package service import "youngee_b_api/app/dao" type CommonService struct{} func (s CommonService) CooperationPlatform() ([]string, error) { var icons []string coopPlatforms, err := dao.CommonDao{}.GetCoopPlatform() if err != nil { return nil, err } for _, coopPlatform := range coopPlatforms { icons = append(icons, coopPlatform.PlatformIcon) } return icons, nil }