services/service/booktype/booktype.go

package booktype

import (
	"errors"
	"spaceofcheng/services/models/booktype"
	"spaceofcheng/services/models/model"
	"spaceofcheng/services/service"
	"spaceofcheng/services/utils"
)

// BooktypeServ 系统处理
type BooktypeServ struct {
	ctx *utils.Context
	dao *booktype.BooktypeDAO
}

// NewBooktypeServ 初始化
func NewBooktypeServ(ctx *utils.Context) *BooktypeServ {
	return &BooktypeServ{
		ctx: ctx,
		dao: booktype.NewBooktypeDAO(ctx),
	}
}

func (s *BooktypeServ) GetBookTypeList(caseid string, page, pageSize int) (map[string]interface{}, error) {
	if pageSize == 0 {
		pageSize = service.PAGENUM
	}
	list, err := s.dao.GetBookTypeList(caseid, page, pageSize)
	if err != nil {
		utils.LogError("获取图书分类列表失败: " + err.Error())
		return nil, errors.New("获取图书分类列表失败")
	}
	total, err := s.dao.GetBookTypeListCount(caseid)
	if err != nil {
		utils.LogError("获取图书分类列表失败: " + err.Error())
		return nil, errors.New("获取图书分类列表失败")
	}
	return map[string]interface{}{
		"list":     list,
		"pageSize": pageSize,
		"pagenum":  total,
		"page":     page,
	}, nil
}

func (s *BooktypeServ) GetBookTypeById(bookTypeId string) (*model.TaBookType, error) {
	bookType, err := s.dao.GetBookTypeById(bookTypeId)
	if err != nil {
		utils.LogError("获取图书分类详情失败: " + err.Error())
		return nil, errors.New("获取图书分类详情失败")
	}
	return bookType, nil
}

func (s *BooktypeServ) SaveBookType(booktype model.TaBookType) (*model.TaBookType, error) {

	if booktype.BookTypeImg == "" {
		return nil, errors.New("类型图片不能为空")
	}
	if booktype.CaseId == "" {
		return nil, errors.New("案场不能为空")
	}
	if booktype.BookTypeName == "" {
		return nil, errors.New("类型名称不能为空")
	}
	if booktype.BookTypeId == "" {
		num, err := s.dao.IsNameExist(booktype.BookTypeName, booktype.CaseId)
		if err != nil {
			utils.LogError("新增图书分类失败: " + err.Error())
			return nil, errors.New("新增图书分类失败")
		}
		if num > 0 {
			return nil, errors.New("已存在分类名称")
		}
		bookType, err := s.dao.AddBookType(booktype)
		if err != nil {
			utils.LogError("新增图书分类失败: " + err.Error())
			return nil, errors.New("新增图书分类失败")
		}
		return bookType, nil
	}
	bookType, err := s.dao.EditBookType(booktype)
	if err != nil {
		utils.LogError("修改图书分类失败: " + err.Error())
		return nil, errors.New("修改图书分类失败")
	}

	return bookType, nil
}

func (s *BooktypeServ) DeleteBookType(bookTypeId string) error {
	num, err := s.dao.IsExistBook(bookTypeId)
	if err != nil {
		utils.LogError("删除图书失败: " + err.Error())
		return errors.New("删除图书失败")
	}
	if num > 0 {
		return errors.New("该类型下有图书，不能删除")
	}
	err = s.dao.DeleteBookType(bookTypeId)
	if err != nil {
		utils.LogError("删除图书失败: " + err.Error())
		return errors.New("删除图书失败")
	}
	return nil
}