questions/models.py

   1 # -*- coding: utf-8
   2 from datetime import datetime
   3 from django.conf import settings
   4 from django.contrib.sites.models import Site
   5 from django.core.mail import EmailMultiAlternatives
   6 from django.db import models
   7 from django.template import loader, Context
   8 from django.utils.translation import ugettext_lazy as _
   9 from markupfield.fields import MarkupField
  10 from taggit.models import TagBase, GenericTaggedItemBase
  11 from taggit_autosuggest.managers import TaggableManager
  12 from fnpdjango.utils.text.slughifi import slughifi
  13
  14
  15 class Tag(TagBase):
  16     def slugify(self, tag, i=None):
  17         slug = slughifi(tag)
  18         if i is not None:
  19             slug += "_%d" % i
  20         return slug
  21
  22     class Meta:
  23         verbose_name = _("Tag")
  24         verbose_name_plural = _("Tags")
  25
  26
  27 class TagItem(GenericTaggedItemBase):
  28     tag = models.ForeignKey(Tag, related_name="items")
  29
  30
  31 class Question(models.Model):
  32     email = models.EmailField(_('contact e-mail'), null=True, blank=True)
  33     question = models.TextField(_('question'), db_index=True)
  34     created_at = models.DateTimeField(_('created at'), auto_now_add=True)
  35     changed_at = models.DateTimeField(_('changed at'), auto_now=True)
  36     approved = models.BooleanField(_('approved'), default=False)
  37     edited_question = models.TextField(_('edited question'), db_index=True, null=True, blank=True,
  38             help_text=_("Leave empty if question doesn't need editing."))
  39     answer = MarkupField(_('answer'), markup_type='textile_pl', blank=True,
  40             help_text=_('Use <a href="http://textile.thresholdstate.com/">Textile</a> syntax.'))
  41     answered = models.BooleanField(_('answered'), db_index=True, default=False,
  42             help_text=_('Check to send the answer to user.'))
  43     answered_at = models.DateTimeField(_('answered at'), null=True, blank=True, db_index=True)
  44     published = models.BooleanField(_('published'), db_index=True, default=False,
  45         help_text=_('Check to display answered question on site.'))
  46     published_at = models.DateTimeField(_('published at'), null=True, blank=True, db_index=True)
  47
  48     tags = TaggableManager(through=TagItem)
  49
  50     class Meta:
  51         ordering = ['-created_at']
  52         verbose_name = _('question')
  53         verbose_name_plural = _('questions')
  54
  55     def __unicode__(self):
  56         return self.edited_question or self.question
  57
  58     @models.permalink
  59     def get_absolute_url(self):
  60         return ('questions_question', (self.pk,))
  61
  62     def notify_author(self):
  63         if not self.email:
  64             return
  65         site = Site.objects.get_current()
  66         context = Context({
  67                 'question': self,
  68                 'site': site,
  69             })
  70         text_content = loader.get_template('questions/answered_mail.txt'
  71             ).render(context)
  72         html_content = loader.get_template('questions/answered_mail.html'
  73             ).render(context)
  74         msg = EmailMultiAlternatives(
  75             u'Odpowiedź na Twoje pytanie w serwisie %s.' % site.domain,
  76             text_content, settings.SERVER_EMAIL, [self.email])
  77         msg.attach_alternative(html_content, "text/html")
  78         msg.send()
  79
  80     def ack_author(self):
  81         if not self.email:
  82             return
  83         site = Site.objects.get_current()
  84         context = Context({
  85                 'question': self,
  86                 'site': site,
  87             })
  88         text_content = loader.get_template('questions/ack_mail.txt'
  89             ).render(context)
  90         html_content = loader.get_template('questions/ack_mail.html'
  91             ).render(context)
  92         msg = EmailMultiAlternatives(
  93             u'Twoje pytanie zostało zarejestrowane w serwisie %s.' % site.domain,
  94             text_content, settings.SERVER_EMAIL, [self.email])
  95         msg.attach_alternative(html_content, "text/html")
  96         msg.send()
  97
  98     def save(self, *args, **kwargs):
  99         now = datetime.now()
 100         notify = False
 101         if self.answered and not self.answered_at:
 102             notify = True
 103             self.answered_at = now
 104         if self.published and not self.published_at:
 105             self.published_at = now
 106         ret = super(Question, self).save(*args, **kwargs)
 107         if notify:
 108             self.notify_author()
 109         return ret