From: Glen Holcomb <damnbigman@...>
Date: 2007-05-15T02:10:54+09:00
Subject: Re: Rails: Counter problem

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Hi Adam,

Wrong list, you will have far better luck here:

http://groups.google.com/group/rubyonrails-talk

On 5/14/07, Adam42Smith@gmail.com <Adam42Smith@gmail.com> wrote:
>
> Hi. I have a problem with counters in Rails. The situation looks like
> this:
> -3 simple models
>
> class Forum < ActiveRecord::Base
>   has_many :posts
> end
> class Topic < ActiveRecord::Base
>   has_many :posts
> end
> class Post < ActiveRecord::Base
>   belongs_to :topic, :counter_cache => true
>   belongs_to :forum, :counter_cache => true
> end
>
> - In migrations i have declared
>   t.column :posts_count, :integer, :default => 0
>   for Forum and Topic
>
> - Now a simple action
>
> def some_action
>   @post = Post.new(params[:id])
>
>   @forum.posts << @post   # The @forums.posts_count is up by 1
>   @topic.posts << @post   # The @topic.posts_count is _not_ up by 1
> end
>
> Both, the forum_id and topic_id are set correctly in @post, it saves
> into the database and everything else is dandy. But why oh why doesn't
> the @topic.posts_count increment ? (oh, obviously if I change the
> order
> of the two crucial lines the effect will be the same - the instance in
> the second line won't get the posts_count incremented)
>
> Could anyone come up with a solution ? (apart from making the counters
> 'by hand')
>
> --
> AdamS
>
>
>


-- 
"Hey brother christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

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