Module: CacheByPage::PageExtensions

Defined in:
lib/cache_by_page/page_extensions.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/cache_by_page/page_extensions.rb', line 2

def self.included(base)
  base.class_eval do
    extend ClassMethods
    validates_numericality_of :cache_expire_minutes, :allow_nil => false, :only_integer => true,
                              :message => 'must be a whole number'
    def validate
      self.cache_expire_minutes = -1 if self.cache_expire_minutes.to_i < -1
      if self.cache_expire_minutes.to_i != 0 && self.changes.include?("cache_expire_minutes")
        self.cache_expire_time = nil
      end
      if self.cache_expire_time != nil && self.changes.include?("cache_expire_time")
        self.cache_expire_minutes = 0
      end
      super
    end

    def cache?
      self.cache_expire_minutes.to_i >= 0
    end
    def cache_override?
      self.cache_expire_minutes.to_i > 0 || self.cache_expire_time != nil
    end
    def cache_duration
      @page = Page.find(self.id)
      case true
      when @page.cache_expire_minutes == 0 && @page.cache_expire_time == nil
        if SiteController.respond_to?('cache_timeout')
          SiteController.cache_timeout
        else
          ResponseCache.defaults[:expire_time]
        end
      when @page.cache_expire_minutes == -1 then nil
      when @page.cache_expire_minutes >= 1 then @page.cache_expire_minutes.minutes
      when @page.cache_expire_time != nil && @page.cache_expire_time.is_a?(Time) then
        next_expire_time = @page.cache_expire_time < Time.now ? @page.cache_expire_time.tomorrow : @page.cache_expire_time
        (next_expire_time - Time.now).round
      else nil
      end
    end
    def cache_setting
      @page = Page.find(self.id)
      case true
      when @page.cache_expire_minutes == 0 && @page.cache_expire_time == nil then Page.default_caching
      when @page.cache_expire_minutes == -1 then "No Caching"
      when @page.cache_expire_minutes == 1 then "1 minute"
      when @page.cache_expire_minutes > 1 then "#{@page.cache_expire_minutes} minutes"
      when @page.cache_expire_time != nil && @page.cache_expire_time.is_a?(Time) then
        "Daily at #{@page.cache_expire_time.strftime("%H")}:#{@page.cache_expire_time.strftime("%M")}"
      else "Not set"
      end
    end
    alias_method_chain :process, :expire_time
  end
end

Instance Method Details

#process_with_expire_time(request, response) ⇒ Object 



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# File 'lib/cache_by_page/page_extensions.rb', line 57

def process_with_expire_time(request, response)
  if cache?
    if cache_expire_minutes.to_i > 0
      response.cache_timeout = cache_expire_minutes.minutes.from_now
    elsif ! cache_expire_time.nil?
      expire_time = Time.parse("#{cache_expire_time.hour}:#{cache_expire_time.min}")
      response.cache_timeout = expire_time < Time.now ? expire_time.tomorrow : expire_time
    end
  end
  process_without_expire_time(request, response)
end