fix(cities): perbaiki pemetaan kolom untuk tabel kota

- Menambahkan indeks pada kolom 'code' untuk meningkatkan performa pencarian.
- Menghapus indeks yang tidak diperlukan untuk kolom 'province_code'.

database/migrations/2024_08_08_144256_create_cities_table.php

@@ -14,17 +14,13 @@ return new class extends Migration
         Schema::create('cities', function (Blueprint $table) {
             $table->id();
             $table->string('province_code')->index();
-            $table->string('code');
+            $table->string('code')->index();
             $table->string('name');
             $table->timestamps();
             $table->softDeletes();
             $table->uuid('created_by')->nullable();
             $table->uuid('updated_by')->nullable();
             $table->uuid('deleted_by')->nullable();
-
-            $table->index('code');
-            $table->index('province_code');
-
         });
     }
 

database/migrations/2024_08_08_144302_create_districts_table.php

@@ -15,17 +15,13 @@ return new class extends Migration
             $table->id();
             $table->string('province_code')->index();
             $table->string('city_code')->index();
-            $table->string('code');
+            $table->string('code')->index();
             $table->string('name');
             $table->timestamps();
             $table->softDeletes();
             $table->uuid('created_by')->nullable();
             $table->uuid('updated_by')->nullable();
             $table->uuid('deleted_by')->nullable();
-
-            $table->index('code');
-            $table->index('province_code');
-            $table->index('city_code');
         });
     }
 

database/migrations/2024_08_08_144309_create_villages_table.php

@@ -16,7 +16,7 @@ return new class extends Migration
             $table->string('province_code')->index();
             $table->string('city_code')->index();
             $table->string('district_code')->index();
-            $table->string('code');
+            $table->string('code')->index();
             $table->string('name');
             $table->string('alt_name')->nullable();
             $table->string('postal_code', 5)->nullable();
@@ -25,11 +25,6 @@ return new class extends Migration
             $table->uuid('created_by')->nullable();
             $table->uuid('updated_by')->nullable();
             $table->uuid('deleted_by')->nullable();
-
-            $table->index('code');
-            $table->index('province_code');
-            $table->index('city_code');
-            $table->index('district_code');
         });
     }