Ruby on Rails

On Friday, January 24, 2014 7:25:02 PM UTC+1, Martin Sloan wrote:
> Hello,
>
>
>
> My issue is that after I migrate this file, when I try to make an association between the article and category object (article.categories << category) it spits an error that article_id does not exist in articles_categories table.  It makes sense to me since the references above do no have _id appended in the class.  If I change the class to the following, creating the relationship between article and category works fine:
>

That should work - t.references should add the _id to the column name for you. What columns did this add? Are you sure you didn't run the migration before you had finished editing it?

Fred


>
>
> class CreateArticlesCategories < ActiveRecord::Migration
>
>   def change
>
>     create_table :articles_categories, :id=> false do |t|
>
>       t.integer :article_id
>
>       t.integer :category_id
>
>     end
>
>   end
>
>   def self.down
>
>     drop_table :articles_categories
>
>   end
>
> end
>
>
> My question is, how can I get the 't.references' format to work so that AR looks for an 'articles' and 'categories' column, instead of the same with _id appended?
>
>
> Thanks

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