belongsToMany('App\User','user_role','id_role','id_user'); } function authorities(){ return $this->belongsToMany('App\Authority','authority_role','id_role','id_authority'); } public function owners() { //货主 return $this->belongsToMany(Owner::class); } public function userWorkGroups() { //工作组 return $this->belongsToMany(UserWorkgroup::class,"role_user_work_group","role_id","user_work_group_id"); } function laborCompanies(){ return $this->belongsToMany('App\LaborCompany','role_labor_company','role_id','labor_company_id'); } }