forces nl locale on generic emails (closes #186)

lab/experiments/models/appointment_models.py

@@ -2,6 +2,7 @@
 
 from cdh.mail.classes import TemplateEmail
 from django.db import models
+from django.utils import translation
 from django.utils.translation import gettext_lazy as _
 
 from main.models import User
@@ -122,10 +123,11 @@ def _inform_leaders(appointment: Appointment) -> None:
 def _send_cancel_confirmation(appointment: Appointment) -> None:
     context = {"appointment": appointment}
 
-    mail = TemplateEmail(
-        html_template="mail/appointment/canceled.html",
-        context=context,
-        to=[appointment.participant.email],
-        subject=_("experiments:mail:appointment:canceled:subject")
-    )
-    mail.send()
+    with translation.override("nl"):
+        mail = TemplateEmail(
+            html_template="mail/appointment/canceled.html",
+            context=context,
+            to=[appointment.participant.email],
+            subject=_("experiments:mail:appointment:canceled:subject")
+        )
+        mail.send()

lab/mailauth/models.py

@@ -1,11 +1,12 @@
-from datetime import datetime, timedelta
+from datetime import datetime
 from secrets import token_urlsafe
 from typing import List, Optional, Tuple
 
 import cdh.core.fields as e_fields
 from cdh.mail.classes import TemplateEmail
 from django.conf import settings
 from django.db import models
+from django.utils import translation
 from django.utils.translation import gettext_lazy as _
 
 from participants.models import Participant
@@ -24,17 +25,18 @@ class MailAuth(models.Model):
     participant = models.ForeignKey("participants.Participant", on_delete=models.CASCADE, null=True)
 
     def send(self, addressee: str):
-        mail = TemplateEmail(
-            html_template="mailauth/link.html",
-            context=dict(
-                addressee=addressee,  # parent name
-                base_url=settings.PARENT_URI,
-                link_token=self.link_token,
-            ),
-            to=[self.email],
-            subject=_("mailauth:send:subject"),
-        )
-        mail.send()
+        with translation.override("nl"):
+            mail = TemplateEmail(
+                html_template="mailauth/link.html",
+                context=dict(
+                    addressee=addressee,  # parent name
+                    base_url=settings.PARENT_URI,
+                    link_token=self.link_token,
+                ),
+                to=[self.email],
+                subject=_("mailauth:send:subject"),
+            )
+            mail.send()
 
     def get_link(self, redirect=None):
         return settings.PARENT_URI + f"auth/{self.link_token}?redirect={redirect}"

lab/signups/models.py

@@ -6,6 +6,7 @@
 from cdh.mail.classes import TemplateEmail
 from django.conf import settings
 from django.db import models
+from django.utils import translation
 from django.utils.translation import gettext_lazy as _
 
 
@@ -59,13 +60,14 @@ class Status(models.TextChoices):
     link_token = models.CharField(max_length=64, default=token_urlsafe, unique=True)
 
     def send_email_validation(self):
-        mail = TemplateEmail(
-            html_template="signups/mail/validation.html",
-            context=dict(
-                base_url=settings.PARENT_URI,
-                link_token=self.link_token,
-            ),
-            to=[self.email],
-            subject="please validate your email",
-        )
-        mail.send()
+        with translation.override("nl"):
+            mail = TemplateEmail(
+                html_template="signups/mail/validation.html",
+                context=dict(
+                    base_url=settings.PARENT_URI,
+                    link_token=self.link_token,
+                ),
+                to=[self.email],
+                subject=_("signups:mail:validation:subject"),
+            )
+            mail.send()

lab/survey_admin/models.py

@@ -2,6 +2,7 @@
 
 from cdh.mail.classes import TemplateEmail
 from django.db import models
+from django.utils import translation
 
 from mailauth.models import create_mail_auth
 from participants.models import Participant
@@ -31,13 +32,14 @@ def get_link(self):
 
     def send(self):
         context = dict(link=self.get_link())
-        mail = TemplateEmail(
-            html_template="survey_admin/mail/invite.html",
-            context=context,
-            to=[self.participant.email],
-            subject="invitation to fill survey",
-        )
-        mail.send()
+        with translation.override("nl"):
+            mail = TemplateEmail(
+                html_template="survey_admin/mail/invite.html",
+                context=context,
+                to=[self.participant.email],
+                subject="invitation to fill survey",
+            )
+            mail.send()
 
 
 class SurveyResponse(models.Model):