fix #323

Author: =

auctions/models.py

@@ -760,6 +760,32 @@ def find_user(self, name="", email="", exclude_pk=None):
                 return name_search
         return None
 
+    @property
+    def estimate_end(self):
+        try:
+            if self.is_online:
+                return None
+            expected_sell_percent = 95
+            lots_to_use_for_estimate = 10
+            percent_complete = self.total_unsold_lots / self.total_lots
+            if percent_complete > expected_sell_percent:
+                return None
+            lots = self.lots_qs.exclude(date_end__isnull=True).order_by("-date_end")[:lots_to_use_for_estimate]
+            if lots.count() < lots_to_use_for_estimate:
+                return None
+            first_lot = lots[0]
+            last_lot = lots[lots_to_use_for_estimate - 1]
+            time_diff = first_lot.date_end - last_lot.date_end
+            elapsed_seconds = time_diff.total_seconds()
+            rate = elapsed_seconds / lots_to_use_for_estimate
+            mintues_to_end = int(self.total_unsold_lots * rate / 60)
+            if mintues_to_end < 15:
+                return None
+            return mintues_to_end
+        except Exception as e:
+            logger.error(e)
+            return None
+
     @property
     def location_qs(self):
         """All locations associated with this auction"""

auctions/templates/auctions/dynamic_set_lot_winner.html

@@ -99,6 +99,20 @@
       } else {
         $("#sell_to_online_high_bidder").addClass('d-none');
       }
+      if (response.auction_minutes_to_end) {
+        var result = response.unsold_lot_count + " unsold lots.  Based on the rate of the last 10 lots sold, this auction will end in "
+        var hours = Math.floor(response.auction_minutes_to_end / 60);
+        var remainingMinutes = response.auction_minutes_to_end % 60;
+        if (hours > 0) {
+            result += hours + " hour" + (hours > 1 ? "s" : "") + (remainingMinutes > 0 ? " and " + remainingMinutes + " minute" + (remainingMinutes > 1 ? "s" : "") : "");
+        } else {
+            result += remainingMinutes + " minute" + (remainingMinutes > 1 ? "s" : "");
+        }
+        $("#auction_minutes_to_end").removeClass('d-none');
+        $("#auction_minutes_to_end").text(result);
+      } else {
+        $("#auction_minutes_to_end").addClass('d-none');
+      }
 
   }
 
@@ -243,4 +257,7 @@
 </form>
 </div>
 <div id="result"></div>
+<div class="d-flex justify-content-center">
+    <small><span class="text-muted" id="auction_minutes_to_end"></span></small>
+</div>
 {% endblock %}

auctions/views.py

@@ -1326,7 +1326,7 @@ def post(self, request, *args, **kwargs):
 class AuctionTOSValidation(AuctionViewMixin, APIPostView):
     """For real time validation on the auctiontos admin create form
     See views.AuctionTOSAdmin for the corresponding js and view
-    qqq"""
+    """
 
     def post(self, request, *args, **kwargs):
         pk = request.POST.get("pk", None)
@@ -2534,6 +2534,7 @@ def post(self, request, *args, **kwargs):
             "last_sold_lot_number": None,
             "success_message": None,
             "online_high_bidder_message": None,
+            "auction_minutes_to_end": None,
         }
         lot, lot_error = self.validate_lot(lot, action)
         if lot and not lot_error and action == "to_online_high_bidder":
@@ -2603,6 +2604,9 @@ def post(self, request, *args, **kwargs):
         result["lot"] = lot_error or lot
         result["price"] = price_error or price
         result["winner"] = winner_error or winner
+        if not lot_error and not price_error and not winner_error:
+            result["auction_minutes_to_end"] = self.auction.estimate_end
+            result["unsold_lot_count"] = self.auction.total_unsold_lots
         return JsonResponse(result)
 
 
@@ -4080,7 +4084,7 @@ def get_context_data(self, **kwargs):
         else:
             extra_script += "var pk=null;"
         extra_script += f"""var validation_url = '{reverse("auctiontos_validation", kwargs={"slug": self.auction.slug})}';
-                            var csrf_token = '{get_token(self.request)}';'qqq'"""
+                            var csrf_token = '{get_token(self.request)}';"""
         extra_script += """
 
     function setFieldInvalid(fieldId, message, is_invalid) {