Feat: Fixed the issue where the newly created agent begin node displayed "undefined". #10427 (#12348)

### What problem does this PR solve?
Feat: Fixed the issue where the newly created agent begin node displayed
"undefined". #10427

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/constants/agent.tsx

@@ -211,3 +211,14 @@ export const WebhookJWTAlgorithmList = [
   'ps512',
   'none',
 ] as const;
+
+export enum AgentDialogueMode {
+  Conversational = 'conversational',
+  Task = 'task',
+  Webhook = 'Webhook',
+}
+
+export const initialBeginValues = {
+  mode: AgentDialogueMode.Conversational,
+  prologue: `Hi! I'm your assistant. What can I do for you?`,
+};

web/src/hooks/use-agent-request.ts

@@ -1,7 +1,7 @@
 import { FileUploadProps } from '@/components/file-upload';
 import { useHandleFilterSubmit } from '@/components/list-filter-bar/use-handle-filter-submit';
 import message from '@/components/ui/message';
-import { AgentGlobals } from '@/constants/agent';
+import { AgentGlobals, initialBeginValues } from '@/constants/agent';
 import {
   IAgentLogsRequest,
   IAgentLogsResponse,
@@ -76,6 +76,7 @@ export const EmptyDsl = {
         data: {
           label: 'Begin',
           name: 'begin',
+          form: initialBeginValues,
         },
         sourcePosition: 'left',
         targetPosition: 'right',

web/src/pages/agent/canvas/node/begin-node.tsx

@@ -13,6 +13,7 @@ import {
 } from '../../constant';
 import { BeginFormSchemaType } from '../../form/begin-form/schema';
 import { useBuildWebhookUrl } from '../../hooks/use-build-webhook-url';
+import { useIsPipeline } from '../../hooks/use-is-pipeline';
 import OperatorIcon from '../../operator-icon';
 import { LabelCard } from './card';
 import { CommonHandle } from './handle';
@@ -34,6 +35,8 @@ function InnerBeginNode({
 
   const url = useBuildWebhookUrl();
 
+  const isPipeline = useIsPipeline();
+
   return (
     <NodeWrapper selected={selected} id={id}>
       <CommonHandle
@@ -45,15 +48,17 @@ function InnerBeginNode({
         id={NodeHandleId.Start}
       ></CommonHandle>
 
-      <section className="flex items-center  gap-2">
+      <section className="flex items-center gap-2">
         <OperatorIcon name={data.label as Operator}></OperatorIcon>
         <div className="truncate text-center font-semibold text-sm">
           {t(`flow.begin`)}
         </div>
       </section>
-      <div className="text-accent-primary mt-2 p-1 bg-bg-accent w-fit rounded-sm text-xs">
+      {isPipeline || (
-        {t(`flow.${isWebhookMode ? 'webhook.name' : mode}`)}
+        <div className="text-accent-primary mt-2 p-1 bg-bg-accent w-fit rounded-sm text-xs">
-      </div>
+          {t(`flow.${isWebhookMode ? 'webhook.name' : mode}`)}
+        </div>
+      )}
       {isWebhookMode ? (
         <LabelCard className="mt-2 flex gap-1 items-center">
           <span className="font-bold">URL</span>

web/src/pages/agent/constant/index.tsx

@@ -15,19 +15,15 @@ import {
   initialLlmBaseValues,
 } from '@/constants/agent';
 export {
+  AgentDialogueMode,
   AgentStructuredOutputField,
   JsonSchemaDataType,
   Operator,
+  initialBeginValues,
 } from '@/constants/agent';
 
 export * from './pipeline';
 
-export enum AgentDialogueMode {
-  Conversational = 'conversational',
-  Task = 'task',
-  Webhook = 'Webhook',
-}
-
 import { ModelVariableType } from '@/constants/knowledge';
 import { t } from 'i18next';
 
@@ -109,11 +105,6 @@ export const initialRetrievalValues = {
   },
 };
 
-export const initialBeginValues = {
-  mode: AgentDialogueMode.Conversational,
-  prologue: `Hi! I'm your assistant. What can I do for you?`,
-};
-
 export const initialRewriteQuestionValues = {
   ...initialLlmBaseValues,
   language: '',
@@ -750,6 +741,8 @@ export const NodeMap = {
   [Operator.Loop]: 'loopNode',
   [Operator.LoopStart]: 'loopStartNode',
   [Operator.ExitLoop]: 'exitLoopNode',
+  [Operator.ExcelProcessor]: 'ragNode',
+  [Operator.PDFGenerator]: 'ragNode',
 };
 
 export enum BeginQueryType {

web/src/pages/agent/hooks/use-add-node.ts

@@ -179,6 +179,8 @@ export const useInitializeOperatorParams = () => {
       [Operator.Loop]: initialLoopValues,
       [Operator.LoopStart]: {},
       [Operator.ExitLoop]: {},
+      [Operator.PDFGenerator]: {},
+      [Operator.ExcelProcessor]: {},
     };
   }, [llmId]);