Hi,
quite new to rails and ruby… so still wondering how does it
work… 
i have three tables structured as follow:
- categories
- recipes
- steps
where
steps belongs_to recipe
recipes belongs_to category
and
category has_many recipes
recipe has_many steps
i’ve created the standard scaffold for the three above… everything
went ok,
i’ve modified the models for the constraints on the FKs, i’ve modified
the views
to add a select dropdown to show in the recipe edit/new form the
categories, and
in the step edit/new form the recipes.
in the _form.rhtml for recipes i’ve:
<%= select(“recipe”, “category_id”, Category.find(:all).collect {|c|
[c.name, c.id] }) %>
and in case of editing it shows the right category preselected.
in the _form.rhtml for steps i’ve:
<%= select(“step”, “recipe_id”, Recipe.find(:all).collect {|c|
[c.title, c.id] }) %>
in this case the preselection doesn’t work…
now to create a step inside a recipe i’ve a link in the main recipe
edit/show page like that:
<%= link_to “Create new Step”, {:controller => “step”, :action =>
“new”, :recipe_id => @recipe} %>
that create a link like this one (assuming i’m viewing the recipe
id#2):
http://localhost:3000/step/new?recipe_id=2
hope i’m clear enough… how all this can works? what i’m doing wrong?
what’s the logic to follow?
thanks for any suggestion
really appreciated.
KR,
Pingala