PromiseStoreCalls.coffee

# Using a Promise
loadCompanies: ->
  @companyService.loadCompanies().then(
    success: ( records ) ->
      # Do something with results
    failure: ( error ) ->
      # Do something with the error
  ).always( ->
    # Do something whether the call succeeded or failed
  )

# Service method using a Store and returning a Promise
loadCompanies: ->
  deferred = Ext.create( 'Deft.Deferred' )

  @companyStore.load(
    callback: ( records, operation, success ) ->
      if( success )
        deferred.resolve( records )
      else
        deferred.reject( "Error loading Companies." )
  )

  return deferred.promise

# Service method using an Ext.Ajax call and returning a Promise
loadCompanies: ->
  deferred = Ext.create( 'Deft.Deferred' )

  Ext.Ajax.request(
    url: "company/loadCompanies.json"
    success: ( response ) ->
      records = Ext.decode( response.responseText )
      deferred.resolve( records )
    failure: ( response ) ->
      deferred.reject( "Error loading Companies." )
  )

  return deferred.promise