belongsTo(Jobfair::class, 'jobfair_id'); } public function jobfair_company() { return $this->hasOne(JobfairCompany::class, 'id','exid'); } public function jobs() { return $this->belongsTo(JobfairJob::class, 'job_id','id'); } /** * @param \Illuminate\Database\Eloquent\Builder $query * @return \Illuminate\Database\Eloquent\Builder */ public function scopeJoinJobfairJob($query) { return $query->join('jobfair_jobs', 'job_id', '=', 'jobfair_jobs.id') ->select(); } }