Help: restful and ajax call

Rails
1

After I thought this was fixed I found out that it wasn’t.
What i want to do is give the user the ability to add additional
text_fields
to their form.
I’ve created the calls and forms but let me show what’s going on:

In the form:
<%= link_to_remote “[+]”,
:update => ‘xtratitle’,
:url => {:action => “addtfield”}
%>
…
<% end %>

# here is the div for the
update
(which works when …keep reading)

In the controller -
def addtfield
render(:partial => ‘txtfield’)
end

So here is the where the problem seems to be:
In the controller I have a
before_filter :find_candidate

private
def find_candidate
@candidate_id = params[:candidate_id]
redirect_to candidate_url unless @candidate_id
@candidate = Candidate.find(@candidate_id)

When it’s enabled - and I try the link_to_remote I get this error:

ActiveRecord::RecordNotFound in CanpositionsController#addtfield
Couldn’t find Candidate without an ID

If I disable the before_filter (which is obviously not the right
solution)
Then it gets me in the create or update code for not having the
@candidate_id so db operations can’t take place.

I thought that since I was only adding a field into the form the form
should
handle this candidate_id , not sure.

Any suggestions ?
Stuart

–

2

Stuart,

Adding a field is a separate action, so you’re going to have to let
your controller know what you’re doing. Add :candidate_id =>
@candidate.id in your :url hash, change your before_filter to not
include the addtfield action, use the session or flash, do something.

And I don’t know the specifics of your page layout, but keep in mind
that update means replace_html. If you want to append something, use
:position.

–
-yossef

3

Thank you Yossef.
It is working now , however I believe adding the candidate_id to the
link_to_remote hash has any effect
url => {:action => “addtfield”, :candidate_id => @candidate.id}
I only say that cause I added a condition in the action based on the
candidate_id and it had no effect.
Unless I need to add more braces , which I haven’t tried yet.

Stuart

On 10/29/06, Yossef M. [email protected] wrote:

that update means replace_html. If you want to append something, use
:position.

–
-yossef

–

4

On Oct 29, 2006, at 6:40 AM, Dark A. wrote:

…
<% end %>

# here is the div for the
update (which works when …keep reading)

In the controller -
def addtfield
render(:partial => ‘txtfield’)
end

Hey Stuart-

	Ok so you don't need an ajax call for this it is overkill. All you

really need is some javascript to add a new form element. So here is
a js function that will insert a new text_field when you click a link.

<% form_for(:whatever, :url => whateverss_path) do |f| %>
<%= text_filed ‘whatever’, ‘foo’ %>

<%= link_to_function “[+] add”, “addNewTextField(‘buttons_info’,
‘canlocation’, ‘city’)” %>

<%= submit_tag "Submit" %>
<% end %> 
Have fun with it.

– Ezra Z.
– Lead Rails Evangelist
– [email protected]
– Engine Y., Serious Rails Hosting
– (866) 518-YARD (9273)

5

I also have another related question to this -
Having a weird behaviour with my action :

def addtfield
user_title_counts = Cantitle.count(:all, :conditions => ["user_id

?", current_user.id])
if user_title_counts == 3
flash[:notice]= “Maximum 3 allowed”
else
render(:partial => ‘txtfield’)
end
end

Problem is that it’s not sending a flash notice but it’s throwing an
error
looking for addtfield.rhtml ?

Stuart

On 10/29/06, Dark A. [email protected] wrote:

And I don’t know the specifics of your page layout, but keep in mind

–
Dark ambient - Wikipedia

–