Rails - Sep 2007 - Updating postitions in an acts as list model, with tet fields...

Hey all.

I''m trying to copy this example I found, which I''m assuming no
longer
works.... that or I''m stupid...  I want to have the position for each
"row" show up ina  box, with a "update position" button that
submits
the form, and updates the position... in retropect I shuld have used
the Draggable effect in Scriptaculous, it would have been faster.
Anyway, now I''m wondering how I would do this...  Any help would be
great.

I get a parameter that holds everything I want

{"commit"=>"Update Positions",
"rate_group_additional_rate"=>{"1488"=>{"position"=>"6"},
"948"=>{"position"=>"1"},
"949"=>{"position"=>"2"},
"1396"=>{"position"=>"5"},
"950"=>{"position"=>"3"},
"951"=>{"position"=>"4"}}}

where rate_group_additional_rate is the model''s position I want to
upgrade.
________________________________________________________________

http://lists.rubyonrails.org/pipermail/rails/2005-February/002489.html

class PurchaseOrdersController < ApplicationController
  def new
    @purchase_order =
PurchaseOrder.new(@params[''purchase_order''])
    @order_items = @purchase_order.items
  end
end

Then, in your view (new.rhtml, for example):

<% @order_items.each do |@order_item| %>
<%= text_field "order_item[]", "name" %>
<%= text_field "order_item[]", "price" %>
... etc ...
<% end %>

The trailing square brackets after the object name (order_item[])
tells Rails to automatically add the index ("id" field) of that
order_item to the form element (a text field in this case).  So you''ll
get HTML like this, for example:

<input type="text" name="order_item[33][name]" ... >
<input type="text" name="order_item[33][price]" ... >

<input type="text" name="order_item[39][name]" ... >
<input type="text" name="order_item[39][price]" ... >

This is especially handy for the new 0.9.5 "update" method which will
take a hash of hashes and update the correct IDs:

def create
   OrderItem.update @params[''order_item''] #Updates both items
33 and
39
end
________________________________________________________________

The first part works great, I can''t seem to get my head around how to
update all the  "Order Items" in this case.  When I type the exmple as
it is below, I get a "wrong number of arguments (1 for 2)" error.


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