Rails - Oct 2010 - Rails 3 upgraded form validation issue

H All,

I have run into a very interesting issue. On one of my apps, after upgrading
from 2.3 to 3.0, the form validation started to escape html. Normally what
should happen when you submit a form and one of the fields fails validation
that field would get surrounded with a <div
class="fieldWithErrors"> and so
on. That seems to be broken in my app and what I get is the correct html but
it is escaped, so in the browser I see the actual html code instead of the
input control. For instance, this excerpt from the html source:

<div class="field">
    &lt;span class=&quot;fieldWithErrors&quot;&gt;&lt;label
for=&quot;customer_first_name&quot;&gt;First
name&lt;/label&gt;&lt;/span&gt;<br />

    &lt;span class=&quot;fieldWithErrors&quot;&gt;&lt;input
id=&quot;customer_first_name&quot;
name=&quot;customer[first_name]&quot; size=&quot;30&quot;
type=&quot;text&quot; value=&quot;&quot;
/&gt;&lt;/span&gt;

  </div>


I verified that on a newly created app everything works fine so this seems
to be a configuration issues after upgrading from 2.3.9 to 3.0.

Any help will be greatly appreciated.

Raf

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Rafael Szuminski wrote in post #947092:
> H All,
>
> I have run into a very interesting issue. On one of my apps, after
> upgrading
> from 2.3 to 3.0, the form validation started to escape html. Normally
> what
> should happen when you submit a form and one of the fields fails
> validation
> that field would get surrounded with a <div
class="fieldWithErrors"> and
> so
> on. That seems to be broken in my app and what I get is the correct html
> but
> it is escaped, so in the browser I see the actual html code instead of
> the
> input control. For instance, this excerpt from the html source:
>
> <div class="field">
>     &lt;span
class=&quot;fieldWithErrors&quot;&gt;&lt;label
> for=&quot;customer_first_name&quot;&gt;First
> name&lt;/label&gt;&lt;/span&gt;<br />
>
>     &lt;span
class=&quot;fieldWithErrors&quot;&gt;&lt;input
> id=&quot;customer_first_name&quot;
> name=&quot;customer[first_name]&quot; size=&quot;30&quot;
> type=&quot;text&quot; value=&quot;&quot;
/&gt;&lt;/span&gt;
>
>   </div>
>
>
> I verified that on a newly created app everything works fine so this
> seems
> to be a configuration issues after upgrading from 2.3.9 to 3.0.
>
> Any help will be greatly appreciated.
>
> Raf
Raf, I''m having the exact same problem. Has this problem been resolved?
What was the solution?

Thank you very much.

LBfromLA

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On 9 October 2010 01:18, Rafael Szuminski
<raf1hh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> H All,
> I have run into a very interesting issue. On one of my apps, after
upgrading
> from 2.3 to 3.0, the form validation started to escape html. Normally what
> should happen when you submit a form and one of the fields fails validation
> that field would get surrounded with a <div
class="fieldWithErrors"> and so
> on. That seems to be broken in my app and what I get is the correct html
but
> it is escaped, so in the browser I see the actual html code instead of the
> input control. For instance, this excerpt from the html source:
>
> <div class="field">
>     &lt;span
class=&quot;fieldWithErrors&quot;&gt;&lt;label
> for=&quot;customer_first_name&quot;&gt;First
> name&lt;/label&gt;&lt;/span&gt;<br />
>
>     &lt;span
class=&quot;fieldWithErrors&quot;&gt;&lt;input
> id=&quot;customer_first_name&quot;
name=&quot;customer[first_name]&quot;
> size=&quot;30&quot; type=&quot;text&quot;
value=&quot;&quot;
> /&gt;&lt;/span&gt;
>
>   </div>
>
> I verified that on a newly created app everything works fine so this seems
> to be a configuration issues after upgrading from 2.3.9 to 3.0.
> Any help will be greatly appreciated.
Strings are HTML-escaped by default in Rails 3, so if you have a
helper that generates HTML then you need to explicitly tell Rails that
it is ''HTML-safe''.

Are you using a helper or perhaps a plugin to generate your form HTML?
If so, it could be that it needs updating to mark HTML as HTML-safe.
(This would also explain why a newly-generated Rails 3 app which
doesn''t have that helper/plugin is generating this HTML correctly.)

Chris

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