Fix knowledge base crash

web/pages/KnowledgeBase.tsx

@@ -2,7 +2,7 @@ import React, { useEffect, useState, useRef } from 'react';
 import { Search, Plus, FileText, Upload, ArrowLeft, CloudUpload, File as FileIcon, X, Pencil, Trash2, Settings2, MoreHorizontal } from 'lucide-react';
 import { Button, Input, TableHeader, TableRow, TableHead, TableCell, Card, Dialog, Badge } from '../components/UI';
 import { KnowledgeBase } from '../types';
-import { createKnowledgeBase, deleteKnowledgeBase, deleteKnowledgeDocument, fetchKnowledgeBases, fetchLLMModels, updateKnowledgeBase, uploadKnowledgeDocument } from '../services/backendApi';
+import { createKnowledgeBase, deleteKnowledgeBase, deleteKnowledgeDocument, fetchKnowledgeBaseById, fetchKnowledgeBases, fetchLLMModels, updateKnowledgeBase, uploadKnowledgeDocument } from '../services/backendApi';
 
 const EMBEDDING_OPTIONS = [
   'text-embedding-3-small',
@@ -19,6 +19,7 @@ export const KnowledgeBasePage: React.FC = () => {
   const [isKbModalOpen, setIsKbModalOpen] = useState(false);
   const [editingKb, setEditingKb] = useState<KnowledgeBase | null>(null);
   const [isLoading, setIsLoading] = useState(true);
+  const [isDetailLoading, setIsDetailLoading] = useState(false);
   const [embeddingOptions, setEmbeddingOptions] = useState<string[]>(EMBEDDING_OPTIONS);
   const [hasDbEmbeddingModels, setHasDbEmbeddingModels] = useState(false);
   const [openMenuKbId, setOpenMenuKbId] = useState<string | null>(null);
@@ -79,9 +80,19 @@ export const KnowledgeBasePage: React.FC = () => {
     return () => document.removeEventListener('click', onDocClick);
   }, []);
 
-  const handleSelect = (kb: KnowledgeBase) => {
+  const handleSelect = async (kb: KnowledgeBase) => {
     setSelectedKb(kb);
     setView('detail');
+    setIsDetailLoading(true);
+    try {
+      const fullKb = await fetchKnowledgeBaseById(kb.id);
+      setSelectedKb(fullKb);
+    } catch (error: any) {
+      console.error(error);
+      alert(error?.message || '加载知识库详情失败。');
+    } finally {
+      setIsDetailLoading(false);
+    }
   };
 
   const openCreateKb = () => {
@@ -169,22 +180,26 @@ export const KnowledgeBasePage: React.FC = () => {
   if (view === 'detail' && selectedKb) {
     return (
       <div className="py-4 pb-10">
-        <KnowledgeBaseDetail
-          kb={selectedKb}
-          onBack={() => setView('list')}
-          onImport={() => setIsUploadOpen(true)}
-          onEdit={() => openEditKb(selectedKb)}
-          onDelete={() => handleDeleteKb(selectedKb)}
-          onDeleteDocument={async (docId) => {
-            try {
-              await deleteKnowledgeDocument(selectedKb.id, docId);
-              await refreshKnowledgeBases();
-            } catch (error: any) {
-              console.error(error);
-              alert(error?.message || '删除文档失败。');
-            }
-          }}
-        />
+        {isDetailLoading ? (
+          <div className="rounded-lg border border-white/10 bg-card/40 p-8 text-center text-muted-foreground">知识库详情加载中...</div>
+        ) : (
+          <KnowledgeBaseDetail
+            kb={selectedKb}
+            onBack={() => setView('list')}
+            onImport={() => setIsUploadOpen(true)}
+            onEdit={() => openEditKb(selectedKb)}
+            onDelete={() => handleDeleteKb(selectedKb)}
+            onDeleteDocument={async (docId) => {
+              try {
+                await deleteKnowledgeDocument(selectedKb.id, docId);
+                await refreshKnowledgeBases();
+              } catch (error: any) {
+                console.error(error);
+                alert(error?.message || '删除文档失败。');
+              }
+            }}
+          />
+        )}
         <UploadModal
           kbId={selectedKb.id}
           isOpen={isUploadOpen}
@@ -208,6 +223,8 @@ export const KnowledgeBasePage: React.FC = () => {
           setKbChunkSize={setKbChunkSize}
           kbChunkOverlap={kbChunkOverlap}
           setKbChunkOverlap={setKbChunkOverlap}
+          embeddingOptions={embeddingOptions}
+          hasDbEmbeddingModels={hasDbEmbeddingModels}
         />
       </div>
     );

web/services/backendApi.ts

@@ -527,6 +527,11 @@ export const fetchKnowledgeBases = async (): Promise<KnowledgeBase[]> => {
   return list.map((item) => mapKnowledgeBase(item));
 };
 
+export const fetchKnowledgeBaseById = async (kbId: string): Promise<KnowledgeBase> => {
+  const response = await apiRequest<AnyRecord>(`/knowledge/bases/${kbId}`);
+  return mapKnowledgeBase(response);
+};
+
 export const createKnowledgeBase = async (data: {
   name: string;
   description?: string;