belongsTo(User::class); } public function projectTypes(): BelongsToMany { return $this->belongsToMany(ProjectType::class, 'project_type_project_article'); } public function attachments(): BelongsToMany { return $this->belongsToMany(Attachment::class, 'project_article_attachment'); } public function photos(): BelongsToMany { return $this->belongsToMany(Photo::class, 'project_article_photo'); } }