Laravel渴望加载一对多的关系

Question

美好的一天，我遇到了这个问题，我试图从2个表中检索记录

class Leads extends Eloquent
{
    public function leademail()
    {
        return $this->hasMany('LeadDetailEmails'); 
    }
}

class LeadDetailEmails extends Eloquent
{
    public function lead()
    {
        return $this->belongsTo('Leads');
    }
}


class Category extends BaseController
{
    public function fetchRecord()
    {
        $result = Leads::with('leademail')->get();
    }
}

leadDetailEmails在迁移文件中设置了外键

$table->foreign('lead_id')->references('id')->on('leads')->onDelete('cascade');

我收到此错误：

"message":"SQLSTATE[42S22]: Column not found: 1054 Unknown column 'lead_detail_emails.leads_model_id' in 'where clause' (SQL: select * from `lead_detail_emails` where `lead_detail_emails`.`leads_model_id` in (1, 2, 3))"

我该怎么做才能解决错误？另外，如果有第三个表（LeadDetailContact），我怎么能急于加载表？

感谢。

Answer 1

您应该尝试按以下方式为LeadDetailEmails指定表名：

class LeadDetailEmails extends Eloquent
{
    protected $table = 'leadDetailEmails';

    public function lead()
    {
        return $this->belongsTo('Leads');
    }
}

如果您希望通过热切加载获得更多关系，您可以这样做：

$result = Leads::with('leademail', 'leadcontact')->get();