Hi everyone! I have a "Services" model and I would like to get a QuerySet with all the services filtered based on the distance between the logged user and the service.
I have latitude and longitude about the user logged in and I filter the services based on the computed distance. At the moment I build the QuerySet Service.objects.all() and after that I exclude the services that I don't need, but I think there is a better way to do that. I was thinking to use a Manager. Quoting the docs: "Adding extra Manager methods is the preferred way to add “table-level” functionality to your models. (For “row-level” functionality – i.e., functions that act on a single instance of a model object – use Model methods, not custom Manager methods.)" As a "eternal newbie" I ask you 1) The distance must be computed based on two parameters "long" and "lat". Is that possible to define a manager only for this purpose? Is it a good practice? 2) The computed value is not just useful for the QuerySet, but I need also that on client side so I serialize it and I send it using JSON. Is possible to make sure that the manager attach the field "distance" to the objects in the QuerySet? Thank you! -- Karim N. Gorjux -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CACeuRGUPt5f52oABVifeu2%3DPeYHLAAekrGwbVocvdDGQeyQJgA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
