左侧栏评论

actions/common/common.go

@@ -20,6 +20,7 @@ var archivesCaches *Arch
 var categoryCaches *cache.SliceCache[models.WpTermsMy]
 var recentPostsCaches *cache.SliceCache[models.WpPosts]
 var monthCaches *cache.MapCache[string, []models.WpPosts]
+var recentCommentsCaches *cache.SliceCache[models.WpComments]
 
 func InitCache() {
 	archivesCaches = &Arch{
@@ -29,6 +30,7 @@ func InitCache() {
 	categoryCaches = cache.NewSliceCache[models.WpTermsMy](categories, vars.Conf.CategoryCacheTime)
 	recentPostsCaches = cache.NewSliceCache[models.WpPosts](recentPosts, vars.Conf.RecentPostCacheTime)
 	monthCaches = cache.NewMapCache[string, []models.WpPosts](getMonthPost, 30*time.Minute)
+	recentCommentsCaches = cache.NewSliceCache[models.WpComments](recentComments, vars.Conf.RecentCommentsCacheTime)
 }
 
 type Arch struct {
@@ -66,6 +68,19 @@ func GetMonthPost(ctx context.Context, year, month string) ([]models.WpPosts, er
 	return monthCaches.GetCache(ctx, fmt.Sprintf("%s%s", year, month), time.Second, year, month)
 }
 
+func RecentComments(ctx context.Context) (r []models.WpComments) {
+	r, _ = recentCommentsCaches.GetCache(ctx, time.Second)
+	return
+}
+func recentComments(...any) (r []models.WpComments, err error) {
+	return models.Find[models.WpComments](models.SqlBuilder{
+		{"comment_approved", "1"},
+		{"post_status", "publish"},
+	}, "comment_ID,comment_author,comment_post_ID,post_title", "", models.SqlBuilder{{"comment_date_gmt", "desc"}}, models.SqlBuilder{
+		{"a", "left join", "wp_posts b", "a.comment_post_ID=b.ID"},
+	}, 5)
+}
+
 func getMonthPost(args ...any) ([]models.WpPosts, error) {
 	y := args[0].(string)
 	m := args[1].(string)

actions/detail.go

@@ -17,12 +17,14 @@ func Detail(c *gin.Context) {
 	recent := common.RecentPosts(ctx)
 	archive := common.Archives()
 	categoryItems := common.Categories(ctx)
+	comments := common.RecentComments(ctx)
 	var h = gin.H{
 		"title":       models.Options["blogname"],
 		"options":     models.Options,
 		"recentPosts": recent,
 		"archives":    archive,
 		"categories":  categoryItems,
+		"comments":    comments,
 	}
 	defer func() {
 		c.HTML(http.StatusOK, "posts/detail.gohtml", h)

actions/index.go

@@ -153,6 +153,7 @@ func Index(c *gin.Context) {
 	archive := common.Archives()
 	recent := common.RecentPosts(ctx)
 	categoryItems := common.Categories(ctx)
+	comments := common.RecentComments(ctx)
 	ginH := gin.H{
 		"options":     models.Options,
 		"recentPosts": recent,
@@ -161,6 +162,7 @@ func Index(c *gin.Context) {
 		"search":      h.search,
 		"header":      h.header,
 		"title":       h.getTitle(),
+		"comments":    comments,
 	}
 	postIds, totalRaw, err := models.SimplePagination[models.WpPosts](h.where, "ID", "", h.page, h.pageSize, h.orderBy, h.join, h.postType, h.status)
 	defer func() {

cache/map.go

@@ -37,6 +37,7 @@ func (c *MapCache[K, V]) GetCache(ctx context.Context, key K, timeout time.Durat
 	_, ok := c.data[key]
 	var err error
 	expired := time.Duration(c.setTime.Unix())+c.expireTime/time.Second < time.Duration(time.Now().Unix())
+	//todo 这里应该判断下取出的值是否为零值，不过怎么操作呢？
 	if !ok || (c.expireTime >= 0 && expired) {
 		t := c.incr
 		call := func() {

config.example.yaml

@@ -21,3 +21,5 @@ recentPostCacheTime: 30m
 categoryCacheTime: 30m
 # 上下篇缓存时间
 contextPostCacheTime: 1h
+# 最近评论缓存时间
+recentCommentsCacheTime: 10m

helper/func.go

@@ -25,7 +25,7 @@ func StructColumn[T any, M any](arr []M, field string) (r []T) {
 }
 
 func RangeSlice[T ~int | ~uint | ~int64 | ~int8 | ~int16 | ~int32 | ~uint64](start, end, step T) []T {
-	r := make([]T, 0, int(end/step+1))
+	r := make([]T, 0, int((end-start+1)/step+1))
 	for i := start; i <= end; {
 		r = append(r, i)
 		i = i + step
@@ -45,3 +45,16 @@ func StrJoin(s ...string) (str string) {
 	}
 	return
 }
+
+func SlicePagination[T any](arr []T, page, pageSize int) []T {
+	start := (page - 1) * pageSize
+	l := len(arr)
+	if start > l {
+		start = l
+	}
+	end := page * pageSize
+	if l < end {
+		end = l
+	}
+	return arr[start:end]
+}

helper/func_test.go

@@ -103,6 +103,15 @@ func TestRangeSlice(t *testing.T) {
 			},
 			want: []int{0, 2, 4},
 		},
+		{
+			name: "t3",
+			args: args{
+				start: 1,
+				end:   11,
+				step:  3,
+			},
+			want: []int{1, 4, 7, 10},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -132,3 +141,58 @@ func TestStrJoin(t *testing.T) {
 		})
 	}
 }
+
+func TestSlicePagination(t *testing.T) {
+	arr := RangeSlice[int](1, 10, 1)
+	type args struct {
+		arr      []int
+		page     int
+		pageSize int
+	}
+	tests := []struct {
+		name string
+		args args
+		want []int
+	}{
+		{
+			name: "t1",
+			args: args{
+				arr:      arr,
+				page:     1,
+				pageSize: 2,
+			},
+			want: RangeSlice[int](1, 2, 1),
+		}, {
+			name: "t2",
+			args: args{
+				arr:      arr,
+				page:     2,
+				pageSize: 2,
+			},
+			want: RangeSlice[int](3, 4, 1),
+		}, {
+			name: "t3",
+			args: args{
+				arr:      arr,
+				page:     4,
+				pageSize: 3,
+			},
+			want: []int{10},
+		}, {
+			name: "t4",
+			args: args{
+				arr:      arr,
+				page:     5,
+				pageSize: 3,
+			},
+			want: []int{},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := SlicePagination(tt.args.arr, tt.args.page, tt.args.pageSize); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("SlicePagination() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

models/wp_comments.go

@@ -18,6 +18,8 @@ type WpComments struct {
 	CommentType        string    `gorm:"column:comment_type" db:"comment_type" json:"comment_type" form:"comment_type"`
 	CommentParent      uint64    `gorm:"column:comment_parent" db:"comment_parent" json:"comment_parent" form:"comment_parent"`
 	UserId             uint64    `gorm:"column:user_id" db:"user_id" json:"user_id" form:"user_id"`
+	//扩展字段
+	PostTitle string `db:"post_title"`
 }
 
 func (w WpComments) PrimaryKey() string {

templates/layout/sidebar.gohtml

@@ -24,7 +24,13 @@
         </aside>
         <aside id="recent-comments-2" class="widget widget_recent_comments"><h2 class="widget-title">近期评论</h2>
             <nav aria-label="近期评论">
-                <ul id="recentcomments"></ul>
+                <ul id="recentcomments">
+                    {{ range $i,$v := .comments}}
+                        <li class="recentcomments">
+                            <span class="comment-author-link">{{$v.CommentAuthor}}</span>发表在《<a class="wp-block-latest-comments__comment-link" href="/p/{{$v.CommentPostId}}#comment-{{$v.CommentId}}">{{$v.PostTitle}}</a>》
+                        </li>
+                    {{end}}
+                </ul>
             </nav>
         </aside>
         <aside id="archives-2" class="widget widget_archive"><h2 class="widget-title">归档</h2>

vars/config.go

@@ -10,11 +10,12 @@ import (
 var Conf Config
 
 type Config struct {
-	Mysql                Mysql         `yaml:"mysql"`
+	Mysql                   Mysql         `yaml:"mysql"`
-	RecentPostCacheTime  time.Duration `yaml:"recentPostCacheTime"`
+	RecentPostCacheTime     time.Duration `yaml:"recentPostCacheTime"`
-	CategoryCacheTime    time.Duration `yaml:"categoryCacheTime"`
+	CategoryCacheTime       time.Duration `yaml:"categoryCacheTime"`
-	ArchiveCacheTime     time.Duration `yaml:"archiveCacheTime"`
+	ArchiveCacheTime        time.Duration `yaml:"archiveCacheTime"`
-	ContextPostCacheTime time.Duration `yaml:"contextPostCacheTime"`
+	ContextPostCacheTime    time.Duration `yaml:"contextPostCacheTime"`
+	RecentCommentsCacheTime time.Duration `yaml:"recentCommentsCacheTime"`
 }
 
 type Mysql struct {