template for iterator

gistfile1.nim

iterator pairs*(s: TSession, request: TRequest, response:PResponse): tuple[key, value: string] =
  ## iterates over every (key, value) pair in the session `s`.
  var sessionId: string  
  sessionId = getSessionId(request, response)  
  var list = session.redisCon.hGetAll("session:" & sessionId)
  if not isNil(list):
    var i = 0
    while i < list.len and not isNil(list[i]):
      yield (list[i], list[i+1])
      i = i + 2

template data*(s: TSession): expr =
  bind pairs, session
  session.pairs(request, response)