Return a response that has no content (merely headers). The options argument is interpreted to be a hash of header names and values. This allows you to easily return a response that consists only of significant headers:
head :created, :location => person_path(@person)
It can also be used to return exceptional conditions:
return head(:method_not_allowed) unless request.post? return head(:bad_request) unless valid_request? render
# File lib/action_controller/metal/head.rb, line 19 19: def head(status, options = {}) 20: options, status = status, nil if status.is_a?(Hash) 21: status ||= options.delete(:status) || :ok 22: location = options.delete(:location) 23: 24: options.each do |key, value| 25: headers[key.to_s.dasherize.split(/-/).map { |v| v.capitalize }.join("-")] = value.to_s 26: end 27: 28: self.status = status 29: self.location = url_for(location) if location 30: self.content_type = Mime[formats.first] 31: self.response_body = " " 32: end
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