moved entity type relations widget into opencase_defaults

modules/opencase_defaults/opencase_defaults.module

@@ -8,6 +8,7 @@
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\user\Entity\Role;
 use Drupal\user\RoleInterface;
+use Drupal\opencase\EntityTypeRelationsWidget;
 
 /**
  * Implements hook_help().
@@ -146,3 +147,21 @@ function opencase_defaults_actors_involved_callback() {
   return array_unique([$currently_viewed_actor_id, $author_linked_actor_id]);
 }
 
+/**
+ * Implements hook_form_ID_alter
+ */
+function opencase_defaults_form_oc_case_type_add_form_alter(&$form, $form_state) {
+  $widget = new EntityTypeRelationsWidget();
+  $widget->setup($form);
+}
+
+
+/**
+ * Implements hook_form_ID_alter
+ */
+function opencase_defaults_form_oc_case_type_edit_form_alter(&$form, $form_state) {
+  $widget = new EntityTypeRelationsWidget();
+  $widget->setup($form);
+  $widget->populate($form);
+}
+

modules/opencase_defaults/src/EntityTypeRelations.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Drupal\opencase;
+
+/**
+ * Stuff to do with the relationship of case types to actor types, and activity types to case types
+ *
+ */
+class EntityTypeRelations {
+
+
+  public static function getAllowedActorTypesForCaseType($case_type) {
+    $base_field_override = \Drupal\Core\Field\Entity\BaseFieldOverride::load("oc_case.$case_type.actors_involved");
+    $allowedActorTypes = array();
+    if ($base_field_override) { 
+      $allowedActorTypes =  $base_field_override->getSettings()['handler_settings']['target_bundles'];
+    }
+    return $allowedActorTypes; // // format: ['volunteer' => 0, 'client' => 'client'] 
+  }
+
+  public static function getAllowedActivityTypesForCaseType($case_type) {
+    $caseTypeConfig = \Drupal::entityTypeManager()->getStorage('oc_case_type')->load($case_type);
+    $allowedActivityTypes = $caseTypeConfig->get('allowedActivityTypes');  // format: ['application' => 'application', 'interview' => 0]
+    if (!$allowedActivityTypes) $allowedActivityTypes = array();
+    return $allowedActivityTypes;
+  }    
+}

modules/opencase_defaults/src/EntityTypeRelationsWidget.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Drupal\opencase;
+
+/**
+ * Manages GUI for configuring relations between case types and actor types, or activity types and case types 
+ *
+ */
+class EntityTypeRelationsWidget {
+
+  /**
+   * Adds actor type and activity type checkboxes to the case type form, and adds the submit handler
+   *
+   * $form - the form to be modified (reference)
+   */ 
+  public function setup(&$form) {
+    $actor_types = \Drupal::service('entity_type.bundle.info')->getBundleInfo('oc_actor');
+    $options = array();
+    foreach($actor_types as $machine_name => $info) {
+      $options[$machine_name] = $info['label'];
+    }
+    $form['allowed_actor_types'] = array(
+      '#title' => t('Allowed involved parties'),
+      '#description' => t('Types of people that can be involved in this kind of case.'),
+      '#type' => 'checkboxes',
+      '#options' => $options
+    );
+    $activity_types = \Drupal::service('entity_type.bundle.info')->getBundleInfo('oc_activity');
+    $options = array();
+    foreach($activity_types as $machine_name => $info) {
+      $options[$machine_name] = $info['label'];
+    }
+    $form['allowed_activity_types'] = array(
+      '#title' => t('Activity types'),
+      '#description' => t('Types of activities that can be logged against this case.'),
+      '#type' => 'checkboxes',
+      '#options' => $options
+    );
+    $form['actions']['submit']['#submit'][] = array($this, 'submit');
+  }
+
+  /**
+   * Populates the form with actor/activity types that are already set
+   *
+   * $form - the form to be modified (reference)
+   */ 
+  public function populate(&$form) {
+    $case_type = $form['id']['#default_value'];
+    $allowedActorTypes = EntityTypeRelations::getAllowedActorTypesForCaseType($case_type); 
+    $form['allowed_actor_types']['#default_value'] = $allowedActorTypes;
+    $allowedActivityTypes = EntityTypeRelations::getAllowedActivityTypesForCaseType($case_type); 
+    $form['allowed_activity_types']['#default_value'] = $allowedActivityTypes;
+  }
+  
+  /**
+   * Submit callback which takes the data from the actor types and activity types fields and
+   * creates/edits the relevant config objects
+   *
+   * $form - the form that is being submitted
+   * $form_state - the data in the form
+   */ 
+  public function submit($form, $form_state) {
+    $case_type_machine_name = $form['id']['#default_value'] ? $form['id']['#default_value'] : $form_state->getValue('id');
+    $base_field_override = \Drupal\Core\Field\Entity\BaseFieldOverride::load("oc_case.$case_type_machine_name.actors_involved");
+    if (!$base_field_override) {
+      $entity_fields = \Drupal::service('entity_field.manager')->getBaseFieldDefinitions('oc_case');
+      $field_definition = $entity_fields['actors_involved'];
+      $base_field_override = \Drupal\Core\field\Entity\BaseFieldOverride::createFromBaseFieldDefinition($field_definition, $case_type_machine_name);
+    }
+    $base_field_override->setSetting('handler_settings', ['target_bundles' => $form_state->getValue('allowed_actor_types')]);
+    $base_field_override->save();
+    $caseTypeConfig = \Drupal::entityTypeManager()->getStorage('oc_case_type')->load($case_type_machine_name);
+    $caseTypeConfig->set('allowedActivityTypes', $form_state->getValue('allowed_activity_types'));
+    $caseTypeConfig->save();
+  }
+}