instance method `expires_in`

Ruby on Rails 4.1.16

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

expires_in(seconds, options = {})

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

expires_in 20.minutes
expires_in 3.hours, public: true
expires_in 3.hours, public: true, must_revalidate: true

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

The method will also ensure a HTTP Date header for client compatibility.

Parameters

seconds req
options opt = {}

Source

# File actionpack/lib/action_controller/metal/conditional_get.rb, line 152
    def expires_in(seconds, options = {})
      response.cache_control.merge!(
        :max_age         => seconds,
        :public          => options.delete(:public),
        :must_revalidate => options.delete(:must_revalidate)
      )
      options.delete(:private)

      response.cache_control[:extras] = options.map {|k,v| "#{k}=#{v}"}
      response.date = Time.now unless response.date?
    end

Defined in actionpack/lib/action_controller/metal/conditional_get.rb line 152 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionController::ConditionalGet

Signature

Parameters