Hi Fred,
I appreciate your quick reply.
Here's an example of an HTML tag after I used fields_for() (code
pasted below*):
<input id="candle_flavor" name="candle[flavor]" size="30" type="text"
value="Vanilla" />
How can I change edit_all.html.erb code to get:
id="candle[id][flavor]" name="candle[id][flavor]"
Thanks,
Supraja
----
* edit_all.html.erb
<% form_tag(:action => "update_candle_line") do %>
<% for @candle in @candles %>
<p>
<% fields_for @candle do |can| %>
<%= can.text_field(:flavor) %>
<% end %>
</p>
<% end %>
<p>
<%= submit_tag "Update" %>
</p>
<% end %>
On Nov 19, 11:07 am, Frederick Cheung <[EMAIL PROTECTED]>
wrote:
> On 19 Nov 2008, at 16:25, Supraja wrote:
>
>
>
> > Hi everyone,
>
> > I'm trying to update attributes in acollectionpassed to form_tag.
> > However my syntax for extracting values from the params hash results
> > in this exception:
>
> > undefined method `keys' for ["Vanilla", "Rose", "Cranberry"]:Array
>
> > So it appears I am trying to call keys on an array of "flavor"
> > attribute values, rather than extracting "Candle" object id keys from
> > the params hash. I have included the code from the view and controller
> > below.
>
> If you call your parameters candle[] then you will indeed get back a
> single array parameter
>
> if you wanted a hash keyed by id then you'd need parameters of the
> form candle[some_id][flavor]. fields_for etc... may be able to help
> you create those parameter names rather than having to bash them in by
> hand.
>
> Fred
>
> > Thanks for taking the time to read this. I appreciate any specific
> > suggestions, as well as any resources that explain the intricacies of
> > params.
>
> > Thank You!
> > Supraja
>
> > ----
> > edit_all.html.erb:
> > <% form_tag(:action => "update_candle_line") do %>
> > <% for @candle in @candles %>
> > <%= text_field_tag("candle[]", @candle.flavor) %>
> > <% end %>
>
> > <%= submit_tag "Update" %>
> > <% end %>
>
> > ----
> > edit_all_controller.rb:
> > def update_candle_line
> > Candle.update(params[:candle].keys, params[:candle].values)
> > redirect_to_index("Flavors updated!") # private method of
> > controller
> > end
--~--~---------~--~----~------------~-------~--~----~
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 [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---
