Urgghhh - Newbie help needed to stop me giving up on Rails.
I have 3 nested models.
Recipe->RecipeParts->RecipeIngredients (to the ingredients index so
maybe 4 levels)
class Recipe < ActiveRecord::Base
has_many :recipe_parts
accepts_nested_attributes_for :recipe_parts
class RecipePart < ActiveRecord::Base
belongs_to :recipe
has_many :recipe_ingredients
has_many :ingredients, :through => :recipe_ingredients
accepts_nested_attributes_for :recipe
class RecipeIngredient < ActiveRecord::Base
belongs_to :recipe_part
belongs_to :ingredient
I'm trying to write an edit page for Recipe that includes a list of
RecipeParts - and within that a list of RecipeIngredients (each as a
select list)
<h1>Editing recipe</h1>
<% form_for(@recipe) do |recipe_form| %>
<% recipe_form.fields_for :recipe_parts do |recipe_part_form| %>
<% recipe_part_form.fields_for :recipe_ingredients do |rcp_ing|
%>
<p><%= rcp_ing.collection_select( :name,
@ing_list_for_select,:id, :name) %></p>
<% end %>
<p><%= recipe_part_form.text_field :title %></p>
<p><%= recipe_part_form.text_field :description %></p>
<% end %>
<%= link_to "Add Part", {:controller => "recipes",:action =>
"add_recipe_part", :id => @recipe.id} %>
<%= recipe_form.submit "Update" %>
<% end %>
<%= link_to 'Show', @recipe %> |
<%= link_to 'Back', recipes_path %>
The multiple RecipeParts list correctly, but within each part I get 1
selection for the ingredients only, despite the data having a mixture
of 0-3 ingredients for the various parts.
So - my recipe_part_form.fields_for line doesn't seem to be iterating
over the recipe_ingredients properly , and I can't work out why - I
think I'm using the identical structure that I did for the RecipeParts
- which works fine.
Secondly - the collection_select isn't giving me a correct Selected
item - but this could be due to the first problem perhaps.
Sorry if the post is too long/stupid/wrong but Rails/Ruby is proving
to be (BY FAR) the hardest and most obtuse environment I've tried
learning in almost 30 years of programming. After almost 3 months of
online tutorials,books, reading forums etc and experimentation I can't
understand just how little I can get working in Rails.
Ian
--
You received this message because you are subscribed to the Google Groups "Ruby
on Rails: Talk" group.
To post to this group, send email to rubyonrails-t...@googlegroups.com.
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.
