From 5e340328219e2c2870b6850edde8cfa49dec7f10 Mon Sep 17 00:00:00 2001
From: Raphael Michel <mail@raphaelmichel.de>
Date: Mon, 15 Mar 2021 16:16:49 +0100
Subject: [PATCH] Fix #256 -- Allow exact filtering of voucher tags

---
 src/pretix/control/forms/filter.py                            | 2 ++
 src/pretix/control/templates/pretixcontrol/vouchers/tags.html | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pretix/control/forms/filter.py b/src/pretix/control/forms/filter.py
index a2a0b41f2..9695f3e62 100644
--- a/src/pretix/control/forms/filter.py
+++ b/src/pretix/control/forms/filter.py
@@ -1439,6 +1439,8 @@ class VoucherFilterForm(FilterForm):
             s = fdata.get('tag').strip()
             if s == '<>':
                 qs = qs.filter(Q(tag__isnull=True) | Q(tag=''))
+            elif s[0] == '"' and s[-1] == '"':
+                qs = qs.filter(tag__iexact=s[1:-1])
             else:
                 qs = qs.filter(tag__icontains=s)
 
diff --git a/src/pretix/control/templates/pretixcontrol/vouchers/tags.html b/src/pretix/control/templates/pretixcontrol/vouchers/tags.html
index 007ce8124..a4709212c 100644
--- a/src/pretix/control/templates/pretixcontrol/vouchers/tags.html
+++ b/src/pretix/control/templates/pretixcontrol/vouchers/tags.html
@@ -49,7 +49,7 @@
                         <td>
                             <strong>
                             {% if t.tag %}
-                                <a href="{% url "control:event.vouchers" organizer=request.event.organizer.slug event=request.event.slug %}?tag={{ t.tag|urlencode }}">
+                                <a href="{% url "control:event.vouchers" organizer=request.event.organizer.slug event=request.event.slug %}?tag={{ '"'|add:t.tag|add:'"'|urlencode }}">
                                     {{ t.tag }}
                                 </a>
                             {% else %}