chore: child node can not single run

web/app/components/workflow/nodes/_base/components/node-control.tsx

@@ -36,6 +36,7 @@ const NodeControl: FC<NodeControlProps> = ({
     setOpen(newOpen)
   }, [])
 
+  const isChildNode = !!(data.isInIteration || data.isInLoop)
   return (
     <div
       className={`
@@ -49,7 +50,7 @@ const NodeControl: FC<NodeControlProps> = ({
         onClick={e => e.stopPropagation()}
       >
         {
-          canRunBySingle(data.type) && (
+          canRunBySingle(data.type, isChildNode) && (
             <div
               className='flex h-5 w-5 cursor-pointer items-center justify-center rounded-md hover:bg-state-base-hover'
               onClick={() => {

web/app/components/workflow/nodes/_base/components/panel-operator/panel-operator-popup.tsx

@@ -83,14 +83,16 @@ const PanelOperatorPopup = ({
 
   const link = useNodeHelpLink(data.type)
 
+  const isChildNode = !!(data.isInIteration || data.isInLoop)
+
   return (
     <div className='w-[240px] rounded-lg border-[0.5px] border-components-panel-border bg-components-panel-bg shadow-xl'>
       {
-        (showChangeBlock || canRunBySingle(data.type)) && (
+        (showChangeBlock || canRunBySingle(data.type, isChildNode)) && (
           <>
             <div className='p-1'>
               {
-                canRunBySingle(data.type) && (
+                canRunBySingle(data.type, isChildNode) && (
                   <div
                     className={`
                       flex h-8 cursor-pointer items-center rounded-lg px-3 text-sm text-text-secondary

web/app/components/workflow/nodes/_base/components/workflow-panel/index.tsx

@@ -142,7 +142,8 @@ const BasePanel: FC<BasePanelProps> = ({
     saveStateToHistory(WorkflowHistoryEvent.NodeDescriptionChange)
   }, [handleNodeDataUpdateWithSyncDraft, id, saveStateToHistory])
 
-  const isSupportSingleRun = canRunBySingle(data.type)
+  const isChildNode = !!(data.isInIteration || data.isInLoop)
+  const isSupportSingleRun = canRunBySingle(data.type, isChildNode)
   const appDetail = useAppStore(state => state.appDetail)
 
   const {

web/app/components/workflow/nodes/assigner/use-single-run-form-params.ts

@@ -29,7 +29,6 @@ const useSingleRunFormParams = ({
                     && item.operation !== WriteMode.removeFirst && item.operation !== WriteMode.removeLast
                     && !writeModeTypesNum.includes(item.operation)
   }).map(item => item.value as ValueSelector)
-  console.log(vars)
 
   const forms = useMemo(() => {
     const varInputs = varSelectorsToVarInputs(vars)

web/app/components/workflow/utils/workflow.ts

@@ -19,7 +19,10 @@ import {
 import type { IterationNodeType } from '../nodes/iteration/types'
 import type { LoopNodeType } from '../nodes/loop/types'
 
-export const canRunBySingle = (nodeType: BlockEnum) => {
+export const canRunBySingle = (nodeType: BlockEnum, isChildNode: boolean) => {
+  // child node means in iteration or loop. Set value to iteration(or loop) may cause variable not exit problem in backend.
+  if(isChildNode && nodeType === BlockEnum.Assigner)
+    return false
   return nodeType === BlockEnum.LLM
     || nodeType === BlockEnum.KnowledgeRetrieval
     || nodeType === BlockEnum.Code