Update Celery to 4.3

[wolnelektury.git] / src / lesmianator / models.py

diff --git a/src/lesmianator/models.py b/src/lesmianator/models.py
index 684d1c4..f12f1d7 100644 (file)
--- a/src/lesmianator/models.py
+++ b/src/lesmianator/models.py
@@ -1,22 +1,21 @@
-# -*- coding: utf-8 -*-

 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #

-import cPickle
-from cPickle import PickleError
+from functools import reduce
+import pickle
+from pickle import PickleError

 from datetime import datetime
 from random import randint
 from datetime import datetime
 from random import randint

-from StringIO import StringIO

 
 from django.core.files.base import ContentFile
 from django.db import models
 from django.utils.timezone import utc
 from django.utils.translation import ugettext_lazy as _
 
 from django.core.files.base import ContentFile
 from django.db import models
 from django.utils.timezone import utc
 from django.utils.translation import ugettext_lazy as _

-from django.core.urlresolvers import reverse

 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.conf import settings

+from django.urls import reverse

 
 from jsonfield import JSONField
 from catalogue.models import Book, Tag
 
 from jsonfield import JSONField
 from catalogue.models import Book, Tag


@@ -25,15 +24,15 @@ from catalogue.models import Book, Tag
 class Poem(models.Model):
     slug = models.SlugField(_('slug'), max_length=120, db_index=True)
     text = models.TextField(_('text'))
 class Poem(models.Model):
     slug = models.SlugField(_('slug'), max_length=120, db_index=True)
     text = models.TextField(_('text'))

-    created_by = models.ForeignKey(User, null=True)
+    created_by = models.ForeignKey(User, models.SET_NULL, 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)
     view_count = models.IntegerField(_('view count'), default=1)
 
     try:
     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)
     view_count = models.IntegerField(_('view count'), default=1)
 
     try:

-        f = open(settings.LESMIANATOR_PICKLE)
-        global_dictionary = cPickle.load(f)
+        f = open(settings.LESMIANATOR_PICKLE, 'rb')
+        global_dictionary = pickle.load(f)

         f.close()
     except (IOError, AttributeError, PickleError):
         global_dictionary = {}
         f.close()
     except (IOError, AttributeError, PickleError):
         global_dictionary = {}


@@ -43,7 +42,7 @@ class Poem(models.Model):
         self.seen_at = datetime.utcnow().replace(tzinfo=utc)
         self.save()
 
         self.seen_at = datetime.utcnow().replace(tzinfo=utc)
         self.save()
 

-    def __unicode__(self):
+    def __str__(self):

         return "%s (%s...)" % (self.slug, self.text[:20])
 
     @staticmethod
         return "%s (%s...)" % (self.slug, self.text[:20])
 
     @staticmethod


@@ -102,15 +101,15 @@ class Poem(models.Model):
 
 class Continuations(models.Model):
     pickle = models.FileField(_('Continuations file'), upload_to='lesmianator')
 
 class Continuations(models.Model):
     pickle = models.FileField(_('Continuations file'), upload_to='lesmianator')

-    content_type = models.ForeignKey(ContentType)
+    content_type = models.ForeignKey(ContentType, models.CASCADE)

     object_id = models.PositiveIntegerField()
     content_object = GenericForeignKey('content_type', 'object_id')
 
     class Meta:
         unique_together = (('content_type', 'object_id'), )
 
     object_id = models.PositiveIntegerField()
     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)
+    def __str__(self):
+        return "Continuations for: %s" % str(self.content_object)

 
     @staticmethod
     def join_conts(a, b):
 
     @staticmethod
     def join_conts(a, b):


@@ -124,7 +123,6 @@ class Continuations(models.Model):
     @classmethod
     def for_book(cls, book, length=3):
         # count from this book only
     @classmethod
     def for_book(cls, book, length=3):
         # count from this book only

-        output = StringIO()

         wldoc = book.wldocument(parse_dublincore=False)
         output = wldoc.as_text(('raw-text',)).get_bytes()
         del wldoc
         wldoc = book.wldocument(parse_dublincore=False)
         output = wldoc.as_text(('raw-text',)).get_bytes()
         del wldoc


@@ -157,8 +155,8 @@ class Continuations(models.Model):
             obj = cls.objects.get(content_type=object_type, object_id=sth.id)
             if not obj.pickle:
                 raise cls.DoesNotExist
             obj = cls.objects.get(content_type=object_type, object_id=sth.id)
             if not obj.pickle:
                 raise cls.DoesNotExist

-            f = open(obj.pickle.path)
-            keys, conts = cPickle.load(f)
+            f = open(obj.pickle.path, 'rb')
+            keys, conts = pickle.load(f)

             f.close()
             if set(keys) != should_keys:
                 raise cls.DoesNotExist
             f.close()
             if set(keys) != should_keys:
                 raise cls.DoesNotExist


@@ -172,6 +170,6 @@ class Continuations(models.Model):
                 raise NotImplementedError('Lesmianator continuations: only Book and Tag supported')
 
             c, created = cls.objects.get_or_create(content_type=object_type, object_id=sth.id)
                 raise NotImplementedError('Lesmianator continuations: only Book and Tag supported')
 
             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.pickle.save(sth.slug+'.p', ContentFile(pickle.dumps((should_keys, conts))))

             c.save()
             return conts
             c.save()
             return conts