Someone wrote here that nil :include results are cached with has_one
association in edge rails. I can’t get edge rails at the moment, so
could anybody answer please if nil results are cached with belongs_to
associations. This means that when u perform find with :include =>
belongs_to_association and the result of generated LEFT OUTER JOIN is
nil, rails doesn’t generate sql query SELECT * FROM
when using method found_object.belongs_to_association
At the moment I have to use query like this in my model to get the same
result:
def self.get_associations( id, association )
find( :all,
:joins => “JOIN #{association} ON #{association}.key =
model_table._key”,
:include => association,
:conditions => [ “model_table.key = ‘?’”, id ],
)
end
And I have to run it in a iteration for each association instead of
selecting all associations in one query :((
Thanks,
Dmitry