Rails - Apr 2006 - Firefox won''t let me send ''&'' with AJAX!

Hi everyone,

I''ve encountered a HUGE problem, which may not be RoR-oriented, but 
there might be a workaround somehow.

See, at this moment, I''m unable to send AJAX requests back and forth 
when the information contains an ampersand (''&''). In
essence, request is
never completed. The odd thing is that it only happens with Firefox (IE 
and Opera works fine).

This means that I''m unable to pass along html entities, since they all,
conveniently enough, contains ampersands. I can''t replace the ampersand
with the html entitiy for it, either, since that would also contain an 
ampersand. Being Swedish, I''m kinda screwed if I can''t use
å,
ä and ö on my website. Replacing them with the letter without 
using entities is out of the question, too; they only come out as nice 
boxes if I do. :)

Please note that the request itself can be without ampersands, and it 
still doesn''t work as long as the data I fetch contains one or more 
ampersands.

Does anyone have a clue on how to fix this, or work around it? I''ve 
tried creating a function which substitutes certain characters with 
their entity-form using string.gsub(), but that doesn''t work either. Is
there a way to perform such a substitution after the AJAX-request is 
completed, and if so, how do I do that?

Thanks in advance,

Sebastian

-- 
Posted via http://www.ruby-forum.com/.

Hi, Sebastian.

Could you give us "the simplest thing that works", i.e. the
"simplest
thing that breaks" in your case? It will be hard to find someone who  
has the same problem when you describe it abstractly but very easy if  
you give an example :)

Regards,

Manuel

I''m sure there is a helper within RoR that will do this for you, but
you
need to escape certain characters in urls. See
http://www.december.com/html/spec/esccodes.html for what the escape
sequences are (for example, "&" is "%26"

--mark

On 4/11/06, Sebastian von Conrad <sebastian@march4.se>
wrote:
>
> Hi everyone,
>
> I''ve encountered a HUGE problem, which may not be RoR-oriented,
but
> there might be a workaround somehow.
>
> See, at this moment, I''m unable to send AJAX requests back and
forth
> when the information contains an ampersand (''&''). In
essence, request is
> never completed. The odd thing is that it only happens with Firefox (IE
> and Opera works fine).
>
> This means that I''m unable to pass along html entities, since they
all,
> conveniently enough, contains ampersands. I can''t replace the
ampersand
> with the html entitiy for it, either, since that would also contain an
> ampersand. Being Swedish, I''m kinda screwed if I can''t
use &aring;,
> &auml; and &ouml; on my website. Replacing them with the letter
without
> using entities is out of the question, too; they only come out as nice
> boxes if I do. :)
>
> Please note that the request itself can be without ampersands, and it
> still doesn''t work as long as the data I fetch contains one or
more
> ampersands.
>
> Does anyone have a clue on how to fix this, or work around it?
I''ve
> tried creating a function which substitutes certain characters with
> their entity-form using string.gsub(), but that doesn''t work
either. Is
> there a way to perform such a substitution after the AJAX-request is
> completed, and if so, how do I do that?
>
> Thanks in advance,
>
> Sebastian
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>


--
Mark Van Holstyn
mvette13@gmail.com
http://lotswholetime.com
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Manuel Holtgrewe wrote:
> Could you give us "the simplest thing that works", i.e. the
"simplest
> thing that breaks" in your case? It will be hard to find someone who
> has the same problem when you describe it abstractly but very easy if
> you give an example :)
Manuel, I''m not really sure how to give an example of it; I''ve
used
link_to_remote to fetch information from a database - nothing strange or 
alien.

Controller:

@staff = Staff.find(:first, :conditions => [ "name = ?",
params[:name]])
render :partial => "staff"

However, as *soon* as the information in any way contains an ampersand, 
it ceases to function. For example, if my partial looks like this:

<%= @staff.name %> <%= @staff.position %> <%= @staff.email %>

..it will work without a problem for certain entries (ex. @staff.name == 
Foo Bar), but others will fail (ex. @staff.name == Foo Bar&aacute;), 
only because that specific database column contained an ampersand. 
Omitting <%= @staff.name %> from the partial makes it work again, 
though.

Again, only in Firefox. It works with ampersands in IE and Opera.

Mark Van Holstyn wrote:
> I''m sure there is a helper within RoR that will do this for you,
but you
> need to escape certain characters in urls. See
> http://www.december.com/html/spec/esccodes.html for what the escape
> sequences are (for example, "&" is "%26"
Mark, the problem does not appear to be in the urls, but rather the data 
fetched from the database, so I''m not sure if escaping certain 
characters in url would work.

Best regards,

Sebastian

-- 
Posted via http://www.ruby-forum.com/.

If you are sending "&" in the url as data, you will have problems
because
"&" is what url''s use to split fields. If you
aren''t sending "&" in the url,
them I am not sure what the porblems you are having is, in which case I
would agree with Manuel, I think we need an example.

--mark

--
Mark Van Holstyn
mvette13@gmail.com
http://lotswholetime.com
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So use POST instead of GET...

problem solved.

On 4/11/06, Mark Van Holstyn <mvette13@gmail.com>
wrote:
>
> If you are sending "&" in the url as data, you will have
problems because
> "&" is what url''s use to split fields. If you
aren''t sending "&" in the url,
> them I am not sure what the porblems you are having is, in which case I
> would agree with Manuel, I think we need an example.
>
> --mark
>
>
> --
> Mark Van Holstyn
> mvette13@gmail.com
> http://lotswholetime.com
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
>

--
seth at subimage interactive
http://www.subimage.com/sublog/
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Mark Van Holstyn wrote:
> If you are sending "&" in the url as data, you will have
problems
> because
> "&" is what url''s use to split fields. If you
aren''t sending "&" in the
> url,
> them I am not sure what the porblems you are having is, in which case I
> would agree with Manuel, I think we need an example.
> 
> --mark
Okay, full example:

# template #

<%= link_to_remote("Technology used",
    :update => ''m4-right-wrap-projdesc'',
    :url => { :action => :projtech, :id => @project.id },
    :loading =>
"Element.hide(''m4-right-wrap-projdesc'')",
    :complete => { visual_effect(:appear,
''m4-right-wrap-projdesc''),
visual_effect(:appear, ''m4-right-proj-glossary'')}) %>

# template render for id #1 #

<a href="#" onclick="new
Ajax.Updater(''m4-right-wrap-projdesc'',
''/portfolio/projtech/1'', {asynchronous:true, evalScripts:true,
onComplete:function(request){new 
Effect.Appear(''m4-right-wrap-projdesc'',{});new 
Effect.Appear(''m4-right-proj-glossary'',{});}, 
onLoading:function(request){Element.hide(''m4-right-wrap-projdesc'')}});
return false;">Technology used</a>

# controller #

def projtech
  @project = Project.find(params[:id])
  render :partial => "tech"
end

# partial #

<%= @project.technology %>

# end #

This doesn''t work because in my MySQL table called
"projects", the
column "technology" for id #1 contains an ampersand. As you can see, I
don''t have & in the url, which suggests that that''s not
the problem.

So, basically, this doesn''t work in Firefox because the data
I''m
*fetching* in the MySQL table contains an ampersand (or more). It has 
nothing to do with the url. Try it yourselves - it won''t work in
Firefox
1.5.

I also tried adding :method => ''post'' to the
link_to_remote, but that
didn''t change anything.

Regards,

Sebastian

-- 
Posted via http://www.ruby-forum.com/.

On second thought, let''s make the example even easier:

Create a link_to_remote; call it whatever you wish and update whichever 
id of your choice. Create an action to call, call that one whatever you 
wish. In the action you call, simply have:

def action_to_be_called_by_ajax
  render_text "ä"
end

...and it won''t work in Firefox. Remove the ampersand in the text to be
rendered and it will.

- Sebastian

-- 
Posted via http://www.ruby-forum.com/.

Your last example works for me and displays...
?

The only thing i can think of is if your firefox cannot display non-acsii
characters, however my firefox definately works.

--mark

On 4/12/06, Sebastian von Conrad <sebastian@march4.se>
wrote:
>
> On second thought, let''s make the example even easier:
>
> Create a link_to_remote; call it whatever you wish and update whichever
> id of your choice. Create an action to call, call that one whatever you
> wish. In the action you call, simply have:
>
> def action_to_be_called_by_ajax
>   render_text "&auml;"
> end
>
> ...and it won''t work in Firefox. Remove the ampersand in the text
to be
> rendered and it will.
>
> - Sebastian
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>


--
Mark Van Holstyn
mvette13@gmail.com
http://lotswholetime.com
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Don''t forget that Rails has the h(string) helper method availabile in
your
view.

So when you want to show one of your problematic data pieces in a view
you''d
do this

<%= h("This & That") %>

This might solve your problem.


On 4/12/06, Sebastian von Conrad <sebastian@march4.se>
wrote:
>
> On second thought, let''s make the example even easier:
>
> Create a link_to_remote; call it whatever you wish and update whichever
> id of your choice. Create an action to call, call that one whatever you
> wish. In the action you call, simply have:
>
> def action_to_be_called_by_ajax
>   render_text "&auml;"
> end
>
> ...and it won''t work in Firefox. Remove the ampersand in the text
to be
> rendered and it will.
>
> - Sebastian
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
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Mark Van Holstyn wrote:
> Your last example works for me and displays...
> ?
> 
> The only thing i can think of is if your firefox cannot display 
> non-acsii
> characters, however my firefox definately works.
> 
> --mark
That''s very strange, since it doesn''t work for me, or for
several people
I''ve asked. Maybe you''re using another version of Firefox? I
have
1.5.0.1.

- Sebastian

-- 
Posted via http://www.ruby-forum.com/.

D. Taylor Singletary wrote:
> Don''t forget that Rails has the h(string) helper method availabile
in
> your
> view.
> 
> So when you want to show one of your problematic data pieces in a view 
> you''d
> do this
> 
> <%= h("This & That") %>
> 
> This might solve your problem.
This is useful, but unfortunately didn''t solve this problem. Now the 
data is displayed and everything, but as the entity (&auml;) instead of 
the symbol it represents.

Another strange thing I''ve noticed is that &amp;auml; works (in
other
words when I substitute & for &amp;). That also outputs &auml;
instead
of the symbol, though, but I''m currently investigating a method of 
working around the problem.

- Sebastian

-- 
Posted via http://www.ruby-forum.com/.

Sorry to bump this, but it seems that the method I was trying out
didn''t
work. Basically, if someone could figure out some client-side way to 
replace characters (& with & in this case), I''d be
eternally
grateful. Rails-code won''t work, since that''s server-side.
JavaScript
doesn''t appear to work, either, at least not the way I tried (writing a
function and calling it from the partial). Can it be done with RJS, 
somehow? I was for a split-second thinking that replace_html could help, 
but then I realised that''s only for id''s and doesn''t
work as a global
find/replace. Besides, that''s server-side, as well.

I also tried printing the symbols directly and forcing a special 
encoding, but that wasn''t reliable at all...

Again, I''m very, very thankful for any help on the topic. This is 
literally the last thing left to do on a major site for me, and I''m 
already past the deadline.

Regards,

Sebastian

-- 
Posted via http://www.ruby-forum.com/.

2006/4/12, Sebastian von Conrad
<sebastian@march4.se>:
>
> Again, I''m very, very thankful for any help on the topic. This is
> literally the last thing left to do on a major site for me, and
I''m
> already past the deadline.
>
If you replace the link_to_remote with a link_to, does it display
properly? (IOW: Is it only realted to XMLHttpRequest? Can you pass you
data through XMLHttpRequest or is it a prototype problem?)

Douglas

I am running Firefox 1.5.0.1 as well. If you do something like this...

def action_to_be_called_by_ajax
 render_text "here is the character: ä :there was the
character"
end

What is displayed? anything? "here is the character:  :there was the
character"?

--mark
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Douglas Livingstone wrote:
> If you replace the link_to_remote with a link_to, does it display
> properly? (IOW: Is it only realted to XMLHttpRequest? Can you pass you
> data through XMLHttpRequest or is it a prototype problem?)
> 
> Douglas
It''s only related to XMLHttpRequest; link_to works fine.

Mark Van Holstyn wrote:
> I am running Firefox 1.5.0.1 as well. If you do something like this...
> 
> def action_to_be_called_by_ajax
>  render_text "here is the character: ä :there was the
character"
> end
> 
> What is displayed? anything? "here is the character:  :there was the
> character"?
> 
> --mark
Nothing at all happens. Or, well, the request is processed but never 
finished. In other words, everything I specify under :loading is 
executed, but :complete never is.

Regards,

Sebastian

-- 
Posted via http://www.ruby-forum.com/.

Silly question but is ä considered a legal entity in XML ?

On 4/12/06, Sebastian von Conrad <sebastian@march4.se>
wrote:
> Douglas Livingstone wrote:
> > If you replace the link_to_remote with a link_to, does it display
> > properly? (IOW: Is it only realted to XMLHttpRequest? Can you pass you
> > data through XMLHttpRequest or is it a prototype problem?)
> >
> > Douglas
>
> It''s only related to XMLHttpRequest; link_to works fine.
>
> Mark Van Holstyn wrote:
> > I am running Firefox 1.5.0.1 as well. If you do something like this...
> >
> > def action_to_be_called_by_ajax
> >  render_text "here is the character: &auml; :there was the
character"
> > end
> >
> > What is displayed? anything? "here is the character:  :there was
the
> > character"?
> >
> > --mark
>
> Nothing at all happens. Or, well, the request is processed but never
> finished. In other words, everything I specify under :loading is
> executed, but :complete never is.
>
> Regards,
>
> Sebastian
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Kenneth Lee wrote:
> Silly question but is ä considered a legal entity in XML ?
That''s is such a ridiculous cause of a problem.

Wow, do I feel stupid, or what? 24 hours of cry and dispair, and it 
never even occured to me once - not once - to try ä instead of 
ä. I''m getting blas? about this whole thing, I believe.

Thanks, Kenneth. You spared me a lot of trouble and ridicule (though I 
think I have received/will receive plenty of both).

- Sebastian

-- 
Posted via http://www.ruby-forum.com/.

Hey Kenneth Lee, it appears to be a valid character if you''re using
iso-88591 <http://www.w3.org/TR/REC-html40/sgml/entities.html#iso-88591>
as
your character encoding for your HTML file.  By doing the following:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1" />
    <title>Some Stuff</title>
  </head>
  <body>

  ...

  </body>
</html>

Peace,

-Conrad

On 4/12/06, Kenneth Lee <klee@klmn.net> wrote:
>
> Silly question but is &auml; considered a legal entity in XML ?
>
> On 4/12/06, Sebastian von Conrad <sebastian@march4.se> wrote:
> > Douglas Livingstone wrote:
> > > If you replace the link_to_remote with a link_to, does it display
> > > properly? (IOW: Is it only realted to XMLHttpRequest? Can you
pass you
> > > data through XMLHttpRequest or is it a prototype problem?)
> > >
> > > Douglas
> >
> > It''s only related to XMLHttpRequest; link_to works fine.
> >
> > Mark Van Holstyn wrote:
> > > I am running Firefox 1.5.0.1 as well. If you do something like
this...
> > >
> > > def action_to_be_called_by_ajax
> > >  render_text "here is the character: &auml; :there was
the character"
> > > end
> > >
> > > What is displayed? anything? "here is the character:  :there
was the
> > > character"?
> > >
> > > --mark
> >
> > Nothing at all happens. Or, well, the request is processed but never
> > finished. In other words, everything I specify under :loading is
> > executed, but :complete never is.
> >
> > Regards,
> >
> > Sebastian
> >
> > --
> > Posted via http://www.ruby-forum.com/.
> > _______________________________________________
> > 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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Hi, I have used the following and it worked for both numberical and
character:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml"
>
  <head>
    <meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1"
/>
    <title>Some Stuff</title>
  </head>
  <body>
    <h2>Using character entity:&nbsp;&nbsp;&auml;</h2>
    <h2>Using numerical entity:&nbsp;&nbsp;&#228;</h2>
  </body>
</html>

Peace,

-Conrad

On 4/12/06, Conrad Taylor <conradwt@gmail.com>
wrote:
>
> Hey Kenneth Lee, it appears to be a valid character if you''re
using
> iso-88591
<http://www.w3.org/TR/REC-html40/sgml/entities.html#iso-88591>as your
character encoding for your HTML file.  By doing the following:
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd
> ">
> <html xmlns="http://www.w3.org/1999/xhtml"
> >
>   <head>
>     <meta http-equiv="Content-Type"
> content="text/html; charset=ISO-8859-1" />
>     <title>Some Stuff</title>
>   </head>
>   <body>
>
>
>   ...
>
>   </body>
> </html>
>
> Peace,
>
> -Conrad
>
>
> On 4/12/06, Kenneth Lee <klee@klmn.net> wrote:
> >
> > Silly question but is &auml; considered a legal entity in XML ?
> >
> > On 4/12/06, Sebastian von Conrad <sebastian@march4.se> wrote:
> > > Douglas Livingstone wrote:
> > > > If you replace the link_to_remote with a link_to, does it
display
> > > > properly? (IOW: Is it only realted to XMLHttpRequest? Can
you pass
> > you
> > > > data through XMLHttpRequest or is it a prototype problem?)
> > > >
> > > > Douglas
> > >
> > > It''s only related to XMLHttpRequest; link_to works fine.
> > >
> > > Mark Van Holstyn wrote:
> > > > I am running Firefox 1.5.0.1 as well. If you do something
like
> > this...
> > > >
> > > > def action_to_be_called_by_ajax
> > > >  render_text "here is the character: &auml; :there
was the
> > character"
> > > > end
> > > >
> > > > What is displayed? anything? "here is the character: 
:there was the
> >
> > > > character"?
> > > >
> > > > --mark
> > >
> > > Nothing at all happens. Or, well, the request is processed but
never
> > > finished. In other words, everything I specify under :loading is
> > > executed, but :complete never is.
> > >
> > > Regards,
> > >
> > > Sebastian
> > >
> > > --
> > > Posted via http://www.ruby-forum.com/.
> > > _______________________________________________
> > > 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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Hi!

I am writing to reply to the first post. I am Greek so html entities are 
crucial in web development for me too! I understand exactly what the 
problem is. When one tries to send html entities that contain the
"&"
(ampersand) the data part of the send() method of the XMLHttpRequest 
breaks, because this is the character that separates url fields from 
each other.

To my mind the send method ought to have two ways of sending data! The 
one that it already has for GET methods and another one with an 
unspecified number of possible fields in case one wants to send a POST 
method. It is totally silly - I believe - to send a POST by saying:

    xml_http_request.send( "name=Takis&age=27" );

This is the classic way for doing this for a GET and there are good 
reasons for it, so why use it in a POST? I will never understand it! Now 
I cannot really understand how the other people here do this or the way 
they proposed - that seems to work for the original poster. Either I 
don''t get or I am too dizzy searching for a solution for quite some
time
now.

So I thought of a plain solution. How are "&" sent in a GET
usually?
They are escaped! They are escaped by "%26"! So this is what I believe
one should do when sending large texts - like the ones that online rich 
text editors (ie FCK, etc) produce - via an XMLHttpRequest send() POST!

That is until the people that run the internet (lol) invent a new send() 
method for XMLHttpRequest like:
    xml_http_request.send( {
        name: "Takis",
        age: "27",
        last_words: "I want to send an & with AJAX!"
    } );

Bye...

-- 
Posted via http://www.ruby-forum.com/.

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As a complement to my previous I should mention that one should 
generally the encodeURIComponent() function for escaping the content one 
wishes to send. So instead of esacping the "&" or anything like it
one
can simply escape the whole content like:

content = encodeURIComponent( content );

Cheers!

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> As a complement to my previous I should mention that one should 
> generally the encodeURIComponent() function for escaping the content one
wishes to send. So instead of esacping the "&" or anything like it
one can simply escape the whole content like: content = encodeURIComponent(
content );
just  a quick note.. that''s done behind the scenes when you use 
Element.serialize (or Form.serialize) in prototype.js, and it''s the 
method that is automatically called when you use the rails remote 
methods defined in the helpers.

the only thing you should be careful about is encodeURIComponent by 
design will always send the data in UTF-8, whatever the encoding of your 
original page was, so take it into account server side or you''ll end up
with strange characters.

regards,

javier ramirez


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Hey,

I''ve got the same problem when I use an ampersand in filenames, I just 
get an xml error message and nothing is working anymore.

But I''ve also got another problem with parenthesis/brackets like 
"folder(2006)". I''m programming an online file_browser and I
can''t enter
directories by link_to_remote which have a name with brackets or even 
contain a file which is named with brackets. I always get an error 
message that says, that one ")" is missing.

So is there any way to escape all special characters and signs for a 
whole document? Also the content-type handling doesn''t affect anything,
neither self made escape-functions with h(), because in some cases I 
think I need an "ä" converted to ä in other cases to
&#228? Is that
possible or am I just to blind to see the solution? Any help? Pleeeaaase 
=)
Thanks in advance!

Nina

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Hi Nina,

nina wrote:
> But I''ve also got another problem with parenthesis/brackets
> like "folder(2006)". I''m programming an online
file_browser
> and I can''t enter directories by link_to_remote which have a
> name with brackets or even contain a file which is named with
> brackets. I always get an error message that says, that one ")"
> is missing.
If you post some code that''s causing you problems, maybe we can help. 
As
far as the problem above, link_to_remote invokes a controller method.  At 
first blush, it doesn''t sound like you''re using it correctly,
but code and
an explanation of what you''re trying to accomplish will probably help.

Best regards,
Bill 



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I use the following snippet in a before_filter to clean up params  
affected by this encoding ''feature'':

URI:  /admin/en/products_extras?extra_id=1&product_id

Filter snippet:

   def clean_params_proxy(*to_clean)
     to_clean.map{|p| params[p] = params["amp;#{p.to_s}"] if  
params.has_key?("amp;#{p.to_s}")}
   end

  Usage:

class Admin::ProductExtrasController < Admin::BaseController

   before_filter :clean_params, :only => :create

  def create; end

  def destroy; end

protected

def clean_params
    clean_params_proxy :product_id, :extra_id
end

end

- Lourens

On 2007/04/13, at 14:01, Bill Walton wrote:
>
> Hi Nina,
>
> nina wrote:
>
>> But I''ve also got another problem with parenthesis/brackets
>> like "folder(2006)". I''m programming an online
file_browser
>> and I can''t enter directories by link_to_remote which have a
>> name with brackets or even contain a file which is named with
>> brackets. I always get an error message that says, that one
")"
>> is missing.
>
> If you post some code that''s causing you problems, maybe we can  
> help.  As
> far as the problem above, link_to_remote invokes a controller  
> method.  At
> first blush, it doesn''t sound like you''re using it
correctly, but
> code and
> an explanation of what you''re trying to accomplish will probably
help.
>
> Best regards,
> Bill
>
>
>
> 
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Lourens Naude ha scritto:
> I use the following snippet in a before_filter to clean up params  
> affected by this encoding ''feature'':
>
> URI:  /admin/en/products_extras?extra_id=1&product_id
>
> Filter snippet:
>
>    def clean_params_proxy(*to_clean)
>      to_clean.map{|p| params[p] = params["amp;#{p.to_s}"] if  
> params.has_key?("amp;#{p.to_s}")}
>    end
>
>   Usage:
>
> class Admin::ProductExtrasController < Admin::BaseController
>
>    before_filter :clean_params, :only => :create
>
>   def create; end
>
>   def destroy; end
>
> protected
>
> def clean_params
>     clean_params_proxy :product_id, :extra_id
> end
>
> end
>
> - Lourens
>
> On 2007/04/13, at 14:01, Bill Walton wrote:
>
>   
>> Hi Nina,
>>
>> nina wrote:
>>
>>     
>>> But I''ve also got another problem with
parenthesis/brackets
>>> like "folder(2006)". I''m programming an online
file_browser
>>> and I can''t enter directories by link_to_remote which have
a
>>> name with brackets or even contain a file which is named with
>>> brackets. I always get an error message that says, that one
")"
>>> is missing.
>>>       
>> If you post some code that''s causing you problems, maybe we
can
>> help.  As
>> far as the problem above, link_to_remote invokes a controller  
>> method.  At
>> first blush, it doesn''t sound like you''re using it
correctly, but
>> code and
>> an explanation of what you''re trying to accomplish will
probably help.
>>
>> Best regards,
>> Bill
>>
>>
>>
>>
>>     
>
> >
>
>
>   
I don''t understand what is the problem but I see a formal error amp; 
instead of &amp;

Correct this

   def clean_params_proxy(*to_clean)
     to_clean.map{|p| params[p] = params["amp;#{p.to_s}"] if  
params.has_key?("amp;#{p.to_s}")}
   end

into

def clean_params_proxy(*to_clean)
     to_clean.map{|p| params[p] = params["&amp;#{p.to_s}"] if  
params.has_key?("&amp;#{p.to_s}")}
   end

Hope this help and have fun !


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