Rails - Aug 2006 - Want to use a view helper (TextHelper) in a model class

I have a model that deals with HTML and I want to use the 
text_helper.sanitize method to strip the HTML of Javascript.

However, it doesn''t appear that I can get easy access to the
text_helper
methods from within a model.

Anyone have any suggestions for how to do this?

In general, I think that there are some ActionView helpers which are 
generic enough to want to use in a model class.  Anyone have any 
comments on that?

Thanks,
Wes

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

You could include the TextHelper module in your model class to get 
access to the methods, but my solution was to extend the String class so 
that I could call some of the TextHelpers directly on a string:
>> "<b>cool</b>
http://rubyonrails.com".strip_tags.auto_link
=> "cool <a
href=\"http://rubyonrails.com\">http://rubyonrails.com</a>"

I posted the implementation of this on my blog a few days ago:

http://www.csummers.org/index.php/2006/08/07/extend-string-to-use-actionviews-text-helpers/

Comments and suggestions are welcome.

Curtis Summers


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

>http://www.csummers.org/index.php/2006/08/07/extend-string-to-use-actionviews-text-helpers/
> 
>Comments and suggestions are welcome.
If you look at the wrapper methods I''m constructing you''ll
notice that I
just copied the default arguments from the TextHelper method definition 
to the wrapper definitions.  For example:

def highlight(phrase, highlighter = ''<strong 
class="highlight">\1</strong>'')
  TextHelperSingleton.instance.highlight(self, phrase, highlighter)
end

This seems ugly, though, because I''d like not to have to copy the 
defaults (DRY) in case they happen to change in TextHelper''s
definition.
I tried making my argument defaults nil, but that doesn''t appear to 
work.

Any suggestions?

Curtis Summers



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

On 10 Aug 2006, at 06:48, Wes Gamble wrote:
> I have a model that deals with HTML and I want to use the
> text_helper.sanitize method to strip the HTML of Javascript.
>
> However, it doesn''t appear that I can get easy access to the  
> text_helper
> methods from within a model.
>
> Anyone have any suggestions for how to do this?
>
> In general, I think that there are some ActionView helpers which are
> generic enough to want to use in a model class.  Anyone have any
> comments on that?
They pertain more to String manipulation than to a model, if you ask  
me. Curtis Summers'' way of extending the String class is the best way  
to do it.


Best regards

Peter De Berdt

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