<?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::table('course_content_evaluations', function (Blueprint $table) { $table->json('audience_course_ids')->nullable()->comment('限定人群课程ID，空为不限定'); }); }
    public function down() { Schema::table('course_content_evaluations', function (Blueprint $table) { $table->dropColumn('audience_course_ids'); }); }
};