[Rails] Html to plain text

I need to extract some text from a model in order to publish it in a CSV file. My problem was that one field's content is in pure html, like:

& quot; name & quot;=& gt;
[& quot;TommasoTorti& quot;, & quot;Tommaso& quot;]

; but in my csv file i need the text in a plain format.
One way is to unescape the html in the model:

def to_csv
[... , CGI.unescapeHTML(self.field) ].join("\t")
end

and insert the 'raw' command inside the view:

<%= raw my_model.to_csv %>

(The controller's code:

 @models = MyModel.all
 response.headers["Content-Type"]         = "text/csv; charset=UTF-8; header=present"
 response.headers["Content-Disposition"] = "attachment; filename=my_models.csv"
 render :layout => false

)