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ActionController::Head

Public Instance Methods

head(status, options = {}) click to toggle source

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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