Set default settings (#138)

config/install/islandora.settings.yml

@@ -0,0 +1,4 @@
+broker_url: 'tcp://localhost:61613'
+jwt_expiry: '+2 hour'
+gemini_url: ''
+gemini_pseudo_bundles: []

islandora.module

@@ -356,7 +356,7 @@ function islandora_entity_extra_field_info() {
   $config_factory = \Drupal::service('config.factory')->get(IslandoraSettingsForm::CONFIG_NAME);
   $extra_field = [];
 
-  $pseudo_bundles = $config_factory->get(IslandoraSettingsForm::GEMINI_PSEUDO) ? $config_factory->get(IslandoraSettingsForm::GEMINI_PSEUDO) : [];
+  $pseudo_bundles = $config_factory->get(IslandoraSettingsForm::GEMINI_PSEUDO);
 
   foreach ($pseudo_bundles as $key) {
     list($bundle, $content_entity) = explode(":", $key);

src/Form/IslandoraSettingsForm.php

@@ -80,22 +80,22 @@ class IslandoraSettingsForm extends ConfigFormBase {
     $form[self::BROKER_URL] = [
       '#type' => 'textfield',
       '#title' => $this->t('Broker URL'),
-      '#default_value' => $config->get(self::BROKER_URL) ? $config->get(self::BROKER_URL) : 'tcp://localhost:61613',
+      '#default_value' => $config->get(self::BROKER_URL),
     ];
 
     $form[self::JWT_EXPIRY] = [
       '#type' => 'textfield',
       '#title' => $this->t('JWT Expiry'),
-      '#default_value' => $config->get(self::JWT_EXPIRY) ? $config->get(self::JWT_EXPIRY) : '+2 hour',
+      '#default_value' => $config->get(self::JWT_EXPIRY),
     ];
 
     $form[self::GEMINI_URL] = [
       '#type' => 'textfield',
       '#title' => $this->t('Gemini URL'),
-      '#default_value' => $config->get(self::GEMINI_URL) ? $config->get(self::GEMINI_URL) : '',
+      '#default_value' => $config->get(self::GEMINI_URL),
     ];
 
-    $selected_bundles = $config->get(self::GEMINI_PSEUDO) ? $config->get(self::GEMINI_PSEUDO) : [];
+    $selected_bundles = $config->get(self::GEMINI_PSEUDO);
 
     $options = [];
     foreach (['node', 'media', 'taxonomy_term'] as $content_entity) {