questions/models.py

   1 # -*- coding: utf-8
   2 from datetime import datetime
   3 from django.contrib.sites.models import Site
   4 from django.core.mail import EmailMultiAlternatives
   5 from django.db import models
   6 from django.template import loader, Context
   7 from django.utils.translation import ugettext_lazy as _
   8 from markupfield.fields import MarkupField
   9
  10 class Question(models.Model):
  11     email = models.EmailField(_('contact e-mail'), null=True, blank=True)
  12     question = models.TextField(_('question'), db_index=True)
  13     created_at = models.DateTimeField(_('created at'), auto_now_add=True)
  14     changed_at = models.DateTimeField(_('changed at'), auto_now=True)
  15     approved = models.BooleanField(_('approved'), default=False)
  16     edited_question = models.TextField(_('edited question'), db_index=True, null=True, blank=True,
  17             help_text=_("Leave empty if question doesn't need editing."))
  18     answer = MarkupField(_('answer'), markup_type='textile_pl', blank=True,
  19             help_text=_('Use <a href="http://textile.thresholdstate.com/">Textile</a> syntax.'))
  20     answered = models.BooleanField(_('answered'), db_index=True, default=False,
  21             help_text=_('Check to send the answer to user.'))
  22     answered_at = models.DateTimeField(_('answered at'), null=True, blank=True, db_index=True)
  23     published = models.BooleanField(_('published'), db_index=True, default=False,
  24         help_text=_('Check to display answered question on site.'))
  25     published_at = models.DateTimeField(_('published at'), null=True, blank=True, db_index=True)
  26
  27     class Meta:
  28         ordering = ['-created_at']
  29         verbose_name = _('question')
  30         verbose_name_plural = _('questions')
  31
  32     def __unicode__(self):
  33         return self.edited_question or self.question
  34
  35     @models.permalink
  36     def get_absolute_url(self):
  37         return ('questions_question', (self.pk,))
  38
  39     def notify_author(self):
  40         if not self.email:
  41             return
  42         site = Site.objects.get_current()
  43         context = Context({
  44                 'question': self,
  45                 'site': site,
  46             })
  47         text_content = loader.get_template('questions/answered_mail.txt'
  48             ).render(context)
  49         html_content = loader.get_template('questions/answered_mail.html'
  50             ).render(context)
  51         msg = EmailMultiAlternatives(
  52             u'Odpowiedź na Twoje pytanie w serwisie %s.' % site.domain,
  53             text_content, settings.SERVER_EMAIL, [self.email])
  54         msg.attach_alternative(html_content, "text/html")
  55         msg.send()
  56
  57     def save(self, *args, **kwargs):
  58         now = datetime.now()
  59         if self.answered and not self.answered_at:
  60             self.notify_author()
  61             self.answered_at = now
  62         if self.published and not self.published_at:
  63             self.published_at = now
  64         super(Question, self).save(*args, **kwargs)