Anybody? On 27 сен, 18:53, Satan Study Django <[email protected]> wrote: > Good day. > To the case. > There are some models (simplified form): > > class Group (models.Model): > name = models.CharField () > > class Person (models.Model): > name = models.CharField () > groups = models.ManyToManyField (Group) > > class Event (models.Model): > name = models.CharField () > groups = models.ManyToManyField (Group) > > The task is to choose the names of all users and events having the > same group. For example: > > Bob - Learning python > Bob - Writing hello world > Peter - Study python > Peter - Writing billing system > > with > > "Learning python" - Groups: 'Students' > "Writing a hello world" - Groups: 'Junior' > "Writing the billing system" - Groups: 'Experienced' > > Bob - Groups: 'Students', 'Junior' > Peter - Groups: 'Students', 'Experienced' > > If we'll try to solve the problem database way, groups would be easier > to store in the form of, for example, char fields, and select with a > simple condition: > > where p.groups = e.groups > > and then it becomes trivial (that is what happened in the past > implementation of the interface). > > At the current moment that logic of the objects must implement to > django, and, faced with a problem I do not see how to solve it any > other way but commonplace 'for'. > I would be glad of any clue, including possible ways to change the > database structure. > > Thanks for your attention.
-- 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.
