update auto post migration

database/migrations/2020_08_12_110547_create_autopost_table.php

 <?php
 
-use Illuminate\Support\Facades\Schema;
-use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
 
 class CreateAutopostTable extends Migration
 {
@@ -15,12 +15,12 @@ class CreateAutopostTable extends Migration
             $table->string('id', 36)->primary();
             $table->string('name');
             $table->string('type');
-            $table->string('key_1');
-            $table->string('key_2');
-            $table->string('key_3');
-            $table->string('key_4');
-            $table->string('key_5');
-            $table->string('key_6');
+            $table->string('key_1')->nullable();
+            $table->string('key_2')->nullable();
+            $table->string('key_3')->nullable();
+            $table->string('key_4')->nullable();
+            $table->string('key_5')->nullable();
+            $table->string('key_6')->nullable();
             $table->string('userid_created', 36)->nullable();
             $table->string('userid_updated', 36)->nullable();
             $table->timestamps();