improve characters query and indexing

app/Http/QueryBuilder/SearchQueryBuilderCharacter.php

@@ -34,9 +34,11 @@ class SearchQueryBuilderCharacter implements SearchQueryBuilderInterface
         if (!empty($query) && is_null($letter)) {
 
             $results = $results
-                ->where('name', 'like', "%{$query}%")
-                ->orWhere('name_kanji', 'like', "%{$query}%")
-                ->orWhere('nicknames', 'like', "%{$query}%");
+                ->whereRaw([
+                    '$text' => [
+                        '$search' => $query
+                    ]
+                ]);
         }
 
         if (!is_null($letter)) {

database/migrations/2020_06_08_093529_create_characters_table.php

@@ -23,9 +23,20 @@ class CreateCharactersTable extends Migration
             $table->index('nicknames');
             $table->integer('member_favorites')->index('member_favorites');
             $table->string('about')->nullable();
-            $table->index('animeography');
-            $table->index('mangaography');
-            $table->index('voice_actors');
+            $table->index([
+                'name' => 'text',
+                'nicknames' => 'text',
+            ],
+                'characters_search_index',
+                null,
+                [
+                    'weights' => [
+                        'name' => 50,
+                        'nicknames' => 10,
+                    ],
+                    'name' => 'characters_search_index'
+                ]
+            );
         });
     }