/ Ruby on Rails
/
method

joins

joins(*args)
public

No documentation available.

# File activerecord/lib/active_record/relation/query_methods.rb, line 45
    def joins(*args)
      args.flatten!
      clone.tap {|r| r.joins_values += args if args.present? }
    end

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edivandecastro ยท Jan 18, 2012

I came across the following situation An article has a history of friendly url being that the foreign key that represents the value of the article's id in the table is called Friend url_id then in that case:

Article.joins("INNER JOIN friends ON articles.id = friends.url_id").where("friends.url like ? ", url)

if the column url_id was renamed for artigo_id would be easier

Article.joins(:friend).where("friends.url like ? ", url)