feat: 生产订单支持一次多选 BOM 且各 BOM 独立设置生产数量

- 新增中间表 prod_order_bom(order_id, bom_id, qty)，一个订单可挂多个 BOM，每个 BOM 单独设生产数量
- prod_order.qty 改为各 BOM 数量汇总，bom_id 仅作主 BOM 冗余摘要
- 物料需求按 Σ(BOM 单套用量 × 各自生产数量) 跨 BOM 合并聚合，覆盖详情/领料/调入/导出
- 订单表单改为动态多行(BOM 下拉 + 数量输入 + 删除行)，列表与导出展示「BOM清单(型号×数量)」
- 导出 Excel 增至 3 个 sheet：订单信息 / BOM清单 / 领料明细
- 修复 _parse_bom_pairs 表单字段名 bom_id[]/qty[] 解析；order_delete 一并级联删除 prod_order_bom
- build_exe.py 增加构建后自动拷贝 dist_pkg→dist（EXE 同目录即数据库所在）

Co-Authored-By: WorkBuddy <workbuddy@tencent.com>

app.py

@@ -20,7 +20,7 @@ from flask import (Flask, render_template, request, redirect, url_for,
 from sqlalchemy import update
 
 from models import (db, User, Material, Inbound, Outbound,
-                    Bom, BomItem, ProdOrder, ProdOrderAlloc, OperationLog, Factory, Transfer, Substitute, PrepPlan)
+                    Bom, BomItem, ProdOrder, ProdOrderAlloc, ProdOrderBom, OperationLog, Factory, Transfer, Substitute, PrepPlan)
 
 # ---------------- 路径(兼容 PyInstaller 冻结) ----------------
 if getattr(sys, "frozen", False):
@@ -1462,9 +1462,10 @@ def orders():
     os_ = db.session.scalars(db.select(ProdOrder).order_by(ProdOrder.order_no.desc())).all()
     data = []
     for o in os_:
-        bom = db.session.get(Bom, o.bom_id)
+        lines = order_bom_lines(o)
         fac = db.session.get(Factory, o.factory_id) if o.factory_id else None
-        data.append({"o": o, "bom": bom, "factory": fac})
+        total = sum(q for _, q in lines)
+        data.append({"o": o, "lines": lines, "factory": fac, "total": total})
     return render_template("orders.html", data=data)
 
 
@@ -1476,9 +1477,10 @@ def orders_export():
     os_ = db.session.scalars(db.select(ProdOrder).order_by(ProdOrder.order_no.desc())).all()
     data = []
     for o in os_:
-        bom = db.session.get(Bom, o.bom_id)
+        lines = order_bom_lines(o)
         fac = db.session.get(Factory, o.factory_id) if o.factory_id else None
-        data.append({"o": o, "bom": bom, "factory": fac})
+        total = sum(q for _, q in lines)
+        data.append({"o": o, "lines": lines, "factory": fac, "total": total})
     from excel_io import export_orders
     path = os.path.join(EXE_DIR, f"生产订单_{date.today().isoformat()}.xlsx")
     export_orders(path, data)
@@ -1492,24 +1494,30 @@ def order_new():
     boms_all = db.session.scalars(db.select(Bom).order_by(Bom.code)).all()
     factories = db.session.scalars(db.select(Factory).order_by(Factory.code)).all()
     if request.method == "POST":
-        bom_id = int(request.form["bom_id"])
+        pairs = _parse_bom_pairs(request.form)
-        qty = float(request.form["qty"])
         fid_raw = (request.form.get("factory_id") or "").strip()
         factory_id = int(fid_raw) if fid_raw.isdigit() else None
-        if qty <= 0:
+        if not pairs:
-            flash("接单量必须大于 0", "error")
+            flash("请至少选择一个 BOM 并填写大于 0 的生产数量", "error")
         else:
             order_no = request.form.get("order_no", "").strip() or _gen_order_no()
             if db.session.scalar(db.select(ProdOrder).where(ProdOrder.order_no == order_no)):
                 order_no = _gen_order_no()
-            o = ProdOrder(order_no=order_no, bom_id=bom_id, factory_id=factory_id, qty=qty,
+            total = sum(q for _, q in pairs)
-                          status="planned", operator=(g.user.display_name or g.user.username),
+            o = ProdOrder(order_no=order_no, bom_id=pairs[0][0], factory_id=factory_id,
+                          qty=total, status="planned",
+                          operator=(g.user.display_name or g.user.username),
                           remark=request.form.get("remark", "").strip())
             db.session.add(o)
+            db.session.flush()   # 需要 o.id 供关联行使用
+            for bid, qv in pairs:
+                db.session.add(ProdOrderBom(order_id=o.id, bom_id=bid, qty=qv))
             db.session.commit()
-            log_action("新建生产订单", order_no, f"接单量 {qty}")
+            log_action("新建生产订单", order_no,
+                       f"含 {len(pairs)} 个BOM, 总接单量 {total}")
             return redirect(url_for("order_detail", oid=o.id))
-    return render_template("order_form.html", boms=boms_all, factories=factories, o=None)
+    return render_template("order_form.html", boms=boms_all, factories=factories,
+                           o=None, initial_lines=[])
 
 
 @app.route("/order/<int:oid>")
@@ -1519,8 +1527,8 @@ def order_detail(oid):
     o = db.session.get(ProdOrder, oid)
     if not o:
         return redirect(url_for("orders"))
-    bom = db.session.get(Bom, o.bom_id)
+    lines = order_bom_lines(o)
-    items = db.session.scalars(db.select(BomItem).where(BomItem.bom_id == o.bom_id)).all()
+    total_qty = sum(q for _, q in lines)
     # 查看订单时, 库存/缺口按「下单之前」的工厂库存快照展示(即按下单那一刻的库存),
     # 按下单时间截断, 自动排除该订单自身后续的调入/领料及下单后发生的其他出入库,
     # 用于还原下单时的可供料情况, 不受后续出入库影响。
@@ -1531,9 +1539,7 @@ def order_detail(oid):
         db.select(ProdOrderAlloc).where(ProdOrderAlloc.order_id == oid)).all()
     alloc_map = {a.material_id: a for a in allocs}     # material_id -> alloc 行
     reqs = []
-    for it in items:
+    for m, need in order_aggregated_materials(o):
-        m = db.session.get(Material, it.material_id)
-        need = it.qty_per_unit * o.qty
         have = sm.get(m.id, 0)
         a = alloc_map.get(m.id)
         subs = [{"pn": s["sub"].part_number, "mf": s["sub"].manufacturer or "-",
@@ -1551,8 +1557,8 @@ def order_detail(oid):
     posted_count = sum(1 for a in allocs if a.posted)
     factories = db.session.scalars(
         db.select(Factory).where(Factory.enabled == True).order_by(Factory.code)).all()
-    return render_template("order_detail.html", o=o, bom=bom, reqs=reqs, factory=fac,
+    return render_template("order_detail.html", o=o, lines=lines, total_qty=total_qty,
-                           factories=factories,
+                           reqs=reqs, factory=fac, factories=factories,
                            posted_total=posted_total, planned_total=planned_total,
                            posted_count=posted_count)
 
@@ -1565,17 +1571,15 @@ def order_export(oid):
     o = db.session.get(ProdOrder, oid)
     if not o:
         return redirect(url_for("orders"))
-    bom = db.session.get(Bom, o.bom_id)
+    lines = order_bom_lines(o)
-    items = db.session.scalars(db.select(BomItem).where(BomItem.bom_id == o.bom_id)).all()
+    total_qty = sum(q for _, q in lines)
     sm = stock_map_as_of(o.factory_id, o.created_at)
     fac = db.session.get(Factory, o.factory_id) if o.factory_id else None
     allocs = db.session.scalars(
         db.select(ProdOrderAlloc).where(ProdOrderAlloc.order_id == oid)).all()
     alloc_map = {a.material_id: a for a in allocs}
     reqs = []
-    for it in items:
+    for m, need in order_aggregated_materials(o):
-        m = db.session.get(Material, it.material_id)
-        need = it.qty_per_unit * o.qty
         have = sm.get(m.id, 0)
         a = alloc_map.get(m.id)
         subs = [{"pn": s["sub"].part_number, "mf": s["sub"].manufacturer or "-",
@@ -1591,7 +1595,7 @@ def order_export(oid):
     posted_count = sum(1 for a in allocs if a.posted)
     from excel_io import export_order_detail
     path = os.path.join(EXE_DIR, f"生产订单_{o.order_no}.xlsx")
-    export_order_detail(path, o, bom, reqs, fac, posted_total, planned_total, posted_count)
+    export_order_detail(path, o, lines, reqs, fac, posted_total, planned_total, posted_count)
     return send_file(path, as_attachment=True, download_name=os.path.basename(path))
 
 
@@ -1602,13 +1606,10 @@ def order_pick(oid):
     o = db.session.get(ProdOrder, oid)
     if not o or o.status == "picked":
         return redirect(url_for("orders"))
-    items = db.session.scalars(db.select(BomItem).where(BomItem.bom_id == o.bom_id)).all()
     sm = stock_map(o.factory_id)
     picks = 0
     shorts = []
-    for it in items:
+    for m, need in order_aggregated_materials(o):
-        m = db.session.get(Material, it.material_id)
-        need = it.qty_per_unit * o.qty
         if need <= 0:
             continue
         db.session.add(Outbound(material_id=m.id, factory_id=o.factory_id, qty=need,
@@ -1638,13 +1639,13 @@ def order_edit(oid):
     boms_all = db.session.scalars(db.select(Bom).order_by(Bom.code)).all()
     factories = db.session.scalars(db.select(Factory).order_by(Factory.code)).all()
     if request.method == "POST":
-        bom_id = int(request.form["bom_id"])
+        pairs = _parse_bom_pairs(request.form)
-        qty = float(request.form["qty"])
         fid_raw = (request.form.get("factory_id") or "").strip()
         factory_id = int(fid_raw) if fid_raw.isdigit() else None
-        if qty <= 0:
+        if not pairs:
-            flash("接单量必须大于 0", "error")
+            flash("请至少选择一个 BOM 并填写大于 0 的生产数量", "error")
-        else:
+            return render_template("order_form.html", boms=boms_all, factories=factories,
+                                   o=o, initial_lines=[[b.id, q] for b, q in order_bom_lines(o)])
         old_no = o.order_no
         order_no = request.form.get("order_no", "").strip() or o.order_no
         if order_no != o.order_no and db.session.scalar(
@@ -1652,12 +1653,16 @@ def order_edit(oid):
             flash(f"订单号 {order_no} 已存在, 已保留原单号", "warn")
             order_no = o.order_no
         o.order_no = order_no
-            o.bom_id = bom_id
+        o.bom_id = pairs[0][0]
         o.factory_id = factory_id
-            o.qty = qty
+        o.qty = sum(q for _, q in pairs)
         o.remark = request.form.get("remark", "").strip()
-            # 仅更新订单头; 已录入的「调入数量」计划与已入账流水保持不变
+        # 同步 BOM 行(删除旧行, 按表单重建); 已录入的「调入数量」计划与已入账流水保持不变
-            # (需求: 改订单号/改生产数量均不冲销, 调入数量保持编辑前的值)。
+        db.session.execute(
+            db.delete(ProdOrderBom).where(ProdOrderBom.order_id == o.id))
+        for bid, qv in pairs:
+            db.session.add(ProdOrderBom(order_id=o.id, bom_id=bid, qty=qv))
+        # (需求: 改 BOM/改数量均不冲销调入计划与已入账流水, 它们保持编辑前的值)
         if order_no != old_no:
             # 备份后, 把关联流水(订单号作为关联键 order_ref)同步为新单号, 使其余数据保持一致
             try:
@@ -1674,15 +1679,17 @@ def order_edit(oid):
                 update(Outbound).where(Outbound.order_ref == old_no)
                 .values(order_ref=order_no))
             log_action("编辑生产订单", order_no,
-                           f"接单量 {qty}; 订单号 {old_no}→{order_no}, 已同步关联流水 order_ref"
+                       f"含 {len(pairs)} 个BOM, 总接单量 {o.qty}; 订单号 {old_no}→{order_no}, 已同步关联流水 order_ref"
                        + (f"; 备份 {os.path.basename(_bak)}" if _bak else ""))
             flash(f"订单已更新（订单号 {old_no}→{order_no}），调入数量与已入账流水保持不变", "ok")
         else:
-                log_action("编辑生产订单", order_no, f"接单量 {qty}; 订单头字段更新(其余数据不变)")
+            log_action("编辑生产订单", order_no,
+                       f"含 {len(pairs)} 个BOM, 总接单量 {o.qty}; 订单头字段更新(其余数据不变)")
             flash("订单已更新，调入数量与已入账流水保持不变", "ok")
         db.session.commit()
         return redirect(url_for("order_detail", oid=oid))
-    return render_template("order_form.html", boms=boms_all, factories=factories, o=o)
+    return render_template("order_form.html", boms=boms_all, factories=factories,
+                           o=o, initial_lines=[[b.id, q] for b, q in order_bom_lines(o)])
 
 
 @app.route("/order/<int:oid>/delete", methods=["POST"])
@@ -1696,6 +1703,9 @@ def order_delete(oid):
     # 删除关联的「调入数量」计划行
     db.session.execute(
         db.delete(ProdOrderAlloc).where(ProdOrderAlloc.order_id == oid))
+    # 删除关联的「多 BOM 清单」行(订单头删除时一并清除, 避免孤儿行)
+    db.session.execute(
+        db.delete(ProdOrderBom).where(ProdOrderBom.order_id == oid))
     # 级联删除该订单关联的领料出库流水(用途=生产领用, order_ref=订单号)
     n_out = db.session.execute(
         db.delete(Outbound).where(Outbound.order_ref == no)).rowcount
@@ -1709,6 +1719,66 @@ def order_delete(oid):
     return redirect(url_for("orders"))
 
 
+def order_bom_lines(o):
+    """返回该订单的 BOM 行 [(bom, qty)], 按 BOM code 排序。
+
+    优先读 prod_order_bom 关联表(一订单多 BOM); 若该表为空(旧库未迁移或异常),
+    回退到 ProdOrder.bom_id / qty 单值。
+    """
+    rows = db.session.scalars(
+        db.select(ProdOrderBom)
+        .where(ProdOrderBom.order_id == o.id)
+        .join(Bom, Bom.id == ProdOrderBom.bom_id)
+        .order_by(Bom.code)).all()
+    out = []
+    for r in rows:
+        b = db.session.get(Bom, r.bom_id)
+        if b:
+            out.append((b, r.qty))
+    if not out and o.bom_id:
+        b = db.session.get(Bom, o.bom_id)
+        if b:
+            out.append((b, o.qty or 0))
+    return out
+
+
+def order_aggregated_materials(o):
+    """聚合该订单所有 BOM 的物料需求。
+
+    返回 [(material, need_qty)]; need_qty = Σ(该BOM单套用量 × 该BOM本订单生产数量)。
+    同一物料出现在多个 BOM 中时, 需求数量累加合并(对应一个 ProdOrderAlloc 行)。
+    """
+    agg = {}
+    for b, qty in order_bom_lines(o):
+        items = db.session.scalars(
+            db.select(BomItem).where(BomItem.bom_id == b.id)).all()
+        for it in items:
+            agg[it.material_id] = agg.get(it.material_id, 0) + (it.qty_per_unit or 0) * qty
+    return [(db.session.get(Material, mid), need) for mid, need in agg.items() if mid]
+
+
+def _parse_bom_pairs(form):
+    """从表单解析 (bom_id, qty) 列表: 仅保留已选 BOM 且数量 > 0 的行。
+
+    表单字段: bom_id[] / qty[] (数组, 逐行对应; 方括号为 HTML 原生多值命名)。
+    """
+    bom_ids = form.getlist("bom_id[]")
+    qtys = form.getlist("qty[]")
+    pairs = []
+    for bid, q in zip(bom_ids, qtys):
+        bid = (bid or "").strip()
+        if not bid or not bid.isdigit():
+            continue
+        try:
+            qv = float((q or "").strip() or 0)
+        except ValueError:
+            qv = 0
+        if qv <= 0:
+            continue
+        pairs.append((int(bid), qv))
+    return pairs
+
+
 def _find_posted_flows(order_no, material_id):
     """返回某生产订单某物料已入账调入流水(源厂出库 + 生产厂入库)。"""
     outs = db.session.scalars(db.select(Outbound).where(
@@ -1824,10 +1894,10 @@ def order_alloc_save(oid):
     if not o:
         return redirect(url_for("orders"))
     op = g.user.display_name or g.user.username
-    items = db.session.scalars(db.select(BomItem).where(BomItem.bom_id == o.bom_id)).all()
+    items = order_aggregated_materials(o)
     edited = 0
-    for it in items:
+    for m, _need in items:
-        raw = request.form.get(f"alloc_{it.material_id}", "").strip()
+        raw = request.form.get(f"alloc_{m.id}", "").strip()
         if raw == "":
             continue
         try:
@@ -1836,7 +1906,7 @@ def order_alloc_save(oid):
             continue
         if qty < 0:
             qty = 0
-        st = _apply_alloc_change(o, it.material_id, qty, op, account_new=False)
+        st = _apply_alloc_change(o, m.id, qty, op, account_new=False)
         if st in ("posted", "cancel"):
             edited += 1
     db.session.commit()
@@ -1873,12 +1943,12 @@ def order_alloc_post(oid):
         flash("调入来源工厂不存在", "error")
         return redirect(url_for("order_detail", oid=oid))
 
-    items = db.session.scalars(db.select(BomItem).where(BomItem.bom_id == o.bom_id)).all()
+    items = order_aggregated_materials(o)
     op = g.user.display_name or g.user.username
     n = 0
     shorts = []
-    for it in items:
+    for m, _need in items:
-        raw = request.form.get(f"alloc_{it.material_id}", "").strip()
+        raw = request.form.get(f"alloc_{m.id}", "").strip()
         qty = None
         if raw != "":
             try:
@@ -1887,7 +1957,7 @@ def order_alloc_post(oid):
                 qty = None
         a = db.session.scalar(db.select(ProdOrderAlloc).where(
             ProdOrderAlloc.order_id == oid,
-            ProdOrderAlloc.material_id == it.material_id))
+            ProdOrderAlloc.material_id == m.id))
         if qty is None:
             if a and a.posted:
                 qty = a.alloc_qty  # 已入账且无输入 = 维持, helper 判定 unchanged 跳过
@@ -1895,12 +1965,11 @@ def order_alloc_post(oid):
                 continue  # 未入账且无输入 = 不处理
         if qty < 0:
             qty = 0
-        st = _apply_alloc_change(o, it.material_id, qty, op,
+        st = _apply_alloc_change(o, m.id, qty, op,
                                  from_id=from_id, account_new=True)
         if st == "posted":
             n += 1
         elif st == "short":
-            m = db.session.get(Material, it.material_id)
             if a and a.posted:
                 shorts.append(f"{m.part_number}(已入账调入修改, 源厂{ff.code}库存不足)")
             else:
@@ -2529,6 +2598,19 @@ def seed_admin():
             db.session.add(User(username="admin", password=sha256("admin123"),
                                 role="admin", display_name="管理员"))
             db.session.commit()
+        # ---- 一订单多 BOM: 为旧库(仅 bom_id 单值)的订单补齐 prod_order_bom 行(幂等) ----
+        try:
+            legacy = db.session.scalars(db.select(ProdOrder)).all()
+            for o in legacy:
+                exists = db.session.scalar(
+                    db.select(db.func.count(ProdOrderBom.id))
+                    .where(ProdOrderBom.order_id == o.id))
+                if exists == 0 and o.bom_id:
+                    db.session.add(ProdOrderBom(
+                        order_id=o.id, bom_id=o.bom_id, qty=o.qty or 0))
+            db.session.commit()
+        except Exception:
+            db.session.rollback()
 
 
 if __name__ == "__main__":

build_exe.py

@@ -32,4 +32,14 @@ args = [
 ]
 print("PyInstaller args:", args)
 run(args)
-print("BUILD DONE ->", os.path.join(HERE, "dist", "MaterialWMS.exe"))
+# 构建产物在 dist_pkg/; 统一拷贝到 dist/ (EXE 同目录即数据库所在, 才是实际发布入口)
+built = os.path.join(HERE, "dist_pkg", "MaterialWMS.exe")
+target = os.path.join(HERE, "dist", "MaterialWMS.exe")
+if os.path.exists(built):
+    import shutil
+    os.makedirs(os.path.dirname(target), exist_ok=True)
+    shutil.copyfile(built, target)
+    print("COPIED ->", target)
+else:
+    print("WARN: built exe not found at", built)
+print("BUILD DONE ->", target)

excel_io.py

@@ -330,53 +330,62 @@ def export_ledger(target, rows):
 def export_orders(target, data):
     """导出生产订单列表。
 
-    data: [{o, bom, factory}] (与 orders() 返回一致)。
+    data: [{o, lines, factory, total}] (与 orders() 返回一致)。
+    lines: [(Bom, qty)] 该订单的 BOM 行(可多个)。
     """
     wb = Workbook()
     ws = wb.active
     ws.title = "生产订单"
-    head = ["订单号", "BOM型号", "BOM名称", "接单量", "生产工厂", "状态",
+    head = ["订单号", "BOM清单(型号×数量)", "生产工厂", "状态",
-            "经手人", "下单时间", "备注"]
+            "经手人", "下单时间", "备注", "总接单量"]
     ws.append(head)
     for c in ws[1]:
         c.font = Font(bold=True)
         c.fill = PatternFill("solid", fgColor="DDEBF7")
     for d in data:
         o = d["o"]
-        bom = d["bom"]
+        lines = d.get("lines") or []
         fac = d["factory"]
+        total = d.get("total") or 0
+        bom_info = "\n".join(
+            f"{b.code}{('·' + b.name) if b.name else ''}×{q}" for b, q in lines) or "—"
         status = "已领料" if o.status == "picked" else "待领料"
         ws.append([
             o.order_no,
-            bom.code if bom else "",
+            bom_info,
-            bom.name if bom else "",
-            o.qty,
             (f"{fac.code}·{fac.name}" if fac else "未指定"),
             status,
             o.operator or "",
             o.created_at.strftime("%Y-%m-%d %H:%M") if o.created_at else "",
             o.remark or "",
+            total,
         ])
         if o.status == "picked":
-            ws.cell(row=ws.max_row, column=6).fill = PatternFill("solid", fgColor="C6EFCE")
+            ws.cell(row=ws.max_row, column=4).fill = PatternFill("solid", fgColor="C6EFCE")
         else:
-            ws.cell(row=ws.max_row, column=6).fill = PatternFill("solid", fgColor="FFE699")
+            ws.cell(row=ws.max_row, column=4).fill = PatternFill("solid", fgColor="FFE699")
+        ws.cell(row=ws.max_row, column=2).alignment = Alignment(wrap_text=True, vertical="top")
     ws.freeze_panes = "A2"
     wb.save(target)
 
 
-def export_order_detail(target, o, bom, reqs, factory,
+def export_order_detail(target, o, lines, reqs, factory,
                         posted_total, planned_total, posted_count):
-    """导出单个生产订单详情(派工单)：订单信息 sheet + 领料明细 sheet。"""
+    """导出单个生产订单详情(派工单)：订单信息 sheet + BOM清单 sheet + 领料明细 sheet。
+
+    lines: [(Bom, qty)] 该订单的 BOM 行(可多个); 领料明细已按全部 BOM 汇总。
+    """
     wb = Workbook()
     ws = wb.active
     ws.title = "订单信息"
     ws.append(["生产订单派工单"])
     ws["A1"].font = Font(bold=True, size=14)
+    total_qty = sum(q for _, q in (lines or []))
     info = [
         ("订单号", o.order_no),
-        ("BOM型号", (bom.code if bom else "-") + (f" · {bom.name}" if bom and bom.name else "")),
+        ("BOM清单", "\n".join(
-        ("接单量", o.qty),
+            f"{b.code}{('·' + b.name) if b.name else ''}×{q}" for b, q in (lines or [])) or "-"),
+        ("总接单量", total_qty),
         ("生产工厂", (f"{factory.code}·{factory.name}" if factory else "未指定（按汇总库存）")),
         ("经手人", o.operator or "-"),
         ("下单时间", o.created_at.strftime("%Y-%m-%d %H:%M") if o.created_at else ""),
@@ -387,21 +396,32 @@ def export_order_detail(target, o, bom, reqs, factory,
     r = 3
     for k, v in info:
         ws.cell(row=r, column=1, value=k).font = Font(bold=True)
-        ws.cell(row=r, column=2, value=v)
+        cell = ws.cell(row=r, column=2, value=v)
+        if k == "BOM清单":
+            cell.alignment = Alignment(wrap_text=True, vertical="top")
         r += 1
 
-    ws2 = wb.create_sheet("领料明细")
+    ws2 = wb.create_sheet("BOM清单")
+    ws2.append(["BOM型号", "BOM名称", "生产数量"])
+    for c in ws2[1]:
+        c.font = Font(bold=True)
+        c.fill = PatternFill("solid", fgColor="DDEBF7")
+    for b, q in (lines or []):
+        ws2.append([b.code, b.name or "", q])
+    ws2.freeze_panes = "A2"
+
+    ws3 = wb.create_sheet("领料明细")
     head = ["物料编号", "型号", "下单前库存", "需求数量", "缺口",
             "调入数量", "状态", "工厂库存", "可替代料"]
-    ws2.append(head)
+    ws3.append(head)
-    for c in ws2[1]:
+    for c in ws3[1]:
         c.font = Font(bold=True)
         c.fill = PatternFill("solid", fgColor="DDEBF7")
     for x in reqs:
         subs = "、".join(
             f"{s['pn']}·{s['stock']}{'✓' if s['available'] else '✗'}" for s in x["subs"]
         ) if x["subs"] else "—"
-        ws2.append([
+        ws3.append([
             x["m"].part_number,
             x["m"].manufacturer or "-",
             round(x["have"], 3),
@@ -413,10 +433,10 @@ def export_order_detail(target, o, bom, reqs, factory,
             subs,
         ])
         if x["short"]:
-            ws2.cell(row=ws2.max_row, column=7).fill = PatternFill("solid", fgColor="FFC7CE")
+            ws3.cell(row=ws3.max_row, column=7).fill = PatternFill("solid", fgColor="FFC7CE")
         else:
-            ws2.cell(row=ws2.max_row, column=7).fill = PatternFill("solid", fgColor="C6EFCE")
+            ws3.cell(row=ws3.max_row, column=7).fill = PatternFill("solid", fgColor="C6EFCE")
-    ws2.freeze_panes = "A2"
+    ws3.freeze_panes = "A2"
     wb.save(target)
 
 

models.py

@@ -118,6 +118,21 @@ class ProdOrderAlloc(db.Model):
     created_at = db.Column(db.DateTime, default=datetime.now)
 
 
+class ProdOrderBom(db.Model):
+    """生产订单包含的 BOM 行: 一个订单可含多个 BOM, 每个 BOM 独立的生产数量。
+
+    - 这是「一订单多 BOM」的唯一数据源, 取代原 ProdOrder.bom_id 的单值绑定。
+    - (order_id, bom_id) 唯一: 同一 BOM 在同一订单中只出现一行(数量可累加合并)。
+    - ProdOrder.bom_id / qty 仅作为兼容旧数据与列表快速展示的冗余(主BOM / 总接单量)。
+    """
+    __tablename__ = "prod_order_bom"
+    id = db.Column(db.Integer, primary_key=True)
+    order_id = db.Column(db.Integer, db.ForeignKey("prod_order.id"), nullable=False, index=True)
+    bom_id = db.Column(db.Integer, db.ForeignKey("bom.id"), nullable=False, index=True)
+    qty = db.Column(db.Float, nullable=False, default=0)   # 该 BOM 在本订单的生产数量
+    __table_args__ = (UniqueConstraint("order_id", "bom_id", name="uq_pob_order_bom"),)
+
+
 class Substitute(db.Model):
     """替代料关系: 某主料(main)可由某替代料(sub)替代使用。
 

templates/order_detail.html

@@ -28,12 +28,13 @@
 </div>
 <div class="card" style="margin-bottom:16px">
   <p class="small muted" style="margin-top:0"><b>下单信息（按下单时记录）</b></p>
-  <p>BOM: <b>{{ bom.code if bom else '-' }}</b>{% if bom and bom.name %} · {{ bom.name }}{% endif %} ｜ 接单量: <b>{{ '%.2f'|format(o.qty) }}</b> ｜ 生产工厂: <b>{% if factory %}{{ factory.code }}{% if factory.name %} · {{ factory.name }}{% endif %}{% else %}未指定（按汇总库存）{% endif %}</b> ｜ 经手人: {{ o.operator or '-' }}{% if o.created_at %} ｜ 下单时间: {{ o.created_at.strftime('%Y-%m-%d %H:%M') }}{% endif %}</p>
+  <p><b>BOM 清单：</b>{% for b, q in lines %}<span style="display:inline-block;margin-right:14px">{{ b.code }}{% if b.name %} · {{ b.name }}{% endif %} × <b>{{ '%.2f'|format(q) }}</b></span>{% else %}-{% endfor %}</p>
+  <p>总接单量(合计): <b>{{ '%.2f'|format(total_qty) }}</b> ｜ 生产工厂: <b>{% if factory %}{{ factory.code }}{% if factory.name %} · {{ factory.name }}{% endif %}{% else %}未指定（按汇总库存）{% endif %}</b> ｜ 经手人: {{ o.operator or '-' }}{% if o.created_at %} ｜ 下单时间: {{ o.created_at.strftime('%Y-%m-%d %H:%M') }}{% endif %}</p>
   {% if o.remark %}<p class="small muted">备注: {{ o.remark }}</p>{% endif %}
   <p class="small muted print-hide" style="margin-bottom:0">提示：点击「编辑订单」保存后，该订单会冲销已产生的调入/领料流水并清空调入计划，自动回到「刚下单」状态（待领料、未调拨），可重新规划。</p>
 </div>
 
-<h3>领料需求与调入 (单套用量 × 接单量){% if factory %} ｜ 按下单前库存核算{% endif %}</h3>
+<h3>领料需求与调入 (按各 BOM 单套用量 × 各自生产数量 汇总){% if factory %} ｜ 按下单前库存核算{% endif %}</h3>
 <p class="small muted" style="margin-top:-6px">库存口径：下方「下单前库存」为 <b>订单下单那一刻、所属工厂的库存快照</b>（按下单时间截断，已自动排除该订单自身后续的调入/领料及下单后发生的其他出入库），用于还原下单时的可供料情况。{% if not factory %}本单未指定生产工厂，按下单前全部工厂汇总库存展示。{% endif %}</p>
 
 <form method="post" action="{{ url_for('order_alloc_save', oid=o.id) }}">

templates/order_form.html

@@ -1,21 +1,18 @@
 {% extends "base.html" %}
 {% block title %}{{ '编辑生产订单' if o else '新建生产订单' }}{% endblock %}
 {% block content %}
-<form method="post" class="card form-card" style="max-width:520px"
+<form method="post" class="card form-card" style="max-width:720px"
       action="{{ url_for('order_edit', oid=o.id) if o else url_for('order_new') }}"
-      {% if o %}onsubmit="return confirm('确认保存修改？已录入的调入数量与已入账流水将保持不变。');"{% endif %}>
+      {% if o %}onsubmit="return confirm('确认保存修改？已录入的调入数量与已入账流水将保持不变（被移除 BOM 中已入账的物料仍保留其流水）。');"{% endif %}>
   <h3>{{ '编辑生产订单' if o else '新建生产订单' }}</h3>
   <label>订单号 {% if o %}(单号不可重复){% else %}(留空自动生成){% endif %}</label>
   <input name="order_no" value="{{ o.order_no if o else '' }}" placeholder="如 WO20260911xxx">
-  <label>BOM 型号 *</label>
+
-  <select name="bom_id" required>
+  <label>BOM 与生产数量 *</label>
-    <option value="">-- 选择 BOM --</option>
+  <p class="small muted" style="margin:0 0 6px">可在同一订单中加入多个 BOM，每个 BOM 独立填写生产数量；点击「+ 添加 BOM」增加一行，不需要的行可删除。</p>
-    {% for b in boms %}
+  <div id="bomRows" class="bom-rows"></div>
-    <option value="{{ b.id }}" {% if o and o.bom_id == b.id %}selected{% endif %}>{{ b.code }}{% if b.name %} · {{ b.name }}{% endif %}</option>
+  <button type="button" class="btn" style="margin:2px 0 12px" onclick="addBomRow()">+ 添加 BOM</button>
-    {% endfor %}
+
-  </select>
-  <label>接单量 (台/套) *</label>
-  <input name="qty" type="number" step="0.01" min="0.01" required value="{{ '%.2f'|format(o.qty) if o else '' }}">
   <label>生产工厂</label>
   <select name="factory_id">
     <option value="">-- 不指定（汇总库存校验）--</option>
@@ -29,6 +26,39 @@
     <button class="primary">{{ '保存修改' if o else '生成订单' }}</button>
     <a class="btn" href="{{ url_for('orders') }}">取消</a>
   </div>
-  <p class="small muted">生成后可在订单详情页按 BOM 展开领料需求, 并手动录入每个物料的「调入数量」。</p>
+  <p class="small muted">生成后可在订单详情页按各 BOM 展开领料需求, 并手动录入每个物料的「调入数量」。</p>
 </form>
+
+{# 隐藏模板: 供 JS 克隆(含全部 BOM 选项) #}
+<template id="bomTpl">
+  <div class="bom-row" style="display:flex; gap:10px; align-items:center; margin-bottom:6px">
+    <select name="bom_id[]" required>
+      <option value="">-- 选择 BOM --</option>
+      {% for b in boms %}<option value="{{ b.id }}">{{ b.code }}{% if b.name %} · {{ b.name }}{% endif %}</option>{% endfor %}
+    </select>
+    <input name="qty[]" type="number" step="0.01" min="0.01" required placeholder="生产数量" style="width:130px">
+    <button type="button" class="link-danger" onclick="this.closest('.bom-row').remove();checkRows()">删除</button>
+  </div>
+</template>
+
+<script>
+  function addBomRow(sel, qty){
+    var tpl = document.getElementById('bomTpl');
+    var row = tpl.content.firstElementChild.cloneNode(true);
+    if (sel) row.querySelector('select').value = String(sel);
+    if (qty != null && qty !== undefined) row.querySelector('input').value = qty;
+    document.getElementById('bomRows').appendChild(row);
+    checkRows();
+  }
+  function checkRows(){
+    var rows = document.querySelectorAll('#bomRows .bom-row');
+    rows.forEach(function(r){
+      var btn = r.querySelector('button');
+      if (btn) btn.style.display = rows.length > 1 ? '' : 'none';
+    });
+  }
+  var init = {{ initial_lines|tojson }};
+  if (init && init.length){ init.forEach(function(x){ addBomRow(x[0], x[1]); }); }
+  else { addBomRow(); }
+</script>
 {% endblock %}

templates/orders.html

@@ -7,13 +7,13 @@
   <a class="btn" href="{{ url_for('orders_export') }}">导出 Excel</a>
 </div>
 <table class="tbl">
-  <thead><tr><th>订单号</th><th>BOM</th><th>接单量</th><th>生产工厂</th><th>状态</th><th>经手人</th><th>操作</th></tr></thead>
+  <thead><tr><th>订单号</th><th>BOM 清单（型号 × 数量）</th><th>总接单量</th><th>生产工厂</th><th>状态</th><th>经手人</th><th>操作</th></tr></thead>
   <tbody>
     {% for d in data %}
     <tr>
       <td>{{ d.o.order_no }}</td>
-      <td>{{ d.bom.code if d.bom else '-' }}{% if d.bom and d.bom.name %} · {{ d.bom.name }}{% endif %}</td>
+      <td>{% for b, q in d.lines %}<div>{{ b.code }}{% if b.name %} · {{ b.name }}{% endif %} × {{ '%.2f'|format(q) }}</div>{% else %}-{% endfor %}</td>
-      <td class="num">{{ '%.2f'|format(d.o.qty) }}</td>
+      <td class="num">{{ '%.2f'|format(d.total) }}</td>
       <td>{% if d.factory %}{{ d.factory.code }}{% if d.factory.name %} · {{ d.factory.name }}{% endif %}{% else %}未指定{% endif %}</td>
       <td><span class="badge {{ 'ok' if d.o.status=='picked' else 'warn' }}">{{ '已领料' if d.o.status=='picked' else '待领料' }}</span></td>
       <td>{{ d.o.operator or '-' }}</td>