How to truncate a join table in rails?

Question

To truncate an ActiveRecord table, I can do

Category.destroy_all

or

Post.destroy_all

How does one go about truncating a categories_post table?

Answer 1

I guess your join table is called categories_posts. CategoryPost.destroy_all should work, if not, maybe you need to specify the table name in the model (CategoryPost)

set_table_name "categories_posts"

Update, there isn't a CategoryPost model, so it should be created:

class CategoryPost < ActiveRecord::Base
  set_table_name "categories_posts"
end