190 lines
8.1 KiB
Python
190 lines
8.1 KiB
Python
from sqlalchemy import select, literal, union_all, desc, asc, func, or_, cast, String, Numeric, Date
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from app.extensions import db
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from app.models.inbound.buy import StockBuy
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from app.models.inbound.semi import StockSemi
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from app.models.inbound.product import StockProduct
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from app.models.base import MaterialBase
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import traceback
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class InboundSummaryService:
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@staticmethod
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def get_list(page=1, per_page=10, keyword=None, start_date=None, end_date=None, source_type=None):
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"""
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聚合查询：
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1. 联合 StockBuy, StockSemi, StockProduct 三张表
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2. 关联 MaterialBase 获取名称规格
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3. 计算动态状态 (库存耗尽显示已出库)
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4. 排序：默认按入库日期倒序 (最近的在前)
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"""
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try:
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# =========================================================
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# 1. 构建三个子查询 (Subqueries)
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# =========================================================
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# --- A. 采购件 (StockBuy) ---
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q_buy = db.session.query(
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StockBuy.id.label('id'),
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StockBuy.base_id.label('base_id'),
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StockBuy.sku.label('sku'),
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StockBuy.in_date.label('inbound_date'),
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StockBuy.in_quantity.label('in_qty'),
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StockBuy.stock_quantity.label('current_qty'),
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cast(StockBuy.supplier_name, String).label('source_info'),
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StockBuy.status.label('orig_status'),
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cast(StockBuy.batch_number, String).label('batch_number'),
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cast(literal('buy'), String).label('source_type')
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)
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# --- B. 半成品 (StockSemi) ---
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q_semi = db.session.query(
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StockSemi.id.label('id'),
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StockSemi.base_id.label('base_id'),
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StockSemi.sku.label('sku'),
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StockSemi.production_date.label('inbound_date'),
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StockSemi.in_quantity.label('in_qty'),
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StockSemi.stock_quantity.label('current_qty'),
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cast(StockSemi.production_manager, String).label('source_info'),
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StockSemi.status.label('orig_status'),
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cast(StockSemi.batch_number, String).label('batch_number'),
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cast(literal('semi'), String).label('source_type')
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)
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# --- C. 成品 (StockProduct) ---
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q_product = db.session.query(
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StockProduct.id.label('id'),
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StockProduct.base_id.label('base_id'),
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StockProduct.sku.label('sku'),
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StockProduct.production_date.label('inbound_date'),
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StockProduct.in_quantity.label('in_qty'),
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StockProduct.stock_quantity.label('current_qty'),
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cast(StockProduct.production_manager, String).label('source_info'),
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StockProduct.status.label('orig_status'),
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cast(StockProduct.serial_number, String).label('batch_number'),
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cast(literal('product'), String).label('source_type')
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)
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# =========================================================
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# 2. 组合查询 (UNION ALL)
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# =========================================================
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combined_query = union_all(q_buy, q_semi, q_product)
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cte = combined_query.subquery()
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# =========================================================
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# 3. 主查询：关联 MaterialBase
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# =========================================================
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query = db.session.query(
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cte,
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MaterialBase.name.label('material_name'),
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MaterialBase.spec_model.label('spec_model'),
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MaterialBase.category.label('category'),
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MaterialBase.material_type.label('material_type')
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).outerjoin(
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MaterialBase, cte.c.base_id == MaterialBase.id
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)
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# =========================================================
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# 4. 过滤条件
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# =========================================================
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if keyword:
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rule = or_(
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cte.c.sku.ilike(f'%{keyword}%'),
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cte.c.source_info.ilike(f'%{keyword}%'),
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cte.c.batch_number.ilike(f'%{keyword}%'),
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MaterialBase.name.ilike(f'%{keyword}%'),
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MaterialBase.spec_model.ilike(f'%{keyword}%')
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)
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query = query.filter(rule)
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if start_date and end_date:
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query = query.filter(cte.c.inbound_date.between(start_date, end_date))
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if source_type:
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query = query.filter(cte.c.source_type == source_type)
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# =========================================================
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# 5. 获取总数
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# =========================================================
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count_query = db.session.query(func.count()) \
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.select_from(cte) \
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.outerjoin(MaterialBase, cte.c.base_id == MaterialBase.id)
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if keyword:
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count_query = count_query.filter(rule)
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if start_date and end_date:
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count_query = count_query.filter(cte.c.inbound_date.between(start_date, end_date))
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if source_type:
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count_query = count_query.filter(cte.c.source_type == source_type)
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total = count_query.scalar() or 0
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# =========================================================
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# 6. 排序与分页
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# =========================================================
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# ★★★ 修改处：优先按入库日期倒序排列 (最近的在前) ★★★
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# 如果日期相同，再按 SKU 排序，保证分页稳定性
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query = query.order_by(desc(cte.c.inbound_date), asc(cte.c.sku))
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pagination = query.limit(per_page).offset((page - 1) * per_page).all()
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# =========================================================
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# 7. 数据格式化
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# =========================================================
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items = []
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type_map = {
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'buy': '采购入库',
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'semi': '半成品生产',
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'product': '成品完工'
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}
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for row in pagination:
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date_str = ""
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if row.inbound_date:
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try:
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date_str = row.inbound_date.strftime('%Y-%m-%d')
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except Exception:
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date_str = str(row.inbound_date)
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in_qty = float(row.in_qty) if row.in_qty is not None else 0.0
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current_qty = float(row.current_qty) if row.current_qty is not None else 0.0
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# 状态逻辑
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final_status = row.orig_status
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if current_qty <= 0:
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final_status = "已出库"
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elif current_qty < in_qty:
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final_status = "部分出库"
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items.append({
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'id': row.id,
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'sku': row.sku or "",
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'name': row.material_name or "未知物品",
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'spec_model': row.spec_model or "",
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'category': row.category or "",
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'material_type': row.material_type or "",
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'inbound_date': date_str,
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'quantity': in_qty,
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'current_qty': current_qty,
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'source_info': row.source_info or "",
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'status': final_status,
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'source_type': row.source_type,
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'type_label': type_map.get(row.source_type, "未知类型"),
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'batch_number': row.batch_number or ""
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})
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return {
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'items': items,
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'total': total,
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'pages': (total + per_page - 1) // per_page if per_page > 0 else 0,
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'current_page': page
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}
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except Exception as e:
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print("【InboundSummaryService Error】:", str(e))
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traceback.print_exc()
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raise e |