Loop through ActiveRecord::Associations::CollectionProxy with each
activerecord, ruby
Solution
You probably want to use `map` instead:
page.content.map do |item|
item.content_id
end
`map` (aka `collect`) will iterate through an array and run whatever code you ask it to on the members of the array, one by one. It will return a new array containing the return values for those method calls.
Problem
I have the following models set up with active record 4 (mapping a legacy database) ``` class Page < ActiveRecord::Base self.table_name = "page" self.primary_key = "page_id" has_many :content, foreign_key: 'content_page_id', class_name: 'PageContent' end class PageContent < ActiveRecord::Base self.table_name = "page_content" self.primary_key = "content_id" belongs_to :pages, foreign_key: 'page_id', class_name: 'Page' end ``` The following works fine.... ``` page = Page.first page.content.first.content_id => 17 page.content.second.content_id => 18 ``` however i want to be able to loop though all the items like so ``` page.content.each do |item| item.content_id end ``` but it simply returns the whole collection not the individual field ``` => [#<PageContent content_id: 17, content_text: 'hello', content_order: 1>, #<PageContent content_id: 18, content_text: 'world', content_order: 2>] ``` appears it is a ActiveRecord::Associations::CollectionProxy ``` page.content.class => ActiveRecord::Associations::CollectionProxy::ActiveRecord_Associations_CollectionProxy_PageContent ``` anyone got any ideas? cheers