Question

我的表结构是这样的：

farmers
    id
    name
    education_id (used to capture max education)

educations (names of the education levels like BS / MS / PhD etc.)
    id
    name

我尝试以下代码失败-

In farmers model (app/fermers.php) I added this code:

public function education()
{
    return $this->hasOne(Educations::class);
}

如何建立关系？

Answer 1

在您的情况下，教育有很多农民，农民属于教育。

您应该使用belongsTo()：

public function education()
{
    return $this->belongsTo(Educations::class);
}

Answer 2

该行应该像

 return $this->hasOne('App\yourModel');

例如，

 return $this->hasOne('App\Educations');

如何为这样的一对一关系建立雄辩的关系

2 个答案: