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database/migrations/2023_05_30_115019_genreables_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up()
+    {
+        Schema::create('genre_title', function (Blueprint $table) {
+            $table->id();
+            $table->bigInteger('genre_id')->index();
+            $table->bigInteger('title_id')->index();
+
+            $table->unique(['genre_id', 'title_id']);
+        });
+    }
+
+    public function down()
+    {
+        //
+    }
+};