that"s the question. I"ve been looking for it on the Internet for a long time, but I can"t find it.
for example, I want to query
SQL:
select a from atable,btable where atable.id=btable.id
an is the field of atable and b is the field of btable. But I don"t know how to write it with the model class of django. Is there a big god to tell me? be deeply grateful.
your sentence SQL is equivalent to:
select a select b from atable join btable on atable.id=btable.id
find out who's foreign key first, and write
if btable's id is the primary key referencing atable.
from django.db.models import F
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