Creating a polymorphic one to many relationship

[Jason L]

• Corcel Version: 4.0.0
• Framework Name & Version: Laravel 7.0.0
• PHP Version: 7.3.28
• Database Driver & Version: mysql 5.5.68-MariaDB

https://laravel.com/docs/7.x/eloquent-relationships#one-to-many-polymorphic-relations

I am trying to create a polymorphic one to many relationship (morphMany & morphTo) with limited success. I have a Post model that extends the \Corcel\Model\Post and uses a wordpress connection and a PostTrack model that extends the Illuminate\Database\Eloquent\Model and uses my mysql connection.

The problem I run into is when I attempt to save() via the relationship (https://laravel.com/docs/7.x/eloquent-relationships#the-save-method. Since the Post model connection has been set to wordpress, the save attempts to save the model (PostTrack) using wordpress, not mysql.

The only way that I have successfully gotten this to work is by adding newModelQuery() to my PostTrack model and explicitly setting the connection to mysql (even though the protected $connection is already set to mysql). I am thinking there must be a better/cleaner way to do this in the Post model. I have tried extending the morphMany() method in a similar fashion as the Corcel model does for other relationships but have not had much success.

I have included some code examples below. Any help would be appreciated - Thanks!

class Post extends \Corcel\Model\Post
{
    protected $connection = 'wordpress';

    public function postTracks()
    {
        return $this->morphMany('App\Models\Plus\PostTrack', 'postable');
    }

    public function likesCount()
    {
        return $this->postTracks->sum('like_score');
    }
}

class PostTrack extends Illuminate\Database\Eloquent\Model
{
    protected $connection = 'mysql';
    protected $table = 'post_tracks';

    public function newModelQuery()
    {
        $this->setConnection('mysql');
        $modelQuery = parent::newModelQuery();
        return $modelQuery;
    }

    public function postable()
    {
        return $this->morphTo();
    }

    public function scopeLiked($query)
    {
        return $query->where('like_flag', 1);
    }
}

This is the relationship I attempted to add in my Post model but with no success:

public function morphMany($related, $name, $type = NULL, $foreignKey = NULL, $localKey = NULL)
{
    $foreignKey = $foreignKey ?: $this->getForeignKey();
    $instance = $this->setInstanceConnection(
        new $related()
    );
    $localKey = $localKey ?: $this->getKeyName();

    return new MorphMany($instance->newQuery(), $this, $name, $type, $foreignKey, $localKey);
}