Format due dates in email templates

taiga/front/templatetags/functions.py

@@ -16,6 +16,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+from datetime import datetime
 
 from django_jinja import library
 from django_sites import get_by_id as get_site_by_id
@@ -31,3 +32,9 @@ def resolve(type, *args):
     scheme = site.scheme and "{0}:".format(site.scheme) or ""
     url = urls[type].format(*args)
     return url_tmpl.format(scheme=scheme, domain=site.domain, url=url)
+
+
+@library.filter(name="date")
+def format_date(value, *args):
+    date_value = datetime.strptime(value, '%Y-%m-%d')
+    return date_value.strftime('%d %b %Y')

taiga/projects/history/templates/emails/includes/fields_diff-html.jinja

@@ -149,6 +149,33 @@
                     {% endif %}
                 </td>
             </tr>
+    {# ASSIGNED TO #}
+        {% elif field_name == "due_date" %}
+            <tr>
+                <td valign="middle" rowspan="2" class="update-row-name">
+                    <h3>{{ verbose_name(obj_class, field_name) }}</h3>
+                </td>
+                <td valign="top" class="update-row-from">
+                    {% if values.0 != None and values.0 != "" %}
+                        <span>{{ _("from") }}</span><br>
+                        <strong>{{ values.0|date }}</strong>
+                    {% else %}
+                        <span>{{ _("from") }}</span><br>
+                        <strong>{{ _("Not set") }}</strong>
+                    {% endif %}
+                </td>
+            </tr>
+            <tr>
+                <td valign="top">
+                    {% if values.1 != None and values.1 != "" %}
+                        <span>{{ _("to") }}</span><br>
+                        <strong>{{ values.1|date }}</strong>
+                    {% else %}
+                        <span>{{ _("to") }}</span><br>
+                        <strong>{{ _("Not set") }}</strong>
+                    {% endif %}
+                </td>
+            </tr>
     {# * #}
         {% else %}
             <tr>