Noob: how to pass parameters between pages in v2.0.2?

Rails
1

Hey All,

I’m just starting out w/rails & have a toy app w/just 2 types of
things right now: People and Organizations. Person :belongs_to
organization and Organization :has_many people.

I’ve got scaffold-generated index views for both, which work well
(thanks in part to the kind help I’ve already gotten here). The index
page for organization shows the # of people that currently belong to
each one, and I even got fancy and made that number a hyperlink to the
people/index, w/view code like so:

<%= link_to organization.people.count, "People", :action => :index %>

Now I want to get even fancier, and have people/index show me just
people belonging to the organization whose link was clicked. So I
figured I’d need to pass the people controller the proper organization
id, and have it do a proper Person.find() call.

I got the impression from the AWDWR book that I could just tack on an
extra hash value on my link_to call to pass the parameter, so I edited
the above to say:

<%= link_to organization.people.count, "People", :action => :index, :org_id => organization.id %>

And then put this in PeopleController.index:

if params[:org_id] then
  # raise("params[:org_id] IS defined!")
  @people = Person.find_by_organization(params[:org_id])
else
  @people = Person.find(:all)
end

But it seems that my parameter is not getting passed. If I dump a
params.inspect to the index page I see:

{“action”=>“index”, “controller”=>“people”}

Soooo… can anybody tell me the right way to move a parameter from
one page to another?

Thanks!

-Roy

2

On 27 Feb 2008, at 02:10, Roy P. wrote:

each one, and I even got fancy and made that number a hyperlink to the
people/index, w/view code like so:

<%= link_to organization.people.count, "People", :action => :index %>

=> :index, :org_id => organization.id %>

Your problem here is that if you pass 2 parameters to link_to like
that, it’s going to assume that the first is some text and that the
second is the url (or part of it)

<%= link_to organization.people.count, :controller =>
'people", :action=> :index, :org_id => organization.id %>
should do the trick.

Fred

3

Sure enough–that fixes it. Thanks!

On Feb 26, 10:36 pm, Frederick C. [email protected]