feat: 俱乐部订单单向互通抢单（集团配置 + 接单池/抢单校验）

Co-authored-by: Cursor <cursoragent@cursor.com>

jituan/services/order_grab_share.py

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+"""俱乐部订单单向互通抢单：grabber 可看/抢 order 俱乐部的待接单。"""
+from django.db.models import Q
+
+from jituan.constants import CLUB_ID_DEFAULT
+from jituan.models import Club, ClubOrderGrabLink
+
+
+def normalize_club_id(club_id):
+    return (club_id or '').strip() or CLUB_ID_DEFAULT
+
+
+def order_club_ids_for_grabber(grabber_club_id):
+    """
+    打手所属俱乐部可见的订单 ClubID 集合（含本店 + 已配置可抢的对方店）。
+    """
+    gc = normalize_club_id(grabber_club_id)
+    ids = {gc}
+    for oc in ClubOrderGrabLink.query.filter(
+        grabber_club_id=gc,
+    ).values_list('order_club_id', flat=True):
+        oc = (oc or '').strip()
+        if oc:
+            ids.add(oc)
+    return ids
+
+
+def order_club_q_for_grabber(grabber_club_id):
+    """用于 Order 查询的 Q：本店 + 互通店；本店含默认俱乐部时兼容空 ClubID 旧单。"""
+    allowed = order_club_ids_for_grabber(grabber_club_id)
+    q = Q(ClubID__in=list(allowed))
+    if CLUB_ID_DEFAULT in allowed:
+        q |= Q(ClubID__isnull=True) | Q(ClubID='')
+    return q
+
+
+def can_grabber_take_order_club(grabber_club_id, order_club_id):
+    gc = normalize_club_id(grabber_club_id)
+    oc = normalize_club_id(order_club_id)
+    if gc == oc:
+        return True
+    return ClubOrderGrabLink.query.filter(
+        grabber_club_id=gc, order_club_id=oc,
+    ).exists()
+
+
+def list_grab_links():
+    name_map = {c.club_id: c.name for c in Club.query.filter(status=1)}
+    rows = list(ClubOrderGrabLink.query.order_by('grabber_club_id', 'order_club_id'))
+    return [
+        {
+            'id': r.id,
+            'grabber_club_id': r.grabber_club_id,
+            'grabber_club_name': name_map.get(r.grabber_club_id, r.grabber_club_id),
+            'order_club_id': r.order_club_id,
+            'order_club_name': name_map.get(r.order_club_id, r.order_club_id),
+            'create_time': r.CreateTime.strftime('%Y-%m-%d %H:%M:%S') if r.CreateTime else '',
+        }
+        for r in rows
+    ]
+
+
+def add_grab_link(grabber_club_id, order_club_id):
+    gc = (grabber_club_id or '').strip()
+    oc = (order_club_id or '').strip()
+    if not gc or not oc:
+        return None, '请选择抢单方与被抢订单俱乐部'
+    if gc == oc:
+        return None, '不能配置本店抢本店（本店订单默认可见）'
+    if not Club.query.filter(club_id=gc, status=1).exists():
+        return None, f'抢单方俱乐部不存在: {gc}'
+    if not Club.query.filter(club_id=oc, status=1).exists():
+        return None, f'订单方俱乐部不存在: {oc}'
+    if ClubOrderGrabLink.query.filter(grabber_club_id=gc, order_club_id=oc).exists():
+        return None, '该互通规则已存在'
+    row = ClubOrderGrabLink.query.create(
+        grabber_club_id=gc,
+        order_club_id=oc,
+    )
+    return {'id': row.id, 'grabber_club_id': gc, 'order_club_id': oc}, None
+
+
+def delete_grab_link(link_id):
+    try:
+        link_id = int(link_id)
+    except (TypeError, ValueError):
+        return False, '无效的规则 id'
+    deleted, _ = ClubOrderGrabLink.objects.filter(id=link_id).delete()
+    if not deleted:
+        return False, '规则不存在'
+    return True, None