votePseudoCode.coffee

View
  clickVote: (event)->
    direction = event.direction
    oppositeDirection = if direction is "up" then "down" else "up"

    if currentUser.hasVoted(@model, direction)
      @model.removeVote(direction)
    else
      if currentUser.hasVoted(@model, oppositeDirection)
        @model.removeVote(oppositeDirection)
      
      @model.addVote(direction)

Model
  addVote: (direction) ->
    if direction is "up"
      up_voter_ids << currentUser.id
      @incrementScore()
    else if direction is "down"
      down_voter_ids << currentUser.id
      @decrementScore()
   
  removeVote: (direction, silent=false) ->
    if direction is "up"
      up_voter_ids = up_voter_ids - currentUser.id
      @decrementScore()
    else if direction is "down"
      down_voter_ids = down_voter_ids - currentUser.id
      @incrementScore()