fix: overhaul default model settings across workflow apps and tools

apps/application/flow/step_node/ai_chat_step_node/impl/base_chat_node.py

@@ -205,8 +205,7 @@ def execute(
                 model_params_setting = reference_data.get("model_params_setting")
         elif model_id_type == "default":
             default_setting = self.workflow_manage.get_default_model_setting("LLM")
-            if default_setting.get("model_id"):
-                model_id = default_setting.get("model_id")
+            model_id = default_setting.get("model_id")
             model_params_setting = default_setting.get("model_params_setting", model_params_setting)
         if model_id is None or model_id == "":
             raise Exception(_("Model is not allowed to be empty"))

apps/application/flow/step_node/image_generate_step_node/impl/base_image_generate_node.py

@@ -38,8 +38,7 @@ def execute(self, model_id, prompt, negative_prompt, dialogue_number, dialogue_t
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('TTI')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         if model_id is None or model_id == '':

apps/application/flow/step_node/image_to_video_step_node/impl/base_image_to_video_node.py

@@ -41,8 +41,7 @@ def execute(self, model_id, prompt, negative_prompt, dialogue_number, dialogue_t
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('ITV')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
         if model_id is None or model_id == '':
             raise Exception(_('Model is not allowed to be empty'))

apps/application/flow/step_node/image_understand_step_node/impl/base_image_understand_node.py

@@ -154,8 +154,7 @@ def execute(self, model_id, system, prompt, dialogue_number, dialogue_type, hist
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('IMAGE')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         if model_id is None or model_id == '':

apps/application/flow/step_node/intent_node/impl/base_intent_node.py

@@ -66,8 +66,7 @@ def execute(self, model_id, dialogue_number, history_chat_record, user_input, br
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('LLM')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
         if not model_id:
             raise Exception(_('Model is not allowed to be empty'))

apps/application/flow/step_node/parameter_extraction_node/i_parameter_extraction_node.py

@@ -49,8 +49,7 @@ def _run(self):
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('LLM')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         input_variable = self.workflow_manage.get_reference_field(

apps/application/flow/step_node/question_node/impl/base_question_node.py

@@ -97,8 +97,7 @@ def execute(self, model_id, system, prompt, dialogue_number, history_chat_record
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('LLM')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
         if not model_id:
             raise Exception(_('Model is not allowed to be empty'))

apps/application/flow/step_node/reranker_node/i_reranker_node.py

@@ -75,8 +75,7 @@ def _run(self):
                                                        reference_data.get('model_id', reranker_model_id))
         elif reranker_model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('RERANKER')
-            if default_setting.get('model_id'):
-                reranker_model_id = default_setting.get('model_id')
+            reranker_model_id = default_setting.get('model_id')
         if reranker_model_id is None or reranker_model_id == '':
             raise Exception(_('Model is not allowed to be empty'))
 

apps/application/flow/step_node/speech_to_text_step_node/impl/base_speech_to_text_node.py

@@ -34,8 +34,7 @@ def execute(self, stt_model_id, audio, model_params_setting=None, stt_model_id_t
                 model_params_setting = reference_data.get('model_params_setting')
         elif stt_model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('STT')
-            if default_setting.get('model_id'):
-                stt_model_id = default_setting.get('model_id')
+            stt_model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         from django.utils.translation import gettext_lazy as _

apps/application/flow/step_node/text_to_speech_step_node/impl/base_text_to_speech_node.py

@@ -58,8 +58,7 @@ def execute(self, tts_model_id,
                 model_params_setting = reference_data.get('model_params_setting')
         elif tts_model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('TTS')
-            if default_setting.get('model_id'):
-                tts_model_id = default_setting.get('model_id')
+            tts_model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         from django.utils.translation import gettext_lazy as _

apps/application/flow/step_node/text_to_video_step_node/impl/base_text_to_video_node.py

@@ -39,8 +39,7 @@ def execute(self, model_id, prompt, negative_prompt, dialogue_number, dialogue_t
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('TTV')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         if model_id is None or model_id == '':

apps/application/flow/step_node/video_understand_step_node/impl/base_video_understand_node.py

@@ -149,8 +149,7 @@ def execute(self, model_id, system, prompt, dialogue_number, dialogue_type, hist
                 model_params_setting = reference_data.get('model_params_setting')
         elif model_id_type == 'default':
             default_setting = self.workflow_manage.get_default_model_setting('IMAGE')
-            if default_setting.get('model_id'):
-                model_id = default_setting.get('model_id')
+            model_id = default_setting.get('model_id')
             model_params_setting = default_setting.get('model_params_setting', model_params_setting)
 
         from django.utils.translation import gettext_lazy as _

apps/application/serializers/application.py

@@ -54,6 +54,7 @@
 from langchain_mcp_adapters.client import MultiServerMCPClient
 from maxkb.conf import PROJECT_DIR
 from maxkb.const import CONFIG
+from models_provider.base_model_provider import ModelTypeConst
 from models_provider.models import Model
 from models_provider.tools import get_model_instance_by_model_workspace_id
 from rest_framework import serializers, status
@@ -97,6 +98,17 @@ def _walk_workflow_nodes(work_flow, collector):
 }
 
 
+def _default_model_not_configured_message(node_name: str, model_type: str) -> str:
+    """节点选了默认模型但该类别默认模型未配置时的报错,与前端「{节点名称}节点，{模型类别}的默认模型未配置」文案一致。"""
+    try:
+        model_type_label = str(ModelTypeConst[model_type].value['message'])
+    except Exception:
+        model_type_label = model_type
+    return _(
+        "{node_name} Node, the default model for {model_type_label} is not configured"
+    ).format(node_name=node_name, model_type_label=model_type_label)
+
+
 def validate_workflow_default_models(work_flow, default_model_setting):
     """发布前校验:节点选择「默认模型」但对应类别默认模型未配置时,禁止发布并定位。"""
     if not work_flow:
@@ -117,10 +129,7 @@ def validate_workflow_default_models(work_flow, default_model_setting):
                         and not ((default_model_setting or {}).get(default_model_type, {}) or {}).get('model_id')):
                     raise AppApiException(
                         500,
-                        _(
-                            "{node_name} selected the default model, but the default model "
-                            "of this type is not configured."
-                        ).format(node_name=node_name),
+                        _default_model_not_configured_message(node_name, default_model_type),
                     )
         if model_type is not None:
             # 取该节点实际使用的 model_id_type 字段(custom/reference/default)
@@ -142,10 +151,7 @@ def validate_workflow_default_models(work_flow, default_model_setting):
             ).get("model_id"):
                 raise AppApiException(
                     500,
-                    _(
-                        "{node_name} selected the default model, but the default model "
-                        "of this type is not configured."
-                    ).format(node_name=node_name),
+                    _default_model_not_configured_message(node_name, model_type),
                 )
         if node_type == "loop-node":
             validate_workflow_default_models(node_data.get("loop_body"), default_model_setting)
@@ -465,6 +471,7 @@ class WorkflowRequest(serializers.Serializer):
             required=False, allow_null=True, allow_blank=True, max_length=102400, label=_("Opening remarks")
         )
         folder_id = serializers.CharField(required=True, label=_("folder id"))
+        default_model_setting = serializers.DictField(required=False, label=_("Default model settings"))
 
         @staticmethod
         def to_application_model(user_id: str, workspace_id: str, application: Dict):
@@ -497,6 +504,7 @@ def to_application_model(user_id: str, workspace_id: str, application: Dict):
                 file_upload_enable=application.get("file_upload_enable", False),
                 file_upload_setting=application.get("file_upload_setting", {}),
                 work_flow=default_workflow,
+                default_model_setting=application.get("default_model_setting") or {},
             )
 
     class SimplateRequest(serializers.Serializer):

apps/locales/en_US/LC_MESSAGES/django.po

@@ -8691,6 +8691,9 @@ msgstr ""
 msgid "{node_name} selected the default model, but the default model of this type is not configured."
 msgstr ""
 
+msgid "{node_name} Node, the default model for {model_type_label} is not configured"
+msgstr ""
+
 msgid "Authentication failed. Please verify that the parameters are correct"
 msgstr ""
 

apps/locales/zh_CN/LC_MESSAGES/django.po

@@ -8815,6 +8815,9 @@ msgstr "图生视频"
 msgid "{node_name} selected the default model, but the default model of this type is not configured."
 msgstr "{node_name}选择了默认模型，但未配置该类默认模型"
 
+msgid "{node_name} Node, the default model for {model_type_label} is not configured"
+msgstr "{node_name} 节点，{model_type_label}的默认模型未配置"
+
 msgid "Authentication failed. Please verify that the parameters are correct"
 msgstr "认证失败，请检查参数是否正确"
 

apps/locales/zh_Hant/LC_MESSAGES/django.po

@@ -8815,6 +8815,9 @@ msgstr "圖生視頻"
 msgid "{node_name} selected the default model, but the default model of this type is not configured."
 msgstr "{node_name}選擇了預設模型，但未配置該類預設模型"
 
+msgid "{node_name} Node, the default model for {model_type_label} is not configured"
+msgstr "{node_name} 節點，{model_type_label}的預設模型未配置"
+
 msgid "Authentication failed. Please verify that the parameters are correct"
 msgstr "認證失敗，請檢查參數是否正確"
 

apps/tools/serializers/tool.py

@@ -524,7 +524,12 @@ def insert(self, instance, with_valid=True):
                 }
             ).auth_resource(str(tool_id))
             if instance.get("tool_type") == ToolType.WORKFLOW:
-                ToolWorkflow(id=uuid.uuid7(), tool_id=tool_id, work_flow=instance.get("work_flow", {})).save()
+                ToolWorkflow(
+                    id=uuid.uuid7(),
+                    tool_id=tool_id,
+                    work_flow=instance.get("work_flow", {}),
+                    default_model_setting=instance.get("default_model_setting") or {},
+                ).save()
             # 如果是SKILL类型的工具，修改file表中对应的记录
             if instance.get("tool_type") == ToolType.SKILL:
                 file_id = instance.get("code")

ui/src/components/workflow-dropdown-menu/default-model-setting/index.vue

@@ -1,6 +1,6 @@
 <template>
   <div
-    v-show="show"
+    v-if="show"
     v-click-outside="handleClickOutside"
     class="default-model-setting-menu workflow-dropdown-menu border border-r-6 white-bg"
   >
@@ -18,11 +18,12 @@
               @change="(val: any) => handleModelChange(item.type, val)"
               showFooter
               clearable
+              :disabled="readonly"
               style="flex: 1; min-width: 0"
             />
             <el-button
               class="ml-8"
-              :disabled="!modelSetting[item.type].model_id"
+              :disabled="readonly || !modelSetting[item.type].model_id || item.type === 'RERANKER'"
               @click="openModelParam(item)"
               icon="Operation"
             />
@@ -31,10 +32,10 @@
       </el-form>
     </el-scrollbar>
     <div class="flex-between p-12">
-      <el-button @click="applyDefaultModelToAll">
+      <el-button :disabled="readonly" @click="applyDefaultModelToAll">
         {{ $t('workflow.setting.applyToAll') }}
       </el-button>
-      <el-button type="primary" @click="handleSave">
+      <el-button type="primary" :disabled="readonly || !hasChanges" @click="handleSave">
         {{ $t('common.save') }}
       </el-button>
     </div>
@@ -54,6 +55,7 @@ const props = defineProps({
   modelValue: { type: Object, default: () => ({}) },
   show: { type: Boolean, default: false },
   workflowRef: { type: Object, default: null },
+  readonly: { type: Boolean, default: false },
 })
 const emit = defineEmits(['update:modelValue', 'save', 'close'])
 
@@ -99,6 +101,8 @@ watch(
       loadModelOptions(type)
     }
   },
+  // 面板改为 v-if 挂载:每次打开都是全新实例,watch 需 immediate 在挂载时即同步暂存副本
+  { immediate: true },
 )
 
 function loadModelOptions(type: string) {
@@ -115,9 +119,8 @@ function loadModelOptions(type: string) {
 
 function handleModelChange(type: string, _val: any) {
   modelSetting.value[type].model_params_setting = {}
-  // 改动实时同步到父层 detail.default_model_setting,使「未点面板保存就发布」也能带上本次编辑;
-  // 节点上的 DefaultModelDisplay 也会随之实时更新
-  emit('update:modelValue', { ...modelSetting.value })
+  // 只改动面板内的暂存副本 modelSetting,不实时同步到父层 detail.default_model_setting;
+  // 未点「保存」前,节点默认模型模式不会取到未持久化的配置(发布校验/调试行为一致)
 }
 
 function openModelParam(item: { type: string }) {
@@ -131,12 +134,40 @@ function refreshModelParam(paramData: any) {
   const type = currentModelType.value
   if (modelSetting.value[type]?.model_id) {
     modelSetting.value[type].model_params_setting = paramData
-    emit('update:modelValue', { ...modelSetting.value })
   }
 }
 
-function handleSave() {
+// 暂存副本与已持久化的 detail.default_model_setting(props.modelValue)是否有实质差异。
+// modelSetting 固定含全部 8 个类别(未配置为 {}),而 props.modelValue 仅含已配置类别,
+// 故不能直接整对象序列化比较;按类别比较 model_id 与参数即可。
+// 只读时无任何可编辑操作,hasChanges 恒为 false。
+const hasChanges = computed(
+  () =>
+    !props.readonly &&
+    defaultModelTypes.some(({ type }) => {
+      const cur = modelSetting.value[type] || {}
+      const base = (props.modelValue || {})[type] || {}
+      return (
+        (cur.model_id || '') !== (base.model_id || '') ||
+        JSON.stringify(cur.model_params_setting || {}) !== JSON.stringify(base.model_params_setting || {})
+      )
+    }),
+)
+
+function commitSetting() {
   emit('update:modelValue', { ...modelSetting.value })
+}
+
+// 将暂存副本重置为已持久化的配置(用于「不保存」丢弃暂存)。
+function resetSetting() {
+  modelSetting.value = { ...EMPTY_SETTING }
+  for (const { type } of defaultModelTypes) {
+    modelSetting.value[type] = JSON.parse(JSON.stringify((props.modelValue as any)?.[type] || {}))
+  }
+}
+
+function handleSave() {
+  commitSetting()
   emit('save')
 }
 
@@ -197,13 +228,45 @@ function applyDefaultModelToAll() {
   })
 }
 
-function handleClickOutside(e: MouseEvent, _e2?: MouseEvent) {
+async function handleClickOutside(e: MouseEvent, _e2?: MouseEvent) {
+  // 面板用 v-show 隐藏(未卸载),v-click-outside 的监听仍常驻 document;
+  // 隐藏后点击任意处不应再触发关闭/确认逻辑。
+  if (!props.show) return
   const target = e.target as HTMLElement | null
   // ModelSelect 下拉(popper-class select-model)与参数弹窗(el-dialog append-to-body 及其 .el-overlay 遮罩)
   // 都 teleport 到 body,不在面板 DOM 树内,v-click-outside 会误判为"面板外点击"。
-  // 此处显式排除:点击这两类浮层内(含弹窗遮罩)视为面板内交互,不关闭。
+  // 此处显式排除:点击这两类浮层内(含弹窗遮罩、确认弹窗)视为面板内交互,不关闭。
   if (target && (target.closest('.select-model') || target.closest('.el-overlay'))) return
-  emit('close')
+  if (!hasChanges.value) {
+    // 无未保存修改,直接关闭
+    emit('close')
+    return
+  }
+  // 有未保存修改,弹确认:「保存修改」/「不保存」/「取消(关闭弹窗)」
+  try {
+    const action = await MsgConfirm(
+      t('common.tip'),
+      t('workflow.setting.defaultModelSettingUnsaved'),
+      {
+        type: 'warning',
+        confirmButtonText: t('workflow.setting.saveChanges'),
+        cancelButtonText: t('workflow.setting.discardChanges'),
+        distinguishCancelAndClose: true,
+      },
+    )
+    // 保存修改并关闭
+    if (action === 'confirm') {
+      commitSetting()
+      emit('save')
+      emit('close')
+    }
+  } catch (action: any) {
+    // cancel → 选择「不保存」,丢弃暂存修改,关闭面板;close → 取消,保持面板打开
+    if (action === 'close') return
+    // 丢弃暂存,重置为已持久化配置,避免隐藏后 hasChanges 残留导致再次点击又弹确认
+    resetSetting()
+    emit('close')
+  }
 }
 </script>
 <style lang="scss">

ui/src/locales/lang/en-US/views/application.ts

@@ -55,6 +55,7 @@ After disabling, the long-term memory of the conversation users will be cleared,
     defaultModel: 'Default Model',
     custom: 'Custom',
     modelRequiredMessage: 'Please select a long-term memory model',
+    modelSettingTip: 'The model can be configured in "Long-Term Memory Settings"',
   },
   form: {
     appName: {