I want to read a array value inside factory in angularjs - angularjs

Question

I am trying to read value in array in factory but I am unable to do so. I am using ng-grid and when I click on one row I get selecteditems list which I pass in another controller where I call a factory service in which I pass that as a parameter but that parameter in the factory stays as array and when I read it using index it shows blank.
My code is as below -
myNgApp.controller('MyGrid', ['$scope', function ($scope) {
$scope.mySelections = [];
$scope.mySelItems = [];
$scope.myData = [{ Reference: 12, Customer: "fff", Title: "sd", Task: "Enter Details", Received: "Today", Due: "01/09/2014" },
{ Reference: 7899, Customer: "eee", Title: "dsd", Task: "Enter Details", Received: "Yesterday", Due: "05/09/2014" }];
$scope.gridOptions = {
data: 'myData',
checkboxHeaderTemplate: '<input class="ngSelectionHeader" type="checkbox" ng-model="allSelected" ng-change="toggleSelectAll(allSelected)"/>',
selectWithCheckboxOnly: true,
showSelectionCheckbox: true,
selectedItems: $scope.mySelections,
multiSelect: true,
columnDefs: [{ field: 'Reference', displayName: 'Reference', width: '*' }, { field: 'Customer', displayName: 'Customer', width: '**' }, { field: 'Title', displayName: 'Title', width: '***' }, { field: 'Task', displayName: 'Task', width: '***' }, { field: 'Received', displayName: 'Received', width: '**' }, { field: 'Due', displayName: 'Due', width: '**' }],
showGroupPanel: true,
enableCellSelection: false,
enableRowSelection: true,
enableCellEditOnFocus: false,
enablePinning: true,
showColumnMenu: true,
showFilter: true,
enableColumnResize: true,
enableColumnReordering: true,
maintainColumnRatios: true,
afterSelectionChange: function () {
angular.forEach($scope.mySelections, function (item) {
if ($scope.mySelItems.length == 0) {
$scope.mySelItems.push(item.Title)
}
else {
$scope.mySelItems[0] = item.Title
}
});
}
};
}]);
myNgApp.factory('myPreviewDataService', function () {
return function (x) {
var arr = [x, "Apple", "Banana", "Orange"];
return arr
};
});
myNgApp.factory('myPreviewTplService', function () {
return function () {
return '<div><div class="ngPreviewItems" ng-repeat="item in items">{{item}}</div></div>';
};
});
myNgApp.directive('showPreview', function ($compile) {
return {
scope: true,
link: function (scope, element, attrs) {
var el;
attrs.$observe('template', function (tpl) {
if (angular.isDefined(tpl)) {
// compile the provided template against the current scope
el = $compile(tpl)(scope);
// stupid way of emptying the element
element.html("");
// add the template content
element.append(el);
}
});
}
};
});
myNgApp.controller('myPreviewController', function ($scope, myPreviewDataService, myPreviewTplService) {
//$scope.showContent = function () {
$scope.items = myPreviewDataService($scope.mySelItems);
$scope.template = myPreviewTplService();
//};
});
here $scope.mySelItems is from ng grid controller that gets updated when we select a checkbox.
What I get is an array but I am unable to read its content, when I display the array as it is it gets displayed like ["test"] but when I try to read it x[0] in myPreviewDataService factory or by $scope.mySelItems[0] in myPreviewController then I get blank. I am not able to figure out why this is happening

Answer 1

I was able to solve it. In myPreviewDataService factory I changed the array elements from string to array
var arr = [x, "Apple", "Banana", "Orange"];
changed to
var arr = [x, ["Apple"], ["Banana"], ["Orange"]];
and in myPreviewTplService factory I changed {{item}} to {{item[0]}}
it worked.
P.S I think we can also use ng switch based on condition in myPreviewTplService factory based on the type of item, I tried to do it but I was not able to do so and worked with my earlier solution.