53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
"""列头漏斗可选值（去重 facet）公共拼装。"""
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from __future__ import annotations
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from typing import Any, Callable, Dict, List, Optional
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from sqlalchemy import Column, func
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from sqlalchemy.orm import Query, Session
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def list_column_facet_values(
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db: Session,
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model: Any,
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column: Column,
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*,
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tenant_no: str,
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keyword: Optional[str] = None,
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limit: int = 500,
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apply_scope: Optional[Callable[[Query], Query]] = None,
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extra_filters: Optional[List[Any]] = None,
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) -> List[Dict[str, Any]]:
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"""对业务表某列做去重可选值查询。
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约束：tenant_no + del_flag=0；空值剔除；按列值升序；limit 上限 500。
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apply_scope：可选，注入数据权限（如 apply_crm_create_by_scope 包装后的 q 变换）。
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extra_filters：额外 SQLAlchemy 条件（如 status=='on'、公海 view_mode）。
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"""
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lim = min(max(1, int(limit or 500)), 500)
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q = db.query(column.label("value"), func.count(model.id).label("cnt")).filter(
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model.tenant_no == tenant_no,
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model.del_flag == 0,
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column.isnot(None),
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column != "",
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)
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if extra_filters:
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for expr in extra_filters:
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if expr is not None:
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q = q.filter(expr)
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if apply_scope is not None:
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q = apply_scope(q)
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kw = (keyword or "").strip()
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if kw:
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q = q.filter(column.like(f"%{kw}%"))
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rows = q.group_by(column).order_by(column.asc()).limit(lim).all()
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out: List[Dict[str, Any]] = []
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for row in rows:
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value = str(row.value).strip() if row.value is not None else ""
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if not value:
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continue
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out.append({"value": value, "label": value, "count": int(row.cnt or 0)})
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return out
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