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module FormHelper
def form_errors(model)
return unless model.errors.any?
pluralized = 'error'.pluralize(model.errors.count)
headline = "The form contains the following #{pluralized}:"
content_tag(:div, class: 'alert alert-danger', id: 'error_explanation') do
content_tag(:h4, headline) <<
content_tag(:ul) do
model.errors.full_messages.
map { |msg| content_tag(:li, msg) }.
join.
html_safe
end
end
end
end
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