gistfile1.rb

def can_edit? site
	
	value=permissions.find(:first, 
		:conditions => ["`permissions`.content_id = ? and `permissions`.content_type = ?",site.id, site.class.to_s ],
		:order => 'FIND_IN_SET(`owner_type`, "user,section"),  `permissions`.rank DESC'
	) ||  ((section)? section.permissions.find(:first, 
		:conditions => ["`permissions`.content_id = ? and `permissions`.content_type = ?",site.id, site.class.to_s ],
		:order => 'FIND_IN_SET(`owner_type`, "user,section"), `permissions`.rank DESC'
	) : nil )
	
	if !value.nil? 
		(value.rank > 2)
	else 
		false 
	end
	
end