From f3dbbce39ce2d4ca93489ce3453e5037a2b4f5cb Mon Sep 17 00:00:00 2001
From: Raphael Michel <michel@rami.io>
Date: Mon, 30 Mar 2026 17:36:36 +0200
Subject: [PATCH] Order change form: Allow to add multiple identical positions
 (Z#23227479)

---
 src/pretix/control/forms/orders.py                  |  8 ++++++++
 .../templates/pretixcontrol/order/change.html       |  2 ++
 src/pretix/control/views/orders.py                  | 13 +++++++------
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/pretix/control/forms/orders.py b/src/pretix/control/forms/orders.py
index 4fc22a5903..4df41eaf44 100644
--- a/src/pretix/control/forms/orders.py
+++ b/src/pretix/control/forms/orders.py
@@ -331,6 +331,10 @@ class OtherOperationsForm(forms.Form):
 
 
 class OrderPositionAddForm(forms.Form):
+    count = forms.IntegerField(
+        label=_('Number of products to add'),
+        initial=1,
+    )
     itemvar = forms.ChoiceField(
         label=_('Product')
     )
@@ -432,6 +436,10 @@ class OrderPositionAddForm(forms.Form):
             d['used_membership'] = [m for m in self.memberships if str(m.pk) == d['used_membership']][0]
         else:
             d['used_membership'] = None
+        if d.get("count", 1) and d.get("seat"):
+            raise ValidationError({
+                "seat": _("You can not choose a seat when adding multiple products at once.")
+            })
         return d
 
 
diff --git a/src/pretix/control/templates/pretixcontrol/order/change.html b/src/pretix/control/templates/pretixcontrol/order/change.html
index e77c792e28..a4dd0c83a7 100644
--- a/src/pretix/control/templates/pretixcontrol/order/change.html
+++ b/src/pretix/control/templates/pretixcontrol/order/change.html
@@ -329,6 +329,7 @@
                                         {{ add_form.custom_error }}
                                     </div>
                                 {% endif %}
+                                {% bootstrap_field add_form.count layout="control" %}
                                 {% bootstrap_field add_form.itemvar layout="control" %}
                                 {% bootstrap_field add_form.price addon_after=request.event.currency layout="control" %}
                                 {% if add_form.addon_to %}
@@ -364,6 +365,7 @@
                         </div>
                         <div class="panel-body">
                             <div class="form-horizontal">
+                                {% bootstrap_field add_position_formset.empty_form.count layout="control" %}
                                 {% bootstrap_field add_position_formset.empty_form.itemvar layout="control" %}
                                 {% bootstrap_field add_position_formset.empty_form.price addon_after=request.event.currency layout="control" %}
                                 {% if add_position_formset.empty_form.addon_to %}
diff --git a/src/pretix/control/views/orders.py b/src/pretix/control/views/orders.py
index ea6ddfe349..5d60911009 100644
--- a/src/pretix/control/views/orders.py
+++ b/src/pretix/control/views/orders.py
@@ -2059,12 +2059,13 @@ class OrderChange(OrderView):
                 else:
                     variation = None
                 try:
-                    ocm.add_position(item, variation,
-                                     f.cleaned_data['price'],
-                                     f.cleaned_data.get('addon_to'),
-                                     f.cleaned_data.get('subevent'),
-                                     f.cleaned_data.get('seat'),
-                                     f.cleaned_data.get('used_membership'))
+                    for i in range(f.cleaned_data.get("count", 1)):
+                        ocm.add_position(item, variation,
+                                         f.cleaned_data['price'],
+                                         f.cleaned_data.get('addon_to'),
+                                         f.cleaned_data.get('subevent'),
+                                         f.cleaned_data.get('seat'),
+                                         f.cleaned_data.get('used_membership'))
                 except OrderError as e:
                     f.custom_error = str(e)
                     return False