feat: add pinning functionality for knowledge bases

- Introduced a new API endpoint to toggle the pin status of knowledge bases, allowing users to pin important entries to the top of the list.
- Updated the frontend to include UI elements for pinning and unpinning knowledge bases, with corresponding success and error messages.
- Enhanced localization support by adding translations for pinning actions in English, Korean, Russian, and Chinese.
- Modified the database schema to include `is_pinned` and `pinned_at` fields for knowledge bases, enabling persistent pinning status.

These changes improve the organization and accessibility of knowledge bases, enhancing user experience by allowing quick access to prioritized entries.

frontend/src/api/knowledge-base/index.ts

@@ -45,6 +45,10 @@ export function copyKnowledgeBase(data: { source_id: string; target_id?: string
   return post(`/api/v1/knowledge-bases/copy`, data);
 }
 
+export function togglePinKnowledgeBase(id: string) {
+  return put(`/api/v1/knowledge-bases/${id}/pin`);
+}
+
 // 知识文件 API（基于具体知识库）
 // data.tag_id: 可选，指定知识所属的分类ID
 export function uploadKnowledgeFile(kbId: string, data: { file: File; tag_id?: string; [key: string]: any } = { file: new File([], '') }, onProgress?: (progressEvent: any) => void) {

frontend/src/i18n/locales/en-US.ts

@@ -1173,6 +1173,13 @@ export default {
     menu: {
       viewDetails: 'View Details',
     },
+    pin: {
+      pin: 'Pin to Top',
+      unpin: 'Unpin',
+      pinSuccess: 'Pinned',
+      unpinSuccess: 'Unpinned',
+      failed: 'Operation failed',
+    },
     messages: {
       deleted: 'Knowledge base deleted',
       deleteFailed: 'Failed to delete knowledge base'

frontend/src/i18n/locales/ko-KR.ts

@@ -1603,6 +1603,13 @@ export default {
     menu: {
       viewDetails: "세부 사항을 확인하세요",
     },
+    pin: {
+      pin: "상단 고정",
+      unpin: "고정 해제",
+      pinSuccess: "상단에 고정됨",
+      unpinSuccess: "고정 해제됨",
+      failed: "작업 실패",
+    },
     detail: {
       title: "공유 지식베이스",
       overview: "개요",

frontend/src/i18n/locales/ru-RU.ts

@@ -1045,6 +1045,13 @@ export default {
       confirmMessage: 'Удалить базу знаний «{name}»? Отменить действие будет невозможно.',
       confirmButton: 'Удалить'
     },
+    pin: {
+      pin: 'Закрепить',
+      unpin: 'Открепить',
+      pinSuccess: 'Закреплено',
+      unpinSuccess: 'Откреплено',
+      failed: 'Операция не удалась',
+    },
     messages: {
       deleted: 'База знаний удалена',
       deleteFailed: 'Не удалось удалить базу знаний'

frontend/src/i18n/locales/zh-CN.ts

@@ -1581,6 +1581,13 @@ export default {
     menu: {
       viewDetails: "查看详情",
     },
+    pin: {
+      pin: "置顶",
+      unpin: "取消置顶",
+      pinSuccess: "已置顶",
+      unpinSuccess: "已取消置顶",
+      failed: "操作失败",
+    },
     detail: {
       title: "共享知识库",
       overview: "概览",

frontend/src/views/knowledge/KnowledgeBaseList.vue

@@ -93,6 +93,10 @@
           :ref="el => { if (highlightedKbId !== null && highlightedKbId === kb.id && el) highlightedCardRef = el as HTMLElement }"
           @click="handleCardClick(kb)"
         >
+          <!-- 置顶标识 -->
+          <div v-if="kb.is_pinned" class="pin-indicator">
+            <t-icon name="pin-filled" size="14px" />
+          </div>
           <!-- 卡片头部 -->
           <div class="card-header">
             <span class="card-title" :title="kb.name">{{ kb.name }}</span>
@@ -107,6 +111,10 @@
               </div>
               <template #content>
                 <div class="popup-menu" @click.stop>
+                  <div class="popup-menu-item" @click.stop="handleTogglePinById(kb.id)">
+                    <t-icon class="menu-icon" :name="kb.is_pinned ? 'pin-filled' : 'pin'" />
+                    <span>{{ kb.is_pinned ? $t('knowledgeList.pin.unpin') : $t('knowledgeList.pin.pin') }}</span>
+                  </div>
                   <div class="popup-menu-item" @click.stop="handleSettingsById(kb.id)">
                     <t-icon class="menu-icon" name="setting" />
                     <span>{{ $t('knowledgeBase.settings') }}</span>
@@ -251,6 +259,10 @@
         :ref="el => { if (highlightedKbId !== null && highlightedKbId === kb.id && el) highlightedCardRef = el as HTMLElement }"
         @click="handleCardClick(kb)"
       >
+        <!-- 置顶标识 -->
+        <div v-if="kb.is_pinned" class="pin-indicator">
+          <t-icon name="pin-filled" size="14px" />
+        </div>
         <!-- 卡片头部 -->
         <div class="card-header">
           <span class="card-title" :title="kb.name">{{ kb.name }}</span>
@@ -272,6 +284,10 @@
             </div>
             <template #content>
               <div class="popup-menu" @click.stop>
+                <div class="popup-menu-item" @click.stop="handleTogglePin(kb)">
+                  <t-icon class="menu-icon" :name="kb.is_pinned ? 'pin-filled' : 'pin'" />
+                  <span>{{ kb.is_pinned ? $t('knowledgeList.pin.unpin') : $t('knowledgeList.pin.pin') }}</span>
+                </div>
                 <div class="popup-menu-item" @click.stop="handleSettings(kb)">
                   <t-icon class="menu-icon" name="setting" />
                   <span>{{ $t('knowledgeBase.settings') }}</span>
@@ -586,7 +602,7 @@
 import { onMounted, onUnmounted, ref, computed, watch, nextTick } from 'vue'
 import { useRouter, useRoute } from 'vue-router'
 import { MessagePlugin, Icon as TIcon } from 'tdesign-vue-next'
-import { listKnowledgeBases, deleteKnowledgeBase } from '@/api/knowledge-base'
+import { listKnowledgeBases, deleteKnowledgeBase, togglePinKnowledgeBase } from '@/api/knowledge-base'
 import { formatStringDate } from '@/utils/index'
 import { useUIStore } from '@/stores/ui'
 import { useOrganizationStore } from '@/stores/organization'
@@ -620,9 +636,10 @@ interface KB {
   question_generation_config?: { enabled?: boolean; question_count?: number };
   knowledge_count?: number;
   chunk_count?: number;
-  isProcessing?: boolean; // 是否有正在处理的导入任务
-  processing_count?: number; // 正在处理的文档数量（仅文档类型）
-  share_count?: number; // 共享给组织的数量
+  isProcessing?: boolean;
+  processing_count?: number;
+  share_count?: number;
+  is_pinned?: boolean;
 }
 
 const kbs = ref<KB[]>([])
@@ -850,6 +867,35 @@ const handleDeleteById = (id: string) => {
   }
 }
 
+const handleTogglePin = async (kb: KB) => {
+  kb.showMore = false
+  try {
+    const res: any = await togglePinKnowledgeBase(kb.id)
+    if (res.success) {
+      MessagePlugin.success(
+        res.data.is_pinned ? t('knowledgeList.pin.pinSuccess') : t('knowledgeList.pin.unpinSuccess')
+      )
+      fetchList()
+    }
+  } catch {
+    MessagePlugin.error(t('knowledgeList.pin.failed'))
+  }
+}
+
+const handleTogglePinById = async (id: string) => {
+  try {
+    const res: any = await togglePinKnowledgeBase(id)
+    if (res.success) {
+      MessagePlugin.success(
+        res.data.is_pinned ? t('knowledgeList.pin.pinSuccess') : t('knowledgeList.pin.unpinSuccess')
+      )
+      fetchList()
+    }
+  } catch {
+    MessagePlugin.error(t('knowledgeList.pin.failed'))
+  }
+}
+
 const handleShare = (kb: KB) => {
   // 手动关闭弹窗
   kb.showMore = false
@@ -1616,6 +1662,15 @@ const handleUploadFinishedEvent = (event: Event) => {
     }
   }
 
+  .pin-indicator {
+    position: absolute;
+    top: 8px;
+    left: 8px;
+    color: var(--td-brand-color);
+    z-index: 2;
+    opacity: 0.7;
+  }
+
   // 确保内容在装饰之上
   .card-header,
   .card-content,

internal/application/repository/knowledgebase.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"context"
 	"errors"
+	"time"
 
 	"github.com/Tencent/WeKnora/internal/types"
 	"github.com/Tencent/WeKnora/internal/types/interfaces"
@@ -77,12 +78,40 @@ func (r *knowledgeBaseRepository) ListKnowledgeBasesByTenantID(
 ) ([]*types.KnowledgeBase, error) {
 	var kbs []*types.KnowledgeBase
 	if err := r.db.WithContext(ctx).Where("tenant_id = ? AND is_temporary = ?", tenantID, false).
-		Order("created_at DESC").Find(&kbs).Error; err != nil {
+		Order("is_pinned DESC, pinned_at DESC, created_at DESC").Find(&kbs).Error; err != nil {
 		return nil, err
 	}
 	return kbs, nil
 }
 
+// TogglePinKnowledgeBase toggles the pin status of a knowledge base
+func (r *knowledgeBaseRepository) TogglePinKnowledgeBase(ctx context.Context, id string, tenantID uint64) (*types.KnowledgeBase, error) {
+	var kb types.KnowledgeBase
+	if err := r.db.WithContext(ctx).Where("id = ? AND tenant_id = ?", id, tenantID).First(&kb).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, ErrKnowledgeBaseNotFound
+		}
+		return nil, err
+	}
+
+	if kb.IsPinned {
+		kb.IsPinned = false
+		kb.PinnedAt = nil
+	} else {
+		kb.IsPinned = true
+		now := time.Now()
+		kb.PinnedAt = &now
+	}
+
+	if err := r.db.WithContext(ctx).Model(&kb).Updates(map[string]interface{}{
+		"is_pinned": kb.IsPinned,
+		"pinned_at": kb.PinnedAt,
+	}).Error; err != nil {
+		return nil, err
+	}
+	return &kb, nil
+}
+
 // UpdateKnowledgeBase updates a knowledge base
 func (r *knowledgeBaseRepository) UpdateKnowledgeBase(ctx context.Context, kb *types.KnowledgeBase) error {
 	return r.db.WithContext(ctx).Save(kb).Error

internal/application/service/knowledgebase.go

@@ -312,6 +312,23 @@ func (s *knowledgeBaseService) UpdateKnowledgeBase(ctx context.Context,
 	return kb, nil
 }
 
+// TogglePinKnowledgeBase toggles the pin status of a knowledge base
+func (s *knowledgeBaseService) TogglePinKnowledgeBase(ctx context.Context, id string) (*types.KnowledgeBase, error) {
+	if id == "" {
+		return nil, errors.New("knowledge base ID cannot be empty")
+	}
+	tenantID := types.MustTenantIDFromContext(ctx)
+	kb, err := s.repo.TogglePinKnowledgeBase(ctx, id, tenantID)
+	if err != nil {
+		logger.ErrorWithFields(ctx, err, map[string]interface{}{
+			"knowledge_base_id": id,
+		})
+		return nil, err
+	}
+	logger.Infof(ctx, "Knowledge base pin toggled, ID: %s, is_pinned: %v", id, kb.IsPinned)
+	return kb, nil
+}
+
 // DeleteKnowledgeBase deletes a knowledge base by its ID
 // This method marks the knowledge base as deleted and enqueues an async task
 // to handle the heavy cleanup operations (embeddings, chunks, files, graph data)

internal/handler/knowledgebase.go

@@ -386,6 +386,43 @@ func (h *KnowledgeBaseHandler) ListKnowledgeBases(c *gin.Context) {
 	})
 }
 
+// TogglePinKnowledgeBase godoc
+// @Summary      置顶/取消置顶知识库
+// @Description  切换知识库的置顶状态
+// @Tags         知识库
+// @Accept       json
+// @Produce      json
+// @Param        id  path      string  true  "知识库ID"
+// @Success      200  {object}  map[string]interface{}  "更新后的知识库"
+// @Failure      404  {object}  errors.AppError         "知识库不存在"
+// @Security     Bearer
+// @Security     ApiKeyAuth
+// @Router       /knowledge-bases/{id}/pin [put]
+func (h *KnowledgeBaseHandler) TogglePinKnowledgeBase(c *gin.Context) {
+	ctx := c.Request.Context()
+	id := c.Param("id")
+	if id == "" {
+		c.Error(apperrors.NewBadRequestError("knowledge base ID is required"))
+		return
+	}
+
+	kb, err := h.service.TogglePinKnowledgeBase(ctx, id)
+	if err != nil {
+		if stderrors.Is(err, repository.ErrKnowledgeBaseNotFound) {
+			c.Error(apperrors.NewNotFoundError("knowledge base not found"))
+			return
+		}
+		logger.ErrorWithFields(ctx, err, nil)
+		c.Error(apperrors.NewInternalServerError(err.Error()))
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"data":    kb,
+	})
+}
+
 // UpdateKnowledgeBaseRequest defines the request body structure for updating a knowledge base
 type UpdateKnowledgeBaseRequest struct {
 	Name        string                     `json:"name"        binding:"required"`

internal/router/router.go

@@ -246,6 +246,8 @@ func RegisterKnowledgeBaseRoutes(r *gin.RouterGroup, handler *handler.KnowledgeB
 		kb.PUT("/:id", handler.UpdateKnowledgeBase)
 		// 删除知识库
 		kb.DELETE("/:id", handler.DeleteKnowledgeBase)
+		// 置顶/取消置顶知识库
+		kb.PUT("/:id/pin", handler.TogglePinKnowledgeBase)
 		// 混合搜索
 		kb.GET("/:id/hybrid-search", handler.HybridSearch)
 		// 拷贝知识库

internal/types/interfaces/knowledgebase.go

@@ -80,6 +80,9 @@ type KnowledgeBaseService interface {
 	//   - Possible errors such as not existing, insufficient permissions, etc.
 	DeleteKnowledgeBase(ctx context.Context, id string) error
 
+	// TogglePinKnowledgeBase toggles the pin status of a knowledge base
+	TogglePinKnowledgeBase(ctx context.Context, id string) (*types.KnowledgeBase, error)
+
 	// HybridSearch performs hybrid search (vector + keywords) in the knowledge base
 	// Parameters:
 	//   - ctx: Context information
@@ -190,4 +193,7 @@ type KnowledgeBaseRepository interface {
 	// Returns:
 	//   - Possible errors such as record not existing, database errors, etc.
 	DeleteKnowledgeBase(ctx context.Context, id string) error
+
+	// TogglePinKnowledgeBase toggles the pin status of a knowledge base
+	TogglePinKnowledgeBase(ctx context.Context, id string, tenantID uint64) (*types.KnowledgeBase, error)
 }

internal/types/knowledgebase.go

@@ -70,6 +70,10 @@ type KnowledgeBase struct {
 	FAQConfig *FAQConfig `yaml:"faq_config"              json:"faq_config"              gorm:"column:faq_config;type:json"`
 	// QuestionGenerationConfig stores question generation configuration for document knowledge bases
 	QuestionGenerationConfig *QuestionGenerationConfig `yaml:"question_generation_config" json:"question_generation_config" gorm:"column:question_generation_config;type:json"`
+	// Whether this knowledge base is pinned to the top of the list
+	IsPinned bool `yaml:"is_pinned"               json:"is_pinned"               gorm:"default:false"`
+	// Time when the knowledge base was pinned (nil if not pinned)
+	PinnedAt *time.Time `yaml:"pinned_at"               json:"pinned_at"`
 	// Creation time of the knowledge base
 	CreatedAt time.Time `yaml:"created_at"              json:"created_at"`
 	// Last updated time of the knowledge base

migrations/versioned/000016_add_kb_pinned.down.sql

@@ -0,0 +1,3 @@
+-- Remove pin (置顶) support from knowledge bases
+ALTER TABLE knowledge_bases DROP COLUMN IF EXISTS pinned_at;
+ALTER TABLE knowledge_bases DROP COLUMN IF EXISTS is_pinned;

migrations/versioned/000016_add_kb_pinned.up.sql

@@ -0,0 +1,3 @@
+-- Add pin (置顶) support for knowledge bases
+ALTER TABLE knowledge_bases ADD COLUMN IF NOT EXISTS is_pinned BOOLEAN NOT NULL DEFAULT false;
+ALTER TABLE knowledge_bases ADD COLUMN IF NOT EXISTS pinned_at TIMESTAMP WITH TIME ZONE NULL;