($base_plugin_id, EntityTypeManagerInterface $entity_type_manager) {
+    $this->entityTypeManager = $entity_type_manager;
+  }
+
+ /**
+   * {@inheritdoc}
+   */
+ public static function create(ContainerInterface $container, $base_plugin_id) {
+   return new static(
+    $base_plugin_id,
+    $container->get('entity_type.manager')
+   );
+ }
+  /**
+   * {@inheritdoc}
+   */
+  public function getDerivativeDefinitions($base_plugin_definition) {
+    $links = [];
+    $eventTypes = $this->entityTypeManager->getStorage('oc_event_type')->loadMultiple();
+    foreach ($eventTypes as $id => $eventType) {
+      $links[$id] = [
+        'title' => "Add ". $eventType->label() . " Event",
+        'route_name' => "entity.oc_event.add_form",
+        'route_parameters' => ['oc_event_type' => $eventType->id()]
+      ] + $base_plugin_definition;
+    }
+    return $links;
+  }
+}

src/Plugin/Menu/AddEventsMenuLink.php

@@ -0,0 +1,6 @@
+<?php
+namespace Drupal\opencase\Plugin\Menu;
+ 
+use Drupal\Core\Menu\MenuLinkDefault;
+ 
+class AddEventsMenuLink extends MenuLinkDefault {}