from django.core.files.base import ContentFile
from django.db import models
-from django.db.models import permalink
+from django.utils.timezone import utc
from django.utils.translation import ugettext_lazy as _
from django.core.urlresolvers import reverse
-from django.db.models.signals import m2m_changed
from django.contrib.auth.models import User
from django.contrib.contenttypes.models import ContentType
-from django.contrib.contenttypes import generic
+from django.contrib.contenttypes.fields import GenericForeignKey
from django.conf import settings
-from librarian import text
-from catalogue.fields import JSONField
+from jsonfield import JSONField
from catalogue.models import Book, Tag
class Poem(models.Model):
slug = models.SlugField(_('slug'), max_length=120, db_index=True)
text = models.TextField(_('text'))
- created_by = models.ForeignKey(User)
+ created_by = models.ForeignKey(User, null=True)
created_from = JSONField(_('extra information'), null=True, blank=True)
created_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
seen_at = models.DateTimeField(_('last view date'), auto_now_add=True, editable=False)
def visit(self):
self.view_count += 1
- self.seen_at = datetime.now()
+ self.seen_at = datetime.utcnow().replace(tzinfo=utc)
self.save()
def __unicode__(self):
return "%s (%s...)" % (self.slug, self.text[:20])
- @classmethod
- def write(cls, continuations=None, length=3, maxlen=1000):
- def choose_word(word, continuations):
- try:
- choices = sum((continuations[word][post] for post in continuations[word]))
- r = randint(0, choices - 1)
+ @staticmethod
+ def choose_letter(word, continuations):
+ if word not in continuations:
+ return u'\n'
- for post in continuations[word]:
- r -= continuations[word][post]
- if r < 0:
- return post
- except KeyError:
- return ''
+ choices = sum((continuations[word][letter]
+ for letter in continuations[word]))
+ r = randint(0, choices - 1)
+ for letter in continuations[word]:
+ r -= continuations[word][letter]
+ if r < 0:
+ return letter
+ @classmethod
+ def write(cls, continuations=None, length=3, min_lines=2, maxlen=1000):
if continuations is None:
continuations = cls.global_dictionary
+ if not continuations:
+ return ''
letters = []
word = u''
- empty = -10
- lines = 0
- if not continuations:
- maxlen = 0
- # want at least two lines, but let Lesmianator end his stanzas
- while (empty < 2 or lines < 2) and maxlen:
- letter = choose_word(word, continuations)
+
+ finished_stanza_verses = 0
+ current_stanza_verses = 0
+ verse_start = True
+
+ char_count = 0
+
+ # do `min_lines' non-empty verses and then stop,
+ # but let Lesmianator finish his last stanza.
+ while finished_stanza_verses < min_lines and char_count < maxlen:
+ letter = cls.choose_letter(word, continuations)
letters.append(letter)
- word = word[-length+1:] + letter
+ word = word[-length + 1:] + letter
+ char_count += 1
+
if letter == u'\n':
- # count non-empty lines
- if empty == 0:
- lines += 1
- #
- if lines >= 2:
- empty += 1
- lines += 1
+ if verse_start:
+ finished_stanza_verses += current_stanza_verses
+ current_stanza_verses = 0
+ else:
+ current_stanza_verses += 1
+ verse_start = True
else:
- empty = 0
- maxlen -= 1
+ verse_start = False
return ''.join(letters).strip()
pickle = models.FileField(_('Continuations file'), upload_to='lesmianator')
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
- content_object = generic.GenericForeignKey('content_type', 'object_id')
+ content_object = GenericForeignKey('content_type', 'object_id')
+
+ class Meta:
+ unique_together = (('content_type', 'object_id'), )
def __unicode__(self):
return "Continuations for: %s" % unicode(self.content_object)
@classmethod
def for_book(cls, book, length=3):
# count from this book only
- print 'for_book', book
output = StringIO()
- f = open(book.xml_file.path)
- text.transform(f, output, False, ('raw-text',))
- f.close()
+ wldoc = book.wldocument(parse_dublincore=False)
+ output = wldoc.as_text(('raw-text',)).get_string()
+ del wldoc
+
conts = {}
last_word = ''
- for letter in output.getvalue().decode('utf-8').strip().lower():
+ for letter in output.decode('utf-8').strip().lower():
mydict = conts.setdefault(last_word, {})
mydict.setdefault(letter, 0)
mydict[letter] += 1
last_word = last_word[-length+1:] + letter
# add children
- return reduce(cls.join_conts,
- (cls.get(child) for child in book.children.all()),
+ return reduce(cls.join_conts,
+ (cls.get(child) for child in book.children.all().iterator()),
conts)
@classmethod
def for_set(cls, tag):
# book contains its descendants, we don't want them twice
books = Book.tagged.with_any((tag,))
- l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books])
- descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
+ l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books.iterator()])
+ descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags).iterator()]
if descendants_keys:
books = books.exclude(pk__in=descendants_keys)
- cont_tabs = (cls.get(b) for b in books)
+ cont_tabs = (cls.get(b) for b in books.iterator())
return reduce(cls.join_conts, cont_tabs)
@classmethod
def get(cls, sth):
object_type = ContentType.objects.get_for_model(sth)
+ should_keys = set([sth.id])
+ if isinstance(sth, Tag):
+ should_keys = set(b.pk for b in Book.tagged.with_any((sth,)).iterator())
try:
obj = cls.objects.get(content_type=object_type, object_id=sth.id)
+ if not obj.pickle:
+ raise cls.DoesNotExist
f = open(obj.pickle.path)
- conts = cPickle.load(f)
+ keys, conts = cPickle.load(f)
f.close()
+ if set(keys) != should_keys:
+ raise cls.DoesNotExist
return conts
except cls.DoesNotExist:
if isinstance(sth, Book):
else:
raise NotImplemented('Lesmianator continuations: only Book and Tag supported')
- c = cls(content_object=sth)
- c.pickle.save(sth.slug+'.p', ContentFile(cPickle.dumps(conts)))
+ c, created = cls.objects.get_or_create(content_type=object_type, object_id=sth.id)
+ c.pickle.save(sth.slug+'.p', ContentFile(cPickle.dumps((should_keys, conts))))
c.save()
return conts
fnp / wolnelektury.git / blobdiff