536 lines
21 KiB
Python
536 lines
21 KiB
Python
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from __future__ import annotations
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from datetime import UTC, datetime, timedelta
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from typing import Any
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from sqlalchemy import and_, func, or_, select
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from sqlalchemy.orm import Session
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from app.models.employee import Employee
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from app.models.financial_record import (
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AccountsPayableRecord,
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AccountsReceivableRecord,
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ExpenseClaim,
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)
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from app.schemas.ontology import OntologyParseResult
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PRIVILEGED_EXPENSE_QUERY_ROLE_CODES = {"finance"}
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SELF_REFERENCE_KEYWORDS = ("我的", "我自己", "本人", "我名下", "给我查", "我提交", "我申请")
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EXPENSE_QUERY_RECENT_WINDOW_DAYS = 10
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EXPENSE_QUERY_PREVIEW_LIMIT = 20
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EXPENSE_STATUS_LABELS = {
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"draft": "草稿",
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"submitted": "已提交",
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"review": "审核中",
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"approved": "已通过",
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"rejected": "已驳回",
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"paid": "已付款",
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}
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EXPENSE_STATUS_GROUP_LABELS = {
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"draft": "草稿",
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"in_progress": "审批中",
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"completed": "审批完成",
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"other": "其他状态",
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}
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EXPENSE_STATUS_GROUP_ORDER = ("draft", "in_progress", "completed", "other")
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EXPENSE_TYPE_LABELS = {
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"travel": "差旅费",
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"hotel": "住宿费",
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"transport": "交通费",
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"meal": "餐费",
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"meeting": "会务费",
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"entertainment": "业务招待费",
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"office": "办公费",
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"training": "培训费",
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"communication": "通讯费",
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"welfare": "福利费",
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"other": "其他费用",
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}
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class OrchestratorDatabaseQueryBuilder:
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def __init__(self, db: Session) -> None:
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self.db = db
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def build_database_answer(
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self,
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ontology: OntologyParseResult,
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*,
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user_id: str | None,
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context_json: dict[str, Any],
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message: str,
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) -> dict[str, Any]:
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if ontology.scenario == "expense":
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return self._build_expense_database_answer(
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ontology=ontology,
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user_id=user_id,
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context_json=context_json,
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message=message,
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)
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if ontology.scenario == "accounts_receivable":
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return self._build_accounts_receivable_answer()
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return self._build_accounts_payable_answer()
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def _build_expense_database_answer(
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self,
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*,
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ontology: OntologyParseResult,
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user_id: str | None,
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context_json: dict[str, Any],
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message: str,
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) -> dict[str, Any]:
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conditions, scope_label, scoped_to_current_user = self._build_expense_query_scope(
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ontology=ontology,
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user_id=user_id,
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context_json=context_json,
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message=message,
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)
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count_stmt = select(func.count()).select_from(ExpenseClaim)
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amount_stmt = select(func.coalesce(func.sum(ExpenseClaim.amount), 0)).select_from(ExpenseClaim)
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for condition in conditions:
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count_stmt = count_stmt.where(condition)
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amount_stmt = amount_stmt.where(condition)
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total_count = int(self.db.scalar(count_stmt) or 0)
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total_amount = float(self.db.scalar(amount_stmt) or 0)
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recent_window_applied = self._should_limit_expense_query_to_recent_window(ontology)
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display_count = total_count
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display_amount = total_amount
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older_record_count = 0
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display_conditions = list(conditions)
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window_start_date: str | None = None
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window_end_date: str | None = None
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if recent_window_applied:
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reference_now = self._resolve_reference_now(context_json)
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recent_window_start, recent_window_end = self._resolve_expense_recent_window_bounds(reference_now)
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recent_condition = self._build_expense_recent_window_condition(
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recent_window_start,
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recent_window_end,
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)
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display_conditions.append(recent_condition)
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window_start_date = recent_window_start.date().isoformat()
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window_end_date = (recent_window_end - timedelta(microseconds=1)).date().isoformat()
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recent_count_stmt = select(func.count()).select_from(ExpenseClaim).where(recent_condition)
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recent_amount_stmt = select(func.coalesce(func.sum(ExpenseClaim.amount), 0)).select_from(ExpenseClaim).where(
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recent_condition
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)
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for condition in conditions:
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recent_count_stmt = recent_count_stmt.where(condition)
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recent_amount_stmt = recent_amount_stmt.where(condition)
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display_count = int(self.db.scalar(recent_count_stmt) or 0)
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display_amount = float(self.db.scalar(recent_amount_stmt) or 0)
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older_record_count = max(0, total_count - display_count)
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preview_stmt = (
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select(ExpenseClaim)
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.order_by(
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func.coalesce(
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ExpenseClaim.submitted_at,
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ExpenseClaim.created_at,
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ExpenseClaim.occurred_at,
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).desc(),
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ExpenseClaim.occurred_at.desc(),
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)
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.limit(EXPENSE_QUERY_PREVIEW_LIMIT)
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)
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for condition in display_conditions:
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preview_stmt = preview_stmt.where(condition)
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preview_claims = list(self.db.scalars(preview_stmt).all())
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status_groups = self._build_expense_status_groups(display_conditions)
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return {
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"result_type": "expense_claim_list",
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"record_count": display_count,
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"total_amount": round(display_amount, 2),
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"scope_label": scope_label,
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"scoped_to_current_user": scoped_to_current_user,
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"recent_window_applied": recent_window_applied,
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"window_days": EXPENSE_QUERY_RECENT_WINDOW_DAYS if recent_window_applied else None,
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"window_start_date": window_start_date,
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"window_end_date": window_end_date,
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"preview_count": len(preview_claims),
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"older_record_count": older_record_count,
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"records": [
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self._build_expense_query_record(claim)
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for claim in preview_claims
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],
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"status_groups": status_groups,
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"has_more_in_window": display_count > len(preview_claims),
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"total_matched_count": total_count,
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}
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def _build_accounts_receivable_answer(self) -> dict[str, Any]:
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total_count = int(
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self.db.scalar(
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select(func.count()).select_from(AccountsReceivableRecord)
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)
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or 0
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)
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total_amount = float(
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self.db.scalar(
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select(func.coalesce(func.sum(AccountsReceivableRecord.amount_outstanding), 0))
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)
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or 0
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)
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return {
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"record_count": total_count,
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"outstanding_amount": round(total_amount, 2),
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}
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def _build_accounts_payable_answer(self) -> dict[str, Any]:
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total_count = int(
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self.db.scalar(select(func.count()).select_from(AccountsPayableRecord))
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or 0
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)
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total_amount = float(
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self.db.scalar(
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select(func.coalesce(func.sum(AccountsPayableRecord.amount_outstanding), 0))
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)
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or 0
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)
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return {
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"record_count": total_count,
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"outstanding_amount": round(total_amount, 2),
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}
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@staticmethod
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def _should_limit_expense_query_to_recent_window(
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ontology: OntologyParseResult,
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) -> bool:
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has_explicit_claim_no = any(
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item.type == "expense_claim"
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and str(item.normalized_value or item.value or "").strip()
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for item in ontology.entities
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)
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has_explicit_time_range = bool(
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ontology.time_range.start_date or ontology.time_range.end_date
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)
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return not has_explicit_claim_no and not has_explicit_time_range
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@staticmethod
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def _resolve_reference_now(context_json: dict[str, Any]) -> datetime:
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raw_value = str(context_json.get("client_now_iso") or "").strip()
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if raw_value:
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normalized = raw_value.replace("Z", "+00:00")
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try:
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parsed = datetime.fromisoformat(normalized)
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if parsed.tzinfo is None:
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return parsed.replace(tzinfo=UTC)
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return parsed.astimezone(UTC)
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except ValueError:
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pass
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return datetime.now(UTC)
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@staticmethod
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def _resolve_expense_recent_window_bounds(
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reference_now: datetime,
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) -> tuple[datetime, datetime]:
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normalized_now = reference_now.astimezone(UTC)
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window_end = normalized_now.replace(hour=0, minute=0, second=0, microsecond=0) + timedelta(days=1)
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window_start = window_end - timedelta(days=EXPENSE_QUERY_RECENT_WINDOW_DAYS)
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return window_start, window_end
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@staticmethod
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def _build_expense_recent_window_condition(
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window_start: datetime,
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window_end: datetime,
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) -> Any:
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document_datetime = func.coalesce(
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ExpenseClaim.submitted_at,
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ExpenseClaim.created_at,
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ExpenseClaim.occurred_at,
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)
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return and_(document_datetime >= window_start, document_datetime < window_end)
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def _build_expense_status_groups(
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self,
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conditions: list[Any],
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) -> list[dict[str, Any]]:
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stmt = select(ExpenseClaim.status, func.count()).select_from(ExpenseClaim).group_by(ExpenseClaim.status)
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for condition in conditions:
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stmt = stmt.where(condition)
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grouped_counts = {
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key: 0
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for key in EXPENSE_STATUS_GROUP_ORDER
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}
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for status, count in self.db.execute(stmt).all():
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group_key, _ = self._resolve_expense_status_group(str(status or "").strip())
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grouped_counts[group_key] = grouped_counts.get(group_key, 0) + int(count or 0)
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return [
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{
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"key": key,
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"label": EXPENSE_STATUS_GROUP_LABELS[key],
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"count": grouped_counts.get(key, 0),
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}
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for key in EXPENSE_STATUS_GROUP_ORDER
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if grouped_counts.get(key, 0) > 0
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]
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@staticmethod
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def _resolve_expense_status_group(status: str) -> tuple[str, str]:
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normalized = str(status or "").strip().lower()
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if normalized == "draft":
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return "draft", EXPENSE_STATUS_GROUP_LABELS["draft"]
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if normalized in {"submitted", "review"}:
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return "in_progress", EXPENSE_STATUS_GROUP_LABELS["in_progress"]
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if normalized in {"approved", "paid"}:
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return "completed", EXPENSE_STATUS_GROUP_LABELS["completed"]
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return "other", EXPENSE_STATUS_GROUP_LABELS["other"]
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@staticmethod
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def _resolve_expense_query_document_datetime(
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claim: ExpenseClaim,
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) -> datetime | None:
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return claim.submitted_at or claim.created_at or claim.occurred_at
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def _build_expense_query_record(
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self,
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claim: ExpenseClaim,
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) -> dict[str, Any]:
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status_group, status_group_label = self._resolve_expense_status_group(claim.status)
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document_datetime = self._resolve_expense_query_document_datetime(claim)
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return {
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"claim_id": claim.id,
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"claim_no": claim.claim_no,
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"employee_name": claim.employee_name,
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"expense_type": claim.expense_type,
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"expense_type_label": EXPENSE_TYPE_LABELS.get(claim.expense_type, claim.expense_type or "报销"),
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"amount": round(float(claim.amount), 2),
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"status": claim.status,
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"status_label": EXPENSE_STATUS_LABELS.get(claim.status, claim.status or "处理中"),
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"status_group": status_group,
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"status_group_label": status_group_label,
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"approval_stage": claim.approval_stage,
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"document_date": document_datetime.date().isoformat() if document_datetime else "",
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"occurred_at": claim.occurred_at.date().isoformat() if claim.occurred_at else "",
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"reason": claim.reason,
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"location": claim.location,
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}
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def _build_expense_query_scope(
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self,
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*,
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ontology: OntologyParseResult,
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user_id: str | None,
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context_json: dict[str, Any],
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message: str,
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) -> tuple[list[Any], str, bool]:
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conditions: list[Any] = []
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explicit_employee_names = list(
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dict.fromkeys(
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str(item.value or "").strip()
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for item in ontology.entities
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if item.type == "employee" and str(item.value or "").strip()
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)
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)
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expense_claim_nos = list(
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dict.fromkeys(
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str(item.normalized_value or item.value or "").strip().upper()
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for item in ontology.entities
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if item.type == "expense_claim" and str(item.normalized_value or item.value or "").strip()
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)
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)
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expense_types = list(
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dict.fromkeys(
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str(item.normalized_value or item.value or "").strip()
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for item in ontology.entities
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if item.type == "expense_type" and str(item.normalized_value or item.value or "").strip()
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)
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)
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project_values = self._collect_expense_query_filter_values(ontology, "project")
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location_values = self._collect_expense_query_filter_values(ontology, "location")
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status_values = list(
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dict.fromkeys(
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str(item.value).strip()
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|
|
for item in ontology.constraints
|
||
|
|
if item.field == "status" and item.operator == "=" and str(item.value).strip()
|
||
|
|
)
|
||
|
|
)
|
||
|
|
amount_constraints = [
|
||
|
|
item
|
||
|
|
for item in ontology.constraints
|
||
|
|
if item.field == "amount" and item.operator in {">", ">=", "<", "<=", "="}
|
||
|
|
]
|
||
|
|
scope_label = "报销单"
|
||
|
|
scoped_to_current_user = False
|
||
|
|
|
||
|
|
if expense_claim_nos:
|
||
|
|
conditions.append(ExpenseClaim.claim_no.in_(expense_claim_nos))
|
||
|
|
if expense_types:
|
||
|
|
conditions.append(ExpenseClaim.expense_type.in_(expense_types))
|
||
|
|
if status_values:
|
||
|
|
conditions.append(ExpenseClaim.status.in_(status_values))
|
||
|
|
if project_values:
|
||
|
|
project_conditions = []
|
||
|
|
for value in project_values:
|
||
|
|
pattern = f"%{value}%"
|
||
|
|
project_conditions.append(ExpenseClaim.project_code.ilike(pattern))
|
||
|
|
project_conditions.append(ExpenseClaim.reason.ilike(pattern))
|
||
|
|
conditions.append(or_(*project_conditions))
|
||
|
|
if location_values:
|
||
|
|
location_conditions = []
|
||
|
|
for value in location_values:
|
||
|
|
pattern = f"%{value}%"
|
||
|
|
location_conditions.append(ExpenseClaim.location.ilike(pattern))
|
||
|
|
location_conditions.append(ExpenseClaim.reason.ilike(pattern))
|
||
|
|
conditions.append(or_(*location_conditions))
|
||
|
|
|
||
|
|
for item in amount_constraints:
|
||
|
|
amount_value = float(item.value)
|
||
|
|
if item.operator == ">":
|
||
|
|
conditions.append(ExpenseClaim.amount > amount_value)
|
||
|
|
elif item.operator == ">=":
|
||
|
|
conditions.append(ExpenseClaim.amount >= amount_value)
|
||
|
|
elif item.operator == "<":
|
||
|
|
conditions.append(ExpenseClaim.amount < amount_value)
|
||
|
|
elif item.operator == "<=":
|
||
|
|
conditions.append(ExpenseClaim.amount <= amount_value)
|
||
|
|
else:
|
||
|
|
conditions.append(ExpenseClaim.amount == amount_value)
|
||
|
|
|
||
|
|
if ontology.time_range.start_date:
|
||
|
|
conditions.append(
|
||
|
|
ExpenseClaim.occurred_at
|
||
|
|
>= datetime.fromisoformat(f"{ontology.time_range.start_date}T00:00:00+00:00")
|
||
|
|
)
|
||
|
|
if ontology.time_range.end_date:
|
||
|
|
conditions.append(
|
||
|
|
ExpenseClaim.occurred_at
|
||
|
|
<= datetime.fromisoformat(f"{ontology.time_range.end_date}T23:59:59.999999+00:00")
|
||
|
|
)
|
||
|
|
|
||
|
|
has_privileged_access = self._has_privileged_expense_query_access(context_json)
|
||
|
|
refers_to_self = self._is_self_expense_query(message)
|
||
|
|
if not has_privileged_access:
|
||
|
|
owner_conditions, owner_label = self._build_current_user_claim_conditions(
|
||
|
|
user_id=user_id,
|
||
|
|
context_json=context_json,
|
||
|
|
)
|
||
|
|
if owner_conditions:
|
||
|
|
conditions.append(or_(*owner_conditions))
|
||
|
|
scope_label = owner_label
|
||
|
|
scoped_to_current_user = True
|
||
|
|
else:
|
||
|
|
conditions.append(ExpenseClaim.id == "__no_visible_claim__")
|
||
|
|
scope_label = "你的报销单"
|
||
|
|
scoped_to_current_user = True
|
||
|
|
elif explicit_employee_names:
|
||
|
|
conditions.append(ExpenseClaim.employee_name.in_(explicit_employee_names))
|
||
|
|
scope_label = f"{'、'.join(explicit_employee_names)}的报销单"
|
||
|
|
elif refers_to_self:
|
||
|
|
owner_conditions, owner_label = self._build_current_user_claim_conditions(
|
||
|
|
user_id=user_id,
|
||
|
|
context_json=context_json,
|
||
|
|
)
|
||
|
|
if owner_conditions:
|
||
|
|
conditions.append(or_(*owner_conditions))
|
||
|
|
scope_label = owner_label
|
||
|
|
scoped_to_current_user = True
|
||
|
|
else:
|
||
|
|
conditions.append(ExpenseClaim.id == "__no_visible_claim__")
|
||
|
|
scope_label = "你的报销单"
|
||
|
|
scoped_to_current_user = True
|
||
|
|
else:
|
||
|
|
scope_label = "全部报销单"
|
||
|
|
|
||
|
|
return conditions, scope_label, scoped_to_current_user
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def _collect_expense_query_filter_values(
|
||
|
|
ontology: OntologyParseResult,
|
||
|
|
field_name: str,
|
||
|
|
) -> list[str]:
|
||
|
|
values: list[str] = []
|
||
|
|
for entity in ontology.entities:
|
||
|
|
if entity.type != field_name:
|
||
|
|
continue
|
||
|
|
value = str(entity.normalized_value or entity.value or "").strip()
|
||
|
|
if value:
|
||
|
|
values.append(value)
|
||
|
|
for constraint in ontology.constraints:
|
||
|
|
if constraint.field != field_name or constraint.operator != "=":
|
||
|
|
continue
|
||
|
|
value = str(constraint.value or "").strip()
|
||
|
|
if value:
|
||
|
|
values.append(value)
|
||
|
|
return list(dict.fromkeys(values))
|
||
|
|
|
||
|
|
def _build_current_user_claim_conditions(
|
||
|
|
self,
|
||
|
|
*,
|
||
|
|
user_id: str | None,
|
||
|
|
context_json: dict[str, Any],
|
||
|
|
) -> tuple[list[Any], str]:
|
||
|
|
normalized_user_id = str(user_id or "").strip()
|
||
|
|
employee = None
|
||
|
|
if normalized_user_id:
|
||
|
|
employee = self.db.scalar(
|
||
|
|
select(Employee)
|
||
|
|
.where(func.lower(Employee.email) == normalized_user_id.lower())
|
||
|
|
.limit(1)
|
||
|
|
)
|
||
|
|
|
||
|
|
conditions: list[Any] = []
|
||
|
|
seen: set[tuple[str, str]] = set()
|
||
|
|
|
||
|
|
def add_condition(field_name: str, value: str | None) -> None:
|
||
|
|
normalized = str(value or "").strip()
|
||
|
|
if not normalized:
|
||
|
|
return
|
||
|
|
|
||
|
|
marker = (field_name, normalized.lower())
|
||
|
|
if marker in seen:
|
||
|
|
return
|
||
|
|
seen.add(marker)
|
||
|
|
|
||
|
|
if field_name == "employee_id":
|
||
|
|
conditions.append(ExpenseClaim.employee_id == normalized)
|
||
|
|
return
|
||
|
|
conditions.append(ExpenseClaim.employee_name == normalized)
|
||
|
|
|
||
|
|
if employee is not None:
|
||
|
|
add_condition("employee_id", employee.id)
|
||
|
|
add_condition("employee_name", employee.email)
|
||
|
|
if self._employee_name_is_unique(employee):
|
||
|
|
add_condition("employee_name", employee.name)
|
||
|
|
else:
|
||
|
|
add_condition("employee_id", normalized_user_id)
|
||
|
|
add_condition("employee_name", normalized_user_id)
|
||
|
|
|
||
|
|
subject_name = (employee.name if employee is not None else "") or normalized_user_id
|
||
|
|
if subject_name:
|
||
|
|
return conditions, "你的报销单"
|
||
|
|
return conditions, "当前用户的报销单"
|
||
|
|
|
||
|
|
def _employee_name_is_unique(self, employee: Employee) -> bool:
|
||
|
|
normalized_name = str(employee.name or "").strip()
|
||
|
|
if not normalized_name:
|
||
|
|
return False
|
||
|
|
|
||
|
|
same_name_count = int(
|
||
|
|
self.db.scalar(
|
||
|
|
select(func.count()).select_from(Employee).where(Employee.name == normalized_name)
|
||
|
|
)
|
||
|
|
or 0
|
||
|
|
)
|
||
|
|
return same_name_count == 1
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def _has_privileged_expense_query_access(context_json: dict[str, Any]) -> bool:
|
||
|
|
role_codes = {
|
||
|
|
str(item).strip().lower()
|
||
|
|
for item in context_json.get("role_codes", [])
|
||
|
|
if str(item).strip()
|
||
|
|
}
|
||
|
|
return bool(role_codes & PRIVILEGED_EXPENSE_QUERY_ROLE_CODES)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def _is_self_expense_query(message: str) -> bool:
|
||
|
|
compact_message = "".join(str(message or "").split())
|
||
|
|
return any(keyword in compact_message for keyword in SELF_REFERENCE_KEYWORDS)
|