初始提交：飞球 ETL 系统全量代码
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334
tasks/dws/assistant_customer_task.py
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334
tasks/dws/assistant_customer_task.py
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# -*- coding: utf-8 -*-
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"""
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助教服务客户统计任务
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功能说明：
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以"助教+客户"为粒度，统计服务关系和滚动窗口指标
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数据来源：
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- dwd_assistant_service_log: 助教服务流水
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- dim_member: 会员维度
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目标表：
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billiards_dws.dws_assistant_customer_stats
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更新策略：
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- 更新频率：每日更新
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- 幂等方式：delete-before-insert（按统计日期）
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业务规则：
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- 散客处理：member_id=0 不进入此表统计
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- 滚动窗口：7/10/15/30/60/90天
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- 活跃度：近7天/30天是否有服务
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作者：ETL团队
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创建日期：2026-02-01
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"""
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from __future__ import annotations
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from datetime import date, datetime, timedelta
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from decimal import Decimal
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from typing import Any, Dict, List, Optional, Set, Tuple
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from .base_dws_task import BaseDwsTask, TaskContext
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class AssistantCustomerTask(BaseDwsTask):
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"""
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助教服务客户统计任务
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统计每个助教与每个客户的服务关系：
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- 首次/最近服务日期
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- 累计服务统计
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- 滚动窗口统计（7/10/15/30/60/90天）
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- 活跃度指标
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"""
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def get_task_code(self) -> str:
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return "DWS_ASSISTANT_CUSTOMER"
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def get_target_table(self) -> str:
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return "dws_assistant_customer_stats"
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def get_primary_keys(self) -> List[str]:
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return ["site_id", "assistant_id", "member_id", "stat_date"]
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# ==========================================================================
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# ETL主流程
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# ==========================================================================
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def extract(self, context: TaskContext) -> Dict[str, Any]:
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"""
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提取数据
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"""
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stat_date = context.window_end.date() if hasattr(context.window_end, 'date') else context.window_end
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site_id = context.store_id
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self.logger.info(
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"%s: 提取数据，统计日期 %s",
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self.get_task_code(), stat_date
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)
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# 计算最大回溯日期（90天窗口）
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lookback_start = stat_date - timedelta(days=90)
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# 1. 获取助教-客户服务记录（包含历史全量用于累计统计）
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service_pairs = self._extract_service_pairs(site_id, stat_date)
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# 2. 获取会员信息
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member_info = self._extract_member_info(site_id)
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# 3. 获取助教信息
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assistant_info = self._extract_assistant_info(site_id)
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return {
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'service_pairs': service_pairs,
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'member_info': member_info,
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'assistant_info': assistant_info,
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'stat_date': stat_date,
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'site_id': site_id
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}
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def transform(self, extracted: Dict[str, Any], context: TaskContext) -> List[Dict[str, Any]]:
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"""
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转换数据：计算各窗口统计
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"""
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service_pairs = extracted['service_pairs']
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member_info = extracted['member_info']
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assistant_info = extracted['assistant_info']
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stat_date = extracted['stat_date']
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site_id = extracted['site_id']
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self.logger.info(
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"%s: 转换数据，%d 条服务关系记录",
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self.get_task_code(), len(service_pairs)
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)
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# 构建统计记录
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results = []
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for pair in service_pairs:
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assistant_id = pair.get('assistant_id')
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member_id = pair.get('member_id')
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# 跳过散客
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if self.is_guest(member_id):
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continue
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asst_info = assistant_info.get(assistant_id, {})
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memb_info = member_info.get(member_id, {})
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# 构建记录
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record = {
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'site_id': site_id,
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'tenant_id': self.config.get("app.tenant_id", site_id),
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'assistant_id': assistant_id,
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'assistant_nickname': asst_info.get('nickname', pair.get('assistant_nickname')),
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'member_id': member_id,
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'member_nickname': memb_info.get('nickname'),
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'member_mobile': self._mask_mobile(memb_info.get('mobile')),
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'stat_date': stat_date,
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# 全量累计统计
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'first_service_date': pair.get('first_service_date'),
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'last_service_date': pair.get('last_service_date'),
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'total_service_count': self.safe_int(pair.get('total_service_count', 0)),
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'total_service_hours': self.safe_decimal(pair.get('total_service_hours', 0)),
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'total_service_amount': self.safe_decimal(pair.get('total_service_amount', 0)),
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# 滚动窗口统计
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'service_count_7d': self.safe_int(pair.get('service_count_7d', 0)),
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'service_count_10d': self.safe_int(pair.get('service_count_10d', 0)),
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'service_count_15d': self.safe_int(pair.get('service_count_15d', 0)),
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'service_count_30d': self.safe_int(pair.get('service_count_30d', 0)),
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'service_count_60d': self.safe_int(pair.get('service_count_60d', 0)),
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'service_count_90d': self.safe_int(pair.get('service_count_90d', 0)),
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'service_hours_7d': self.safe_decimal(pair.get('service_hours_7d', 0)),
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'service_hours_10d': self.safe_decimal(pair.get('service_hours_10d', 0)),
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'service_hours_15d': self.safe_decimal(pair.get('service_hours_15d', 0)),
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'service_hours_30d': self.safe_decimal(pair.get('service_hours_30d', 0)),
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'service_hours_60d': self.safe_decimal(pair.get('service_hours_60d', 0)),
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'service_hours_90d': self.safe_decimal(pair.get('service_hours_90d', 0)),
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'service_amount_7d': self.safe_decimal(pair.get('service_amount_7d', 0)),
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'service_amount_10d': self.safe_decimal(pair.get('service_amount_10d', 0)),
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'service_amount_15d': self.safe_decimal(pair.get('service_amount_15d', 0)),
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'service_amount_30d': self.safe_decimal(pair.get('service_amount_30d', 0)),
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'service_amount_60d': self.safe_decimal(pair.get('service_amount_60d', 0)),
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'service_amount_90d': self.safe_decimal(pair.get('service_amount_90d', 0)),
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# 活跃度指标
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'days_since_last': self._calc_days_since(stat_date, pair.get('last_service_date')),
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'is_active_7d': self.safe_int(pair.get('service_count_7d', 0)) > 0,
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'is_active_30d': self.safe_int(pair.get('service_count_30d', 0)) > 0,
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}
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results.append(record)
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return results
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def load(self, transformed: List[Dict[str, Any]], context: TaskContext) -> Dict:
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"""
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加载数据
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"""
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if not transformed:
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self.logger.info("%s: 无数据需要写入", self.get_task_code())
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return {"counts": {"fetched": 0, "inserted": 0, "updated": 0, "skipped": 0, "errors": 0}}
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# 删除已存在的数据
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deleted = self.delete_existing_data(context, date_col="stat_date")
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# 批量插入
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inserted = self.bulk_insert(transformed)
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self.logger.info(
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"%s: 加载完成，删除 %d 行，插入 %d 行",
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self.get_task_code(), deleted, inserted
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)
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return {
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"counts": {
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"fetched": len(transformed),
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"inserted": inserted,
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"updated": 0,
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"skipped": 0,
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"errors": 0
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},
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"extra": {"deleted": deleted}
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}
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# ==========================================================================
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# 数据提取方法
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# ==========================================================================
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def _extract_service_pairs(
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self,
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site_id: int,
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stat_date: date
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) -> List[Dict[str, Any]]:
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"""
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提取助教-客户服务统计（含滚动窗口）
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"""
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sql = """
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WITH service_base AS (
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SELECT
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site_assistant_id AS assistant_id,
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nickname AS assistant_nickname,
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tenant_member_id AS member_id,
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DATE(start_use_time) AS service_date,
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income_seconds,
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ledger_amount
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FROM billiards_dwd.dwd_assistant_service_log
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WHERE site_id = %s
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AND tenant_member_id IS NOT NULL
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AND tenant_member_id != 0
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AND is_delete = 0
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)
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SELECT
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assistant_id,
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MAX(assistant_nickname) AS assistant_nickname,
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member_id,
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MIN(service_date) AS first_service_date,
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MAX(service_date) AS last_service_date,
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-- 全量累计
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COUNT(*) AS total_service_count,
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SUM(income_seconds) / 3600.0 AS total_service_hours,
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SUM(ledger_amount) AS total_service_amount,
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-- 7天窗口
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COUNT(CASE WHEN service_date >= %s - INTERVAL '6 days' THEN 1 END) AS service_count_7d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '6 days' THEN income_seconds ELSE 0 END) / 3600.0 AS service_hours_7d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '6 days' THEN ledger_amount ELSE 0 END) AS service_amount_7d,
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-- 10天窗口
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COUNT(CASE WHEN service_date >= %s - INTERVAL '9 days' THEN 1 END) AS service_count_10d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '9 days' THEN income_seconds ELSE 0 END) / 3600.0 AS service_hours_10d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '9 days' THEN ledger_amount ELSE 0 END) AS service_amount_10d,
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-- 15天窗口
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COUNT(CASE WHEN service_date >= %s - INTERVAL '14 days' THEN 1 END) AS service_count_15d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '14 days' THEN income_seconds ELSE 0 END) / 3600.0 AS service_hours_15d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '14 days' THEN ledger_amount ELSE 0 END) AS service_amount_15d,
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-- 30天窗口
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COUNT(CASE WHEN service_date >= %s - INTERVAL '29 days' THEN 1 END) AS service_count_30d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '29 days' THEN income_seconds ELSE 0 END) / 3600.0 AS service_hours_30d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '29 days' THEN ledger_amount ELSE 0 END) AS service_amount_30d,
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-- 60天窗口
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COUNT(CASE WHEN service_date >= %s - INTERVAL '59 days' THEN 1 END) AS service_count_60d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '59 days' THEN income_seconds ELSE 0 END) / 3600.0 AS service_hours_60d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '59 days' THEN ledger_amount ELSE 0 END) AS service_amount_60d,
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-- 90天窗口
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COUNT(CASE WHEN service_date >= %s - INTERVAL '89 days' THEN 1 END) AS service_count_90d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '89 days' THEN income_seconds ELSE 0 END) / 3600.0 AS service_hours_90d,
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SUM(CASE WHEN service_date >= %s - INTERVAL '89 days' THEN ledger_amount ELSE 0 END) AS service_amount_90d
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FROM service_base
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GROUP BY assistant_id, member_id
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HAVING MAX(service_date) >= %s - INTERVAL '90 days'
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"""
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# 构建参数（每个窗口需要3个日期参数）
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params = [site_id]
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for _ in range(6): # 6个窗口，每个3个参数
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params.extend([stat_date, stat_date, stat_date])
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params.append(stat_date) # HAVING条件
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rows = self.db.query(sql, tuple(params))
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return [dict(row) for row in rows] if rows else []
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def _extract_member_info(self, site_id: int) -> Dict[int, Dict[str, Any]]:
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"""
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提取会员信息
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"""
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sql = """
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SELECT
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member_id,
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nickname,
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mobile
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FROM billiards_dwd.dim_member
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WHERE site_id = %s
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"""
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rows = self.db.query(sql, (site_id,))
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result = {}
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for row in (rows or []):
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row_dict = dict(row)
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result[row_dict['member_id']] = row_dict
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return result
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def _extract_assistant_info(self, site_id: int) -> Dict[int, Dict[str, Any]]:
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"""
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提取助教信息
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"""
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sql = """
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SELECT
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assistant_id,
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nickname
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FROM billiards_dwd.dim_assistant
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WHERE site_id = %s
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AND scd2_is_current = 1
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"""
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rows = self.db.query(sql, (site_id,))
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result = {}
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for row in (rows or []):
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row_dict = dict(row)
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result[row_dict['assistant_id']] = row_dict
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return result
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# ==========================================================================
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# 工具方法
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# ==========================================================================
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def _mask_mobile(self, mobile: Optional[str]) -> Optional[str]:
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"""
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手机号脱敏
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"""
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if not mobile or len(mobile) < 7:
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return mobile
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return mobile[:3] + "****" + mobile[-4:]
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def _calc_days_since(self, stat_date: date, last_date: Optional[date]) -> Optional[int]:
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"""
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计算距离最近服务的天数
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"""
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if not last_date:
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return None
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if isinstance(last_date, datetime):
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last_date = last_date.date()
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return (stat_date - last_date).days
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# 便于外部导入
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__all__ = ['AssistantCustomerTask']
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