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from base import *
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes import generic
from django.contrib.auth.models import User
from hashlib import md5
import string
from random import Random
from forum import const
import datetime
from django.utils.translation import ugettext as _
class Activity(models.Model):
"""
We keep some history data for user activities
"""
user = models.ForeignKey(User)
activity_type = models.SmallIntegerField(choices=TYPE_ACTIVITY)
active_at = models.DateTimeField(default=datetime.datetime.now)
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')
is_auditted = models.BooleanField(default=False)
def __unicode__(self):
return u'[%s] was active at %s' % (self.user.username, self.active_at)
class Meta:
app_label = 'forum'
db_table = u'activity'
class MentionManager(models.Manager):
def get_question_list(self):
out = []
for m in self.all():
post = m.content_object
if isinstance(post, Question):
out.append(post)
elif isinstance(post, Answer):
out.append(post.question)
elif isinstance(post, Comment):
p = post.content_object
if isinstance(p, Question):
out.append(p)
elif isinstance(p, Answer):
out.append(p.question)
return out
class Mention(models.Model):
"""
Table holding @mention type entries in the posts
"""
mentioned_by = models.ForeignKey(User, related_name = 'mentions_sent')
mentioned_whom = models.ForeignKey(User, related_name = 'mentions_received')
mentioned_at = models.DateTimeField(default=datetime.datetime.now)
#have to use generic foreign key here to point to the context of the mention
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')
objects = MentionManager()
class Meta:
app_label = 'forum'
db_table = u'mention'
class EmailFeedSetting(models.Model):
DELTA_TABLE = {
'i':datetime.timedelta(-1),#instant emails are processed separately
'd':datetime.timedelta(1),
'w':datetime.timedelta(7),
'n':datetime.timedelta(-1),
}
FEED_TYPES = (
('q_all',_('Entire forum')),
('q_ask',_('Questions that I asked')),
('q_ans',_('Questions that I answered')),
('q_sel',_('Individually selected questions')),
('m_and_c',_('Mentions and comment responses')),
)
UPDATE_FREQUENCY = (
('i',_('Instantly')),
('d',_('Daily')),
('w',_('Weekly')),
('n',_('No email')),
)
subscriber = models.ForeignKey(User, related_name='notification_subscriptions')
feed_type = models.CharField(max_length=16,choices=FEED_TYPES)
frequency = models.CharField(
max_length=8,
choices=const.NOTIFICATION_DELIVERY_SCHEDULE_CHOICES,
default='n',
)
added_at = models.DateTimeField(auto_now_add=True)
reported_at = models.DateTimeField(null=True)
#functions for rich comparison
#PRECEDENCE = ('i','d','w','n')#the greater ones are first
#def __eq__(self, other):
# return self.id == other.id
# def __eq__(self, other):
# return self.id != other.id
# def __gt__(self, other):
# return PRECEDENCE.index(self.frequency) < PRECEDENCE.index(other.frequency)
# def __lt__(self, other):
# return PRECEDENCE.index(self.frequency) > PRECEDENCE.index(other.frequency)
# def __gte__(self, other):
# if self.__eq__(other):
# return True
# else:
# return self.__gt__(other)
# def __lte__(self, other):
# if self.__eq__(other):
# return True
# else:
# return self.__lt__(other)
def save(self,*args,**kwargs):
type = self.feed_type
subscriber = self.subscriber
similar = self.__class__.objects.filter(feed_type=type,subscriber=subscriber).exclude(pk=self.id)
if len(similar) > 0:
raise IntegrityError('email feed setting already exists')
super(EmailFeedSetting,self).save(*args,**kwargs)
def get_previous_report_cutoff_time(self):
now = datetime.datetime.now()
return now - self.DELTA_TABLE[self.frequency]
def should_send_now(self):
now = datetime.datetime.now()
cutoff_time = self.get_previous_report_cutoff_time()
if self.reported_at == None or self.reported_at <= cutoff_time:
return True
else:
return False
def mark_reported_now(self):
self.reported_at = datetime.datetime.now()
self.save()
class Meta:
app_label = 'forum'
from forum.utils.time import one_day_from_now
class ValidationHashManager(models.Manager):
def _generate_md5_hash(self, user, type, hash_data, seed):
return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
def create_new(self, user, type, hash_data=[], expiration=None):
seed = ''.join(Random().sample(string.letters+string.digits, 12))
hash = self._generate_md5_hash(user, type, hash_data, seed)
obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
if expiration is not None:
obj.expiration = expiration
try:
obj.save()
except:
return None
return obj
def validate(self, hash, user, type, hash_data=[]):
try:
obj = self.get(hash_code=hash)
except:
return False
if obj.type != type:
return False
if obj.user != user:
return False
valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
if valid:
if obj.expiration < datetime.datetime.now():
obj.delete()
return False
else:
obj.delete()
return True
return False
class ValidationHash(models.Model):
#todo: was 256 chars - is that important?
#on mysql 255 is max for unique=True
hash_code = models.CharField(max_length=255,unique=True)
seed = models.CharField(max_length=12)
expiration = models.DateTimeField(default=one_day_from_now)
type = models.CharField(max_length=12)
user = models.ForeignKey(User)
objects = ValidationHashManager()
class Meta:
unique_together = ('user', 'type')
app_label = 'forum'
def __str__(self):
return self.hash_code
class AuthKeyUserAssociation(models.Model):
key = models.CharField(max_length=255,null=False,unique=True)
provider = models.CharField(max_length=64)#string 'yahoo', 'google', etc.
user = models.ForeignKey(User, related_name="auth_keys")
added_at = models.DateTimeField(default=datetime.datetime.now)
class Meta:
app_label = 'forum'
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