Question

我有这些模型及其相关的数据库表，目前我可以检索所有需求

Requirement::all()

但我只有一个foreigns键列表（destination_id，applier_id，doc_id）。如何直接检索连接到该foreigns键的行？

class Requirement extends Model
  {
    protected $fillable = [
        'required',
        'destination_id',
        'applier_id',
        'doc_id'
    ];

  public function destination()
  {
      return $this->belongsTo(Destination::class);
  }

  public function applier()
  {
     return $this->belongsTo(Applier::class);
  }

  public function doc()
  {
     return $this->belongsTo(Doc::class);
  }
}



class Doc extends Model
{
  protected $fillable = [
        'type',
        'description',
        'note'
  ];

    public function requirements()
    {
      return $this->hasMany(Requirement::class);
    }
 }



class Destination extends Model
{
    protected $fillable = [
        'country',
        'passying_country',
        'transfer_conditions',
        'passing_conditions'
     ];

   public function requirements()
   {
      return $this->hasMany(Requirement::class);
   }
}

Answer 1

您可以拨打with()功能而不是all()。所以如果你尝试以下这个：

$requirements =  Requirement::with('destination', 'applier', 'doc')->get();

将其设为dd($requirements)并查看输出。

希望它会奏效。

Laravel从外键检索值

1 个答案: