Module: ActionController::Base::IdentityMap::InstanceMethods

Included in:
ActionController::Base
Defined in:
lib/identity_map/action_controller/dispatcher.rb

Instance Method Summary collapse

Instance Method Details

#with_identity_map(fresh = true) ⇒ Object

Execute block with identity map.

If it called with true, then new instance of identity map would be used regardless of any present.

If it called with false, then it only ensures that identity map created if absent.

Default is true

Typical usage is around filter, which is most times better than direct call.

Usage:

class ThingsController
  def action1
    with_identity_map do
      #some_actions
    end
  end
  #around_filter :with_identity_map, :only => :action2
  use_identity_map :only => :action2
  def action2
    #some_actions
  end
end

Method declared as a helper method, so could be used in a views.



31
32
33
34
35
 
# File 'lib/identity_map/action_controller/dispatcher.rb', line 31

def with_identity_map( fresh = true )
  ActiveRecord::Base.with_id_map(fresh) {
    yield
  }
end

#without_identity_map ⇒ Object

Temporary disables identity map.

Could be used if identity map introduced undesired behaviour.

Usage:

class ThingsController
  def action1
    without_identity_map do
      #some_actions
    end
  end
  around_filter :without_identity_map, :only => :action2
  def action2
    #some_actions
  end
end

Method declared as a helper method, so could be used in a views.



54
55
56
57
58
 
# File 'lib/identity_map/action_controller/dispatcher.rb', line 54

def without_identity_map
  ActiveRecord::Base.without_id_map {
    yield
  }
end