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...bject behind a page? I have the basic blog w/ comments page (only my "entry" is a "proposal"). I have the comments saving just fine, but I wanted to show an error if the user hits the submit button without typing anything in the comment. I added "validates_presence_of :comment_text" in my Comment AR class, and it appears that the empty comment is no longer being inserted into the db. However, I can''t figure out how to display the error message on the comment object (1 to M child of proposal) in the page. I put an else on the call to save the comment in my add...

I use a call to the sanitize method every time I render some user input, but it would be much nicer if I could clean it up once before putting it into the database and avoid having to call the (relatively expensive) sanitize every time I render a page. My first thought was to just add something like: def message=(x) self[:message]=sanitize(x) end However, the sanitize helper cannot be called