-
-
Notifications
You must be signed in to change notification settings - Fork 3.1k
/
pagemodel.py
1112 lines (907 loc) · 39.1 KB
/
pagemodel.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
from logging import getLogger
from os.path import join
from django.contrib.sites.models import Site
from django.db import models
from django.db.models import Prefetch
from django.db.models.base import ModelState
from django.db.models.functions import Concat
from django.forms import model_to_dict
from django.urls import reverse
from django.utils.encoding import force_str
from django.utils.functional import cached_property
from django.utils.timezone import now
from django.utils.translation import (
get_language,
gettext_lazy as _,
override as force_language,
)
from treebeard.mp_tree import MP_Node
from cms import constants
from cms.exceptions import LanguageError
from cms.models.managers import PageManager, PageNodeManager, PageUrlManager
from cms.utils import i18n
from cms.utils.conf import get_cms_setting
from cms.utils.i18n import get_current_language
from cms.utils.page import get_clean_username
from menus.menu_pool import menu_pool
logger = getLogger(__name__)
class TreeNode(MP_Node):
parent = models.ForeignKey(
'self',
on_delete=models.CASCADE,
blank=True,
null=True,
related_name='children',
db_index=True,
)
site = models.ForeignKey(
Site,
on_delete=models.CASCADE,
verbose_name=_("site"),
related_name='djangocms_nodes',
db_index=True,
)
objects = PageNodeManager()
class Meta:
app_label = 'cms'
ordering = ('path',)
default_permissions = []
def __str__(self):
return self.path
@cached_property
def item(self):
return self.get_item()
def get_item(self):
# Paving the way...
return Page.objects.get(node=self)
@property
def is_branch(self):
return bool(self.numchild)
def get_ancestor_paths(self):
paths = frozenset(
self.path[0:pos]
for pos in range(0, len(self.path), self.steplen)[1:]
)
return paths
def add_child(self, **kwargs):
if len(kwargs) == 1 and 'instance' in kwargs:
kwargs['instance'].parent = self
else:
kwargs['parent'] = self
return super().add_child(**kwargs)
def add_sibling(self, pos=None, *args, **kwargs):
if len(kwargs) == 1 and 'instance' in kwargs:
kwargs['instance'].parent_id = self.parent_id
else:
kwargs['parent_id'] = self.parent_id
return super().add_sibling(*args, **kwargs)
def update(self, **data):
cls = self.__class__
cls.objects.filter(pk=self.pk).update(**data)
for field, value in data.items():
setattr(self, field, value)
def get_cached_ancestors(self):
if self._has_cached_hierarchy():
return self._ancestors
return []
def get_cached_descendants(self):
if self._has_cached_hierarchy():
return self._descendants
return []
def _reload(self):
"""
Reload a page node from the database
"""
return self.__class__.objects.get(pk=self.pk)
def _has_cached_hierarchy(self):
return hasattr(self, '_descendants') and hasattr(self, '_ancestors')
def _set_hierarchy(self, nodes, ancestors=None):
if self.is_branch:
self._descendants = [
node for node in nodes
if node.path.startswith(self.path) and node.depth > self.depth
]
else:
self._descendants = []
if self.is_root():
self._ancestors = []
else:
self._ancestors = ancestors
children = (node for node in self._descendants
if node.depth == self.depth + 1)
for child in children:
child._set_hierarchy(self._descendants, ancestors=([self] + self._ancestors))
class Page(models.Model):
"""
A ``Page`` is the basic unit of site structure in django CMS. The CMS uses a hierarchical page model: each page
stands in relation to other pages as parent, child or sibling. This hierarchy is managed by the `django-treebeard
<http://django-treebeard.readthedocs.io/en/latest/>`_ library.
A ``Page`` also has language-specific properties - for example, it will have a title and a slug for each language
it exists in. These properties are managed by the :class:`~cms.models.contentmodel.PageContent` model.
"""
created_by = models.CharField(
_("created by"), max_length=constants.PAGE_USERNAME_MAX_LENGTH,
editable=False)
changed_by = models.CharField(
_("changed by"), max_length=constants.PAGE_USERNAME_MAX_LENGTH,
editable=False)
creation_date = models.DateTimeField(auto_now_add=True)
changed_date = models.DateTimeField(auto_now=True)
#
# Please use toggle_in_navigation() instead of affecting this property
# directly so that the cms page cache can be invalidated as appropriate.
#
reverse_id = models.CharField(_("id"), max_length=40, db_index=True, blank=True, null=True, help_text=_(
"A unique identifier that is used with the page_url templatetag for linking to this page"))
navigation_extenders = models.CharField(_("attached menu"), max_length=80, db_index=True, blank=True, null=True)
login_required = models.BooleanField(_("login required"), default=False)
is_home = models.BooleanField(editable=False, db_index=True, default=False)
application_urls = models.CharField(_('application'), max_length=200, blank=True, null=True, db_index=True)
application_namespace = models.CharField(_('application instance name'), max_length=200, blank=True, null=True)
languages = models.CharField(max_length=255, editable=False, blank=True, null=True)
# Flag that marks a page as page-type
is_page_type = models.BooleanField(default=False)
node = models.ForeignKey(
'TreeNode',
related_name='cms_pages',
on_delete=models.CASCADE,
)
# Managers
objects = PageManager()
class Meta:
default_permissions = ('add', 'change', 'delete')
permissions = (
('view_page', 'Can view page'),
('edit_static_placeholder', 'Can edit static placeholders'),
)
verbose_name = _('page')
verbose_name_plural = _('pages')
app_label = 'cms'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.urls_cache = {}
self.page_content_cache = {}
def __str__(self):
try:
title = self.get_menu_title(fallback=True)
except LanguageError:
try:
title = self.pagecontent_set(manager="admin_manager").current()[0]
except IndexError:
title = None
if title is None:
title = ""
return force_str(title)
def __repr__(self):
display = f'<{self.__module__}.{self.__class__.__name__} id={self.pk} object at {hex(id(self))}>'
return display
def _clear_node_cache(self):
if Page.node.is_cached(self):
Page.node.field.delete_cached_value(self)
def _clear_internal_cache(self):
self.urls_cache = {}
self.page_content_cache = {}
self._clear_node_cache()
if hasattr(self, '_prefetched_objects_cache'):
del self._prefetched_objects_cache
@cached_property
def parent_page(self):
return self.get_parent_page()
def has_valid_url(self, language):
return self.urls.filter(language=language, path__isnull=False).exists()
def set_as_homepage(self, user=None):
"""
Sets the given page as the homepage.
Updates the url paths for all affected pages.
Returns the old home page (if any).
"""
if user:
changed_by = get_clean_username(user)
else:
changed_by = constants.SCRIPT_USERNAME
changed_date = now()
try:
old_home = self.__class__.objects.get(
is_home=True,
node__site=self.node.site_id,
)
except self.__class__.DoesNotExist:
old_home_tree = []
else:
old_home.update(
is_home=False,
changed_by=changed_by,
changed_date=changed_date,
)
old_home_tree = old_home._set_title_root_path()
self.update(
is_home=True,
changed_by=changed_by,
changed_date=changed_date,
)
new_home_tree = self._remove_title_root_path()
return (new_home_tree, old_home_tree)
def _get_path_sql_value(self, base_path=''):
if base_path:
new_path = Concat(
models.Value(base_path),
models.Value('/'),
models.F('slug'),
output_field=models.CharField(),
)
elif base_path is None:
new_path = None
else:
# the homepage
new_path = models.F('slug')
return new_path
def _update_url_path(self, language):
parent_page = self.get_parent_page()
base_path = parent_page.get_path(language) if parent_page else ''
new_path = self._get_path_sql_value(base_path)
(PageUrl
.objects
.filter(language=language, page=self)
.exclude(managed=False)
.update(path=new_path)) # TODO: Update or create?
def _update_url_path_recursive(self, language):
if self.node.is_leaf() or language not in self.get_languages():
return
pages = self.get_child_pages()
base_path = self.get_path(language)
new_path = self._get_path_sql_value(base_path)
(PageUrl
.objects
.filter(language=language, page__in=pages)
.exclude(managed=False)
.update(path=new_path)) # TODO: Update or create?
for child in pages.filter(urls__language=language).iterator():
child._update_url_path_recursive(language)
def _set_title_root_path(self):
node_tree = TreeNode.get_tree(self.node)
page_tree = self.__class__.objects.filter(node__in=node_tree)
page_urls = PageUrl.objects.filter(page__in=page_tree, managed=True, path__isnull=False)
for language, slug in self.urls.values_list('language', 'slug'):
# Update the translations for all descendants of this page
# to include this page's slug as its path prefix
(page_urls
.filter(language=language)
.update(path=Concat(models.Value(slug), models.Value('/'), 'path')))
self.update_urls(language, path=slug)
return page_tree
def _remove_title_root_path(self):
node_tree = TreeNode.get_tree(self.node)
page_tree = self.__class__.objects.filter(node__in=node_tree)
page_urls = PageUrl.objects.filter(page__in=page_tree, managed=True, path__isnull=False)
for language, slug in self.urls.values_list('language', 'slug'):
# Use 2 because of 1 indexing plus the fact we need to trim
# the "/" character.
trim_count = len(slug) + 2
sql_func = models.Func(
models.F('path'),
models.Value(trim_count),
function='substr',
)
(page_urls
.filter(language=language, path__startswith=slug)
.update(path=sql_func))
return page_tree
def is_potential_home(self):
"""
Encapsulates logic for determining if this page is eligible to be set
as `is_home`. This is a public method so that it can be accessed in the
admin for determining whether to enable the "Set as home" menu item.
:return: Boolean
"""
# Only root nodes are eligible for homepage
return not self.is_home and bool(self.node.is_root())
def get_absolute_url(self, language=None, fallback=True):
if not language:
language = get_current_language()
with force_language(language):
if self.is_home:
return reverse('pages-root')
path = self.get_path(language, fallback) or self.get_slug(language, fallback) # TODO: Disallow get_slug
return reverse('pages-details-by-slug', kwargs={"slug": path}) if path else None
def set_tree_node(self, site, target=None, position='first-child'):
assert position in ('last-child', 'first-child', 'left', 'right')
new_node = TreeNode(site=site)
if target is None:
self.node = TreeNode.add_root(instance=new_node)
elif position == 'first-child' and target.is_branch:
self.node = target.get_first_child().add_sibling(pos='left', instance=new_node)
elif position in ('last-child', 'first-child'):
self.node = target.add_child(instance=new_node)
else:
self.node = target.add_sibling(pos=position, instance=new_node)
def move_page(self, target_node, position='first-child'):
"""
Called from admin interface when page is moved. Should be used on
all the places which are changing page position. Used like an interface
to django-treebeard, but after move is done page_moved signal is fired.
Note for issue #1166: url conflicts are handled by updated
check_title_slugs, overwrite_url on the moved page don't need any check
as it remains the same regardless of the page position in the tree
"""
assert isinstance(target_node, TreeNode)
inherited_template = self.template == constants.TEMPLATE_INHERITANCE_MAGIC
if inherited_template and target_node.is_root() and position in ('left', 'right'):
# The page is being moved to a root position.
# Explicitly set the inherited template on the titles
# to keep all plugins / placeholders.
template = self.get_template()
self.update_translations(template=template)
# Don't use a cached node. Always get a fresh one.
self._clear_internal_cache()
# Runs the SQL updates on the treebeard fields
self.node.move(target_node, position)
if position in ('first-child', 'last-child'):
parent_id = target_node.pk
else:
# moving relative to sibling
# or to the root of the tree
parent_id = target_node.parent_id
# Runs the SQL updates on the parent field
self.node.update(parent_id=parent_id)
# Clear the cached node once again to trigger a db query
# on access.
self._clear_node_cache()
# Update the urls for the page being moved
# and is descendants.
languages = (
self
.urls
.filter(language__in=self.get_languages())
.values_list('language', flat=True)
)
for language in languages:
if not self.is_home:
self._update_url_path(language)
self._update_url_path_recursive(language)
self.clear_cache(menu=True)
return self
def _clear_placeholders(self, language):
from cms.models import CMSPlugin
placeholders = self.get_placeholders(language)
placeholder_ids = (placeholder.pk for placeholder in placeholders)
plugins = CMSPlugin.objects.filter(placeholder__in=placeholder_ids, language=language)
models.query.QuerySet.delete(plugins)
return placeholders
def copy(self, site, parent_node=None, language=None,
translations=True, permissions=False, extensions=True, user=None):
from cms.models import PageContent
from cms.utils.page import get_available_slug
if not user:
raise ValueError("Since django CMS 4 the page.copy method requires a user argument")
if parent_node:
new_node = parent_node.add_child(site=site)
parent_page = parent_node.item
else:
new_node = TreeNode.add_root(site=site)
parent_page = None
new_page = model_to_dict(self)
new_page.pop("id", None) # Remove PK
new_page["node"] = new_node
# new_page["publisher_public_id"] = None
new_page["is_home"] = False
new_page["reverse_id"] = None
new_page["languages"] = ""
new_page = self.__class__.objects.create(**new_page)
new_page._state = ModelState()
new_page._clear_internal_cache()
# Have the node remember its page.
# This is done to save some queries
# when the node's descendants are copied.
new_page.node.__dict__['item'] = new_page
if language and translations:
page_urls = self.urls.filter(language=language)
translations = self.pagecontent_set(manager="admin_manager").filter(language=language)
elif translations:
page_urls = self.urls.all()
translations = self.pagecontent_set(manager="admin_manager")
else:
page_urls = self.urls.none()
translations = self.pagecontent_set(manager="admin_manager").none()
translations = translations.prefetch_related('placeholders')
for page_url in page_urls:
new_url = model_to_dict(page_url)
new_url.pop("id", None) # No PK
new_url["page"] = new_page
if parent_page:
base = parent_page.get_path(page_url.language)
path = '%s/%s' % (base, page_url.slug) if base else page_url.slug
else:
base = ''
path = page_url.slug
new_url["slug"] = get_available_slug(site, path, page_url.language)
new_url["path"] = '%s/%s' % (base, new_url["slug"]) if base else new_url["slug"]
PageUrl.objects.with_user(user).create(**new_url)
# copy titles of this page
for title in translations.current_content():
new_title = model_to_dict(title)
new_title.pop("id", None) # No PK
new_title["page"] = new_page
new_title = PageContent.objects.with_user(user).create(**new_title)
for placeholder in title.placeholders.all():
# copy the placeholders (and plugins on those placeholders!)
new_placeholder = new_title.placeholders.create(
slot=placeholder.slot,
default_width=placeholder.default_width,
)
placeholder.copy_plugins(new_placeholder, language=new_title.language)
new_page.page_content_cache[new_title.language] = new_title
new_page.update_languages([trans.language for trans in translations])
if extensions:
from cms.extensions import extension_pool
extension_pool.copy_extensions(self, new_page)
# copy permissions if requested
if permissions and get_cms_setting('PERMISSION'):
permissions = self.pagepermission_set.iterator()
permissions_new = []
for permission in permissions:
permission.pk = None
permission.page = new_page
permissions_new.append(permission)
if permissions_new:
new_page.pagepermission_set.bulk_create(permissions_new)
return new_page
def copy_with_descendants(self, target_node=None, position=None,
copy_permissions=True, target_site=None, user=None):
"""
Copy a page [ and all its descendants to a new location ]
"""
if position in ('first-child', 'last-child'):
parent_node = target_node
elif target_node:
parent_node = target_node.parent
else:
parent_node = None
if target_site is None:
target_site = parent_node.site if parent_node else self.node.site
# Evaluate the descendants queryset BEFORE copying the page.
# Otherwise, if the page is copied and pasted on itself, it will duplicate.
from cms.models import PageContent
descendants = list(
self.get_descendant_pages()
.select_related('node')
.prefetch_related(
'urls',
Prefetch('pagecontent_set', queryset=PageContent.admin_manager.all()),
)
)
new_root_page = self.copy(target_site, parent_node=parent_node, user=user)
new_root_node = new_root_page.node
if target_node and position in ('first-child'):
# target node is a parent and user has requested to
# insert the new page as its first child
new_root_node.move(target_node, position)
new_root_node.refresh_from_db(fields=('path', 'depth'))
if target_node and position in ('left', 'last-child'):
# target node is a sibling
new_root_node.move(target_node, position)
new_root_node.refresh_from_db(fields=('path', 'depth'))
nodes_by_id = {self.node.pk: new_root_node}
for page in descendants:
parent = nodes_by_id[page.node.parent_id]
new_page = page.copy(
target_site,
parent_node=parent,
translations=True,
permissions=copy_permissions,
user=user
)
nodes_by_id[page.node_id] = new_page.node
return new_root_page
def delete(self, *args, **kwargs):
TreeNode.get_tree(self.node).delete_fast()
if self.node.parent_id:
(TreeNode
.objects
.filter(pk=self.node.parent_id)
.update(numchild=models.F('numchild') - 1))
self.clear_cache(menu=True)
def delete_translations(self, language=None):
if language is None:
languages = self.get_languages()
else:
languages = [language]
self.pagecontent_set.filter(language__in=languages).delete()
def save(self, **kwargs):
if self.reverse_id == "":
self.reverse_id = None
if self.application_namespace == "":
self.application_namespace = None
created = not bool(self.pk)
from cms.utils.permissions import get_current_user_name
self.changed_by = get_current_user_name()
if created:
self.created_by = self.changed_by
super().save(**kwargs)
def update(self, refresh=False, **data):
cls = self.__class__
cls.objects.filter(pk=self.pk).update(**data)
if refresh:
return self.reload()
else:
for field, value in data.items():
setattr(self, field, value)
return
def update_translations(self, language=None, **data):
if language:
translations = self.pagecontent_set.filter(language=language)
else:
translations = self.pagecontent_set.all()
return translations.update(**data)
def has_translation(self, language):
return self.pagecontent_set.filter(language=language).exists()
def clear_cache(self, language=None, menu=False, placeholder=False):
from cms.cache import invalidate_cms_page_cache
if get_cms_setting('PAGE_CACHE'):
# Clears all the page caches
invalidate_cms_page_cache()
if placeholder and get_cms_setting('PLACEHOLDER_CACHE'):
assert language, 'language is required when clearing placeholder cache'
placeholders = self.get_placeholders(language)
for placeholder in placeholders:
placeholder.clear_cache(language, site_id=self.node.site_id)
if menu:
# Clears all menu caches for this page's site
menu_pool.clear(site_id=self.node.site_id)
def get_child_pages(self):
nodes = self.node.get_children()
pages = (
self
.__class__
.objects
.filter(node__in=nodes)
.order_by('node__path')
)
return pages
def get_ancestor_pages(self):
nodes = self.node.get_ancestors()
pages = (
self
.__class__
.objects
.filter(node__in=nodes)
.order_by('node__path')
)
return pages
def get_descendant_pages(self):
nodes = self.node.get_descendants()
pages = (
self
.__class__
.objects
.filter(node__in=nodes)
.order_by('node__path')
)
return pages
def get_root(self):
node = self.node
return self.__class__.objects.get(node__path=node.path[0:node.steplen])
def get_parent_page(self):
if not self.node.parent_id:
return None
pages = Page.objects.filter(node=self.node.parent_id)
return pages.select_related('node').first()
def get_languages(self):
if self.languages:
return sorted(self.languages.split(','))
else:
return []
def remove_language(self, language):
page_languages = self.get_languages()
if language in page_languages:
page_languages.remove(language)
self.update_languages(page_languages)
def update_languages(self, languages):
languages = ",".join(set(languages))
# Update current instance
self.languages = languages
# Commit. It's important to not call save()
# we'd like to commit only the languages field and without
# any kind of signals.
self.update(languages=languages)
def get_published_languages(self):
return self.get_languages()
def set_translations_cache(self):
for translation in self.pagecontent_set.all():
self.page_content_cache.setdefault(translation.language, translation)
def get_path_for_slug(self, slug, language):
if self.is_home:
return ''
if self.parent_page:
base = self.parent_page.get_path(language, fallback=True)
# base can be empty when the parent is a home-page
path = '%s/%s' % (base, slug) if base else slug
else:
path = slug
return path
def get_url(self, language):
return self.get_urls().get(language=language)
def get_urls(self):
return self.urls.all()
def update_urls(self, language=None, **data):
if language:
page_urls = self.get_urls().filter(language=language)
else:
page_urls = self.get_urls().all()
return page_urls.update(**data)
def get_fallbacks(self, language):
return i18n.get_fallback_languages(language, site_id=self.node.site_id)
# ## PageContent object access
def get_content_obj(self, language=None, fallback=True, force_reload=False):
"""Helper function for accessing wanted / current title.
If wanted title doesn't exist, EmptyPageContent instance will be returned.
"""
language = self._get_page_content_cache(language, fallback, force_reload)
if language in self.page_content_cache:
return self.page_content_cache[language]
from cms.models import EmptyPageContent
return EmptyPageContent(language=language, page=self)
def get_page_content_obj_attribute(self, attrname, language=None, fallback=True, force_reload=False):
"""Helper function for getting attribute or None from wanted/current page content."""
try:
attribute = getattr(self.get_content_obj(language, fallback, force_reload), attrname)
return attribute
except AttributeError:
return None
def get_path(self, language, fallback=True):
"""Get the path of the page depending on the given language"""
languages = [language]
if fallback:
languages.extend(self.get_fallbacks(language))
page_languages = self.get_languages()
for _language in languages:
if _language in page_languages:
language = _language
break
if language not in self.urls_cache:
self.urls_cache.update({
url.language: url for url in self.urls.filter(language__in=languages) # TODO: overwrites multiple urls
})
for _language in languages:
self.urls_cache.setdefault(_language, None)
try:
return self.urls_cache[language].path
except (AttributeError, KeyError):
return None
def get_slug(self, language, fallback=True):
languages = [language]
if fallback:
languages.extend(self.get_fallbacks(language))
page_languages = self.get_languages()
for _language in languages:
if _language in page_languages:
language = _language
break
if language not in self.urls_cache:
self.urls_cache.update({
url.language: url for url in self.urls.filter(language__in=languages)
})
for _language in languages:
self.urls_cache.setdefault(_language, None)
try:
return self.urls_cache[language].slug
except (AttributeError, KeyError):
return None
def get_title(self, language=None, fallback=True, force_reload=False):
"""
get the title of the page depending on the given language
"""
return self.get_page_content_obj_attribute("title", language, fallback, force_reload)
def get_menu_title(self, language=None, fallback=True, force_reload=False):
"""
get the menu title of the page depending on the given language
"""
menu_title = self.get_page_content_obj_attribute("menu_title", language, fallback, force_reload)
if not menu_title:
return self.get_title(language, True, force_reload)
return menu_title
def get_placeholders(self, language):
from cms.models import PageContent, Placeholder
page_content = PageContent.objects.get(language=language, page=self)
return Placeholder.objects.get_for_obj(page_content)
def get_changed_date(self, language=None, fallback=True, force_reload=False):
"""
get when this page was last updated
"""
return self.get_page_content_obj_attribute("changed_date", language, fallback, force_reload)
def get_changed_by(self, language=None, fallback=True, force_reload=False):
"""
get user who last changed this page
"""
return self.get_page_content_obj_attribute("changed_by", language, fallback, force_reload)
def get_page_title(self, language=None, fallback=True, force_reload=False):
"""
get the page title of the page depending on the given language
"""
page_title = self.get_page_content_obj_attribute("page_title", language, fallback, force_reload)
if not page_title:
return self.get_title(language, True, force_reload)
return page_title
def get_meta_description(self, language=None, fallback=True, force_reload=False):
"""
get content for the description meta tag for the page depending on the given language
"""
return self.get_page_content_obj_attribute("meta_description", language, fallback, force_reload)
def get_application_urls(self, language=None, fallback=True, force_reload=False):
"""
get application urls conf for application hook
"""
return self.application_urls
def get_redirect(self, language=None, fallback=True, force_reload=False):
"""
get redirect
"""
return self.get_page_content_obj_attribute("redirect", language, fallback, force_reload)
def _get_page_content_cache(self, language, fallback, force_reload):
def get_fallback_language(page, language):
fallback_langs = i18n.get_fallback_languages(language)
for lang in fallback_langs:
if page.page_content_cache.get(lang):
return lang
if not language:
language = get_language()
# Update page_content_cache from _prefetched_objects_cache if available
prefetch_cache = getattr(self, "_prefetched_objects_cache", {})
cached_page_content = prefetch_cache.get("pagecontent_set", [])
for page_content in cached_page_content:
self.page_content_cache[page_content.language] = page_content
# Reload if explicitly needed or language not in content cache
if force_reload or language not in self.page_content_cache:
for page_content in self.pagecontent_set.all():
self.page_content_cache[page_content.language] = page_content
if self.page_content_cache.get(language):
return language
use_fallback = all([
fallback,
not self.page_content_cache.get(language),
get_fallback_language(self, language)
])
if use_fallback:
# language can be in the cache but might be an EmptyPageContent instance
return get_fallback_language(self, language)
return language
@property
def template(self):
return self.get_page_content_obj_attribute("template")
@property
def soft_root(self):
return self.get_page_content_obj_attribute("soft_root")
def get_template(self, language=None, fallback=True, force_reload=False):
content = self.get_content_obj(language, fallback, force_reload)
if content:
return content.get_template()
return get_cms_setting('TEMPLATES')[0][0]
def get_template_name(self):
"""
get the textual name (2nd parameter in get_cms_setting('TEMPLATES'))
of the template of this page or of the nearest
ancestor. failing to find that, return the name of the default template.
"""
template = self.get_template()
for t in get_cms_setting('TEMPLATES'):
if t[0] == template:
return t[1]
return _("default")
def has_view_permission(self, user):
from cms.utils.page_permissions import user_can_view_page
return user_can_view_page(user, page=self)
def has_view_restrictions(self, site):
from cms.models import PagePermission
if get_cms_setting('PERMISSION'):
restrictions = (
PagePermission
.objects
.for_page(self)
.filter(can_view=True)
)
return restrictions.exists()
return False
def has_add_permission(self, user):
"""
Has user ability to add page under current page?
"""
from cms.utils.page_permissions import user_can_add_subpage
return user_can_add_subpage(user, self)
def has_change_permission(self, user):
from cms.utils.page_permissions import user_can_change_page
return user_can_change_page(user, page=self)
def has_delete_permission(self, user):
from cms.utils.page_permissions import user_can_delete_page
return user_can_delete_page(user, page=self)
def has_delete_translation_permission(self, user, language):
from cms.utils.page_permissions import user_can_delete_page_translation
return user_can_delete_page_translation(user, page=self, language=language)
def has_advanced_settings_permission(self, user):
from cms.utils.page_permissions import (
user_can_change_page_advanced_settings,