from django.db import models
from django.db.models import permalink, Q
+from django.core.cache import cache
from django.utils.translation import ugettext_lazy as _
from django.contrib.auth.models import User
from django.core.files import File
description = models.TextField(_('description'), blank=True)
created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
changed_at = models.DateTimeField(_('creation date'), auto_now=True, db_index=True)
- _short_html = models.TextField(_('short HTML'), editable=False)
parent_number = models.IntegerField(_('parent number'), default=0)
extra_info = JSONField(_('extra information'), default='{}')
gazeta_link = models.CharField(blank=True, max_length=240)
tagged = managers.ModelTaggedItemManager(Tag)
tags = managers.TagDescriptor(Tag)
- _tag_counter = JSONField(null=True, editable=False)
- _theme_counter = JSONField(null=True, editable=False)
-
class AlreadyExists(Exception):
pass
self.sort_key = sortify(self.title)
if reset_short_html:
- # Reset _short_html during save
- update = {}
- for key in filter(lambda x: x.startswith('_short_html'), self.__dict__):
- update[key] = ''
- self.__setattr__(key, '')
- # Fragment.short_html relies on book's tags, so reset it here too
- self.fragments.all().update(**update)
+ self.reset_short_html()
return super(Book, self).save(force_insert, force_update)
def get_daisy(self):
return self.get_media("daisy")
+ def reset_short_html(self):
+ cache_key = "Book.short_html/%d/%s"
+ for lang, langname in settings.LANGUAGES:
+ cache.delete(cache_key % (self.id, lang))
+ # Fragment.short_html relies on book's tags, so reset it here too
+ for fragm in self.fragments.all():
+ fragm.reset_short_html()
+
def short_html(self):
- key = '_short_html_%s' % get_language()
- short_html = getattr(self, key)
+ cache_key = "Book.short_html/%d/%s" % (self.id, get_language())
+ short_html = cache.get(cache_key)
- if short_html and len(short_html):
+ if short_html is not None:
return mark_safe(short_html)
else:
tags = self.tags.filter(~Q(category__in=('set', 'theme', 'book')))
formats = [mark_safe(format) for format in formats]
- setattr(self, key, unicode(render_to_string('catalogue/book_short.html',
- {'book': self, 'tags': tags, 'formats': formats})))
- self.save(reset_short_html=False)
- return mark_safe(getattr(self, key))
-
+ short_html = unicode(render_to_string('catalogue/book_short.html',
+ {'book': self, 'tags': tags, 'formats': formats}))
+ cache.set(cache_key, short_html)
+ return mark_safe(short_html)
@property
def root_ancestor(self):
book.title = book_info.title
book.set_extra_info_value(book_info.to_dict())
- book._short_html = ''
book.save()
meta_tags = []
book.save()
return book
-
- def refresh_tag_counter(self):
- tags = {}
- for child in self.children.all().order_by():
- for tag_pk, value in child.tag_counter.iteritems():
- tags[tag_pk] = tags.get(tag_pk, 0) + value
- for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
- tags[tag.pk] = 1
- self.set__tag_counter_value(tags)
- self.save(reset_short_html=False)
- return tags
-
def reset_tag_counter(self):
- self._tag_counter = None
- self.save(reset_short_html=False)
+ cache_key = "Book.tag_counter/%d" % self.id
+ cache.delete(cache_key)
if self.parent:
self.parent.reset_tag_counter()
@property
def tag_counter(self):
- if self._tag_counter is None:
- return self.refresh_tag_counter()
- return dict((int(k), v) for k, v in self.get__tag_counter_value().iteritems())
-
- def refresh_theme_counter(self):
- tags = {}
- for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
- for tag in fragment.tags.filter(category='theme').order_by():
- tags[tag.pk] = tags.get(tag.pk, 0) + 1
- self.set__theme_counter_value(tags)
- self.save(reset_short_html=False)
+ cache_key = "Book.tag_counter/%d" % self.id
+ tags = cache.get(cache_key)
+ if tags is None:
+ tags = {}
+ for child in self.children.all().order_by():
+ for tag_pk, value in child.tag_counter.iteritems():
+ tags[tag_pk] = tags.get(tag_pk, 0) + value
+ for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
+ tags[tag.pk] = 1
+
+ cache.set(cache_key, tags)
return tags
def reset_theme_counter(self):
- self._theme_counter = None
- self.save(reset_short_html=False)
+ cache_key = "Book.theme_counter/%d" % self.id
+ cache.delete(cache_key)
if self.parent:
self.parent.reset_theme_counter()
@property
def theme_counter(self):
- if self._theme_counter is None:
- return self.refresh_theme_counter()
- return dict((int(k), v) for k, v in self.get__theme_counter_value().iteritems())
+ cache_key = "Book.theme_counter/%d" % self.id
+ tags = cache.get(cache_key)
+ if tags is None:
+ tags = {}
+ for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
+ for tag in fragment.tags.filter(category='theme').order_by():
+ tags[tag.pk] = tags.get(tag.pk, 0) + 1
+
+ cache.set(cache_key, tags)
+ return tags
def pretty_title(self, html_links=False):
book = self
class Fragment(models.Model):
text = models.TextField()
short_text = models.TextField(editable=False)
- _short_html = models.TextField(editable=False)
anchor = models.CharField(max_length=120)
book = models.ForeignKey(Book, related_name='fragments')
def get_absolute_url(self):
return '%s#m%s' % (reverse('book_text', kwargs={'slug': self.book.slug}), self.anchor)
+ def reset_short_html(self):
+ cache_key = "Fragment.short_html/%d/%s"
+ for lang, langname in settings.LANGUAGES:
+ cache.delete(cache_key % (self.id, lang))
+
def short_html(self):
- key = '_short_html_%s' % get_language()
- short_html = getattr(self, key)
- if short_html and len(short_html):
+ cache_key = "Fragment.short_html/%d/%s" % (self.id, get_language())
+ short_html = cache.get(cache_key)
+
+ if short_html is not None:
return mark_safe(short_html)
else:
- setattr(self, key, unicode(render_to_string('catalogue/fragment_short.html',
- {'fragment': self})))
- self.save()
- return mark_safe(getattr(self, key))
+ short_html = unicode(render_to_string('catalogue/fragment_short.html',
+ {'fragment': self}))
+ cache.set(cache_key, short_html)
+ return mark_safe(short_html)
class FileRecord(models.Model):
fnp / wolnelektury.git / blobdiff