Add utils app

utils/mailer.py

@@ -0,0 +1,67 @@
+import six
+from django.core.mail import send_mail
+from django.core.mail import EmailMultiAlternatives
+from django.template.loader import render_to_string
+
+
+class BaseEmail(object):
+
+    def __init__(self, *args, **kwargs):
+        self.to = kwargs.get('to')
+        self.template_name = kwargs.get('template_name')
+        self.template_path = kwargs.get('template_path')
+        self.subject = kwargs.get('subject')
+        self.context = kwargs.get('context', {})
+        self.template_full_path = '%s%s' % (self.template_path, self.template_name)
+        text_content = render_to_string('%s.txt' % self.template_full_path, self.context)
+        html_content = render_to_string('%s.html' % self.template_full_path, self.context)
+
+        self.email = EmailMultiAlternatives(self.subject, text_content)
+        self.email.attach_alternative(html_content, "text/html")
+        if 'from_address' in kwargs:
+            self.email.from_email = kwargs.get('from_address')
+        else:
+            self.email.from_email = '(ungleich) ungleich Support <info@ungleich.ch>'
+        self.email.to = [kwargs.get('to', 'info@ungleich.ch')]
+
+    def send(self):
+        self.email.send()
+
+
+class BaseMailer(object):
+    def __init__(self):
+        self._slug = None
+        self.no_replay_mail = 'info@ungleich.ch'
+
+        if not hasattr(self, '_to'):
+            self._to = None
+
+    @property
+    def slug(self):
+        return self._slug
+
+    @slug.setter
+    def slug(self, val):
+        assert isinstance(val, six.string_types), "slug is not string: %r" % val
+        self._slug = val
+
+    @property
+    def registration(self):
+        return self.message
+
+    @registration.setter
+    def registration(self, val):
+        msg = "registration is not dict with fields subject,message"
+        assert type(val) is dict, msg
+        assert val.get('subject') and val.get('message'), msg
+        self._message, self._subject, self._from = (
+            val.get('message'), val.get('subject'), val.get('from'))
+        assert isinstance(self.slug, six.string_types), 'slug not set'
+
+    def send_mail(self, to=None):
+        if not to:
+            to = self._to
+        if not self.message:
+            raise NotImplementedError
+        send_mail(self._subject, self._message, self.no_replay_mail, [to])
+