def permission_by_member_role
      m = members_role
      trace 'authorize_by_member_role?', 0, "#{user.try(:name)}:#{m}"
      p = member_permissions[m]
      trace 'authorize_by_role?', 1, "permissions: #{p.inspect}"      
      p && authorization(p)
    end
def permission_by_member_role
      m = members_role
      trace 'authorize_by_member_role?', 0, "#{user.try(:name)}:#{m}"
      p = member_permissions[m]
      trace 'authorize_by_role?', 1, "permissions: #{p.inspect}"      
      p && authorization(p)
    end
Checks is a member is authorized
 You will need to implement members_role in permissions yourself