I figured out the answer to my own question, and I'm embarrassed by how
trivial it is: create a helper function that takes @user, @topic,
@profile etc as an argument. For example:
# app/helpers/my_helper.rb
module MyHelper
def my_error_message(obj)
return unless obj.errors.any?
summary = "#{pluralize(obj.errors.count, "error")} prevented this
#{obj.class} from being saved:"
msgs = obj.errors.full_messages.map { |msg| content_tag(:li, msg)
}.join
"<div
id=\"error_explanation\"><h3>#{summary}</h3><ul>#{msgs}</ul></div>".html_safe
end
end
Now you can sprinkle <%= my_error_message(@user) %> in the top of
user/_form.html.erb, etc. Works like a champ.
- ff
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