Laravel hasOne 关系未加载

Question

我正在尝试在 laravel 中使用自定义字段加载 hasOne 关系。这是建立在一个已经定义的数据库之上的，所以我不能修改数据库。

我在 sqlserver 2014 和不同架构上都有两个表，所有 PK 和 FK 都是整数。

表格：

表 CursoProgramado (schema dbo): CursoProgramado(PK) fieldA fieldB

表 silabos (schema sga): id(PK) fieldC fieldD CursoProgramado(FK)

型号：

CursoProgramado

class CursoProgramado extends Model {
  protected $connection = 'sqlsrv';
  protected $table = 'CursoProgramado';
  protected $primaryKey = 'CursoProgramado';

   public function silabo()
     {
        return $this->hasOne(Silabo::class, 'CursoProgramado', 'CursoProgramado');
     }
}

锡拉博

class Silabo extends Model {
  protected $connection = 'sqlsrv';
  protected $table = 'sga.silabos';
}

控制器，试图让关系发挥作用

$carga = CursoProgramado::findOrFail($carga);
//this return the model correctly
$carga->silabo;
//this should return the related model but returns NULL

// if i get the query log
DB::connection('sqlsrv')->enableQueryLog();
$carga->silabo;
dd(DB::connection('sqlsrv')->getQueryLog());

// i get this

array:1 [▼
  0 => array:3 [▼
    "query" => "select top 1 * from [sga].[silabos] where [sga].[silabos].[CursoProgramado] = ? and [sga].[silabos].[CursoProgramado] is not null"
    "bindings" => array:1 [▼
      0 => 147689
    ]
    "time" => 18.59
  ]
]
//Runnig query
select top 1 * from [sga].[silabos] where [sga].[silabos].[CursoProgramado] = 147689 and [sga].[silabos].[CursoProgramado] is not null;

// it return data
id  CursoProgramado consejeria
1933    147689   La consejería y orientación...

不确定是什么原因造成的

Answer 1

需要在Silabo类中定义属于关系

class Silabo extends Model {
  protected $connection = 'sqlsrv';
  protected $table = 'sga.silabos';

  public function cursoProgramado()
  {
     return $this->belongsTo(CursoProgramado::class, 'CursoProgramado', 'CursoProgramado')
  }
}

干杯