rails nested resource and routes for initialized resource

Question

I have a problem with the normal way rails operates when using nested forms / resources and routing.

I have two tables, Words and Definitions...

Words have many definitions, but I do not create a Word until it has at least one definition.

Everything on the model and controller end works but I cannot figure out how to handle the form helpers.

<%= semantic_form_for [@word, @definition] do |f| %>

This works perfectly but only if @word actually exists and is not a new UNSAVED record. IE in the controller I am doing a find_or_initialize_by call for Word then building a definition off of that.

<%= semantic_form_for [:word, @definition] do |f| %>

This words but only if the word doesn't exist. IE if I try to edit using this construction I get an odd url (which doesn't work). words/12345/definition/12345

I tried using the url_for helper but had similar results as above...

Any other ideas?

Dieseltime · Accepted Answer · 2012-02-25 02:50:50Z

1

Mongoid doesn't initialize embedded documents by default. You need to build them yourself most likely with a callback in your Word model:

after_initialize :build_definition

def build_definition
  self.definitions.build unless self.definitions.any?
end

answered Feb 25, 2012 at 2:50

Dieseltime

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1 Comment

holden Over a year ago

It works, but I noticed later it causes a lot of other problems too. I can no longer use @word.definitions.blank?

fjyaniez · Accepted Answer · 2012-02-23 14:55:13Z

0

If you wanna stay CRUD and allow definitions to be created before words, you must duplicate routes for definitions, one inside words and one outside, so you can do:

<%= semantic_form_for [@definition] do |f| %>

answered Feb 23, 2012 at 14:55

fjyaniez

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