работа с функциями javascript возвращение результата

var result = response.collection.collection.getItems()[0];
LogCurrencyRate = result.get("Rate");

function(response) {...}

var result = response.collection.collection.getItems()[0];

function(response) {...}

Terrasoft.chain(
									function(next) {
										//запрос
										var selectRate = Ext.create("Terrasoft.EntitySchemaQuery", {rootSchemaName: "CurrencyRate"});
										selectRate.addColumn("Rate");
										var _tomorrow = new Date();
										_tomorrow.setDate(_tomorrow.getDate() + 1);
										var _yesterday = new Date();
										_yesterday.setDate(_yesterday.getDate() - 1);
 
										_tomorrow = Terrasoft.endOfDay(_tomorrow);
										_yesterday = Terrasoft.startOfDay(_yesterday);
 
										// если у нас рубль то берем курс валюты сверху
										if (LogCurrencyRow.value === LogConstants.Currency.rub) {
											selectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
													this.Terrasoft.ComparisonType.EQUAL, "Currency", LogCurrencySCC.value));
										} else {
											selectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
													this.Terrasoft.ComparisonType.EQUAL, "Currency", LogCurrencyRow.value));
										}
										selectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
												this.Terrasoft.ComparisonType.GREATER, "StartDate", _yesterday));
										selectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
												this.Terrasoft.ComparisonType.LESS, "StartDate", _tomorrow));
										selectRate.getEntityCollection(function(response) {
											if (response && response.success) {
												if (response.collection.getCount() > 0) {
													var result = response.collection.getItems()[0];
													this.set("LogCurRate2SCC", result.get("Rate"));
													this.save({isSilent: true});
													next();
												}
											}
										}, this);
									},
									function(next) {
										//обработка данных запросов
										if (this.get("LogCurrencyRow").value === 0 || this.get("LogCurrencyRow").value === "") {
											var currencyIN = null;
											switch (LogCurrencyRow.value) {
												//доллар
												case (LogConstants.Currency.usd) :
													currencyIN = "usd";
													break;
												//евро
												case (LogConstants.Currency.eur) :
													currencyIN = "eur";
													break;
											}
											var serviceData = {
												param: currencyIN
											};
											ServiceHelper.callService("LogGetCurrencyCBRF", "getCurrencyFromCBRF",
												function(response) {
													if (response.getCurrencyFromCBRFResult >= 0) {
														this.set("LogCurRate2SCC", response.getCurrencyFromCBRFResult);
													} else {
														this.showInformationDialog(response.getCurrencyFromCBRFResult);
													}
												},
												serviceData, this);
											this.save({isSilent: true});
											next();
										}
										else {
											next();
										}
									},
									function(next) {
										//вычисляем итоговую стоимость в валюте РСП
										this.calculateCostCur(LogCurrencySCC, LogCurrencyRow, this.get("LogCurRate2SCC"));
										next();
									},
								this);

debugger;
LogCurrencyRate2 = this.getCurrencyRate(LogCurrencyRow.value);
									if (LogCurrencyRate2 > 0) {
										LogTotalCostRowCur = (this.get("LogTotalCostRow") * LogCurrencyRate) / LogCurrencyRate2;
									}

getCurrencyRate: function(LogCurrencyRow) {
				debugger;
				var LogCurrencyRate = 0;
				var _tomorrow = new Date();
 
				_tomorrow.setDate(_tomorrow.getDate() + 1);
				var _yesterday = new Date();
				_yesterday.setDate(_yesterday.getDate() - 1);
 
				_tomorrow = Terrasoft.endOfDay(_tomorrow);
				_yesterday = Terrasoft.startOfDay(_yesterday);
 
				Terrasoft.chain(
					function(next) {
						//запрос
						var SelectRate = Ext.create("Terrasoft.EntitySchemaQuery", {rootSchemaName: "CurrencyRate"});
						SelectRate.addColumn("Rate");
 
						SelectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
								this.Terrasoft.ComparisonType.EQUAL, "Currency", LogCurrencyRow));
						SelectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
								this.Terrasoft.ComparisonType.GREATER, "StartDate", _yesterday));
						SelectRate.filters.addItem(Terrasoft.createColumnFilterWithParameter(
								this.Terrasoft.ComparisonType.LESS, "StartDate", _tomorrow));
 
						SelectRate.getEntityCollection(function(response) {
							if (response && response.success) {
								if (response.collection.getCount() > 0) {
									var result = response.collection.getItems()[0];
									LogCurrencyRate = result.get("Rate");
									next();
								}
							}
						}, this);
 
					},
					function(next) {
						return LogCurrencyRate;
					},
				this);
			},

test: function() {
	var esq = Ext.create("Terrasoft.EntitySchemaQuery", {
		rootSchemaName: "Lead"
	});
	esq.addColumn("CreatedOn");
	esq.execute(function(response){
		if(response.success){
			this.save({isSilent: true});
			this.other();
		}
	}.bind(this));
},
other: function() {
	alert("!");
}