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import datetime
from itertools import chain
from django.db import models
from django.core.urlresolvers import reverse
from django.contrib.sitemaps import Sitemap
from django.contrib.syndication.views import Feed
from django.db.models.signals import post_save
from django.dispatch import receiver
from utils.widgets import markdown_to_html
from .ebook import generate_epub_file
class Series(models.Model):
title = models.CharField(max_length=200)
slug = models.CharField(max_length=50)
is_book = models.BooleanField(default=False)
body_markdown = models.TextField(null=True, blank=True)
body_html = models.TextField(null=True, blank=True)
pub_date = models.DateTimeField(auto_now_add=True)
class Meta:
verbose_name_plural = 'Series'
def __str__(self):
return self.title
class Figment(models.Model):
title = models.CharField(max_length=200)
slug = models.CharField(max_length=50)
pub_date = models.DateTimeField(blank=True)
body_markdown = models.TextField(null=True, blank=True)
prologue = models.TextField(null=True, blank=True)
dek = models.TextField(null=True, blank=True)
body_html = models.TextField(null=True, blank=True)
PUB_STATUS = (
(0, 'Draft'),
(1, 'Published'),
)
status = models.IntegerField(choices=PUB_STATUS, default=0)
series = models.ManyToManyField(Series, related_name="series", blank=True)
TEMPLATES = (
(0, 'default'),
)
template_name = models.IntegerField(choices=TEMPLATES, default=0)
published_link = models.CharField(max_length=300, help_text="link to online pub", blank=True, null=True)
class Meta:
ordering = ('-pub_date',)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse("figments:detail", kwargs={"slug": self.slug})
def get_series(self):
return "\n".join([s.title for s in self.series.all()])
@classmethod
def from_db(cls, db, field_names, values):
# default implementation of from_db() (could be replaced
# with super())
if cls._deferred:
instance = cls(**zip(field_names, values))
else:
instance = cls(*values)
instance._state.adding = False
instance._state.db = db
# customization to store the original field values on the instance
instance._loaded_values = dict(zip(field_names, values))
return instance
def save(self, *args, **kwargs):
if not self.id and not self.pub_date:
self.pub_date = datetime.datetime.now()
self.body_html = markdown_to_html(self.body_markdown)
super(Figment, self).save()
@receiver(post_save, sender=Figment)
def post_save_events(sender, instance, **kwargs):
if instance.body_markdown != instance._loaded_values['body_markdown']:
print("you updated")
generate_epub_file(instance)
else:
print("no update found, not buidling")
class LatestFull(Feed):
title = "luxagraf figments: stories less literally true."
link = "/figments/"
description = "Latest postings to luxagraf.net/figments"
description_template = 'feeds/blog_description.html'
def items(self):
return Figment.objects.filter(status__exact=1).order_by('-pub_date')[:10]
class FigmentSitemap(Sitemap):
changefreq = "never"
priority = 0.7
protocol = "https"
def items(self):
return list(chain(Figment.objects.filter(status__exact=1), Series.objects.all()))
def lastmod(self, obj):
return obj.pub_date
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