ruby on rails - Removing redundant queries using Active Record -

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the following code works, runs far many sql statements liking;

user.includes([:profile,:roles]).select("id, email, created_at, confirmed_at, countries.name").find_in_batches |users|          users.map{|u| # in here access profile.country.name}  end

what meant grab user information along profile information , put csv format.

inside .map calling profile.country.name coming in fine rails running sql call find name, want capture information in initial lookup.

my issue because country linked profile , not user can't add .includes because doesn't see linkable table. there can force includes join table linked profile?

the relevant model information below;

user:

has_one  :profile, dependent: :destroy

profile:

belongs_to :user belongs_to :country

country:

has_many :profiles

you should able include country in original query nesting under profile in .includes call:

user.includes( {:profile => [:country], :roles} )

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