regluit/core/models.py

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import random
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import datetime
from decimal import Decimal
from django.db import models
from django.db.models import Q
from django.contrib.auth.models import User
class UnglueitError(RuntimeError):
pass
class Campaign(models.Model):
created = models.DateTimeField(auto_now_add=True)
name = models.CharField(max_length=500, null=True, blank=False)
description = models.TextField(null=True, blank=False)
target = models.DecimalField(max_digits=14, decimal_places=2, null=True, blank=False)
deadline = models.DateTimeField()
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activated = models.DateTimeField(null=True)
suspended = models.DateTimeField(null=True)
withdrawn = models.DateTimeField(null=True)
suspended_reason = models.TextField(null=True, blank=True)
withdrawn_reason = models.TextField(null=True, blank=True)
paypal_receiver = models.CharField(max_length=100, blank=True)
amazon_receiver = models.CharField(max_length=100, blank=True)
work = models.ForeignKey("Work", related_name="campaigns", null=False)
def __unicode__(self):
try:
return u"Campaign for %s" % self.work.title
except:
return u"Campaign %s (no associated work)" % self.name
@property
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def status(self):
"""Returns the status of the campaign
"""
now = datetime.datetime.utcnow()
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if self.activated is None:
return 'INITIALIZED'
elif self.suspended is not None:
return 'SUSPENDED'
elif self.withdrawn is not None:
return 'WITHDRAWN'
elif self.deadline < now:
if self.current_total >= self.target:
return 'SUCCESSFUL'
else:
return 'UNSUCCESSFUL'
else:
return 'ACTIVE'
@property
def current_total(self):
p = PaymentManager()
return p.query_campaign(campaign=self,summary=True)
def transactions(self, pledged=True, authorized=True):
p = PaymentManager()
return p.query_campaign(campaign=self, summary=False, pledged=pledged, authorized=authorized)
def activate(self):
status = self.status
if status != 'INITIALIZED':
raise UnglueitError('Campaign needs to be initialized in order to be activated')
self.activated = datetime.datetime.utcnow()
self.save()
return self
def suspend(self, reason):
status = self.status
if status != 'ACTIVE':
raise UnglueitError('Campaign needs to be active in order to be suspended')
self.suspended = datetime.datetime.utcnow()
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self.suspended_reason = reason
self.save()
return self
def withdraw(self, reason):
status = self.status
if status != 'ACTIVE':
raise UnglueitError('Campaign needs to be active in order to be withdrawn')
self.withdrawn = datetime.datetime.utcnow()
self.withdrawn_reason = reason
self.save()
return self
def resume(self):
"""Change campaign status from SUSPENDED to ACTIVE. We may want to track reason for resuming and track history"""
status = self.status
if status != 'SUSPENDED':
raise UnglueitError('Campaign needs to be suspended in order to be resumed')
self.suspended = None
self.suspended_reason = None
self.save()
return self
class Work(models.Model):
created = models.DateTimeField(auto_now_add=True)
title = models.CharField(max_length=1000)
openlibrary_id = models.CharField(max_length=50, null=True)
def cover_image_small(self):
return self.editions.all()[0].cover_image_small()
def last_campaign_status(self):
try:
last = self.campaigns.order_by('-created')[0].status
except:
last = "No campaign yet"
return last
def percent_unglued(self):
if(self.last_campaign_status() == 'SUCCESSFUL'):
return 6;
elif(self.last_campaign_status() == 'ACTIVE'):
target = float(self.campaigns.order_by('-created')[0].target)
if target <= 0:
return 6
else:
total = float(self.campaigns.order_by('-created')[0].current_total)
percent = int(total*6/target)
if percent >= 6:
return 6
else:
return percent;
else:
return 0;
def __unicode__(self):
return self.title
class Author(models.Model):
created = models.DateTimeField(auto_now_add=True)
name = models.CharField(max_length=500)
editions = models.ManyToManyField("Edition", related_name="authors")
def __unicode__(self):
return self.name
class Subject(models.Model):
created = models.DateTimeField(auto_now_add=True)
name = models.CharField(max_length=500)
editions = models.ManyToManyField("Edition", related_name="subjects")
def __unicode__(self):
return self.name
class Edition(models.Model):
googlebooks_id = models.CharField(max_length=50, null=False)
created = models.DateTimeField(auto_now_add=True)
title = models.CharField(max_length=1000)
description = models.TextField(default='', null=True)
publisher = models.CharField(max_length=255)
publication_date = models.CharField(max_length=50)
isbn_10 = models.CharField(max_length=10, null=True)
isbn_13 = models.CharField(max_length=13, null=True)
work = models.ForeignKey("Work", related_name="editions", null=True)
language = models.CharField(max_length=2, null=True)
def __unicode__(self):
return "%s (%s)" % (self.title, self.isbn_13)
def cover_image_small(self):
server_id = random.randint(0, 9)
return "http://bks%i.books.google.com/books?id=%s&printsec=frontcover&img=1&zoom=5" % (server_id, self.googlebooks_id)
def cover_image_thumbnail(self):
server_id = random.randint(0, 9)
return "http://bks%s.books.google.com/books?id=%s&printsec=frontcover&img=1&zoom=1" % (server_id, self.googlebooks_id)
@classmethod
def get_by_isbn(klass, isbn):
for e in Edition.objects.filter(Q(isbn_10=isbn) | Q(isbn_13=isbn)):
return e
return None
class Wishlist(models.Model):
created = models.DateTimeField(auto_now_add=True)
user = models.OneToOneField(User, related_name='wishlist')
works = models.ManyToManyField('Work', related_name='wishlists')
class UserProfile(models.Model):
user = models.OneToOneField(User, related_name='profile')
tagline = models.CharField(max_length=140, blank=True)
home_url = models.URLField(blank=True)
twitter_id = models.CharField(max_length=15, blank=True)
#class GoodreadsProfile(models.Model):
# user_id = models.CharField(max_length=32)
# username = models.CharField(max_length=200, blank=True)
# auth_token = models.TextField(null=True, blank=True)
# auth_secret = models.TextField(null=True, blank=True)
from regluit.core import signals
from regluit.payment.manager import PaymentManager