PayrollManagementSystem/backend/app/services/approval_service.py
liuwenxin 8ef26e22fb feat(approval): 审批单/节点状态机与二次分配接入(开关自动通过)
- approval_orders/approval_steps 服务层:submit_order(不 commit 不嵌套
  audit,业务写路径统一收口)+ act 节点动作 + 分页/详情
- 开关关闭=提单即两级「自动通过」留痕(action=3,operator 记系统);
  开启=财务→领导流转,一驳全驳,驳回必填意见
- 节点准入严格按角色(status=1 仅财务、status=2 仅领导),admin 不代办;
  模块准入 require_roles 依赖工厂(admin/finance/leader,营销后勤待
  澄清 #6 后放开)
- 业务接入:创建/编辑带方案即提单(空方案不提单);再编辑自动撤回旧
  在途单(node=0/action=4 留痕);AP 编号冲突 create 内可重取(外层
  重试兜底)、update 直接抛出防静默丢失
- conftest 兜底清理增审批单(AP 前缀)与开关参数种子基线恢复
- 集成 11 例:自动通过/两节点流转/驳回留痕/缺意见 400/节点准入 403/
  admin 不代办/重复操作 400/撤旧建新/模块准入

Co-Authored-By: Claude Code <noreply@anthropic.com>
2026-10-15 18:50:38 +08:00

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"""审批流业务编排(2026-10-15 复核审批补充需求)。
三级链路:营销后勤提交 → 财务复核 → 领导审核。行为由参数开关驱动
(`approval.secondary_allocation.enabled` / `approval.monthly_settlement.enabled`):
- **关闭(默认)**:提交即生成审批单并「自动通过」全节点留痕(action=3,
operator 记「系统」)——留痕不断链,与「关闭=直接生效」的需求口径一致;
- **开启**:status=1 待财务复核 → 2 待领导审核 → 3 已通过;任一节点驳回
即整体驳回(status=4),一期不做退回重走(简单状态机)。
红线:
- `submit_order` **不 commit、不嵌套 audit** —— 由业务写路径(business_service
的 create/update)既有 audit 上下文统一收口,违反嵌套禁令会让失败路径
回滚不完整(见 audit_service 模块 docstring);
- 节点准入**严格按角色编码**:status=1 仅财务、status=2 仅领导,admin 不
代办 —— 放行 admin 会让双人复核流退化成管理员单点审批;
- 同一引用对象的在途单(status 1/2)在重新提交前先撤回(status=5 +
node=0/action=4 留痕),保证「一个对象至多一张在途单」。
"""
import logging
from datetime import date
from sqlalchemy import func, select
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import Session
from app.core.constants import (
ACTION_APPROVE,
ACTION_REJECT,
MODULE_APPROVAL,
NO_PREFIX_APPROVAL,
ROLE_FINANCE,
ROLE_LEADER,
)
from app.core.db_errors import is_duplicate_entry
from app.core.exceptions import BadRequestError, ForbiddenError, NotFoundError
from app.core.response import PageResult
from app.models import ApprovalOrder, ApprovalStep, User
from app.models.approval import (
APPROVAL_ACTION_APPROVE,
APPROVAL_ACTION_AUTO_APPROVE,
APPROVAL_ACTION_WITHDRAW,
APPROVAL_NODE_FINANCE,
APPROVAL_NODE_LEADER,
APPROVAL_NODE_WITHDRAW,
APPROVAL_NODES,
APPROVAL_STATUS_APPROVED,
APPROVAL_STATUS_PENDING_FINANCE,
APPROVAL_STATUS_PENDING_LEADER,
APPROVAL_STATUS_REJECTED,
APPROVAL_STATUS_WITHDRAWN,
)
from app.repositories import user_repository
from app.schemas.approval import (
ApprovalActionIn,
ApprovalOrderDetailOut,
ApprovalOrderOut,
ApprovalQuery,
ApprovalStepOut,
)
from app.services import audit_service, param_service
from app.services.audit_service import AuditRecord, RequestMeta
from app.services.no_generator import next_no
logger = logging.getLogger(__name__)
# 开关参数编码(与 param_registry 种子同源)
ENABLE_CODE_BY_TYPE: dict[int, str] = {
1: "approval.secondary_allocation.enabled",
2: "approval.monthly_settlement.enabled",
}
_NO_RETRY = 1 # AP 单号唯一键冲突重试(next_no 的 MAX+FOR UPDATE 之外的兜底)
# 在途状态集合(同一引用对象至多一张在途单)
_PENDING_STATUSES = (APPROVAL_STATUS_PENDING_FINANCE, APPROVAL_STATUS_PENDING_LEADER)
# 在途状态 → 当前节点应操作的角色(admin 不代办:单人审批绕过双人复核)
_NODE_ROLE_BY_STATUS = {
APPROVAL_STATUS_PENDING_FINANCE: ROLE_FINANCE,
APPROVAL_STATUS_PENDING_LEADER: ROLE_LEADER,
}
_ROLE_LABEL = {ROLE_FINANCE: "财务", ROLE_LEADER: "领导"}
def is_enabled(session: Session, order_type: int) -> bool:
"""读当日参数快照判定审批开关(一次提交路径内只读一次,调用方勿重读)。"""
code = ENABLE_CODE_BY_TYPE.get(order_type)
if code is None:
raise BadRequestError("未知的审批对象类型")
return param_service.resolve_snapshot(session, date.today()).boolean(code)
def submit_order(
session: Session,
*,
order_type: int,
ref_id: int,
refer_no: str,
submitter: User,
retry_on_conflict: bool,
) -> ApprovalOrder:
"""提单(业务写路径内部调用;不 commit、不嵌套 audit)。
同一引用对象的在途单先撤回留痕再建新单;开关关闭时生成即自动通过
(全节点 action=3 留痕)。
:param retry_on_conflict: AP 编号撞唯一键时是否允许本函数内部
rollback 后重取。**仅 create 传 True**——它外层有编号重试循环,
rollback 后整体重来;update 路径必须传 False:内部 rollback 会把
同事务的业务行修改一并回滚,静默继续会「返回 200 库里没改」。
False 时 IntegrityError 直接抛出 → 审计上下文回滚并记失败 →
全局 handler 收敛 400,用户重试即可。
"""
_withdraw_pending(session, order_type=order_type, ref_id=ref_id, operator=submitter)
order = ApprovalOrder(
order_no=next_no(
session,
model=ApprovalOrder,
column_name="order_no",
prefix=NO_PREFIX_APPROVAL,
),
order_type=order_type,
ref_id=ref_id,
refer_no=refer_no,
submitter_id=submitter.id,
submitter_name=submitter.username,
)
session.add(order)
if is_enabled(session, order_type):
order.status = APPROVAL_STATUS_PENDING_FINANCE
_flush_order(session, order, retry_on_conflict=retry_on_conflict)
logger.info("审批单待审 | order=%s", order.order_no)
return order
# 开关关闭=直接生效:两级节点各记一条「自动通过」,留痕不断链
order.status = APPROVAL_STATUS_APPROVED
_flush_order(session, order, retry_on_conflict=retry_on_conflict)
session.add_all(
[
ApprovalStep(
order_id=order.id,
node=node,
action=APPROVAL_ACTION_AUTO_APPROVE,
operator_name="系统",
)
for node in (APPROVAL_NODE_FINANCE, APPROVAL_NODE_LEADER)
]
)
session.flush()
logger.info("审批单自动通过 | order=%s(开关关闭)", order.order_no)
return order
def act(
session: Session,
order_id: int,
payload: ApprovalActionIn,
*,
operator: User,
meta: RequestMeta | None = None,
) -> ApprovalOrderDetailOut:
"""节点动作(财务复核/领导审核):状态机流转 + 节点留痕(审计上下文)。
通过:status=1 → 2(下一步领导);status=2 → 3(终态已通过)。
驳回:任一在途状态 → 4(整体驳回,一期不退回重走)。
节点留痕的 node 取**动作发生时的当前节点**(通过/驳回都记在操作节点上)。
"""
codes = set(user_repository.get_role_codes(operator))
verb = ACTION_APPROVE if payload.action == APPROVAL_ACTION_APPROVE else ACTION_REJECT
with audit_service.audit(
session,
operator=operator,
record=AuditRecord(
module=MODULE_APPROVAL,
action=verb,
summary=f"审批单 #{order_id} {verb}",
request_data=payload.model_dump(),
),
meta=meta,
):
order = session.get(ApprovalOrder, order_id, with_for_update=True)
if order is None:
raise NotFoundError("审批单不存在")
if order.status not in _PENDING_STATUSES:
raise BadRequestError("审批单已结束,不可重复操作")
required_role = _NODE_ROLE_BY_STATUS[order.status]
if required_role not in codes:
raise ForbiddenError(f"当前节点须{_ROLE_LABEL[required_role]}角色操作")
node_now = APPROVAL_NODES[order.status]
if payload.action == APPROVAL_ACTION_APPROVE:
order.status = (
APPROVAL_STATUS_PENDING_LEADER
if order.status == APPROVAL_STATUS_PENDING_FINANCE
else APPROVAL_STATUS_APPROVED
)
else:
order.status = APPROVAL_STATUS_REJECTED
session.add(
ApprovalStep(
order_id=order.id,
node=node_now,
action=payload.action,
opinion=payload.opinion,
operator_id=operator.id,
operator_name=operator.username,
)
)
session.commit()
return _detail_of(session, order)
def list_orders(session: Session, query: ApprovalQuery) -> PageResult[ApprovalOrderOut]:
"""分页查询审批单(准入由 api 层依赖判定)。"""
filters = _order_filters(query)
rows = (
session.execute(
select(ApprovalOrder)
.where(*filters)
.order_by(ApprovalOrder.id.desc())
.offset(query.offset)
.limit(query.page_size)
)
.scalars()
.all()
)
total = session.execute(
select(func.count()).select_from(ApprovalOrder).where(*filters)
).scalar_one()
return PageResult[ApprovalOrderOut](
records=[ApprovalOrderOut.model_validate(r) for r in rows],
total=int(total),
page_num=query.page_num,
page_size=query.page_size,
)
def get_order(session: Session, order_id: int) -> ApprovalOrderDetailOut:
"""审批单详情(附节点时间线)。"""
order = session.get(ApprovalOrder, order_id)
if order is None:
raise NotFoundError("审批单不存在")
return _detail_of(session, order)
def _withdraw_pending(session: Session, *, order_type: int, ref_id: int, operator: User) -> None:
"""撤回引用对象的在途单(重新提交前调用;不 commit)。"""
pending = (
session.execute(
select(ApprovalOrder).where(
ApprovalOrder.order_type == order_type,
ApprovalOrder.ref_id == ref_id,
ApprovalOrder.status.in_(_PENDING_STATUSES),
)
)
.scalars()
.all()
)
for order in pending:
order.status = APPROVAL_STATUS_WITHDRAWN
session.add(
ApprovalStep(
order_id=order.id,
node=APPROVAL_NODE_WITHDRAW,
action=APPROVAL_ACTION_WITHDRAW,
operator_id=operator.id,
operator_name=operator.username,
)
)
if pending:
session.flush()
logger.info("撤回在途审批单 %s 张 | ref=%s", len(pending), ref_id)
def _flush_order(session: Session, order: ApprovalOrder, *, retry_on_conflict: bool) -> None:
"""flush 提单;撞 AP 单号唯一键时按 retry_on_conflict 决定重取或抛出。
rollback 会连业务写路径的未提交变更一并回滚 —— 见 submit_order 的
retry_on_conflict 说明(create 才允许内部重取)。
"""
for attempt in range(_NO_RETRY + 1):
try:
session.flush()
return
except IntegrityError as exc:
session.rollback()
if is_duplicate_entry(exc) and retry_on_conflict and attempt < _NO_RETRY:
order.id = None # rollback 后实例回 transient,主键重新分配
order.order_no = next_no(
session,
model=ApprovalOrder,
column_name="order_no",
prefix=NO_PREFIX_APPROVAL,
)
session.add(order)
continue
raise
def _detail_of(session: Session, order: ApprovalOrder) -> ApprovalOrderDetailOut:
"""出参组装(含 steps 时间线)。"""
steps = (
session.execute(
select(ApprovalStep).where(ApprovalStep.order_id == order.id).order_by(ApprovalStep.id)
)
.scalars()
.all()
)
detail = ApprovalOrderDetailOut.model_validate(order)
detail.steps = [ApprovalStepOut.model_validate(s) for s in steps]
return detail
def _order_filters(query: ApprovalQuery) -> tuple:
filters = []
if query.keyword:
like = f"%{query.keyword}%"
filters.append(ApprovalOrder.order_no.like(like) | ApprovalOrder.refer_no.like(like))
if query.status is not None:
filters.append(ApprovalOrder.status == query.status)
if query.order_type is not None:
filters.append(ApprovalOrder.order_type == query.order_type)
return tuple(filters)