/** Datasources loader */  
	vm.loadDatasources = function(category, filter){
	//...
	 // FILTER DISPATCHER
      switch(category){
        case "month":
          // load datasources filter by month and year
          console.log('LOAD DATASOURCES BY MONTH');
          break;

        case "central":
          console.log('LOAD DATASOURCES BY CENTRAL: ' + filter);
          vm.getDataFromDataSource('DS_CENTRALES', vm.DS_CentralesCallBack, [{field:'CENTRAL',op:'=',exp: filter}]);
          vm.getDataFromDataSource('DS_AEROS', vm.DS_AerosCallBack, [{field:'CENTRAL',op:'=',exp: filter}]);            
          break;

        case "graph":
          // load datasources of production graph with selected interval, adding month and year, and central too, 
          console.log('LOAD DATASOURCES BY MONTH,CENTRAL AND GRAPH...');
          break;

        case "aero":
          // load aero datasources filter by month and year and central
          console.log('LOAD DATASOURCES BY MONTH,CENTRAL AND AERO...');
          break;

         case "all":
          // initial loading of datasources
          console.log('LOAD DATASOURCES ALL , INIT CASE');
          vm.getDataFromDataSource('DS_PLANTA', vm.DS_PlantaCallBack, [{field:'PLANTA',op:'=',exp:filter}]);
          break;
      }
//...
// See one CallBack function.

	/** Datasource DS_Planta callback Function */
	vm.DS_PlantaCallBack = function( data ){   
    	
        // set data        	
    	vm.indicators = JSON.parse(data); // variable directamente enlaza con la visualización
  		console.log('Indicators data: ' +  vm.indicators);
   
      	// load the related datasources, AEROS and PRODUCTION depends on central data. 
      	// for AEROS, we filter by PLANT and from central selection we can filter both production and aeros.
      	vm.getDataFromDataSource('DS_AEROS', vm.DS_AerosCallBack ,[{field:'CENTRAL',op:'=',exp: vm.centrals[0].CENTRAL}]);
      	
      	// set current Central
      	vm.currentCentral = vm.centrals[0].CENTRAL;
      	vm.currentCentralName = vm.centrals[0].NOMBRE_CENTRAL;
      
      	// for production we mount initially last 24hours for the first Central Available
      	let now = moment().toISOString();
      	let last24h = moment(now).subtract(24, 'hour').toISOString();
      	vm.getDataFromDataSource('DS_PRODUCCION', vm.DS_ProduccionCallBack, [{field:'CENTRAL',op:'=',exp:vm.centrals[0].CENTRAL},{field: 'FECHA', op: '>=' , exp: "TIMESTAMP('"+ last24h +"')"},{field: 'FECHA', op: '<=' , exp: "TIMESTAMP('"+ now +"')"}]);

		// do animations
      	setTimeout(function(){ 
           	ENEL_Controller.animateCounters('','countIndicators');        	
          	ENEL_Controller.animateProgressBars('','progressIndicators');
        }, 50)    	
    };
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