From 2ceddb5c40266ce9f203985da7f3d9adca8c7fc7 Mon Sep 17 00:00:00 2001
From: shaohuzhang1 <shaohu.zhang@fit2cloud.com>
Date: Thu, 20 Jun 2024 18:29:13 +0800
Subject: [PATCH] =?UTF-8?q?=20feat:=20=E5=B7=A5=E4=BD=9C=E6=B5=81?=
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---
 ui/src/workflow/common/app-node.ts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ui/src/workflow/common/app-node.ts b/ui/src/workflow/common/app-node.ts
index fcfac040e..a46b7ee2a 100644
--- a/ui/src/workflow/common/app-node.ts
+++ b/ui/src/workflow/common/app-node.ts
@@ -110,12 +110,20 @@ class AppNodeModel extends HtmlResize.model {
   }
   setAttributes() {
     this.width = this.properties?.width || 340
+
     const circleOnlyAsTarget = {
       message: '只允许从右边的锚点连出',
       validate: (sourceNode: any, targetNode: any, sourceAnchor: any) => {
         return sourceAnchor.type === 'right'
       }
     }
+
+    this.sourceRules.push({
+      message: '只允许连一个节点',
+      validate: (sourceNode: any, targetNode: any, sourceAnchor: any) => {
+        return !this.graphModel.edges.some((item) => item.sourceNodeId === sourceNode.id)
+      }
+    })
     this.sourceRules.push(circleOnlyAsTarget)
     this.targetRules.push({
       message: '只允许连接左边的锚点',