If all comment have to have a park and user. I would have a ForeignKey to Park and User in the Comments model, and no Foreign key in the Parks model.
As such a comment will always need to be linked to an existing park and user object, but a park can be created without needing a comment. JD On Sunday, May 13, 2012 7:53:58 PM UTC-6, psychok7 wrote: > > yes, like a park doesn't have to have comments, but all the comments must > have an associated park and user all the time. > > what is the django syntax for me to achieve this? > > On Monday, May 14, 2012 2:49:18 AM UTC+1, jondykeman wrote: >> >> As far as I understand it the ForeignKey will have to be unique=True and >> null=False. >> >> I want to get a better sense of what you are trying to achieve. Is it >> that you want to link comment and park only some of the time? >> >> JD >> >> On Sunday, May 13, 2012 7:41:39 PM UTC-6, psychok7 wrote: >>> >>> so i have this 2 models (Comment and Park) >>> >>> Comment has a foreign key to USER and PARK >>> >>> PARK has a foreign key to Comment >>> >>> my question is, isn't there going to be a deadlock if i don't have a >>> comment or a park created? i mean , in order to create a Park i need to >>> have a comment, and in order to create a comment i need a park and a user. >>> >>> is there a way for me to fix my problem? like allowing the foreign key >>> to be null or something like that? >>> >>> thanks in advance >>> >> -- You received this message because you are subscribed to the Google Groups "Django users" group. To view this discussion on the web visit https://groups.google.com/d/msg/django-users/-/ArUqOsM142QJ. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
