community-manage/database/migrations/2019_06_03_162449_create_table_post_comment.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateTablePostComment extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('post_comment', function (Blueprint $table) {
            $table->bigIncrements('id');

            $table->integer('post_id')
                ->index('post_id')
                ->comment('帖子id');

            $table->integer('parent_id')
                ->default(0)
                ->comment('评论id');

            $table->integer('uid')
                ->index('uid')
                ->unsigned()
                ->comment('uid');

            $table->string('username', 32)
                ->default('')
                ->comment('昵称');

            $table->string('avatar', 255)
                ->default('')
                ->comment('头像');

            $table->string('content', 200)
                ->default('')
                ->comment('评论内容');
            
            $table->tinyInteger('is_delete')
                ->default(0)
                ->comment('是否删除：0否，1是');
            
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('post_comment');
    }
}