Search Index: Fixed SQL error when indexing large pages

Due to hitting statement placeholder limits (typically 65k)
when inserting index terms for single page.

Added test to cover.
Also added skipped tests for tests we don't always want to run.
For #5322

app/Search/SearchIndex.php

@@ -30,7 +30,7 @@ public function indexEntity(Entity $entity): void
     {
         $this->deleteEntityTerms($entity);
         $terms = $this->entityToTermDataArray($entity);
-        SearchTerm::query()->insert($terms);
+        $this->insertTerms($terms);
     }
 
     /**
@@ -46,10 +46,7 @@ public function indexEntities(array $entities): void
             array_push($terms, ...$entityTerms);
         }
 
-        $chunkedTerms = array_chunk($terms, 500);
-        foreach ($chunkedTerms as $termChunk) {
-            SearchTerm::query()->insert($termChunk);
-        }
+        $this->insertTerms($terms);
     }
 
     /**
@@ -99,6 +96,19 @@ public function deleteEntityTerms(Entity $entity): void
         $entity->searchTerms()->delete();
     }
 
+    /**
+     * Insert the given terms into the database.
+     * Chunks through the given terms to remain within database limits.
+     * @param array[] $terms
+     */
+    protected function insertTerms(array $terms): void
+    {
+        $chunkedTerms = array_chunk($terms, 500);
+        foreach ($chunkedTerms as $termChunk) {
+            SearchTerm::query()->insert($termChunk);
+        }
+    }
+
     /**
      * Create a scored term array from the given text, where the keys are the terms
      * and the values are their scores.

tests/Entity/EntitySearchTest.php

@@ -6,6 +6,7 @@
 use BookStack\Entities\Models\Book;
 use BookStack\Entities\Models\Bookshelf;
 use BookStack\Entities\Models\Chapter;
+use Illuminate\Support\Str;
 use Tests\TestCase;
 
 class EntitySearchTest extends TestCase
@@ -477,6 +478,25 @@ public function test_terms_in_headers_have_an_adjusted_index_score()
         $this->assertEquals(2, $scoreByTerm->get('TermG'));
     }
 
+    public function test_indexing_works_as_expected_for_page_with_lots_of_terms()
+    {
+        $this->markTestSkipped('Time consuming test');
+
+        $count = 100000;
+        $text = '';
+        $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_#';
+        for ($i = 0; $i < $count; $i++) {
+            $text .= substr(str_shuffle($chars), 0, 5) . ' ';
+        }
+
+        $page = $this->entities->newPage(['name' => 'Test page A', 'html' => '<p>' . $text . '</p>']);
+
+        $termCount = $page->searchTerms()->count();
+
+        // Expect at least 90% unique rate
+        $this->assertGreaterThan($count * 0.9, $termCount);
+    }
+
     public function test_name_and_content_terms_are_merged_to_single_score()
     {
         $page = $this->entities->newPage(['name' => 'TermA', 'html' => '

tests/LanguageTest.php

@@ -27,8 +27,10 @@ public function test_locales_list_set_properly()
     }
 
     // Not part of standard phpunit test runs since we sometimes expect non-added langs.
-    public function do_test_locales_all_have_language_dropdown_entry()
+    public function test_locales_all_have_language_dropdown_entry()
     {
+        $this->markTestSkipped('Only used when checking language inclusion');
+
         $dropdownLocales = array_keys(trans('settings.language_select', [], 'en'));
         sort($dropdownLocales);
         sort($this->langs);