实现文章与分组管理
This commit is contained in:
257
web/services/article.go
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257
web/services/article.go
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@@ -0,0 +1,257 @@
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package services
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import (
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"errors"
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"platform/pkg/u"
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"platform/web/core"
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m "platform/web/models"
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q "platform/web/queries"
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"time"
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"gorm.io/gen/field"
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"gorm.io/gorm"
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)
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var Article = &articleService{}
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type articleService struct{}
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func (s *articleService) Page(req *PageArticleReq) (result []*m.Article, count int64, err error) {
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do := q.Article.Where()
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if req.Keyword != nil && *req.Keyword != "" {
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do = do.Where(q.Article.Title.Like("%" + *req.Keyword + "%"))
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}
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if req.GroupID != nil {
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do = do.Where(q.Article.GroupID.Eq(*req.GroupID))
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}
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if req.Status != nil {
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do = do.Where(q.Article.Status.Eq(int(*req.Status)))
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}
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return q.Article.
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Preload(q.Article.Group).
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Where(do).
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Omit(q.Article.Content).
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Order(q.Article.Sort, q.Article.CreatedAt).
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FindByPage(req.GetOffset(), req.GetLimit())
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}
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type PageArticleReq struct {
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core.PageReq
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Keyword *string `json:"keyword,omitempty"`
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GroupID *int32 `json:"group_id,omitempty"`
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Status *m.ArticleStatus `json:"status,omitempty"`
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}
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func (s *articleService) GetByAdmin(id int32) (*m.Article, error) {
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article, err := q.Article.
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Preload(q.Article.Group).
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Where(q.Article.ID.Eq(id)).
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Take()
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, core.NewBizErr("文档不存在")
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}
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if err != nil {
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return nil, err
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}
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return article, nil
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}
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func (s *articleService) Create(data CreateArticleData) error {
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if err := s.ensureGroupExists(data.GroupID); err != nil {
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return err
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}
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return q.Article.Create(&m.Article{
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GroupID: data.GroupID,
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Title: data.Title,
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Content: data.Content,
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Sort: u.Else(data.Sort, 0),
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Status: u.Else(data.Status, m.ArticleStatusEnabled),
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})
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}
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type CreateArticleData struct {
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GroupID int32 `json:"group_id" validate:"required"`
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Title string `json:"title" validate:"required"`
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Content *string `json:"content"`
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Sort *int32 `json:"sort"`
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Status *m.ArticleStatus `json:"status"`
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}
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func (s *articleService) Update(data UpdateArticleData) error {
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if data.GroupID != nil {
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if err := s.ensureGroupExists(*data.GroupID); err != nil {
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return err
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}
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}
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do := make([]field.AssignExpr, 0)
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if data.GroupID != nil {
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do = append(do, q.Article.GroupID.Value(*data.GroupID))
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}
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if data.Title != nil {
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do = append(do, q.Article.Title.Value(*data.Title))
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}
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if data.Content != nil {
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do = append(do, q.Article.Content.Value(*data.Content))
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}
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if data.Sort != nil {
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do = append(do, q.Article.Sort.Value(*data.Sort))
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}
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if data.Status != nil {
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do = append(do, q.Article.Status.Value(int(*data.Status)))
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}
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if len(do) == 0 {
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return nil
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}
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r, err := q.Article.Where(q.Article.ID.Eq(data.ID)).UpdateSimple(do...)
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if err != nil {
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return err
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}
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if r.RowsAffected == 0 {
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return core.NewBizErr("文档状态已过期")
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}
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return nil
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}
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type UpdateArticleData struct {
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ID int32 `json:"id" validate:"required"`
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GroupID *int32 `json:"group_id"`
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Title *string `json:"title"`
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Content *string `json:"content"`
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Sort *int32 `json:"sort"`
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Status *m.ArticleStatus `json:"status"`
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}
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func (s *articleService) Delete(id int32) error {
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r, err := q.Article.Where(q.Article.ID.Eq(id)).UpdateColumn(q.Article.DeletedAt, time.Now())
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if err != nil {
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return err
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}
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if r.RowsAffected == 0 {
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return core.NewBizErr("文档状态已过期")
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}
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return nil
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}
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func (s *articleService) Nav() ([]*ArticleNavGroup, error) {
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groups, err := q.ArticleGroup.
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Where(q.ArticleGroup.Status.Eq(int(m.ArticleGroupStatusEnabled))).
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Order(q.ArticleGroup.Sort, q.ArticleGroup.CreatedAt).
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Find()
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if err != nil {
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return nil, err
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}
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if len(groups) == 0 {
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return []*ArticleNavGroup{}, nil
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}
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groupIDs := make([]int32, 0, len(groups))
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result := make([]*ArticleNavGroup, 0, len(groups))
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groupMap := make(map[int32]*ArticleNavGroup, len(groups))
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for _, group := range groups {
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groupIDs = append(groupIDs, group.ID)
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item := &ArticleNavGroup{
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ID: group.ID,
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Name: group.Name,
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Code: group.Code,
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Articles: []*ArticleNavArticle{},
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}
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result = append(result, item)
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groupMap[group.ID] = item
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}
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articles, err := q.Article.
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Where(
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q.Article.GroupID.In(groupIDs...),
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q.Article.Status.Eq(int(m.ArticleStatusEnabled)),
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).
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Omit(q.Article.Content).
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Order(q.Article.Sort, q.Article.CreatedAt).
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Find()
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if err != nil {
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return nil, err
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}
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for _, article := range articles {
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group := groupMap[article.GroupID]
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if group == nil {
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continue
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}
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group.Articles = append(group.Articles, &ArticleNavArticle{
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ID: article.ID,
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Title: article.Title,
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UpdatedAt: article.UpdatedAt,
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})
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}
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return result, nil
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}
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type ArticleNavGroup struct {
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ID int32 `json:"id"`
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Name string `json:"name"`
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Code string `json:"code"`
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Articles []*ArticleNavArticle `json:"articles"`
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}
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type ArticleNavArticle struct {
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ID int32 `json:"id"`
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Title string `json:"title"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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func (s *articleService) GetPublic(id int32) (*ArticlePublicDetail, error) {
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article, err := q.Article.
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Preload(q.Article.Group).
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Where(
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q.Article.ID.Eq(id),
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q.Article.Status.Eq(int(m.ArticleStatusEnabled)),
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).
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Take()
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, core.NewBizErr("文档不存在")
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}
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if err != nil {
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return nil, err
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}
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if article.Group == nil || article.Group.Status != m.ArticleGroupStatusEnabled {
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return nil, core.NewBizErr("文档不存在")
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}
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return &ArticlePublicDetail{
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ID: article.ID,
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Title: article.Title,
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Content: article.Content,
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UpdatedAt: article.UpdatedAt,
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Group: &ArticlePublicGroup{
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ID: article.Group.ID,
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Name: article.Group.Name,
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Code: article.Group.Code,
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},
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}, nil
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}
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type ArticlePublicDetail struct {
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ID int32 `json:"id"`
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Title string `json:"title"`
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Content *string `json:"content,omitempty"`
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UpdatedAt time.Time `json:"updated_at"`
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Group *ArticlePublicGroup `json:"group"`
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}
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type ArticlePublicGroup struct {
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ID int32 `json:"id"`
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Name string `json:"name"`
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Code string `json:"code"`
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}
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func (s *articleService) ensureGroupExists(groupID int32) error {
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_, err := q.ArticleGroup.Where(q.ArticleGroup.ID.Eq(groupID)).Take()
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return core.NewBizErr("文档分组不存在")
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}
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return err
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}
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128
web/services/article_group.go
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128
web/services/article_group.go
Normal file
@@ -0,0 +1,128 @@
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package services
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import (
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"errors"
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"platform/pkg/u"
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"platform/web/core"
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m "platform/web/models"
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q "platform/web/queries"
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"time"
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"gorm.io/gen/field"
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"gorm.io/gorm"
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)
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var ArticleGroup = &articleGroupService{}
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type articleGroupService struct{}
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func (s *articleGroupService) All() (result []*m.ArticleGroup, err error) {
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return q.ArticleGroup.
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Order(q.ArticleGroup.Sort, q.ArticleGroup.CreatedAt).
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Find()
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}
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func (s *articleGroupService) Page(req *PageArticleGroupReq) (result []*m.ArticleGroup, count int64, err error) {
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do := q.ArticleGroup.Where()
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if req.Keyword != nil && *req.Keyword != "" {
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do = do.Where(
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q.ArticleGroup.Where(
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q.ArticleGroup.Name.Like("%" + *req.Keyword + "%"),
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).Or(
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q.ArticleGroup.Code.Like("%" + *req.Keyword + "%"),
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),
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)
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}
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if req.Status != nil {
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do = do.Where(q.ArticleGroup.Status.Eq(int(*req.Status)))
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}
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return q.ArticleGroup.
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Where(do).
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Order(q.ArticleGroup.Sort, q.ArticleGroup.CreatedAt).
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FindByPage(req.GetOffset(), req.GetLimit())
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}
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type PageArticleGroupReq struct {
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core.PageReq
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Keyword *string `json:"keyword,omitempty"`
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Status *m.ArticleGroupStatus `json:"status,omitempty"`
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}
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func (s *articleGroupService) Create(data CreateArticleGroupData) error {
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err := q.ArticleGroup.Create(&m.ArticleGroup{
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Name: data.Name,
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Code: data.Code,
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Sort: u.Else(data.Sort, 0),
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Status: u.Else(data.Status, m.ArticleGroupStatusEnabled),
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})
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if errors.Is(err, gorm.ErrDuplicatedKey) {
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return core.NewBizErr("文档分组编码已存在")
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}
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return err
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}
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type CreateArticleGroupData struct {
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Name string `json:"name" validate:"required"`
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Code string `json:"code" validate:"required"`
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Sort *int32 `json:"sort"`
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Status *m.ArticleGroupStatus `json:"status"`
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}
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func (s *articleGroupService) Update(data UpdateArticleGroupData) error {
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do := make([]field.AssignExpr, 0)
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if data.Name != nil {
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do = append(do, q.ArticleGroup.Name.Value(*data.Name))
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}
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if data.Code != nil {
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do = append(do, q.ArticleGroup.Code.Value(*data.Code))
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}
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if data.Sort != nil {
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do = append(do, q.ArticleGroup.Sort.Value(*data.Sort))
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}
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if data.Status != nil {
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do = append(do, q.ArticleGroup.Status.Value(int(*data.Status)))
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}
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if len(do) == 0 {
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return nil
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}
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r, err := q.ArticleGroup.Where(q.ArticleGroup.ID.Eq(data.ID)).UpdateSimple(do...)
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if errors.Is(err, gorm.ErrDuplicatedKey) {
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return core.NewBizErr("文档分组编码已存在")
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}
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if err != nil {
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return err
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}
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if r.RowsAffected == 0 {
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return core.NewBizErr("文档分组状态已过期")
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}
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return nil
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}
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type UpdateArticleGroupData struct {
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ID int32 `json:"id" validate:"required"`
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Name *string `json:"name"`
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Code *string `json:"code"`
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Sort *int32 `json:"sort"`
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Status *m.ArticleGroupStatus `json:"status"`
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}
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func (s *articleGroupService) Delete(id int32) error {
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count, err := q.Article.Where(q.Article.GroupID.Eq(id)).Count()
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if err != nil {
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return err
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}
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if count > 0 {
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return core.NewBizErr("分组下仍有关联文章，无法删除")
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}
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r, err := q.ArticleGroup.Where(q.ArticleGroup.ID.Eq(id)).UpdateColumn(q.ArticleGroup.DeletedAt, time.Now())
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if err != nil {
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return err
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}
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if r.RowsAffected == 0 {
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return core.NewBizErr("文档分组状态已过期")
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}
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return nil
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}
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