Keep some interval between emails.

[wolnelektury.git] / src / messaging / models.py

diff --git a/src/messaging/models.py b/src/messaging/models.py
index da8a01e..c929228 100644 (file)
--- a/src/messaging/models.py
+++ b/src/messaging/models.py
@@ -4,6 +4,7 @@ from django.core.mail import send_mail
 from django.db import models
 from django.template import Template, Context
 from django.urls import reverse
+from django.utils.timezone import now
 from django.utils.translation import ugettext_lazy as _
 from sentry_sdk import capture_exception
 from catalogue.utils import get_random_hash
@@ -42,7 +43,8 @@ class EmailTemplate(models.Model):
     
         contacts = contacts.exclude(emailsent__template=self)
         for contact in contacts:
-            self.send(contact, verbose=verbose, dry_run=dry_run)
+            if not contact.is_annoyed:
+                self.send(contact, verbose=verbose, dry_run=dry_run)
 
     def get_state(self, time=None, test=False):
         for s in states:
@@ -114,6 +116,11 @@ class Contact(models.Model):
             self.key = get_random_hash(self.email)
         super().save(*args, **kwargs)
 
+    @property
+    def is_annoyed(self):
+        cutoff = now() - timedelta(settings.MESSAGING_MIN_DAYS)
+        return self.emailsent_set.filter(timestamp__gte=cutoff).exists()
+
     def get_optout_url(self):
         return reverse('messaging_optout', args=[self.key])
 
@@ -127,7 +134,9 @@ class Contact(models.Model):
         if not created:
             obj.ascend(level, since, expires_at)
 
-    def ascend(self, level, since, expires_at=None):
+    def ascend(self, level, since=None, expires_at=None):
+        if since is None:
+            since = now()
         if level < self.level:
             return
         if level == self.level: