neiyou_user_web/app/Models/Coupon.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

/**
 * 优惠券.
 */
class Coupon extends Model
{
    use SoftDeletes;

    protected $table = 'coupon';
    protected $casts = ['start_time' => 'date:Y-m-d', 'end_time' => 'date:Y-m-d'];
    protected $dates = ['deleted_at'];
    protected $guarded = [];

    // 筛选类型
    public function scopeType($query, $type)
    {
        return $query->whereType($type);
    }

    public function setStartTimeAttribute($value)
    {
        return $this->attributes['start_time'] = strtotime($value);
    }

    public function setEndTimeAttribute($value)
    {
        return $this->attributes['end_time'] = strtotime($value);
    }
}