Rails Pagination with Kaminari with has_many :through Relationship -

i have 3 relevant models. user has_many :photos , belongs_to :dorm, dorm has_many :users , has_many :photos, :through => :users, , photo class belongs_to :users , belongs_to :dorm.

i want paginate photos in dorm kaminari. have in gemfile , ran bundle command.

in dorms_controller:

@dorm=dorm.find(params[:id]) @photos=@dorm.photos.page(params[:page]).per(3) 

and in dorm show view (actually in partial, _index.html.erm rendered in show view):

<%= paginate @photos %> 

this gives me error: undefined method 'page' #<class:0x107483d68>.

i know why doesn't work (shouldn't called on class), don't know how make work...

hrm, strange. should work. made vanilla app action shown above , following models, couldn't reproduce error.

class dorm < activerecord::base   has_many :users   has_many :photos, :through => :users end  class user < activerecord::base   belongs_to :dorm   has_many :photos end  class photo < activerecord::base   belongs_to :user end 

there should root cause in app code. so, track down problem bit more? begin with, following code work in rails console?

@dorm.photos.page(1)