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James Ricci

2006-Jan-18 03:56 UTC

[Rails] NOOB Ajax question: handling form input

Hi,

 

I was trying to modify how a standard edit form works so I could use Ajax to
truncate a zip code field which became too long as the user is entering the
value. The form was generated by the generate scaffold script. The form is
filled with default data taken from the current record. I coded the
following changes to a field in the _form.rhtml file:

 

<%= text_field ''wh_config'', ''zip'' 
%></p>

<%= observe_field(:wh_config_zip, 

                  :frequency => 0.5,

                  :update => :wh_config_zip,

                  :url    => {:action => :reszip}) %>

 

In the controller, I put the following method in a public section,

 

    def reszip

        @fixed_zip = request.raw_post[0..4]

        render(:layout => false)

    end

 

An then I created an rhtml file in the view section for the controller
called reszip.html which contained the following:

 

<%= @fixed_zip %>

 

 

I put a breakpoint at the start of the reszip method, and I am getting there
with the contents of the input field. There''s some trailing garbage,
but I''m
thinking maybe the :with option will allow me to pass the value in a cleaner
way.

 

I would have thought this was simple since Ruby has built in support for
Ajax, but so far no luck. Am I on the wrong track here? 

 

Thanks in advance.

 

James

 

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Will Briggs

2006-Jan-18 03:59 UTC

head link

[Rails] NOOB Ajax question: handling form input

I think you''re on the right track.  Assign an ID to your form and then
use the :with attribute to serialize and send your form data to the
controller.

-Will

On 1/17/06, James Ricci <james@riccinursery.com>
wrote:>
>
>
> Hi,
>
>
>
> I was trying to modify how a standard edit form works so I could use Ajax
to
> truncate a zip code field which became too long as the user is entering the
> value. The form was generated by the generate scaffold script. The form is
> filled with default data taken from the current record. I coded the
> following changes to a field in the _form.rhtml file:
>
>
>
> <%= text_field ''wh_config'', ''zip'' 
%></p>
>
> <%= observe_field(:wh_config_zip,
>
>                   :frequency => 0.5,
>
>                   :update => :wh_config_zip,
>
>                   :url    => {:action => :reszip}) %>
>
>
>
> In the controller, I put the following method in a public section,
>
>
>
>     def reszip
>
>         @fixed_zip = request.raw_post[0..4]
>
>         render(:layout => false)
>
>     end
>
>
>
> An then I created an rhtml file in the view section for the controller
> called reszip.html which contained the following:
>
>
>
> <%= @fixed_zip %>
>
>
>
>
>
> I put a breakpoint at the start of the reszip method, and I am getting
there
> with the contents of the input field. There''s some trailing
garbage, but I''m
> thinking maybe the :with option will allow me to pass the value in a
cleaner
> way.
>
>
>
> I would have thought this was simple since Ruby has built in support for
> Ajax, but so far no luck. Am I on the wrong track here?
>
>
>
> Thanks in advance.
>
>
>
> James
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
>

James Ricci

2006-Jan-18 04:05 UTC

head link

[Rails] NOOB Ajax question: handling form input

Will,

Thanks for the amazingly fast response. I looked at the generated html
source code in my browser:

<input id="wh_config_zip" name="wh_config[zip]"
size="30" type="text"
value="111113" /></p>
<script type="text/javascript">
//<![CDATA[
new Form.Element.Observer(''wh_config_zip'', 0.5,
function(element, value)
{new Ajax.Updater(''wh_config_zip'',
''/wh_config/reszip'', {asynchronous:true,
evalScripts:true, parameters:value})})
//]]>
</script>

It looks like my input form has an id already, and I see it referenced in
the java script which gets generated. Can you spot a problem here?

James

-----Original Message-----
From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Will Briggs
Sent: Tuesday, January 17, 2006 9:59 PM
To: rails@lists.rubyonrails.org
Subject: Re: [Rails] NOOB Ajax question: handling form input

I think you''re on the right track.  Assign an ID to your form and then
use the :with attribute to serialize and send your form data to the
controller.

-Will

On 1/17/06, James Ricci <james@riccinursery.com>
wrote:>
>
>
> Hi,
>
>
>
> I was trying to modify how a standard edit form works so I could use Ajax
to> truncate a zip code field which became too long as the user is entering
the> value. The form was generated by the generate scaffold script. The form is
> filled with default data taken from the current record. I coded the
> following changes to a field in the _form.rhtml file:
>
>
>
> <%= text_field ''wh_config'', ''zip'' 
%></p>
>
> <%= observe_field(:wh_config_zip,
>
>                   :frequency => 0.5,
>
>                   :update => :wh_config_zip,
>
>                   :url    => {:action => :reszip}) %>
>
>
>
> In the controller, I put the following method in a public section,
>
>
>
>     def reszip
>
>         @fixed_zip = request.raw_post[0..4]
>
>         render(:layout => false)
>
>     end
>
>
>
> An then I created an rhtml file in the view section for the controller
> called reszip.html which contained the following:
>
>
>
> <%= @fixed_zip %>
>
>
>
>
>
> I put a breakpoint at the start of the reszip method, and I am getting
there> with the contents of the input field. There''s some trailing
garbage, but
I''m> thinking maybe the :with option will allow me to pass the value in a
cleaner> way.
>
>
>
> I would have thought this was simple since Ruby has built in support for
> Ajax, but so far no luck. Am I on the wrong track here?
>
>
>
> Thanks in advance.
>
>
>
> James
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
>_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Rob Biedenharn

2006-Jan-18 04:19 UTC

head link

[Rails] NOOB Ajax question: handling form input

Why not just change
size="30"
to
size="5"
and skip all the AJAX (for this problem, not completely ;-)

-Rob

At 1/17/2006 11:02 PM, James Ricci wrote:>Will,
>
>Thanks for the amazingly fast response. I looked at the generated html
>source code in my browser:
>
><input id="wh_config_zip" name="wh_config[zip]"
size="30" type="text"
>value="111113" /></p>
><script type="text/javascript">
>//<![CDATA[
>new Form.Element.Observer(''wh_config_zip'', 0.5,
function(element, value)
>{new Ajax.Updater(''wh_config_zip'',
''/wh_config/reszip'', {asynchronous:true,
>evalScripts:true, parameters:value})})
>//]]>
></script>
>
>It looks like my input form has an id already, and I see it referenced in
>the java script which gets generated. Can you spot a problem here?
>
>James
>
>-----Original Message-----
>From: rails-bounces@lists.rubyonrails.org
>[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Will Briggs
>Sent: Tuesday, January 17, 2006 9:59 PM
>To: rails@lists.rubyonrails.org
>Subject: Re: [Rails] NOOB Ajax question: handling form input
>
>I think you''re on the right track.  Assign an ID to your form and
then
>use the :with attribute to serialize and send your form data to the
>controller.
>
>-Will
>
>On 1/17/06, James Ricci <james@riccinursery.com> wrote:
> >
> >
> >
> > Hi,
> >
> >
> >
> > I was trying to modify how a standard edit form works so I could use
Ajax
>to
> > truncate a zip code field which became too long as the user is
entering
>the
> > value. The form was generated by the generate scaffold script. The
form is
> > filled with default data taken from the current record. I coded the
> > following changes to a field in the _form.rhtml file:
> >
> >
> >
> > <%= text_field ''wh_config'',
''zip''  %></p>
> >
> > <%= observe_field(:wh_config_zip,
> >
> >                   :frequency => 0.5,
> >
> >                   :update => :wh_config_zip,
> >
> >                   :url    => {:action => :reszip}) %>
> >
> >
> >
> > In the controller, I put the following method in a public section,
> >
> >
> >
> >     def reszip
> >
> >         @fixed_zip = request.raw_post[0..4]
> >
> >         render(:layout => false)
> >
> >     end
> >
> >
> >
> > An then I created an rhtml file in the view section for the controller
> > called reszip.html which contained the following:
> >
> >
> >
> > <%= @fixed_zip %>
> >
> >
> >
> >
> >
> > I put a breakpoint at the start of the reszip method, and I am getting
>there
> > with the contents of the input field. There''s some trailing
garbage, but
>I''m
> > thinking maybe the :with option will allow me to pass the value in a
>cleaner
> > way.
> >
> >
> >
> > I would have thought this was simple since Ruby has built in support
for
> > Ajax, but so far no luck. Am I on the wrong track here?
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > James
> >
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> >
> >
>_______________________________________________
>Rails mailing list
>Rails@lists.rubyonrails.org
>http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
>
>_______________________________________________
>Rails mailing list
>Rails@lists.rubyonrails.org
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James Ricci

2006-Jan-18 04:43 UTC

head link

[Rails] NOOB Ajax question: handling form input

Rob,

 

I''m trying to understand how Ajax works with Ruby. This is just a
simple
example I thought would be easy to do. 

 

James 

 

  _____  

From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Rob Biedenharn
Sent: Tuesday, January 17, 2006 10:19 PM
To: rails@lists.rubyonrails.org
Subject: RE: [Rails] NOOB Ajax question: handling form input

 

Why not just change 

size="30" 

to 

size="5" 

and skip all the AJAX (for this problem, not completely ;-)

-Rob

At 1/17/2006 11:02 PM, James Ricci wrote:



Will,

Thanks for the amazingly fast response. I looked at the generated html
source code in my browser:

<input id="wh_config_zip" name="wh_config[zip]"
size="30" type="text"
value="111113" /></p>
<script type="text/javascript">
//<![CDATA[
new Form.Element.Observer(''wh_config_zip'', 0.5,
function(element, value)
{new Ajax.Updater(''wh_config_zip'',
''/wh_config/reszip'', {asynchronous:true,
evalScripts:true, parameters:value})})
//]]>
</script>

It looks like my input form has an id already, and I see it referenced in
the java script which gets generated. Can you spot a problem here?

James

-----Original Message-----
From: rails-bounces@lists.rubyonrails.org
[ <mailto:rails-bounces@lists.rubyonrails.org>
mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Will Briggs
Sent: Tuesday, January 17, 2006 9:59 PM
To: rails@lists.rubyonrails.org
Subject: Re: [Rails] NOOB Ajax question: handling form input

I think you''re on the right track.  Assign an ID to your form and then
use the :with attribute to serialize and send your form data to the
controller.

-Will

On 1/17/06, James Ricci <james@riccinursery.com>
wrote:>
>
>
> Hi,
>
>
>
> I was trying to modify how a standard edit form works so I could use Ajax
to> truncate a zip code field which became too long as the user is entering
the> value. The form was generated by the generate scaffold script. The form is
> filled with default data taken from the current record. I coded the
> following changes to a field in the _form.rhtml file:
>
>
>
> <%= text_field ''wh_config'', ''zip'' 
%></p>
>
> <%= observe_field(:wh_config_zip,
>
>                   :frequency => 0.5,
>
>                   :update => :wh_config_zip,
>
>                   :url    => {:action => :reszip}) %>
>
>
>
> In the controller, I put the following method in a public section,
>
>
>
>     def reszip
>
>         @fixed_zip = request.raw_post[0..4]
>
>         render(:layout => false)
>
>     end
>
>
>
> An then I created an rhtml file in the view section for the controller
> called reszip.html which contained the following:
>
>
>
> <%= @fixed_zip %>
>
>
>
>
>
> I put a breakpoint at the start of the reszip method, and I am getting
there> with the contents of the input field. There''s some trailing
garbage, but
I''m> thinking maybe the :with option will allow me to pass the value in a
cleaner> way.
>
>
>
> I would have thought this was simple since Ruby has built in support for
> Ajax, but so far no luck. Am I on the wrong track here?
>
>
>
> Thanks in advance.
>
>
>
> James
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
>_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails



_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

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Will Briggs

2006-Jan-18 05:01 UTC

head link

[Rails] NOOB Ajax question: handling form input

Can you post the contents of your .rhtml file?  Your input field has
an ID but I can''t see your form info here or the code you''re
using to
generate the field observer...

Thanks,
Will

On 1/17/06, James Ricci <james@riccinursery.com>
wrote:> Will,
>
> Thanks for the amazingly fast response. I looked at the generated html
> source code in my browser:
>
> <input id="wh_config_zip" name="wh_config[zip]"
size="30" type="text"
> value="111113" /></p>
> <script type="text/javascript">
> //<![CDATA[
> new Form.Element.Observer(''wh_config_zip'', 0.5,
function(element, value)
> {new Ajax.Updater(''wh_config_zip'',
''/wh_config/reszip'', {asynchronous:true,
> evalScripts:true, parameters:value})})
> //]]>
> </script>
>
> It looks like my input form has an id already, and I see it referenced in
> the java script which gets generated. Can you spot a problem here?
>
> James
>
> -----Original Message-----
> From: rails-bounces@lists.rubyonrails.org
> [mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Will Briggs
> Sent: Tuesday, January 17, 2006 9:59 PM
> To: rails@lists.rubyonrails.org
> Subject: Re: [Rails] NOOB Ajax question: handling form input
>
> I think you''re on the right track.  Assign an ID to your form and
then
> use the :with attribute to serialize and send your form data to the
> controller.
>
> -Will
>
> On 1/17/06, James Ricci <james@riccinursery.com> wrote:
> >
> >
> >
> > Hi,
> >
> >
> >
> > I was trying to modify how a standard edit form works so I could use
Ajax
> to
> > truncate a zip code field which became too long as the user is
entering
> the
> > value. The form was generated by the generate scaffold script. The
form is
> > filled with default data taken from the current record. I coded the
> > following changes to a field in the _form.rhtml file:
> >
> >
> >
> > <%= text_field ''wh_config'',
''zip''  %></p>
> >
> > <%= observe_field(:wh_config_zip,
> >
> >                   :frequency => 0.5,
> >
> >                   :update => :wh_config_zip,
> >
> >                   :url    => {:action => :reszip}) %>
> >
> >
> >
> > In the controller, I put the following method in a public section,
> >
> >
> >
> >     def reszip
> >
> >         @fixed_zip = request.raw_post[0..4]
> >
> >         render(:layout => false)
> >
> >     end
> >
> >
> >
> > An then I created an rhtml file in the view section for the controller
> > called reszip.html which contained the following:
> >
> >
> >
> > <%= @fixed_zip %>
> >
> >
> >
> >
> >
> > I put a breakpoint at the start of the reszip method, and I am getting
> there
> > with the contents of the input field. There''s some trailing
garbage, but
> I''m
> > thinking maybe the :with option will allow me to pass the value in a
> cleaner
> > way.
> >
> >
> >
> > I would have thought this was simple since Ruby has built in support
for
> > Ajax, but so far no luck. Am I on the wrong track here?
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > James
> >
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> >
> >
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

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