Refactor: split code into several django apps (we call them modules).

dav_base/emails.py

@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+import logging
+from django.apps import apps
+from django.core.exceptions import ImproperlyConfigured
+from django.core.mail import EmailMessage
+from django.template.loader import get_template
+
+app_config = apps.get_containing_app_config(__package__)
+logger = logging.getLogger(__name__)
+
+
+class AbstractMail(object):
+    _subject = u''
+    _template_name = None
+
+    def _get_sender(self):
+        #app_config = apps.get_containing_app_config(__package__)
+        return app_config.settings.email_sender
+
+    def _get_subject(self, subject_fmt=None, **kwargs):
+        if subject_fmt is None:
+            subject_fmt = self._subject
+        #app_config = apps.get_containing_app_config(__package__)
+        if app_config.settings.email_subject_prefix:
+            subject_fmt = u'%s %s' % (app_config.settings.email_subject_prefix, subject_fmt)
+        subject = subject_fmt.format(**kwargs)
+        return subject
+
+    def _get_template(self):
+        if not self._template_name:
+            raise ImproperlyConfigured('%s._template_name ist not set.', self.__class__.__name__)
+        return get_template(self._template_name, using='PLAINTEXT')
+
+    def _get_context_data(self, extra_context=None):
+        #app_config = apps.get_containing_app_config(__package__)
+        context = {
+            'base_url': app_config.settings.email_base_url,
+        }
+        if extra_context:
+            context.update(extra_context)
+        return context
+
+    def _get_body(self, context=None):
+        template = self._get_template()
+        context = self._get_context_data(extra_context=context)
+        return template.render(context)
+
+    def _get_recipients(self):
+        raise NotImplementedError()
+
+    def send(self):
+        subject = self._get_subject()
+        body = self._get_body()
+        sender = self._get_sender()
+        recipients = self._get_recipients()
+
+        email = EmailMessage(subject=subject, body=body, from_email=sender, to=recipients)
+        logger.info(u'Send %s to %s', self.__class__.__name__, recipients)
+        email.send()