belongsTo(Equipment::class, 'equipment_id', 'equipment_id'); } public function companyProject() { return $this->belongsTo(CompanyProject::class, 'company_projects_id', 'company_projects_id'); } public function controlEquipmentWorkstation() { return $this->hasMany(ControlEquipmentWorkstation::class, 'equipmentWorkHistorys_id', 'equipmentWorkHistorys_id'); } public function equipmentAssociationAmbit() { return $this->hasOne(EquipmentAssociationAmbit::class, 'equipmentWorkHistorys_id', 'equipmentWorkHistorys_id'); } }