ruby on rails - How can I count with complicated conditions? -


community has_many :codes
code belongs_to :community

user has_many :codes
code belongs_to :user

user has_one :profile profile belongs_to :user

@community.codes.users.count

this returns number of users code belonging community.

code has column called visible boolean
profile has column called notification boolean

what if want count number of users code true on visible, belonging community? also, user.profile.notification has true

is possible count that?

i mean, i'd obtain number of count that's calculated below.
want in 1 line.

@community.codes.each |code|     if code.visible && code.user && code.user.profile.notification         count = count + 1     end end

this solves the number of users code true on visible, belonging community? it's ignoring condition user.profile.notification => true

user.joins(:codes => :community).where("codes.visible=? , communities.id=?", true, @community.id).count


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