Rails - Feb 2007 - Dynamically uploading a list that's already in a form

I have the classic case of: Posts, and Categories. When the user submits
a post, he has a drop-down list of categories. I want to put a "Add
category" link next to the list of categories.

This is already inside a form, so a "link_to_remote" that creates a
small AJAX form inside the "submit post" form will not work because
that
will mean to embed a form in another form.

I can popup a window that at the end refreshes the parent window or go
to a page where the user can add categories and redirect at the submit
post, but that seems so ten years ago.

Can anybody enlighten me on what''s the "best practice" way to
update
this categories list in a form? The web 2.0?

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Has anyone found a solid solution to this? This would be good for
usability.

On Feb 25, 3:07 pm, Constantin Gavrilescu <rails-mailing-l...@andreas-
s.net> wrote:
> I have the classic case of: Posts, and Categories. When the user submits
> a post, he has a drop-down list of categories. I want to put a "Add
> category" link next to the list of categories.
>
> This is alreadyinsideaform, so a "link_to_remote" that creates a
> small AJAXforminsidethe "submit post"formwill not work because
that
> will mean to embed aformin anotherform.
>
> I can popup a window that at the end refreshes the parent window or go
> to a page where the user can add categories and redirect at the submit
> post, but that seems so ten years ago.
>
> Can anybody enlighten me on what''s the "best practice"
way to update
> this categories list in aform? The web 2.0?
>
> --
> Posted viahttp://www.ruby-forum.com/.

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ebrad wrote:
> Has anyone found a solid solution to this? This would be good for
> usability.
> 
Since I didn''t got an answer, I''ve done it the way I thought
best: I
made a "false popup" with a div over the form. I used the Redbox
plugin
for that.

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Yes, that''s the way I wanted to do it too, but Redbox was putting the
hidden popup div inside the main form, which I coudn''t get to work.
Do you have an example that you could post?

Cheers

Brad W.

On Mar 20, 3:14 pm, Constantin Gavrilescu <rails-mailing-l...@andreas-
s.net> wrote:
> ebrad wrote:
> > Has anyone found a solid solution to this? This would be good for
> > usability.
>
> Since I didn''t got an answer, I''ve done it the way I
thought best: I
> made a "false popup" with a div over theform. I used the Redbox
plugin
> for that.
>
> --
> Posted viahttp://www.ruby-forum.com/.

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ebrad wrote:
> Yes, that''s the way I wanted to do it too, but Redbox was putting
the
> hidden popup div inside the main form, which I coudn''t get to
work.
> Do you have an example that you could post?
> 
> Cheers
> 
> Brad W.
> 
Put a div named however you want _outside your form_.
In the form, use the :update => ''div_id'' parameter. I used
the redbox
convention of naming the div.

Copy/pasted from my code:
<%= link_to_remote_redbox ''Edit Container'', :update => 
''hidden_content_edit_container_popup'',
            :url => {:action => ''edit_container_popup'',
:pin =>
container.pin } %>

Then, you need to edit redbox_helper.rb. You need to get rid of all that 
shit with "id" "hidden_id", and use your variable that you
given in
:update.
You also need to tell redbox not to generate the div for you. So you are 
left with just two lines of code.


  def link_to_remote_redbox(name, link_to_remote_options = {}, 
html_options = {})
    link_to_remote_options = 
redbox_remote_options(link_to_remote_options, 
link_to_remote_options[:update])
    return link_to_remote(name, link_to_remote_options, html_options)
  end

Restart the server, and test. It works for me.

I have the dev website on a subdomain of www.apluscompuservices.com (btw 
- dreamhost for rails is really slow). I''m not sure if my client like
an
"early launch" so if interested about the url, email me at 
costi-X/hw4M8QVluaBVVFIY0YhDj6SVQI9JRA@public.gmane.org

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In my app I simply have a submit_to_remote within the larger form...
no need for a nested form. It submits the entire form including the
other fields but I only read the category[:name] param when I receive
it in my CategoriesController#create action.

Inside a larger form...
  <%= text_field_tag ''category[name]'' %>
  <%= submit_to_remote ''add_category'',
''Add'', :url => categories_path
%>

I belive there is a :submit parameter available for submit_to_remote
that should specify which field(s) to submit instead of the whole
form, but I haven''t played with that. (See the API doc for
link_to_remote: as I understand it, submit_to_remote uses the same
options.)


On Feb 25, 12:07 pm, Constantin Gavrilescu <rails-mailing-l...@andreas-
s.net> wrote:
> I have the classic case of: Posts, and Categories. When the user submits
> a post, he has a drop-down list of categories. I want to put a "Add
> category" link next to the list of categories.
>
> This is already inside a form, so a "link_to_remote" that creates
a
> small AJAX form inside the "submit post" form will not work
because that
> will mean to embed a form in another form.

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