Rails 2.3.8 has_many：through

Question

I have 3 Tables/Classes

   vectors, b_cells and transfections

They are associated like this

    class BCell
    has_and_belongs_to_many :vectors ( JOIN ) 

    class Transfection
    has_and_belongs_to_many :vectors ( JOIN )

How do I connect b_cells and transfections using the associations? I tried

    class BCell
    has_many :transfections, :through => :vectors

    class Transfection
    has_many :b_cells, :through => :vectors

I am using rails 2.3.8

Answer 1

I think you are having a problem with the model declaration. Can you try this and see if it will work

class BCell < ActiveRecord::Base
    has_many :vectors 
    has_many :transfections, :through => :vectors
end

class Transfection < ActiveRecord::Base
    has_many :vectors
    has_many :b_cells, :through => :vectors
end

class vectors < ActiveRecord::Base
    belongs_to :b_cell
    belongs_to :transfection
end