Merge pull request #25 from SuanmoSuanyangTechnology/fix/workflow

Fix/workflow

api/app/controllers/prompt_optimizer_controller.py

@@ -117,7 +117,7 @@ async def get_prompt_opt(
                 user_require=data.message
         ):
             # chunk 是 prompt 的增量内容
-            yield f"event:'message'\ndata: {json.dumps(chunk)}\n\n"
+            yield f"event:message\ndata: {json.dumps(chunk)}\n\n"
 
     return StreamingResponse(
         event_generator(),

api/app/core/workflow/nodes/base_node.py

@@ -29,7 +29,7 @@ class WorkflowState(TypedDict):
 
     # Set of loop node IDs, used for assigning values in loop nodes
     cycle_nodes: list
-    looping: bool
+    looping: Annotated[bool, lambda x, y: x and y]
 
     # Input variables (passed from configured variables)
     # Uses a deep merge function, supporting nested dict updates (e.g., conv.xxx)

api/app/core/workflow/nodes/http_request/node.py

@@ -208,17 +208,12 @@ class HttpRequestNode(BaseNode):
                     retries -= 1
                     if retries > 0:
                         await asyncio.sleep(self.typed_config.retry.retry_interval / 1000)
+                    elif self.typed_config.error_handle.method == HttpErrorHandle.NONE:
+                        raise e
+                except Exception as e:
+                    raise RuntimeError(f"HTTP request node exception: {e}")
             else:
                 match self.typed_config.error_handle.method:
-                    case HttpErrorHandle.NONE:
-                        logger.warning(
-                            f"Node {self.node_id}: HTTP request failed, returning error response"
-                        )
-                        return HttpRequestNodeOutput(
-                            body="",
-                            status_code=resp.status_code,
-                            headers=resp.headers,
-                        ).model_dump()
                     case HttpErrorHandle.DEFAULT:
                         logger.warning(
                             f"Node {self.node_id}: HTTP request failed, returning default result"
@@ -229,3 +224,4 @@ class HttpRequestNode(BaseNode):
                             f"Node {self.node_id}: HTTP request failed, switching to error handling branch"
                         )
                         return "ERROR"
+                raise RuntimeError("http request failed")

api/app/core/workflow/nodes/knowledge/node.py

@@ -203,15 +203,16 @@ class KnowledgeRetrievalNode(BaseNode):
                         rs2 = vector_service.search_by_full_text(query=query, top_k=kb_config.top_k,
                                                                  indices=indices,
                                                                  score_threshold=kb_config.similarity_threshold)
-                        # Deduplicate hybrid retrieval results
+                        # Deduplicate hy    brid retrieval results
                         unique_rs = self._deduplicate_docs(rs1, rs2)
                         vector_service.reranker = self.get_reranker_model()
                         rs.extend(vector_service.rerank(query=query, docs=unique_rs, top_k=kb_config.top_k))
                     case _:
                         raise RuntimeError("Unknown retrieval type")
             vector_service.reranker = self.get_reranker_model()
+            # TODO：其他重排序方式支持
             final_rs = vector_service.rerank(query=query, docs=rs, top_k=self.typed_config.reranker_top_k)
             logger.info(
                 f"Node {self.node_id}: knowledge base retrieval completed, results count: {len(final_rs)}"
             )
-            return [chunk.model_dump() for chunk in final_rs]
+            return [chunk.page_content for chunk in final_rs]

api/app/core/workflow/nodes/llm/config.py

@@ -1,5 +1,7 @@
 """LLM 节点配置"""
 
+from typing import Any
+
 from pydantic import BaseModel, Field, field_validator
 
 from app.core.workflow.nodes.base_config import BaseNodeConfig, VariableDefinition, VariableType
@@ -41,6 +43,11 @@ class LLMNodeConfig(BaseNodeConfig):
         description="模型配置 ID"
     )
 
+    context: Any = Field(
+        default="",
+        description="上下文"
+    )
+
     # 简单模式
     prompt: str | None = Field(
         default=None,

api/app/core/workflow/nodes/llm/node.py

@@ -5,11 +5,13 @@ LLM 节点实现
 """
 
 import logging
+import re
 from typing import Any
 from langchain_core.messages import AIMessage, SystemMessage, HumanMessage
 
 from app.core.workflow.nodes.base_node import BaseNode, WorkflowState
 from app.core.models import RedBearLLM, RedBearModelConfig
+from app.core.workflow.nodes.llm.config import LLMNodeConfig
 from app.db import get_db_context
 from app.models import ModelType
 from app.services.model_service import ModelConfigService
@@ -63,8 +65,15 @@ class LLMNode(BaseNode):
     - user/human: 用户消息（HumanMessage）
     - ai/assistant: AI 消息（AIMessage）
     """
+    def __init__(self, node_config: dict[str, Any], workflow_config: dict[str, Any]):
+        super().__init__(node_config, workflow_config)
+        self.typed_config = LLMNodeConfig(**self.config)
 
-    def _prepare_llm(self, state: WorkflowState,stream:bool = False) -> tuple[RedBearLLM, list | str]:
+    def _render_context(self, message,state):
+        context = f"<context>{self._render_template(self.typed_config.context, state)}</context>"
+        return re.sub(r"{{context}}", context, message)
+
+    def _prepare_llm(self, state: WorkflowState, stream: bool = False) -> tuple[RedBearLLM, list | str]:
         """准备 LLM 实例（公共逻辑）
         
         Args:
@@ -83,6 +92,7 @@ class LLMNode(BaseNode):
             for msg_config in messages_config:
                 role = msg_config.get("role", "user").lower()
                 content_template = msg_config.get("content", "")
+                content_template = self._render_context(content_template, state)
                 content = self._render_template(content_template, state)
 
                 # 根据角色创建对应的消息对象
@@ -153,7 +163,7 @@ class LLMNode(BaseNode):
         Returns:
             LLM 响应消息
         """
-        llm, prompt_or_messages = self._prepare_llm(state,True)
+        llm, prompt_or_messages = self._prepare_llm(state, True)
 
         logger.info(f"节点 {self.node_id} 开始执行 LLM 调用（非流式）")
 

api/app/core/workflow/nodes/memory/node.py

@@ -24,7 +24,7 @@ class MemoryReadNode(BaseNode):
 
             return await MemoryAgentService().read_memory(
                 group_id=end_user_id,
-                message=self.typed_config.message,
+                message=self._render_template(self.typed_config.message, state),
                 config_id=self.typed_config.config_id,
                 search_switch=self.typed_config.search_switch,
                 history=[],
@@ -51,7 +51,7 @@ class MemoryWriteNode(BaseNode):
 
             return await MemoryAgentService().write_memory(
                 group_id=end_user_id,
-                message=self.typed_config.message,
+                message=self._render_template(self.typed_config.message, state),
                 config_id=self.typed_config.config_id,
                 db=db,
                 storage_type="neo4j",

api/app/core/workflow/validator.py

@@ -87,10 +87,11 @@ class WorkflowValidator:
         return graphs
 
     @classmethod
-    def validate(cls, workflow_config: Union[dict[str, Any], Any]) -> tuple[bool, list[str]]:
+    def validate(cls, workflow_config: Union[dict[str, Any], Any], publish=False) -> tuple[bool, list[str]]:
         """验证工作流配置
         
         Args:
+            publish: 发布验证标识
             workflow_config: 工作流配置字典或 WorkflowConfig Pydantic 模型
         
         Returns:
@@ -114,7 +115,7 @@ class WorkflowValidator:
 
         graphs = cls.get_subgraph(workflow_config)
         logger.info(graphs)
-        for graph in graphs:
+        for index, graph in enumerate(graphs):
             nodes = graph.get("nodes", [])
             edges = graph.get("edges", [])
             variables = graph.get("variables", [])
@@ -125,10 +126,11 @@ class WorkflowValidator:
             elif len(start_nodes) > 1:
                 errors.append(f"工作流只能有一个 start 节点，当前有 {len(start_nodes)} 个")
 
-            # 2. 验证 end 节点（至少一个）
+            if index == len(graphs) - 1:
-            end_nodes = [n for n in nodes if n.get("type") == NodeType.END]
+                # 2. 验证 主图end 节点（至少一个）
-            if len(end_nodes) == 0:
+                end_nodes = [n for n in nodes if n.get("type") == NodeType.END]
-                errors.append("工作流必须至少有一个 end 节点")
+                if len(end_nodes) == 0:
+                    errors.append("工作流必须至少有一个 end 节点")
 
             # 3. 验证节点 ID 唯一性
             node_ids = [n.get("id") for n in nodes]
@@ -159,15 +161,17 @@ class WorkflowValidator:
                 elif target not in node_id_set:
                     errors.append(f"边 #{i} 的 target 节点不存在: {target}")
 
-            # 6. 验证所有节点可达（从 start 节点出发）
+            if publish:
-            if start_nodes and not errors:  # 只有在前面验证通过时才检查可达性
+                # 仅在发布时验证所有节点可达
-                reachable = WorkflowValidator._get_reachable_nodes(
+                # 6. 验证所有节点可达（从 start 节点出发）
-                    start_nodes[0]["id"],
+                if start_nodes and not errors:  # 只有在前面验证通过时才检查可达性
-                    edges
+                    reachable = WorkflowValidator._get_reachable_nodes(
-                )
+                        start_nodes[0]["id"],
-                unreachable = node_id_set - reachable
+                        edges
-                if unreachable:
+                    )
-                    errors.append(f"以下节点无法从 start 节点到达: {unreachable}")
+                    unreachable = node_id_set - reachable
+                    if unreachable:
+                        errors.append(f"以下节点无法从 start 节点到达: {unreachable}")
 
             # 7. 检测循环依赖（非 loop 节点）
             if not errors:  # 只有在前面验证通过时才检查循环
@@ -288,7 +292,7 @@ class WorkflowValidator:
             (is_valid, errors): 是否有效和错误列表
         """
         # 先执行基础验证
-        is_valid, errors = WorkflowValidator.validate(workflow_config)
+        is_valid, errors = WorkflowValidator.validate(workflow_config, publish=True)
 
         if not is_valid:
             return False, errors

api/app/services/prompt_optimizer_service.py

@@ -231,9 +231,9 @@ class PromptOptimizerService:
                 if m:
                     prompt_index = m.start()
                     prompt_finished = True
-                    yield {"type": "delta", "content": buffer[idx:prompt_index]}
+                    yield {"content": buffer[idx:prompt_index]}
                 else:
-                    yield {"type": "delta", "content": cache[idx:]}
+                    yield {"content": cache[idx:]}
                     if len(cache) != 0:
                         idx = len(cache)
 
@@ -249,8 +249,8 @@ class PromptOptimizerService:
             role=RoleType.ASSISTANT,
             content=desc
         )
-
+        variables = self.parser_prompt_variables(optim_result.get("prompt"))
-        yield {"type": "done", "desc": optim_result.get("desc")}
+        yield {"desc": optim_result.get("desc"), "variables": variables}
 
     @staticmethod
     def parser_prompt_variables(prompt: str):