CTDA9-404: Avoid warning

config/install/search_api_solr.solr_field_type.islandora_hocr_und_7_0_0.yml

@@ -1,11 +1,11 @@
 langcode: en
 status: true
 dependencies:
+  config:
+    - search_api_solr.solr_field_type.text_und_7_0_0
   module:
     - search_api_solr
     - islandora_hocr
-  config:
-    - search_api_solr.solr_field_type.text_und_7_0_0
 id: islandora_hocr_und_7_0_0
 label: 'Language Undefined hOCR Field'
 minimum_solr_version: 7.0.0
@@ -15,7 +15,6 @@ domains: {}
 field_type:
   name: islandora_hocr_und
   class: solr.TextField
-  storeOffsetsWithPositions: true
   analyzers:
     -
       type: index
@@ -61,9 +60,9 @@ field_type:
       filters:
         -
           class: solr.SynonymGraphFilterFactory
+          ignoreCase: true
           synonyms: synonyms_und.txt
           expand: true
-          ignoreCase: true
         -
           class: solr.StopFilterFactory
           ignoreCase: true
@@ -86,4 +85,9 @@ field_type:
           class: solr.LowerCaseFilterFactory
         -
           class: solr.RemoveDuplicatesTokenFilterFactory
+  storeOffsetsWithPositions: true
+unstemmed_field_type: null
+spellcheck_field_type: null
+collated_field_type: null
 solr_configs: null
+text_files: {  }

config/install/search_api_solr.solr_request_handler.request_handler_select_islandora_hocr_7_0_0.yml

@@ -1,10 +1,10 @@
 langcode: en
 status: true
 dependencies:
-  module:
-    - islandora_hocr
   config:
     - search_api_solr.solr_field_type.islandora_hocr_und_7_0_0
+  module:
+    - islandora_hocr
 id: request_handler_select_islandora_hocr_7_0_0
 label: Select w/ OCR Highlighting Component
 minimum_solr_version: 7.0.0

islandora_hocr.post_update.php

@@ -27,3 +27,18 @@ function islandora_hocr_post_update_install_initial_entities() {
   }
 
 }
+
+/**
+ * Ensure `text_files` is not null.
+ *
+ * When Drupal initializes it, it would give it null, despite being not
+ * null. Giving it an empty map seems to do the trick.
+ */
+function islandora_hocr_post_update_ensure_field_type_has_empty_map() {
+  $config = \Drupal::configFactory()->getEditable('search_api_solr.solr_field_type.islandora_hocr_und_7_0_0');
+  $value = $config->get('text_files');
+  if ($value === NULL) {
+    $config->set('text_files', [])
+      ->save(TRUE);
+  }
+}