diff options
Diffstat (limited to 'forum/models/question.py')
| -rwxr-xr-x | forum/models/question.py | 670 |
1 files changed, 335 insertions, 335 deletions
diff --git a/forum/models/question.py b/forum/models/question.py index 27d6e9d9..37924a5a 100755 --- a/forum/models/question.py +++ b/forum/models/question.py @@ -1,335 +1,335 @@ -from base import *
-from tag import Tag
-
-class QuestionManager(models.Manager):
- def create_new(self, title=None,author=None,added_at=None, wiki=False,tagnames=None,summary=None, text=None):
- question = Question(
- title = title,
- author = author,
- added_at = added_at,
- last_activity_at = added_at,
- last_activity_by = author,
- wiki = wiki,
- tagnames = tagnames,
- html = text,
- summary = summary
- )
- if question.wiki:
- question.last_edited_by = question.author
- question.last_edited_at = added_at
- question.wikified_at = added_at
-
- question.save()
-
- # create the first revision
- QuestionRevision.objects.create(
- question = question,
- revision = 1,
- title = question.title,
- author = author,
- revised_at = added_at,
- tagnames = question.tagnames,
- summary = CONST['default_version'],
- text = text
- )
- return question
-
- def update_tags(self, question, tagnames, user):
- """
- Updates Tag associations for a question to match the given
- tagname string.
-
- Returns ``True`` if tag usage counts were updated as a result,
- ``False`` otherwise.
- """
-
- current_tags = list(question.tags.all())
- current_tagnames = set(t.name for t in current_tags)
- updated_tagnames = set(t for t in tagnames.split(' ') if t)
- modified_tags = []
-
- removed_tags = [t for t in current_tags
- if t.name not in updated_tagnames]
- if removed_tags:
- modified_tags.extend(removed_tags)
- question.tags.remove(*removed_tags)
-
- added_tagnames = updated_tagnames - current_tagnames
- if added_tagnames:
- added_tags = Tag.objects.get_or_create_multiple(added_tagnames,
- user)
- modified_tags.extend(added_tags)
- question.tags.add(*added_tags)
-
- if modified_tags:
- Tag.objects.update_use_counts(modified_tags)
- return True
-
- return False
-
- def update_answer_count(self, question):
- """
- Executes an UPDATE query to update denormalised data with the
- number of answers the given question has.
- """
-
- # for some reasons, this Answer class failed to be imported,
- # although we have imported all classes from models on top.
- from answer import Answer
- self.filter(id=question.id).update(
- answer_count=Answer.objects.get_answers_from_question(question).filter(deleted=False).count())
-
- def update_view_count(self, question):
- """
- update counter+1 when user browse question page
- """
- self.filter(id=question.id).update(view_count = question.view_count + 1)
-
- def update_favorite_count(self, question):
- """
- update favourite_count for given question
- """
- self.filter(id=question.id).update(favourite_count = FavoriteQuestion.objects.filter(question=question).count())
-
- def get_similar_questions(self, question):
- """
- Get 10 similar questions for given one.
- This will search the same tag list for give question(by exactly same string) first.
- Questions with the individual tags will be added to list if above questions are not full.
- """
- #print datetime.datetime.now()
- questions = list(self.filter(tagnames = question.tagnames, deleted=False).all())
-
- tags_list = question.tags.all()
- for tag in tags_list:
- extend_questions = self.filter(tags__id = tag.id, deleted=False)[:50]
- for item in extend_questions:
- if item not in questions and len(questions) < 10:
- questions.append(item)
-
- #print datetime.datetime.now()
- return questions
-
-class Question(Content, DeletableContent):
- title = models.CharField(max_length=300)
- tags = models.ManyToManyField('Tag', related_name='questions')
- answer_accepted = models.BooleanField(default=False)
- closed = models.BooleanField(default=False)
- closed_by = models.ForeignKey(User, null=True, blank=True, related_name='closed_questions')
- closed_at = models.DateTimeField(null=True, blank=True)
- close_reason = models.SmallIntegerField(choices=CLOSE_REASONS, null=True, blank=True)
- followed_by = models.ManyToManyField(User, related_name='followed_questions')
-
- # Denormalised data
- answer_count = models.PositiveIntegerField(default=0)
- view_count = models.PositiveIntegerField(default=0)
- favourite_count = models.PositiveIntegerField(default=0)
- last_activity_at = models.DateTimeField(default=datetime.datetime.now)
- last_activity_by = models.ForeignKey(User, related_name='last_active_in_questions')
- tagnames = models.CharField(max_length=125)
- summary = models.CharField(max_length=180)
-
- favorited_by = models.ManyToManyField(User, through='FavoriteQuestion', related_name='favorite_questions')
-
- objects = QuestionManager()
-
- class Meta(Content.Meta):
- db_table = u'question'
-
- def delete(self):
- super(Question, self).delete()
- try:
- ping_google()
- except Exception:
- logging.debug('problem pinging google did you register you sitemap with google?')
-
- def save(self, **kwargs):
- """
- Overridden to manually manage addition of tags when the object
- is first saved.
-
- This is required as we're using ``tagnames`` as the sole means of
- adding and editing tags.
- """
- initial_addition = (self.id is None)
-
- super(Question, self).save(**kwargs)
-
- if initial_addition:
- tags = Tag.objects.get_or_create_multiple(self.tagname_list(),
- self.author)
- self.tags.add(*tags)
- Tag.objects.update_use_counts(tags)
-
- def tagname_list(self):
- """Creates a list of Tag names from the ``tagnames`` attribute."""
- return [name for name in self.tagnames.split(u' ')]
-
- def tagname_meta_generator(self):
- return u','.join([unicode(tag) for tag in self.tagname_list()])
-
- def get_absolute_url(self):
- return '%s%s' % (reverse('question', args=[self.id]), django_urlquote(slugify(self.title)))
-
- def has_favorite_by_user(self, user):
- if not user.is_authenticated():
- return False
-
- return FavoriteQuestion.objects.filter(question=self, user=user).count() > 0
-
- def get_answer_count_by_user(self, user_id):
- from answer import Answer
- query_set = Answer.objects.filter(author__id=user_id)
- return query_set.filter(question=self).count()
-
- def get_question_title(self):
- if self.closed:
- attr = CONST['closed']
- elif self.deleted:
- attr = CONST['deleted']
- else:
- attr = None
- if attr is not None:
- return u'%s %s' % (self.title, attr)
- else:
- return self.title
-
- def get_revision_url(self):
- return reverse('question_revisions', args=[self.id])
-
- def get_latest_revision(self):
- return self.revisions.all()[0]
-
- def get_last_update_info(self):
- when, who = self.post_get_last_update_info()
-
- answers = self.answers.all()
- if len(answers) > 0:
- for a in answers:
- a_when, a_who = a.post_get_last_update_info()
- if a_when > when:
- when = a_when
- who = a_who
-
- return when, who
-
- def get_update_summary(self,last_reported_at=None,recipient_email=''):
- edited = False
- if self.last_edited_at and self.last_edited_at > last_reported_at:
- if self.last_edited_by.email != recipient_email:
- edited = True
- comments = []
- for comment in self.comments.all():
- if comment.added_at > last_reported_at and comment.user.email != recipient_email:
- comments.append(comment)
- new_answers = []
- answer_comments = []
- modified_answers = []
- commented_answers = []
- import sets
- commented_answers = sets.Set([])
- for answer in self.answers.all():
- if (answer.added_at > last_reported_at and answer.author.email != recipient_email):
- new_answers.append(answer)
- if (answer.last_edited_at
- and answer.last_edited_at > last_reported_at
- and answer.last_edited_by.email != recipient_email):
- modified_answers.append(answer)
- for comment in answer.comments.all():
- if comment.added_at > last_reported_at and comment.user.email != recipient_email:
- commented_answers.add(answer)
- answer_comments.append(comment)
-
- #create the report
- if edited or new_answers or modified_answers or answer_comments:
- out = []
- if edited:
- out.append(_('%(author)s modified the question') % {'author':self.last_edited_by.username})
- if new_answers:
- names = sets.Set(map(lambda x: x.author.username,new_answers))
- people = ', '.join(names)
- out.append(_('%(people)s posted %(new_answer_count)s new answers') \
- % {'new_answer_count':len(new_answers),'people':people})
- if comments:
- names = sets.Set(map(lambda x: x.user.username,comments))
- people = ', '.join(names)
- out.append(_('%(people)s commented the question') % {'people':people})
- if answer_comments:
- names = sets.Set(map(lambda x: x.user.username,answer_comments))
- people = ', '.join(names)
- if len(commented_answers) > 1:
- out.append(_('%(people)s commented answers') % {'people':people})
- else:
- out.append(_('%(people)s commented an answer') % {'people':people})
- url = settings.APP_URL + self.get_absolute_url()
- retval = '<a href="%s">%s</a>:<br>\n' % (url,self.title)
- out = map(lambda x: '<li>' + x + '</li>',out)
- retval += '<ul>' + '\n'.join(out) + '</ul><br>\n'
- return retval
- else:
- return None
-
- def __unicode__(self):
- return self.title
-
-
-class QuestionView(models.Model):
- question = models.ForeignKey(Question, related_name='viewed')
- who = models.ForeignKey(User, related_name='question_views')
- when = models.DateTimeField()
-
- class Meta:
- app_label = 'forum'
-
-class FavoriteQuestion(models.Model):
- """A favorite Question of a User."""
- question = models.ForeignKey(Question)
- user = models.ForeignKey(User, related_name='user_favorite_questions')
- added_at = models.DateTimeField(default=datetime.datetime.now)
-
- class Meta:
- app_label = 'forum'
- db_table = u'favorite_question'
- def __unicode__(self):
- return '[%s] favorited at %s' %(self.user, self.added_at)
-
-class QuestionRevision(ContentRevision):
- """A revision of a Question."""
- question = models.ForeignKey(Question, related_name='revisions')
- title = models.CharField(max_length=300)
- tagnames = models.CharField(max_length=125)
-
- class Meta(ContentRevision.Meta):
- db_table = u'question_revision'
- ordering = ('-revision',)
-
- def get_question_title(self):
- return self.question.title
-
- def get_absolute_url(self):
- #print 'in QuestionRevision.get_absolute_url()'
- return reverse('question_revisions', args=[self.question.id])
-
- def save(self, **kwargs):
- """Looks up the next available revision number."""
- if not self.revision:
- self.revision = QuestionRevision.objects.filter(
- question=self.question).values_list('revision',
- flat=True)[0] + 1
- super(QuestionRevision, self).save(**kwargs)
-
- def __unicode__(self):
- return u'revision %s of %s' % (self.revision, self.title)
-
-class AnonymousQuestion(AnonymousContent):
- title = models.CharField(max_length=300)
- tagnames = models.CharField(max_length=125)
-
- def publish(self,user):
- added_at = datetime.datetime.now()
- QuestionManager.create_new(title=self.title, author=user, added_at=added_at,
- wiki=self.wiki, tagnames=self.tagnames,
- summary=self.summary, text=self.text)
- self.delete()
-
-from answer import Answer, AnswerManager
+from base import * +from tag import Tag + +class QuestionManager(models.Manager): + def create_new(self, title=None,author=None,added_at=None, wiki=False,tagnames=None,summary=None, text=None): + question = Question( + title = title, + author = author, + added_at = added_at, + last_activity_at = added_at, + last_activity_by = author, + wiki = wiki, + tagnames = tagnames, + html = text, + summary = summary + ) + if question.wiki: + question.last_edited_by = question.author + question.last_edited_at = added_at + question.wikified_at = added_at + + question.save() + + # create the first revision + QuestionRevision.objects.create( + question = question, + revision = 1, + title = question.title, + author = author, + revised_at = added_at, + tagnames = question.tagnames, + summary = CONST['default_version'], + text = text + ) + return question + + def update_tags(self, question, tagnames, user): + """ + Updates Tag associations for a question to match the given + tagname string. + + Returns ``True`` if tag usage counts were updated as a result, + ``False`` otherwise. + """ + + current_tags = list(question.tags.all()) + current_tagnames = set(t.name for t in current_tags) + updated_tagnames = set(t for t in tagnames.split(' ') if t) + modified_tags = [] + + removed_tags = [t for t in current_tags + if t.name not in updated_tagnames] + if removed_tags: + modified_tags.extend(removed_tags) + question.tags.remove(*removed_tags) + + added_tagnames = updated_tagnames - current_tagnames + if added_tagnames: + added_tags = Tag.objects.get_or_create_multiple(added_tagnames, + user) + modified_tags.extend(added_tags) + question.tags.add(*added_tags) + + if modified_tags: + Tag.objects.update_use_counts(modified_tags) + return True + + return False + + def update_answer_count(self, question): + """ + Executes an UPDATE query to update denormalised data with the + number of answers the given question has. + """ + + # for some reasons, this Answer class failed to be imported, + # although we have imported all classes from models on top. + from answer import Answer + self.filter(id=question.id).update( + answer_count=Answer.objects.get_answers_from_question(question).filter(deleted=False).count()) + + def update_view_count(self, question): + """ + update counter+1 when user browse question page + """ + self.filter(id=question.id).update(view_count = question.view_count + 1) + + def update_favorite_count(self, question): + """ + update favourite_count for given question + """ + self.filter(id=question.id).update(favourite_count = FavoriteQuestion.objects.filter(question=question).count()) + + def get_similar_questions(self, question): + """ + Get 10 similar questions for given one. + This will search the same tag list for give question(by exactly same string) first. + Questions with the individual tags will be added to list if above questions are not full. + """ + #print datetime.datetime.now() + questions = list(self.filter(tagnames = question.tagnames, deleted=False).all()) + + tags_list = question.tags.all() + for tag in tags_list: + extend_questions = self.filter(tags__id = tag.id, deleted=False)[:50] + for item in extend_questions: + if item not in questions and len(questions) < 10: + questions.append(item) + + #print datetime.datetime.now() + return questions + +class Question(Content, DeletableContent): + title = models.CharField(max_length=300) + tags = models.ManyToManyField('Tag', related_name='questions') + answer_accepted = models.BooleanField(default=False) + closed = models.BooleanField(default=False) + closed_by = models.ForeignKey(User, null=True, blank=True, related_name='closed_questions') + closed_at = models.DateTimeField(null=True, blank=True) + close_reason = models.SmallIntegerField(choices=CLOSE_REASONS, null=True, blank=True) + followed_by = models.ManyToManyField(User, related_name='followed_questions') + + # Denormalised data + answer_count = models.PositiveIntegerField(default=0) + view_count = models.PositiveIntegerField(default=0) + favourite_count = models.PositiveIntegerField(default=0) + last_activity_at = models.DateTimeField(default=datetime.datetime.now) + last_activity_by = models.ForeignKey(User, related_name='last_active_in_questions') + tagnames = models.CharField(max_length=125) + summary = models.CharField(max_length=180) + + favorited_by = models.ManyToManyField(User, through='FavoriteQuestion', related_name='favorite_questions') + + objects = QuestionManager() + + class Meta(Content.Meta): + db_table = u'question' + + def delete(self): + super(Question, self).delete() + try: + ping_google() + except Exception: + logging.debug('problem pinging google did you register you sitemap with google?') + + def save(self, **kwargs): + """ + Overridden to manually manage addition of tags when the object + is first saved. + + This is required as we're using ``tagnames`` as the sole means of + adding and editing tags. + """ + initial_addition = (self.id is None) + + super(Question, self).save(**kwargs) + + if initial_addition: + tags = Tag.objects.get_or_create_multiple(self.tagname_list(), + self.author) + self.tags.add(*tags) + Tag.objects.update_use_counts(tags) + + def tagname_list(self): + """Creates a list of Tag names from the ``tagnames`` attribute.""" + return [name for name in self.tagnames.split(u' ')] + + def tagname_meta_generator(self): + return u','.join([unicode(tag) for tag in self.tagname_list()]) + + def get_absolute_url(self): + return '%s%s' % (reverse('question', args=[self.id]), django_urlquote(slugify(self.title))) + + def has_favorite_by_user(self, user): + if not user.is_authenticated(): + return False + + return FavoriteQuestion.objects.filter(question=self, user=user).count() > 0 + + def get_answer_count_by_user(self, user_id): + from answer import Answer + query_set = Answer.objects.filter(author__id=user_id) + return query_set.filter(question=self).count() + + def get_question_title(self): + if self.closed: + attr = CONST['closed'] + elif self.deleted: + attr = CONST['deleted'] + else: + attr = None + if attr is not None: + return u'%s %s' % (self.title, attr) + else: + return self.title + + def get_revision_url(self): + return reverse('question_revisions', args=[self.id]) + + def get_latest_revision(self): + return self.revisions.all()[0] + + def get_last_update_info(self): + when, who = self.post_get_last_update_info() + + answers = self.answers.all() + if len(answers) > 0: + for a in answers: + a_when, a_who = a.post_get_last_update_info() + if a_when > when: + when = a_when + who = a_who + + return when, who + + def get_update_summary(self,last_reported_at=None,recipient_email=''): + edited = False + if self.last_edited_at and self.last_edited_at > last_reported_at: + if self.last_edited_by.email != recipient_email: + edited = True + comments = [] + for comment in self.comments.all(): + if comment.added_at > last_reported_at and comment.user.email != recipient_email: + comments.append(comment) + new_answers = [] + answer_comments = [] + modified_answers = [] + commented_answers = [] + import sets + commented_answers = sets.Set([]) + for answer in self.answers.all(): + if (answer.added_at > last_reported_at and answer.author.email != recipient_email): + new_answers.append(answer) + if (answer.last_edited_at + and answer.last_edited_at > last_reported_at + and answer.last_edited_by.email != recipient_email): + modified_answers.append(answer) + for comment in answer.comments.all(): + if comment.added_at > last_reported_at and comment.user.email != recipient_email: + commented_answers.add(answer) + answer_comments.append(comment) + + #create the report + if edited or new_answers or modified_answers or answer_comments: + out = [] + if edited: + out.append(_('%(author)s modified the question') % {'author':self.last_edited_by.username}) + if new_answers: + names = sets.Set(map(lambda x: x.author.username,new_answers)) + people = ', '.join(names) + out.append(_('%(people)s posted %(new_answer_count)s new answers') \ + % {'new_answer_count':len(new_answers),'people':people}) + if comments: + names = sets.Set(map(lambda x: x.user.username,comments)) + people = ', '.join(names) + out.append(_('%(people)s commented the question') % {'people':people}) + if answer_comments: + names = sets.Set(map(lambda x: x.user.username,answer_comments)) + people = ', '.join(names) + if len(commented_answers) > 1: + out.append(_('%(people)s commented answers') % {'people':people}) + else: + out.append(_('%(people)s commented an answer') % {'people':people}) + url = settings.APP_URL + self.get_absolute_url() + retval = '<a href="%s">%s</a>:<br>\n' % (url,self.title) + out = map(lambda x: '<li>' + x + '</li>',out) + retval += '<ul>' + '\n'.join(out) + '</ul><br>\n' + return retval + else: + return None + + def __unicode__(self): + return self.title + + +class QuestionView(models.Model): + question = models.ForeignKey(Question, related_name='viewed') + who = models.ForeignKey(User, related_name='question_views') + when = models.DateTimeField() + + class Meta: + app_label = 'forum' + +class FavoriteQuestion(models.Model): + """A favorite Question of a User.""" + question = models.ForeignKey(Question) + user = models.ForeignKey(User, related_name='user_favorite_questions') + added_at = models.DateTimeField(default=datetime.datetime.now) + + class Meta: + app_label = 'forum' + db_table = u'favorite_question' + def __unicode__(self): + return '[%s] favorited at %s' %(self.user, self.added_at) + +class QuestionRevision(ContentRevision): + """A revision of a Question.""" + question = models.ForeignKey(Question, related_name='revisions') + title = models.CharField(max_length=300) + tagnames = models.CharField(max_length=125) + + class Meta(ContentRevision.Meta): + db_table = u'question_revision' + ordering = ('-revision',) + + def get_question_title(self): + return self.question.title + + def get_absolute_url(self): + #print 'in QuestionRevision.get_absolute_url()' + return reverse('question_revisions', args=[self.question.id]) + + def save(self, **kwargs): + """Looks up the next available revision number.""" + if not self.revision: + self.revision = QuestionRevision.objects.filter( + question=self.question).values_list('revision', + flat=True)[0] + 1 + super(QuestionRevision, self).save(**kwargs) + + def __unicode__(self): + return u'revision %s of %s' % (self.revision, self.title) + +class AnonymousQuestion(AnonymousContent): + title = models.CharField(max_length=300) + tagnames = models.CharField(max_length=125) + + def publish(self,user): + added_at = datetime.datetime.now() + QuestionManager.create_new(title=self.title, author=user, added_at=added_at, + wiki=self.wiki, tagnames=self.tagnames, + summary=self.summary, text=self.text) + self.delete() + +from answer import Answer, AnswerManager |