Django: CBV based navigation

A lightning talk about django-tabination (http://github.com/dbrgn/django-tabination) at Djangocon Zürich, 2012.

Nested tabs have since been implemented and released in v0.2.0.

Transcript

1. CBV based navigation Danilo Bargen Djangocon Zürich, 2012/06/05
2. Setup $ pip i ns t a ll django−tabination
3. Creating views from tabination . views import TabView class SpamTab(TabView ) : _is_tab = True tab_id = ’spam’ tab_group = ’mainnav ’ tab_label = ’Spam’ template_name = ’spam. html ’
4. Another view class HamTab(TabView ) : _is_tab = True tab_id = ’ham’ tab_group = ’mainnav ’ tab_label = ’Ham’ template_name = ’ham. html ’
5. urls.py urlpatterns = patterns ( ’ ’ , url ( r ’^spam/$ ’ , views .SpamTab. as_view ( ) ) , url ( r ’^ ham/$ ’ , views .HamTab. as_view ( ) ) , )
6. Spam Template
7. Ham Template
8. Navigation Template blocks/tabnavigation.html {{ tabs }} and {{ current_tab_id }}
9. CSS #tab_navigation l i . active a { font−weight : bold ; color : red ; }
10. Result
11. DRY? class SpamTab(TabView ) : _is_tab = True tab_id = ’spam’ tab_group = ’mainnav ’ tab_label = ’Spam’ template_name = ’spam. html ’ class HamTab(TabView ) : _is_tab = True tab_id = ’ham’ tab_group = ’mainnav ’ tab_label = ’Ham’ template_name = ’ham. html ’
12. DRY! class BaseTab(TabView ) : tab_group = ’mainnav ’ class SpamTab(BaseTab) : _is_tab = True tab_id = ’spam’ tab_label = ’Spam’ template_name = ’spam. html ’ class HamTab(BaseTab) : _is_tab = True tab_id = ’ham’ tab_label = ’Ham’ template_name = ’ham. html ’
13. Extending BaseTab class BaseTab(TabView ) : tab_group = ’mainnav ’ tab_classes = [ ’main−navigation−tab ’ ] def get_context_data ( self , **kwargs ) : context = super(BaseTab, self ) . get_context_data (**kwargs) context [ ’spam’ ] = "SPAM −EVERYWHERE! " return context
14. Visibility control class HiddenTab(BaseTab) : _is_tab = True tab_id = ’hidden ’ template_name = ’hidden . html ’ # look mah, no tab_label !
15. Visibility control class SecretTab(BaseTab) : _is_tab = True . . . @property def tab_visible ( self ) : current_tab = self . current_tab user = current_tab . request . user return user . is_authenticated ()
16. Nice things Implicit registry Extensible Flexible Mixins
17. Not so nice things Metaclass magic CBVs, Complexity Other tab classes are instantiated but not dispatched Currently no support for nested tabs
18. Ugly things Ticket #16074: Generic mixins won’t work before Django 1.5
19. Thanks Github: http://github.com/dbrgn/django-tabination Docs: http://django-tabination.readthedocs.org/ Slides: https://speakerdeck.com/dbrgn/django-cbv-based- navigation Twitter: @dbrgn Github: @dbrgn