rails 4, active record: appending to has_many :through does not create join model anymore?

[glaszig]

hi folks.

on rails 4, can somebody confirm that pushing model instances onto a has_many :through relation does not create the necessary join model anymore?

    class Reader < AR::Base

      belongs_to :post

      belongs_to :person

    end

    class Post < AR::Base

      has_many :readers

      has_many :people, through: :readers

    end

    @post.people << Person.new

so, basically this is not working: http://guides.rubyonrails.org/association_basics.html#has_many-uniq

thanks.

[Anthony Richardson]

You probably need to use "create" and not "new" so there is something to put in the foreign keys.

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[glaszig]

yech. found the culprit. my fault.

lesson learned: don't fuck around by aliasing association accessors.

sorry to bother you.

[Martin Glaß]

anthony, just tried and it works with unsaved instances as well :)

thanks.

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