Class: Rack::Tracker::HandlerDelegator

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/tracker/handler_delegator.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env = {}) ⇒ HandlerDelegator

Returns a new instance of HandlerDelegator.



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# File 'lib/rack/tracker/handler_delegator.rb', line 10

def initialize(env={})
  @env = env
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/rack/tracker/handler_delegator.rb', line 14

def method_missing(method_name, *args, &block)
  if respond_to?(method_name)
    write_event(handler(method_name).track(method_name, *args, &block))
  else
    super
  end
end

Instance Attribute Details

#env ⇒ Object

Returns the value of attribute env.



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# File 'lib/rack/tracker/handler_delegator.rb', line 8

def env
  @env
end

Class Method Details

.handler(method_name) ⇒ Object 



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# File 'lib/rack/tracker/handler_delegator.rb', line 3

def handler(method_name)
  new.handler(method_name)
end

Instance Method Details

#handler(method_name) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/rack/tracker/handler_delegator.rb', line 35

def handler(method_name)
  return method_name if method_name.kind_of?(Class)

  _handler = method_name.to_s.camelize
  ["Rack::Tracker::#{_handler}", _handler].detect do |const|
    begin
      return const.constantize
    rescue NameError
      false
    end
  end

  raise ArgumentError, "No such Handler: #{_handler}"
end

#respond_to?(method_name, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/tracker/handler_delegator.rb', line 31

def respond_to?(method_name, include_private=false)
  handler(method_name).respond_to?(:track, include_private)
end

#write_event(event) ⇒ Object 



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# File 'lib/rack/tracker/handler_delegator.rb', line 22

def write_event(event)
  event.deep_stringify_keys! # for consistent hash access use strings (keys from the session are always strings anyway)
  if env.key?('tracker')
    self.env['tracker'].deep_merge!(event) { |key, old, new| Array.wrap(old) + Array.wrap(new) }
  else
    self.env['tracker'] = event
  end
end