Files
AgentLab/backend/app/api/workflows.py
T
ThearchyHelios b418c0d951 最终验收:148 项逐条复核(原审查 142 条 + 平台问题 6 条),返工后 145 项解决
四组验收员拿审查原文在沙箱里逐条复现:133 项已解决、15 项部分解决、没有未解决或回退的;
另发现 10 个新问题。按归属返工后,剩 3 项低严重度:MCP / 自定义工具的危险标记(待用户拍板)、
选中环与运行态同色(需跨三处协调改)、「接着跑」这个说法是否更换(多处引用原文,暂留)。

这次返工改了
- 右栏:老运行没有 active_ms 时执行时长改按航迹算,不再显示最后一段的「22 ms」;循环出口行不再差一;
  取消在一轮中途时泳道脚注不写「0 ms」;分支、循环出口显示 case 的说明而不是 key;
  展开已完成轮次不再误报「N 条新进展」;旧数据里已完成的模型调用不再一律标成「已取消」
- 后端:跳过事件带节点名和类型;restore 版本时把已发布 / 受管退回草稿;只是打开旧会话不再把它顶到最前、
  标成「刚刚」;协作团队全程没有成员交付成果、调度者却判完成时按失败或降档处理,不再当成功交付
- 画布:循环体有「循环体 · 最多 N 轮」的底框,出口标签不再被自己的走线穿过;运行中校验角标退让;
  768 宽下工具栏不溢出;运行被拦时点名是哪个节点;正式运行弹层写明以谁的名义发起
- 问数据:离线时能力条不把「没取回来」说成 0;窄屏下会话列表收起;check-chat 在零点前后不再误报
- 公共层:FastAPI 422 校验错误翻成中文,不再把英文原文透给用户

验证(沙箱):tsc 干净,pytest 878 passed(两遍),check-all 15 项检查全绿。
2026-09-28 02:42:40 +08:00

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from __future__ import annotations
from typing import Any
from fastapi import APIRouter, Depends, Header, HTTPException
from pydantic import BaseModel, Field
from sqlalchemy import func, select
from sqlalchemy.ext.asyncio import AsyncSession
from app.core.errors import graph_error
from app.api.runs import actor_of
from app.core.artifact_store import graph_hash
from app.db.base import get_session
from app.db.models import Run, Workflow, WorkflowVersion
from app.engine.governance import lint_for_publish
from app.engine.schema import GraphSpec, validate_graph
router = APIRouter(prefix="/api/workflows", tags=["workflows"])
_GONE = "这个工作流不存在,可能已经被删了"
class WorkflowIn(BaseModel):
name: str = Field(min_length=1, max_length=200)
description: str = ""
graph: dict[str, Any] = Field(default_factory=dict)
tags: list[str] = Field(default_factory=list)
class WorkflowPatch(BaseModel):
name: str | None = None
description: str | None = None
graph: dict[str, Any] | None = None
tags: list[str] | None = None
note: str = ""
class WorkflowOut(BaseModel):
id: str
name: str
description: str
graph: dict[str, Any]
tags: list[str]
version: int
is_template: bool
status: str = "draft"
published_version: int | None = None
published_by: str | None = None
created_at: Any = None
updated_at: Any = None
run_count: int = 0
model_config = {"from_attributes": True}
@router.get("", response_model=list[WorkflowOut])
async def list_workflows(session: AsyncSession = Depends(get_session)) -> list[WorkflowOut]:
rows = list(
(await session.execute(select(Workflow).order_by(Workflow.updated_at.desc()))).scalars()
)
counts = dict(
(await session.execute(select(Run.workflow_id, func.count(Run.id)).group_by(Run.workflow_id))).all()
)
out: list[WorkflowOut] = []
for row in rows:
item = WorkflowOut.model_validate(row)
item.run_count = counts.get(row.id, 0)
out.append(item)
return out
@router.post("", response_model=WorkflowOut, status_code=201)
async def create_workflow(
payload: WorkflowIn, session: AsyncSession = Depends(get_session)
) -> Workflow:
workflow = Workflow(
name=payload.name,
description=payload.description,
graph=payload.graph,
tags=payload.tags,
)
session.add(workflow)
await session.flush()
session.add(
WorkflowVersion(workflow_id=workflow.id, version=1, graph=payload.graph,
graph_hash=graph_hash(payload.graph), note="初始版本")
)
await session.commit()
await session.refresh(workflow)
return workflow
@router.get("/{workflow_id}", response_model=WorkflowOut)
async def get_workflow(
workflow_id: str, session: AsyncSession = Depends(get_session)
) -> Workflow:
workflow = await session.get(Workflow, workflow_id)
if not workflow:
raise HTTPException(404, _GONE)
return workflow
@router.patch("/{workflow_id}", response_model=WorkflowOut)
async def update_workflow(
workflow_id: str, payload: WorkflowPatch, session: AsyncSession = Depends(get_session)
) -> Workflow:
workflow = await session.get(Workflow, workflow_id)
if not workflow:
raise HTTPException(404, _GONE)
if payload.name is not None:
workflow.name = payload.name
if payload.description is not None:
workflow.description = payload.description
if payload.tags is not None:
workflow.tags = payload.tags
if payload.graph is not None and payload.graph != workflow.graph:
# 图有实际变化才留快照,避免改个名字就堆一堆版本
workflow.graph = payload.graph
workflow.version += 1
session.add(
WorkflowVersion(
workflow_id=workflow.id,
version=workflow.version,
graph=payload.graph,
graph_hash=graph_hash(payload.graph),
note=payload.note,
)
)
# status 说的是**当前画布**的状态,不是"这个工作流曾经发布过"。
# 改完图还挂着 governed,界面上就会显示一张从未过闸的图是受管模板——
# 已发布的那一版仍由 published_version 指着,formal 运行不受影响。
if workflow.status in ("published", "governed"):
workflow.status = "draft"
await session.commit()
await session.refresh(workflow)
return workflow
@router.delete("/{workflow_id}", status_code=204)
async def delete_workflow(
workflow_id: str, session: AsyncSession = Depends(get_session)
) -> None:
workflow = await session.get(Workflow, workflow_id)
if not workflow:
raise HTTPException(404, _GONE)
# 运行记录是 ON DELETE SET NULL:删掉工作流,已结束的运行留着、照样能核对封存;
# 还在跑的那次会失去归属,再也回不到它的画布,所以和删除运行记录一样先停再删
live = await session.scalar(
select(func.count()).select_from(Run).where(
Run.workflow_id == workflow_id, Run.status.in_(("queued", "running"))
)
)
if live:
raise HTTPException(409, f"这个工作流还有 {live} 次运行在进行,现在删除它们会失去归属。先停止运行,再删除")
await session.delete(workflow)
await session.commit()
@router.post("/{workflow_id}/duplicate", response_model=WorkflowOut, status_code=201)
async def duplicate_workflow(
workflow_id: str, session: AsyncSession = Depends(get_session)
) -> Workflow:
source = await session.get(Workflow, workflow_id)
if not source:
raise HTTPException(404, _GONE)
copy = Workflow(
name=f"{source.name} 副本",
description=source.description,
graph=source.graph,
tags=list(source.tags or []),
)
session.add(copy)
await session.commit()
await session.refresh(copy)
return copy
class VersionOut(BaseModel):
id: str
version: int
note: str
created_at: Any = None
model_config = {"from_attributes": True}
@router.get("/{workflow_id}/versions", response_model=list[VersionOut])
async def list_versions(
workflow_id: str, session: AsyncSession = Depends(get_session)
) -> list[WorkflowVersion]:
rows = await session.execute(
select(WorkflowVersion)
.where(WorkflowVersion.workflow_id == workflow_id)
.order_by(WorkflowVersion.version.desc())
)
return list(rows.scalars())
class VersionDetailOut(VersionOut):
workflow_id: str
graph: dict[str, Any]
graph_hash: str | None = None
#: 这一版入口节点声明的字段。正式运行跑的是已发布的那一版,表单得照它来填——
#: 画布上改过入口字段时,拿当前画布的字段去跑已发布版本会传错参数
input_fields: list[dict[str, Any]] = Field(default_factory=list)
published: bool = False
@router.get("/{workflow_id}/versions/{version}", response_model=VersionDetailOut)
async def get_version(
workflow_id: str, version: int, session: AsyncSession = Depends(get_session)
) -> VersionDetailOut:
"""取某一版的完整图。"""
workflow = await session.get(Workflow, workflow_id)
if not workflow:
raise HTTPException(404, _GONE)
snapshot = (
await session.execute(
select(WorkflowVersion).where(
WorkflowVersion.workflow_id == workflow_id,
WorkflowVersion.version == version,
)
)
).scalar_one_or_none()
if not snapshot:
raise HTTPException(404, f"「{workflow.name}」没有 v{version} 这个版本")
graph = snapshot.graph or {}
fields: list[dict[str, Any]] = []
for node in graph.get("nodes") or []:
if node.get("type") == "input":
fields.extend(
f for f in ((node.get("data") or {}).get("config") or {}).get("fields") or []
if isinstance(f, dict)
)
return VersionDetailOut(
id=snapshot.id, version=snapshot.version, note=snapshot.note,
created_at=snapshot.created_at, workflow_id=workflow_id, graph=graph,
graph_hash=snapshot.graph_hash or graph_hash(graph), input_fields=fields,
published=workflow.published_version == snapshot.version,
)
@router.post("/{workflow_id}/versions/{version}/restore", response_model=WorkflowOut)
async def restore_version(
workflow_id: str, version: int, session: AsyncSession = Depends(get_session)
) -> Workflow:
workflow = await session.get(Workflow, workflow_id)
if not workflow:
raise HTTPException(404, _GONE)
snapshot = (
await session.execute(
select(WorkflowVersion).where(
WorkflowVersion.workflow_id == workflow_id,
WorkflowVersion.version == version,
)
)
).scalar_one_or_none()
if not snapshot:
raise HTTPException(404, f"没有 v{version} 这个版本")
workflow.graph = snapshot.graph
workflow.version += 1
session.add(
WorkflowVersion(
workflow_id=workflow.id,
version=workflow.version,
graph=snapshot.graph,
graph_hash=graph_hash(snapshot.graph),
note=f"回滚到 v{version}",
)
)
# 恢复旧版也是改图,和 PATCH 同一条规矩:旧图没过这次的闸,不能挂着受管 / 已发布
if workflow.status in ("published", "governed"):
workflow.status = "draft"
await session.commit()
await session.refresh(workflow)
return workflow
class PublishIn(BaseModel):
level: str = "published" # published | governed
version: int | None = None # 默认发布当前最新版本
@router.post("/{workflow_id}/publish")
async def publish_workflow(
workflow_id: str,
payload: PublishIn,
session: AsyncSession = Depends(get_session),
x_actor: str | None = Header(default=None),
) -> dict[str, Any]:
"""把某个版本立为正式版本。
formal 运行只能从这里发布过的版本发起。governed 级别额外过治理 lint:
错误会挡住发布——这就是"必经检查点"落地的地方。
返回 200 + ok/issues 而不是抛错,让前端能把问题列表渲染出来。
"""
if payload.level not in ("published", "governed"):
raise HTTPException(400, "发布档位只能选「已发布」或「受管」")
workflow = await session.get(Workflow, workflow_id)
if not workflow:
raise HTTPException(404, _GONE)
version = payload.version or workflow.version
snapshot = (
await session.execute(
select(WorkflowVersion).where(
WorkflowVersion.workflow_id == workflow_id,
WorkflowVersion.version == version,
)
)
).scalar_one_or_none()
if not snapshot:
raise HTTPException(404, f"没有 v{version} 这个版本:画布上的改动还没保存,先保存一次再发布")
try:
spec = GraphSpec.model_validate(snapshot.graph)
except Exception as e: # noqa: BLE001
return {"ok": False, "issues": [{"level": "error", "message": f"工作流的结构读不懂:{graph_error(e)}"}]}
issues = [i.model_dump() for i in validate_graph(spec).issues]
issues += [i.model_dump() for i in lint_for_publish(spec, level=payload.level).issues]
if any(i["level"] == "error" for i in issues):
return {"ok": False, "level": payload.level, "version": version, "issues": issues}
if not snapshot.graph_hash:
snapshot.graph_hash = graph_hash(snapshot.graph)
workflow.status = payload.level
workflow.published_version = version
workflow.published_by = actor_of(x_actor)
await session.commit()
return {
"ok": True,
"level": payload.level,
"version": version,
"graph_hash": snapshot.graph_hash,
"published_by": workflow.published_by,
"issues": issues, # 剩下的都是警告
}
class ValidateIn(BaseModel):
graph: dict[str, Any]
@router.post("/validate")
async def validate(payload: ValidateIn) -> dict[str, Any]:
"""画布上的实时校验。前端每次改动都会调它来标红。"""
try:
spec = GraphSpec.model_validate(payload.graph)
except Exception as e: # noqa: BLE001
return {"ok": False, "issues": [{"level": "error", "message": f"工作流的结构读不懂:{graph_error(e)}"}]}
result = validate_graph(spec)
return result.model_dump()
@router.post("/variables")
async def variables(payload: ValidateIn) -> dict[str, Any]:
"""这张图里有哪些变量、谁产出、谁引用。
纯静态分析,不用跑图也不用有运行记录——用户在编排到一半时最需要它,
而那时候还没有任何一次运行可看。运行期的实际取值由前端从事件里补上。
"""
from app.engine.variables import analyze
try:
spec = GraphSpec.model_validate(payload.graph)
except Exception as e: # noqa: BLE001
return {"variables": [], "issues": [{"level": "error", "message": f"工作流的结构读不懂:{graph_error(e)}"}]}
return analyze(spec).model_dump()