Add new migration

database/migrations/2019_08_12_074612_add_unique_to_statuses_table.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddUniqueToStatusesTable extends Migration
+{
+    public function __construct()
+    {
+        DB::getDoctrineSchemaManager()->getDatabasePlatform()->registerDoctrineTypeMapping('enum', 'string');
+    }
+
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('statuses', function (Blueprint $table) {
+            $table->string('uri')->nullable()->unique()->index()->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('statuses', function (Blueprint $table) {
+            $table->string('uri')->nullable()->change();
+        });
+    }
+}