Tableau JS API usage for Syncing Metric Names between datasources

test.js

/**********************************************************
 *
 *       Currently does not work due to http://community.tableau.com/thread/131070 
 *
 *********************************************************/




var viz = tableau.VizManager.getVizs()[0]
var worksheets = viz.getWorkbook().getActiveSheet().getWorksheets()
var worksheetList = [];
for(var i=0;i<worksheets.length;i++){
  worksheets[i].getFiltersAsync().then(function(worksheetFilters){
    console.log(worksheetFilters)
    var worksheetFilterValues = new Array();
    var worksheetFilterValuesMap = new Array();
    for(var j=0;j<worksheetFilters.length;j++){
      if(worksheetFilters[j].getFieldName()==="Measure Names"){
        worksheetFilterValues = worksheetFilters[j].getAppliedValues()
        for(var k=0;k<worksheetFilterValues.length;k++){
          worksheetFilterValuesMap[worksheetFilterValues[k]['formattedValue']] = worksheetFilterValues[k]['value']
        }
        worksheetList.push({
          "worksheet":worksheetFilters[j].getWorksheet(),
          "Measure Names":worksheetFilterValuesMap
        })
      }
    }
  })
}

/**********************************************************
 *
 *       Filters below use SuperStore dataset
 *
 *********************************************************/


// Change based on "value" (ie. full name including datasource)
var _tmpArray = new Array(worksheetList[0]["Measure Names"]["Unit Price"]);
worksheetList[0]["worksheet"].applyFilterAsync("Measure Names", _tmpArray, tableau.FilterUpdateType.REPLACE)
        .then(function(a){console.log(a)})
        .otherwise(function(e){console.log(e)});

// Change based on "formattedValue" (ie. friendly name visable in filter dropdown)
var _tmpArray = new Array("Unit Price"); // This is to be sure I get it right
worksheetList[0]["worksheet"].applyFilterAsync("Measure Names", _tmpArray, tableau.FilterUpdateType.REPLACE)
        .then(function(a){console.log(a)})
        .otherwise(function(e){console.log(e)});

// This one works as it uses a different field
worksheetList[0]["worksheet"].applyFilterAsync("Continent", ["Africa","Asia"], tableau.FilterUpdateType.REPLACE)
        .then(function(a){console.log(a)})
        .otherwise(function(e){console.log(e)});