misc: add get_admin_url to mail templates (#51685)

wcs/mail_templates.py

@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from quixote import get_publisher
+
 from wcs.qommon import get_logger, misc
 from wcs.qommon.xml_storage import XmlStorableObject
 
@@ -43,6 +45,10 @@ class MailTemplate(XmlStorableObject):
         XmlStorableObject.__init__(self)
         self.name = name
 
+    def get_admin_url(self):
+        base_url = get_publisher().get_backoffice_url()
+        return '%s/workflows/mail-templates/%s/' % (base_url, self.id)
+
     def store(self):
         if self.slug is None:
             # set slug if it's not yet there

wcs/templates/wcs/backoffice/mail-template.html

@@ -24,7 +24,7 @@
  <h3>{% trans "Usage in workflows" %}</h3>
  <ul class="objects-list single-links">
 {% endif %}
-  <li><a href="../../{{ workflow.id }}/">{{ workflow.name }}</a></li>
+  <li><a href="{{ workflow.get_admin_url }}">{{ workflow.name }}</a></li>
 {% if forloop.last %}
  </ul>
 </div>