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 TagCategory(models.Model):
  16     name = models.CharField(verbose_name=_('Name'), unique = True, max_length = 100)
  17     slug = models.SlugField(verbose_name=_('Slug'), unique = True, max_length = 100)
  18
  19     class Meta:
  20         verbose_name = _("Tag Category")
  21         verbose_name_plural = _("Tag Categries")
  22
  23     def __unicode__(self):
  24         return self.name
  25
  26
  27 class Tag(TagBase):
  28     def slugify(self, tag, i=None):
  29         slug = slughifi(tag)
  30         if i is not None:
  31             slug += "_%d" % i
  32         return slug
  33
  34     category = models.ForeignKey(TagCategory, blank = True, null = True, on_delete = models.SET_NULL)
  35
  36     class Meta:
  37         verbose_name = _("Tag")
  38         verbose_name_plural = _("Tags")
  39
  40
  41 class TagItem(GenericTaggedItemBase):
  42     tag = models.ForeignKey(Tag, related_name="items")
  43
  44
  45 class Question(models.Model):
  46     email = models.EmailField(_('contact e-mail'), null=True, blank=True)
  47     question = models.TextField(_('question'), db_index=True)
  48     created_at = models.DateTimeField(_('created at'), auto_now_add=True)
  49     changed_at = models.DateTimeField(_('changed at'), auto_now=True)
  50     approved = models.BooleanField(_('approved'), default=False)
  51     edited_question = models.TextField(_('edited question'), db_index=True, null=True, blank=True,
  52             help_text=_("Leave empty if question doesn't need editing."))
  53     answer = MarkupField(_('answer'), markup_type='textile_pl', blank=True,
  54             help_text=_('Use <a href="http://textile.thresholdstate.com/">Textile</a> syntax.'))
  55     answered = models.BooleanField(_('answered'), db_index=True, default=False,
  56             help_text=_('Check to send the answer to user.'))
  57     answered_at = models.DateTimeField(_('answered at'), null=True, blank=True, db_index=True)
  58     published = models.BooleanField(_('published'), db_index=True, default=False,
  59         help_text=_('Check to display answered question on site.'))
  60     published_at = models.DateTimeField(_('published at'), null=True, blank=True, db_index=True)
  61
  62     tags = TaggableManager(through=TagItem, blank=True)
  63
  64     class Meta:
  65         ordering = ['-created_at']
  66         verbose_name = _('question')
  67         verbose_name_plural = _('questions')
  68
  69     def __unicode__(self):
  70         return self.edited_question or self.question
  71
  72     @models.permalink
  73     def get_absolute_url(self):
  74         return ('questions_question', (self.pk,))
  75
  76     def notify_author(self):
  77         if not self.email:
  78             return
  79         site = Site.objects.get_current()
  80         context = Context({
  81                 'question': self,
  82                 'site': site,
  83             })
  84         text_content = loader.get_template('questions/answered_mail.txt'
  85             ).render(context)
  86         html_content = loader.get_template('questions/answered_mail.html'
  87             ).render(context)
  88         msg = EmailMultiAlternatives(
  89             u'Odpowiedź na Twoje pytanie w serwisie %s.' % site.domain,
  90             text_content, settings.SERVER_EMAIL, [self.email])
  91         msg.attach_alternative(html_content, "text/html")
  92         msg.send()
  93
  94     def ack_author(self):
  95         if not self.email:
  96             return
  97         site = Site.objects.get_current()
  98         context = Context({
  99                 'question': self,
 100                 'site': site,
 101             })
 102         text_content = loader.get_template('questions/ack_mail.txt'
 103             ).render(context)
 104         html_content = loader.get_template('questions/ack_mail.html'
 105             ).render(context)
 106         msg = EmailMultiAlternatives(
 107             u'Twoje pytanie zostało zarejestrowane w serwisie %s.' % site.domain,
 108             text_content, settings.SERVER_EMAIL, [self.email])
 109         msg.attach_alternative(html_content, "text/html")
 110         msg.send()
 111
 112     def save(self, *args, **kwargs):
 113         now = datetime.now()
 114         notify = False
 115         if self.answered and not self.answered_at:
 116             notify = True
 117             self.answered_at = now
 118         if self.published and not self.published_at:
 119             self.published_at = now
 120         ret = super(Question, self).save(*args, **kwargs)
 121         if notify:
 122             self.notify_author()
 123         return ret