React JS: component not updating after setState call

Question

I have a small responsive app that I'm playing with, just go to the library. An application is just a series of lists that are populated from the server. When a list item is clicked, the value of this item is added to the list filters at the application level, which will then be used to call up new data to populate the lists.

The problem is that I can not get my lists to be consistent with new data from the application (parent), even when called setState. Here is my code (coffee):

### 
@jsx React.DOM
###

{div, h1, h2, h4, ul, li, form, input, br, p, strong, span, a} = React.DOM

SearchApp = React.createClass
  handleTopItemClick: (filter) ->
    facet = filter.field
    filters = @state.filters
    if filters.facets[facet] and filters.facets[facet].length > 0
      filters.facets[facet].push filter.value
    else 
      filters.facets[facet] = [filter.value]

    strArr = []
    _.each filters.facets, (valArr, field) ->
      _.each valArr, (val) ->
        strArr.push "+(#{field}:\"#{val}\")" 

    @setState 
      filters: filters
      queryStr: strArr.join(' ').trim()

  getInitialState: ->
    filters:
      facets: {}
    queryStr: ''    

  render: ->
    (div {
      id: 'content'
      className: "search-wrap"
      },
      (h1 {}, "Search")
      (div
        id: 'widgets',
        (TopList
          title: 'Top Domains'
          params:
            query: @state.queryStr
            field: 'domain'
          onItemClick: @handleTopItemClick
        )
        (TopList
          title: 'Top Senders'
          params:
            query: @state.queryStr
            field: 'from'
          onItemClick: @handleTopItemClick
        )
        (TopList
          title: 'Top Recipient'
          params:
            query: @state.queryStr
            field: 'recipient'
          onItemClick: @handleTopItemClick
        ) 
      )        
    )

TopItem = React.createClass
  getDefaultProps: ->
    value: ''
    count: 0
    field: null

  render: ->
    (li {},
      (a {
        onClick: @handleClick
        className: 'top-item-filter'
        title: @props.value
        },
        (strong {}, @props.value)
        (span {}, @props.count)
      )
    )

  handleClick: (event) ->
    event.preventDefault()
    @props.onItemClick @props.value

TopList = React.createClass
  getInitialState: ->
    data: []
    params: @props.params

  componentWillReceiveProps: (nextProps) ->
    @setState params: nextProps.params

  componentWillMount: ->
    request.post("/facet").send(@state.params).end (results) =>
      @setState data: JSON.parse(results.text)

  render: ->
    itemNodes = _.map @state.data, (item) =>
      key = item.value
      TopItem
        value: item.value
        count: item.count
        key: key
        onItemClick: @handleItemClick

    (div {className: 'widget top-item'},
      (h2 {className: 'widget-header'}, "#{@props.title}")
      (ul {className: 'top-items-list'}, itemNodes)
    )

  handleItemClick: (value) ->
    @props.onItemClick
      value: value
      field: @props.params.field

React.renderComponent SearchApp(null), document.getElementById("content")

, , . , SearchApp . componentWillReceiveProps TopList, setState , , , . , nextProps . ?

Answer 1

; , . .

; componentWillMount . AJAX ; :

TopList = React.createClass
  getInitialState: ->
    data: []

  getSearchResultsFromServer: (params) ->
    request.post("/facet").send(params).end (results) =>
      if @isMounted()
        @setState data: JSON.parse(results.text) 

  componentWillReceiveProps: (nextProps) -> @getSearchResultsFromServer nextProps.params
  componentDidMount: -> @getSearchResultsFromServer @props.params

  render: ->
    itemNodes = _.map @state.data, (item) =>
      key = item.value
      TopItem
        value: item.value
        count: item.count
        key: key
        onItemClick: @handleItemClick

    (div {className: 'widget top-item'},
      (h2 {className: 'widget-header'}, "#{@props.title}")
      (ul {className: 'top-items-list'}, itemNodes)
    )

  handleItemClick: (value) ->
    @props.onItemClick
      value: value
      field: @props.params.field

ajax ; WillUnmount .