Rails - Mar 2006 - Prototype ajax/javascript q

I''m trying to send to my application the coords x,y on an "input
type
image" in a html form, but x,y variables are not present in the 
POST_DATA (are not submitted). Any other field (hidden inputs) are being 
sent when I click on the image input form field.

I use rails 1.0 and prototype 1.4, browsers Seamonkey
2.0, Firefox 1.x and Konqueror, Linux, and I''m just a newbie in ror.

Html code generated by rails:
<form action="/pixel/set" method="post" onsubmit="
new Ajax.Updater(''coords'', ''/pixel/set'',
{asynchronous:true,
evalScripts:true, parameters:Form.serialize(this)}); return false;">
    <div><input name="matrix" type="image"
src="/images/all.png" /></div>
</form>

In POST_DATA I have ''''.



Tried it without ajax:
<form action="/pixel/set" method="post">
<div id="pixels">
    <div><input name="matrix" type="image"
src="/images/all.png"
    /></div>
</form>

In POST_DATA i have matrix.x=572&matrix.y=443.


Hints, anyone? The code in the rhtml template is:

<%= form_remote_tag(:update => "coords",
                     :url => { :action => "set" }) %>
<div id="pixels">
     <div><input name="matrix" type="image"
src="/images/all.png"
     /></div>
<%= end_form_tag %>


-- 
They say money can''t buy happiness? Look at the smile on my face... ear
to ear, baby!

My guess is that Form.serialize (in prototype.js) ignores <input
type="image">
You could modify Form.Element.Serializers (input) and add the desired
behaviour for type "image"

Bogdan

On 3/13/06, Constantin Gavrilescu <costi@net.usr.ro>
wrote:
>
> I''m trying to send to my application the coords x,y on an
"input type
> image" in a html form, but x,y variables are not present in the
> POST_DATA (are not submitted). Any other field (hidden inputs) are being
> sent when I click on the image input form field.
>
> I use rails 1.0 and prototype 1.4, browsers Seamonkey
> 2.0, Firefox 1.x and Konqueror, Linux, and I''m just a newbie in
ror.
>
> Html code generated by rails:
> <form action="/pixel/set" method="post"
onsubmit="
> new Ajax.Updater(''coords'',
''/pixel/set'', {asynchronous:true,
> evalScripts:true, parameters:Form.serialize(this)}); return
false;">
>     <div><input name="matrix" type="image"
src="/images/all.png" /></div>
> </form>
>
> In POST_DATA I have ''''.
>
>
>
> Tried it without ajax:
> <form action="/pixel/set" method="post">
> <div id="pixels">
>     <div><input name="matrix" type="image"
src="/images/all.png"
>     /></div>
> </form>
>
> In POST_DATA i have matrix.x=572&matrix.y=443.
>
>
> Hints, anyone? The code in the rhtml template is:
>
> <%= form_remote_tag(:update => "coords",
>                      :url => { :action => "set" }) %>
> <div id="pixels">
>      <div><input name="matrix" type="image"
src="/images/all.png"
>      /></div>
> <%= end_form_tag %>
>
>
> --
> They say money can''t buy happiness? Look at the smile on my
face... ear
> to ear, baby!
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
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Cam pe la 03/13/2006 04:00 PM, Bogdan Ionescu scrise:
> My guess is that Form.serialize (in prototype.js) ignores <input 
> type="image">
> You could modify Form.Element.Serializers (input) and add the desired 
> behaviour for type "image"
Your guesss is be right. But after some reading, i found out that x,y 
coordinates of the click are not available in the forms objects, so 
can''t use <input type="image">. I''ll try
something else.

Form.Element.Serializers = {
  input: function(element) {
    switch (element.type.toLowerCase()) {
      case ''submit'':
      case ''hidden'':
      case ''password'':
      case ''text'':
        return Form.Element.Serializers.textarea(element);
      case ''checkbox'':
      case ''radio'':
        return Form.Element.Serializers.inputSelector(element);
    }
    return false;
  },


-- 
They say money can''t buy happiness? Look at the smile on my face... ear
to ear, baby!