m：m上的1：1变体Laravel 5.5中的雄辩关系：示例是否有效？

Question

I am trying to specify a 1:1 relationship, via orgperson(), despite the m:m nature of an existing relationship, orgs(), so that I can eager load 1 default organization.

I have the following objects, each with a table:

• person model - important note, defaultOrgID exists on person
• organization record
• pivot connecting both (orgperson) with additional fields

Is my "jerry-rigging," as shown in the orgperson() function, valid?

If not, is there anything close that would be?

In the Person model, the relevant relationships are as follows:

    // many-to-many relationship from person to orgs via org-person table
    public function orgs()
    {
        return $this->belongsToMany(Org::class, 'org-person', 'personID', 'orgID');
    }

    // "pivot table" with additional fields
    public function orgperson()
    {
        return $this->belongsTo(OrgPerson::class, 'personID', 'personID')
            ->where([
                ['orgID', $this->defaultOrgID],
                ['personID', $this->personID]
            ]);
    }

Answer 1

Turns out that this was as simple as I had hoped.

My intermediate table (org-person) had been defined as a Model. I toyed with having its class extend Pivot instead of Model but, in the end, I stuck with Model.

The code that works (relationship on my Person model):

public function orgperson()
{
    return $this->hasOne(OrgPerson::class, 'personID', 'personID')
        ->where('orgID', $this->defaultOrgID);
}

This gets me the desired result of being able to have this relation return a single entry from what could be multiple records in the pivot table based on the value in defaultOrgID.

My problem was using "belongsTo" instead of "hasOne."