is it possible to implement a recursive foreign key association like
that?
i'm writing a vocab app, where i want the vocab table to have an id
and two foreign keys, word1 and word2.
the word table will have an id, a word-string, and a language
i'm trying to do this as follows:
class Vocab < ActiveRecord::Base
belongs_to :word
belongs_to :word
class Word < ActiveRecord::Base
has_many :vocabs
has_many :words, :through => :vocabs
but it doesn't work. I'm really new to rails and ruby.
Vocab must have two word fields (eg the default word_id and word_two_id)
class Vocab ...
belongs_to :word
belongs_to :word_two, :foreign_key => :word_two_id
class Word ...
has_many :vocabs # referencing the first belongs_to on word_id
has_many :vocab_twos, :foreign_key => :word_two_id # only if you need
it...
has_many :words, :through => :vocabs # or :vocab_twos
not 100% sure that's exact, but something on that line...