hainan/app/Models/DemandProduct.php

<?php

namespace App\Models;

use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\Eloquent\Model;

class DemandProduct extends Model
{
	use HasDateTimeFormatter;
    use SoftDeletes;

    protected $table = 'demand_products';
	use HasFactory, SoftDeletes;

	protected $guarded = ['id']; //不允许编辑的字段

	// 获取所有产品图片
	public function getPicturesAttribute($value): array
	{
		if (is_string($value)) {
			$value = $value ? json_decode($value, true) : [];
		}
		$this->append('picture');
		return $value ?? [];
	}

	// 获取第一张产品图片
	public function getPictureAttribute($value): string
	{
		return $this->pictures[0] ?? '';
	}

	public function setPicturesAttribute($value)
	{
		if (is_array($value)) {
			$this->attributes['pictures'] = json_encode(array_filter($value));
		}
	}

	public function supplier()
	{
		return $this->belongsTo(Supplier::class);
	}

	public function category()
	{
		return $this->belongsTo(Category::class);
	}
}