cablegates/pandora/itemlist/models.py
2011-01-22 15:44:30 +05:30

140 lines
4.2 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division, with_statement
import os
import subprocess
from django.db import models
from django.contrib.auth.models import User
from ox.django.fields import DictField
import managers
class List(models.Model):
class Meta:
unique_together = ("user", "name")
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
user = models.ForeignKey(User, related_name='lists')
name = models.CharField(max_length=255)
status = models.CharField(max_length=20, default='private')
_status = ['private', 'public', 'featured']
query = DictField(default={"static": True})
type= models.CharField(max_length=255, default='static')
description = models.TextField(default='')
icon = models.ImageField(default=None, blank=True,
upload_to=lambda i, x: i.path("icon.jpg"))
#is through table still required?
items = models.ManyToManyField('item.Item', related_name='lists',
through='ListItem')
subscribed_users = models.ManyToManyField(User, related_name='subscribed_lists')
objects = managers.ListManager()
def save(self, *args, **kwargs):
if self.query.get('static', False):
self.type = 'static'
else:
self.type = 'smart'
super(List, self).save(*args, **kwargs)
def get_number_of_items(self, user=None):
if self.query.get('static', False):
return self.items.count()
else:
from item.models import Item
return Item.objects.find({'query': self.query}, user).count()
def add(self, item):
q = self.items.filter(id=item.id)
if q.count() == 0:
l = ListItem()
l.list = self
l.item = item
l.save()
def remove(self, item):
ListItem.objects.all().filter(item=item, list=self).delete()
def __unicode__(self):
return self.get_id()
def get_id(self):
return u'%s/%s' % (self.user.username, self.name)
def editable(self, user):
#FIXME: make permissions work
if self.user == user or user.is_staff:
return True
return False
def json(self, keys=None, user=None):
if not keys:
keys=['id', 'name', 'user', 'type', 'query', 'status', 'subscribed']
response = {}
for key in keys:
if key == 'items':
response[key] = self.get_number_of_items(user)
elif key == 'id':
response[key] = self.get_id()
elif key == 'user':
response[key] = self.user.username
elif key == 'query':
if not self.query.get('static', False):
response[key] = self.query
elif key == 'subscribed':
if user and not user.is_anonymous():
response[key] = self.subscribed_users.filter(id=user.id).exists()
else:
response[key] = getattr(self, key)
return response
def path(self, name=''):
h = self.get_id()
return os.path.join('lists', h[:2], h[2:4], h[4:6], h[6:], name)
def make_icon(self):
frames = []
self.icon.name = self.path('icon.png')
icon = self.icon.path
if frames:
cmd = [
'scripts/list_icon',
'-f', ','.join(frames),
'-o', icon
]
p = subprocess.Popen(cmd)
p.wait()
class ListItem(models.Model):
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
list = models.ForeignKey(List)
item = models.ForeignKey('item.Item')
def __unicode__(self):
return u'%s in %s' % (self.item, self.list)
class Position(models.Model):
class Meta:
unique_together = ("user", "list", "section")
list = models.ForeignKey(List, related_name='position')
user = models.ForeignKey(User)
section = models.CharField(max_length='255')
position = models.IntegerField(default=0)
def __unicode__(self):
return u'%s/%s/%s' % (self.section, self.position, self.list)