hasOne(\app\common\model\Company::class, 'id', 'company_id')->bind(['company_name']);; } public function partyA() { return $this->hasOne(\app\common\model\Company::class, 'id', 'company_id')->bind(['party_a_name'=>'company_name']);; } public function contractType() { return $this->hasOne(\app\common\model\dict\DictData::class, 'id', 'contract_type')->bind(['contract_type_name'=>'name']);; } }