SummaryWithoutPromises.coffee

# Common way of making async call via underlying Store
loadCompanies: ->
  @companyService.loadCompanies(
    callback: ( records, operation, success ) ->
      if( success )
        # Do something with results
      else
        # Do something with the error

      # Do something whether the call succeeded or failed
  )

# Common way of making async call via underlying Ext.Ajax call
loadCompanies: ->
  @companyService.loadCompanies(
    success: ( response ) ->
      results = Ext.decode( response.responseText )
      # Do something with results
      # Do something whether the call succeeded or failed

    failure: ( response ) ->
      # Do something with the error
      # Do something whether the call succeeded or failed
)

# Ill-advised attempt to make a chain of async call via underlying Store
loadInitialData: ->
  @companyService.loadCompanies(
    callback: ( companyRecords, operation, success ) ->
      if( success )
        @companyService.loadFeaturedProducts(
          callback: ( productRecords, operation, success ) ->
            if( success )
              # Do something with both sets of results
            else
              # Do something with the error

              # Do something whether both calls succeeded or failed
        )

      else
        # Do something with the error
        # Do something whether both calls succeeded or failed

  )