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jdk
2006 May 19
4
Lookup tables and scaffolding
It occurs to me as a missing feature that there''s no way to indicate a lookup
table relationship (as opposed to other sorts of foreign key relationships)
in Rails and that the scaffolding generator could recognise this lookup and
render a drop-down list automagically for the lookup table.
Say you have an Address and a State, and the State is a lookup table. In
addresses you have
2006 May 20
7
Polymorphic, many-to-many, self-referential data model
No matter what I try I''ve been unable to work how to get this to work with
the cool ActiveRecord helpers. I''m not sure if it''s possible, Josh Susser''s
blog suggests it is, but damned if I can work it out...
I have:
Container which can contain one or more Element. An Element is a polymorph
of either a Container or a Chunk. An Element can exist in one or more