Hey Nik, Thanks for the detailed explanation. It is clear now.
Thanks, Smaran On Tue, Jul 3, 2012 at 5:47 PM, Nikolas Stevenson-Molnar < [email protected]> wrote: > Hi Smaran, > > Yes, by full path, I mean, for example, 'polls.urls'. And yes, it is a > string. Django interprets it as a module path when it builds up the URLs. > It's the same thing that happens in the polls.urls module when mapping the > URL patterns to functions. The functions are all quoted as well (in the > tutorial). In this case, you *don't* need to give the full path, since > the 'polls.views' part is specified as the first argument of patterns. For > example, looking at the last code snippet on the page you linked to, you > could write the URL patterns in a few different ways: > > 1) as-is > 2) with no 'prefix' given: > urlpatterns = patterns('', > url(r'^$', 'polls.views.index'), > ... > ) > > 3) with a partial prefix: > urlpatterns = patterns('polls', > url(r'^$', 'views.index'), > ... > ) > > 4) by passing in the function itself, rather than a string > from polls.views import index > ... > urlpatterns = patterns('', > url(r'^$', index), > ... > ) > > This notion of using strings instead of actual references is used > elsewhere too. For example, if you need to create a ForeignKey field in one > model that references a model defined later in the same file: > https://docs.djangoproject.com/en/dev/ref/models/fields/#foreignkey (see > first ForeignKey code example). It's also used in the settings file (all > the apps and middleware classes are provided as strings; typically nothing > is imported in the settings module). > > Does that make sense at all? In short, in many places where Django > requires a function, class, or module, you can provide a direct reference > to it, or provide a string instead. You'll still get an error if the module > path in that string is not correct. > > _Nik > > > On 7/3/2012 5:14 PM, Smaran Harihar wrote: > > Hey Nik, > > Thanks for the reply. When you say, provide full path for the lazy > quoted version, do you mean 'polls.url' ? > Is that not relative path? > > Also having the path in quotes 'polls.url', is it not a string? > > Thanks, > Smaran > > On Tue, Jul 3, 2012 at 5:02 PM, Nikolas Stevenson-Molnar < > [email protected]> wrote: > >> If I understand correctly, you're asking about the difference between >> include('polls.urls') and include(admin.site.urls)? Django will often let >> you reference modules, functions, and classes 'lazily', meaning you don't >> need to import them first. You could use the unquoted version for polls as >> well, it would look something like >> >> import polls >> ... >> url(r'^polls/', include(polls.urls)) >> >> *or* >> >> from polls import urls as poll_urls >> ... >> url(r'^polls/', include(poll_urls)) >> >> Note that if you're using the 'lazy', quoted version you always need to >> provide the full path. >> >> _Nik >> >> >> On 7/3/2012 4:24 PM, Smaran Harihar wrote: >> >> Hi Djangoers, >> >> I just completed the tutorial 3 and got a little confused on the last >> section<https://docs.djangoproject.com/en/dev/intro/tutorial03/#decoupling-the-urlconfs>of >> the tutorial, >> >> urlpatterns = patterns('', >> url(r'^polls/', include('polls.urls')), >> url(r'^admin/', include(admin.site.urls)),) >> >> In this for the polls app, we are assigning the urls.py path in the >> quotes 'polls.urls' >> but for admin we are not? >> >> So what is the difference and being it quotes how does it still pick up >> the path? Does django not consider it to be simply string. >> >> -- >> Thanks & Regards >> Smaran Harihar >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/django-users?hl=en. >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/django-users?hl=en. >> > > > > -- > Thanks & Regards > Smaran Harihar > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/django-users?hl=en. > > > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/django-users?hl=en. > -- Thanks & Regards Smaran Harihar -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
