method

expires_in

v3.1.0 - Show latest stable - Class: ActionController::ConditionalGet

expires_in(seconds, options = {})

public

Sets a HTTP 1.1 Cache-Control header. Defaults to issuing a private instruction, so that intermediate caches must not cache the response.

Examples:

expires_in 20.minutes
expires_in 3.hours, :public => true
expires_in 3.hours, 'max-stale' => 5.hours, :public => true

This method will overwrite an existing Cache-Control header. See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html for more possibilities.

# File actionpack/lib/action_controller/metal/conditional_get.rb, line 73
    def expires_in(seconds, options = {}) #:doc:
      response.cache_control.merge!(:max_age => seconds, :public => options.delete(:public))
      options.delete(:private)

      response.cache_control[:extras] = options.map {|k,v| "#{k}=#{v}"}
    end

expires_in

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