Format amount in GiroCode/EPC-QR with dot instead of locale

src/pretix/plugins/banktransfer/__init__.py

@@ -19,7 +19,7 @@ class BankTransferApp(AppConfig):
     def ready(self):
         from . import signals  # NOQA
         from . import tasks  # NOQA
-        from .templatetags import commadecimal  # NOQA
+        from .templatetags import commadecimal, dotdecimal  # NOQA
 
     @cached_property
     def compatibility_warnings(self):

src/pretix/plugins/banktransfer/templates/pretixplugins/banktransfer/pending.html

@@ -1,6 +1,7 @@
 {% load i18n %}
 {% load l10n %}
 {% load commadecimal %}
+{% load dotdecimal %}
 {% load ibanformat %}
 {% load money %}
 
@@ -44,7 +45,7 @@ SCT
 {{ settings.bank_details_sepa_bic }}
 {{ settings.bank_details_sepa_name }}
 {{ settings.bank_details_sepa_iban }}
-{{ event.currency }}{{ amount|floatformat:2 }}
+{{ event.currency }}{{ amount|dotdecimal }}
 
 
 {{ code }}

src/pretix/plugins/banktransfer/templatetags/dotdecimal.py

@@ -0,0 +1,8 @@
+from django import template
+
+register = template.Library()
+
+
+@register.filter
+def dotdecimal(value):
+    return str(value).replace(",", ".")