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Added support for csv-headers returned from promise resolution. #219

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Added support for csv-headers returned from promise resolution. #219

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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,7 @@ ngCsv attributes
----------------
* ng-csv: The data array - Could be an expression, a value or a promise.
* filename: The filename that will be stored on the user's computer
* csv-header: If provided, would use this attribute to create a header row
* csv-header: If provided, would use this attribute to create a header row. Could be an expression, a value or a promise.

```html
<button type="button" ng-csv="getArray" csv-header="['Field A', 'Field B', 'Field C']" filename="test.csv">Export</button>
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28 changes: 21 additions & 7 deletions src/ng-csv/services/csv-service.js
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Expand Up @@ -72,14 +72,28 @@ angular.module('ngCsv.services').
var csv = "";
var csvContent = "";

var dataPromise = $q.when(data).then(function (responseData) {
var csvResolvables = [data];
if (angular.isDefined(options.header) && options.header) {
csvResolvables.push(options.header);
}

var dataPromise = $q.all(csvResolvables).then(function (responseDataAll) {
//responseData = angular.copy(responseData);//moved to row creation
// Check if there's a provided header array
if (angular.isDefined(options.header) && options.header) {
if (angular.isDefined(responseDataAll[1]) && responseDataAll[1]) {
var encodingArray, headerString;

var headerData = [];

if (angular.isArray(responseDataAll[1])) {
headerData = responseDataAll[1];
}
else if (angular.isFunction(responseDataAll[1])) {
headerData = responseDataAll[1]();
}

encodingArray = [];
angular.forEach(options.header, function (title, key) {
angular.forEach(headerData, function (title, key) {
this.push(that.stringifyField(title, options));
}, encodingArray);

Expand All @@ -89,11 +103,11 @@ angular.module('ngCsv.services').

var arrData = [];

if (angular.isArray(responseData)) {
arrData = responseData;
if (angular.isArray(responseDataAll[0])) {
arrData = responseDataAll[0];
}
else if (angular.isFunction(responseData)) {
arrData = responseData();
else if (angular.isFunction(responseDataAll[0])) {
arrData = responseDataAll[0]();
}

// Check if using keys as labels
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