adding fully_authorized? method to Ability to check if conditions are considered in authorize! call

lib/cancan/ability.rb

@@ -219,6 +219,8 @@ module CanCan
       if cannot?(action, subject, *args)
         message ||= unauthorized_message(action, subject)
         raise AccessDenied.new(message, action, subject)
+      else
+        fully_authorized!(action, subject) unless subject.kind_of?(Symbol) && has_instance_conditions?(action, subject)
       end
     end
 
@@ -246,6 +248,20 @@ module CanCan
       relevant_rules(action, subject).any?(&:only_raw_sql?)
     end
 
+    def has_instance_conditions?(action, subject)
+      relevant_rules(action, subject).any?(&:instance_conditions?)
+    end
+
+    def fully_authorized?(action, subject)
+      @fully_authorized ||= []
+      @fully_authorized.include? [action, subject]
+    end
+
+    def fully_authorized!(action, subject)
+      @fully_authorized ||= []
+      @fully_authorized << [action, subject]
+    end
+
     private
 
     def unauthorized_message_keys(action, subject)

lib/cancan/rule.rb

@@ -51,6 +51,10 @@ module CanCan
       @block.nil? && !conditions_empty? && !@conditions.kind_of?(Hash)
     end
 
+    def instance_conditions?
+      @block || !conditions_empty?
+    end
+
     def conditions_empty?
       @conditions == {} || @conditions.nil?
     end