Module: CacheableFlash::CookieFlash

Included in:
CacheableFlash, Middleware
Defined in:
lib/cacheable_flash/cookie_flash.rb

Instance Method Summary collapse

Instance Method Details



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# File 'lib/cacheable_flash/cookie_flash.rb', line 11

def cookie_flash(flash, cookies)
  cflash = (JSON.parse(cookies['flash']) if cookies['flash']) || {} rescue {}

  flash.each do |key, value| # key like :notice, or :error, or :sticky
    # When stacking we won't be escaping anything here, because will be array, not string
    value = ERB::Util.html_escape(value) if value.kind_of?(String) && !value.html_safe? # Since v0.3.0 only escaping strings
    skey = key.to_s
    # This allows any data type to be stored in the cookie; important for using an array as the value with
    # stackable_flash
    # The cookie flash will generally be set to a value stacked according to the :stack_with_proc of stackable_flash
    # But when there is already a value for the cookie when we get here, we need to join them somehow.
    stacked_value = value.respond_to?(:stack) ? value.stack : value
    if cflash[skey].kind_of?(Array) # Just because it could be an array
      if stacked_value.kind_of?(Array)
        cflash[skey] += stacked_value
      else
        cflash[skey] << stacked_value
      end
    else
      cflash[skey] = stacked_value
    end
  end
  # I have forgotten why the gsub + matters, so NOTE: to future self: document weird shit.
  cflash.to_json.gsub("+", "%2B")
end