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[redakcja.git] / src / documents / models / chunk.py

diff --git a/src/documents/models/chunk.py b/src/documents/models/chunk.py
index 39a2087..4d8f6d2 100644 (file)
--- a/src/documents/models/chunk.py
+++ b/src/documents/models/chunk.py
@@ -6,7 +6,7 @@ from django.db import models
 from django.db.utils import IntegrityError
 from django.template.loader import render_to_string
 from django.urls import reverse
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from documents.helpers import cached_in_field
 from documents.managers import VisibleManager
 from dvcs import models as dvcs_models
@@ -23,9 +23,9 @@ class Chunk(dvcs_models.Document):
     gallery_start = models.IntegerField(_('gallery start'), null=True, blank=True, default=1)
 
     # cache
-    _hidden = models.NullBooleanField(editable=False)
-    _changed = models.NullBooleanField(editable=False)
-    _new_publishable = models.NullBooleanField(editable=False)
+    _hidden = models.BooleanField(editable=False, null=True)
+    _changed = models.BooleanField(editable=False, null=True)
+    _new_publishable = models.BooleanField(editable=False, null=True)
 
     # managers
     objects = models.Manager()
@@ -39,6 +39,20 @@ class Chunk(dvcs_models.Document):
         verbose_name_plural = _('chunks')
         permissions = [('can_pubmark', 'Can mark for publishing')]
 
+    @classmethod
+    def get_visible_for(cls, user):
+        qs = cls.objects.all()
+        if not user.is_authenticated:
+            qs = qs.filter(book__public=True)
+        return qs
+
+    @classmethod
+    def get_revisions_visible_for(cls, user):
+        qs = cls.change_model.objects.all()
+        if not user.is_authenticated:
+            qs = qs.filter(tree__book__public=True)
+        return qs
+    
     # Representing
     # ============