Module: Itrigga::Cache::ControllerMethods

Defined in:

lib/itrigga/cache/cache.rb

Instance Method Summary

• #with_controller_cache(opts = {}, &block) ⇒ Object

Instance Method Details

#with_controller_cache(opts = {}, &block) ⇒ Object

# File 'lib/itrigga/cache/cache.rb', line 159

def with_controller_cache( opts = {}, &block )  

  if caching_enabled?(opts)
  
    opts[:key] = opts[:cache_key] || opts[:key] || (respond_to?(:cache_key) ? cache_key.to_s : nil)  # backwards compat using :cache_key
    raise ArgumentError("No cache key found") unless opts[:key]
    
    begin
    
      if params && params.kind_of?(Hash) && params["freshen"]
        delete_from_cache opts[:key], opts       
      end
        
      @content = with_cache(opts, &block) 
      @content ||= render_to_string unless performed?                
          
    rescue Exception => ex
      cache_log "Error when rendering cache block: #{ex.message}", opts
      @content ||= block.call
      @content ||= render_to_string unless performed?
    end
    
    # flashes need to be rendered and replaced every request if we're in a html request
    render_flashes if request.format.html? && respond_to?(:render_flashes)
  
  else # cache is not enabled so just render the block
    cache_log "Cache not enabled!", opts
    @content ||= block.call
    @content ||= render_to_string unless performed?
  end
  
  render(:text=>@content, :content_type=>( @content_type || "text/html"), :status=>@status) unless performed?
  
  @content
  
end