bab-icon/database/migrations/2021_11_10_153049_create_im_groups_table.php

<?php

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

/**
 * Class CreateImGroupsTable.
 */
class CreateImGroupsTable extends Migration
{
	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
		Schema::create('im_groups', function(Blueprint $table) {
            $table->increments('id');
            $table->integer('m_id')->default(0)->index('m_id')->comment('会员(发起人)ID');
            $table->integer('shop_id')->default(0)->index('shop_id')->comment('店铺ID');
            $table->integer('service_id')->default(0)->index('service_id')->comment('客服ID');
			$table->integer('handle_id')->index('handle_id')->comment('处理该组消息(即接收)人ID');
            $table->tinyInteger('group_type')->comment('消息组关系类型 1:用户与用户,2:用户与店铺,3:用户与平台');
            $table->string('logo')->comment('接收人logo');
            $table->string('name')->comment('接收人昵称');
			$table->tinyInteger('text_type')->comment('最后一条消息内容类型 1:文字,2:图片');
            $table->string('text')->comment('最后一条消息内容');
			$table->timestamp('last_time')->comment('最后一条消息时间');
            $table->tinyInteger('is_del')->default(0)->index('is_del')->comment('是否删除 0:否，1:是');
            $table->timestamps();
            $table->engine = 'InnoDB';
		});
	}

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