Some random Django tips

My lightning talk from DjangoCon Chicago 2013.

Transcript

1. Some random Django tips Adrian Holovaty, DjangoCon Chicago 2013
4. <body> {% if USER %} Logged in as {{ USER.username }} {% else %} <a href=”/login/”>Log in</a> {% endif %} {% for item in items %} <p>{{ item.name }}</p> {% endfor %} </body>
5. <body> {% if USER %} Logged in as {{ USER.username }} {% else %} <a href=”/login/”>Log in</a> {% endif %} {% for item in items %} <p>{{ item.name }}</p> {% endfor %} </body>
6. Template Rendered to HTML Sent to user
7. Template Template Rendered to HTML Rendered into another template Rendered to HTML (middleware) Sent to user Sent to user
8. <body> {% raw %} {% if USER %} Logged in as {{ USER.username }} {% else %} <a href=”/login/”>Log in</a> {% endif %} {% endraw %} {% for item in items %} <p>{{ item.name }}</p> {% endfor %} </body>
9. gist.github.com/adrianholovaty
10. qs = Song.objects.filter(artist=‘Django’) if request.user: qs = qs.filter(user_id=request.user.id)
11. qs = Song.objects.filter(artist=‘Django’) if request.user: qs = qs.filter(user_id=request.user.id) kwargs = {‘artist’: ‘Django’} if request.user: kwargs[‘user_id’] = request.user.id qs = Song.objects.filter(**kwargs)
12. urlpatterns = patterns(‘’, # ... (r'^(yt|pro)/([-_\w]{1,35})/api/$', views.song_api), (r'^(yt|pro)/([-_\w]{1,35})/edit/$', views.song_edit_form), (r'^(yt|pro)/([-_\w]{1,35})/clear-bars/$', views.clear_bars), (r'^(yt|pro)/([-_\w]{1,35})/delete/$', views.song_delete), )
13. urlpatterns = patterns(‘’, # ... (r'^(?P<src>yt|pro)/(?P<sid>[-_\w]{1,35})/', include(patterns('', (r'^api/$', views.song_api), (r'^edit/$', views.song_edit_form), (r'^clear-bars/$', views.clear_bars), (r'^delete/$', views.song_delete), ))), ) urlpatterns = patterns(‘’, # ... (r'^(yt|pro)/([-_\w]{1,35})/api/$', views.song_api), (r'^(yt|pro)/([-_\w]{1,35})/edit/$', views.song_edit_form), (r'^(yt|pro)/([-_\w]{1,35})/clear-bars/$', views.clear_bars), (r'^(yt|pro)/([-_\w]{1,35})/delete/$', views.song_delete), )
14. class Track(models.Model): # ... version = models.IntegerField() def cache_key(self): return ‘track:{0}.{1}’.format(self.id, self.version)
16. control+click