b27289bbea
- 新增界面截图与 CONTRIBUTING.md - README 以三栏布局、暗色主题、移动端等视觉亮点为主 - go module 迁移至 git.iioio.com/freefire/jiang13-forum Co-authored-by: Cursor <cursoragent@cursor.com>
67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
package service
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import (
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"errors"
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"git.iioio.com/freefire/jiang13-forum/model"
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)
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type BoardService struct{}
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func NewBoardService() *BoardService {
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return &BoardService{}
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}
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// BoardWithStats 板块及帖子数量
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type BoardWithStats struct {
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model.Board
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PostCount int `json:"post_count"`
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}
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func (s *BoardService) List() ([]model.Board, error) {
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var boards []model.Board
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err := model.DB.Order("sort_order asc, id asc").Find(&boards).Error
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return boards, err
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}
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func (s *BoardService) ListWithStats() ([]BoardWithStats, error) {
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boards, err := s.List()
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if err != nil {
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return nil, err
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}
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result := make([]BoardWithStats, len(boards))
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for i, b := range boards {
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var count int64
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model.DB.Model(&model.Post{}).Where("board_id = ?", b.ID).Count(&count)
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result[i] = BoardWithStats{Board: b, PostCount: int(count)}
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}
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return result, nil
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}
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func (s *BoardService) GetByID(id uint) (*model.Board, error) {
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var board model.Board
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if err := model.DB.First(&board, id).Error; err != nil {
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return nil, ErrBoardNotFound
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}
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return &board, nil
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}
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func (s *BoardService) Create(name, desc string, sortOrder int) (*model.Board, error) {
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board := &model.Board{Name: name, Description: desc, SortOrder: sortOrder}
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return board, model.DB.Create(board).Error
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}
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func (s *BoardService) Update(id uint, name, desc string, sortOrder int) error {
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return model.DB.Model(&model.Board{}).Where("id = ?", id).Updates(map[string]interface{}{
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"name": name, "description": desc, "sort_order": sortOrder,
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}).Error
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}
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func (s *BoardService) Delete(id uint) error {
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var count int64
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model.DB.Model(&model.Post{}).Where("board_id = ?", id).Count(&count)
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if count > 0 {
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return errors.New("该板块下还有帖子，无法删除")
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}
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return model.DB.Delete(&model.Board{}, id).Error
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}
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