Develop Reference

ngRepeat:iexp Invalid Expression when render the data

Html
<tr ng-repeat="sale as examples">
<td class="text-right"> #{{sale.sales_person}}</td>
<td class="text-right"> #{{sale.sales_total}}</td>
<td class="text-right"> #{{sale.sales_target_amount}}</td>
<td class="text-right"> #{{sale.sales_target_total}}</td>
</tr>
JS
$scope.getMonthlySalesTarget = function () {
$scope.sales_target_loading = true;
bz_Dashboard.getMonthlySalesTarget($scope.sales_target.startdate, $scope.sales_target.enddate).then(function (data) {
$scope.sales_target.data = angular.copy(data);
$scope.examples = $scope.sales_target.data;
console.log($scope.examples);
}).finally(function () {
$scope.sales_target_loading = false;
});
};
I'm trying to load the using ng-repeat but I faced that error. The $scope.examples stored a lists of data as.
Json
[{"sales_total":"386.90","sales_target_amount":"30000.00","sales_person":"Tony","sales_target_total":29613.1}]
I suspecting the error is triggered by data access issue so I did try to add the $index as sale as examples by $index but it does not work.

Try to use 'in' instead of 'as' in ng-repeat .
ng-repeat="sale in examples"

Formatting data before render it

I am displaying some data in the view, but I need to formatted first, I was doing something like
val.toFixed(2) and that is OK, it works but the problem is that val sometimes comes with letters, and toFixed(2) is not taking that into account so is not displaying the letters.
So I need something that takes into account letters and numbers, the letters don't have to change, only the numbers which comes like 234235.345345435, and obviously I need it like this 234235.34.
Here is some of the code I am using
<table>
<tr>
<th ng-repeat='header in headers'>{{header.th}}</th>
</tr>
<tr>
<td ng-repeat='data in headers'>
<div ng-repeat='inner in data.td'>
<span ng-repeat='(prop, val) in inner'>{{val.toFixed(2)}}</span>
</div>
</td>
</tr>
</table>
and in the controller
$scope.LoadMyJson = function() {
for (var s in myJson){
$scope.data.push(s);
if ($scope.headers.length < 1)
for (var prop in myJson[s]){
prop.data = [];
$scope.headers.push({th:prop, td: []});
}
}
for (var s in $scope.data){
for (var prop in $scope.headers){
var header = $scope.headers[prop].th;
var data = myJson[$scope.data[s]][header];
$scope.headers[prop].td.push(data);
console.log($scope.headers[prop].td);
}
}
};
and I prepared this Fiddle
the way it is right now, is displaying the table properly, but as you see, the table is missing the name, it is because of the toFixed method.
So, what can I do ?

Create a custom filter to use on your template.
<table>
<tr>
<th ng-repeat='header in headers'>{{header.th}}</th>
</tr>
<tr>
<td ng-repeat='data in headers'>
<div ng-repeat='inner in data.td'>
<span ng-repeat='(prop, val) in inner'>{{val|formatValue}}</span>
</div>
</td>
</tr>
</table>
angular.module('whatever').filter('formatValue', function () {
return function (value) {
if (isNaN(parseFloat(value))) {
return value;
}
return parseFloat(value).toFixed(2);
}
});

You can try this :
That is a clean way to render formated data in view using angularjs as MVC
frontend framework :
Create a filter in your angular application.
Include your filter in your index.html.
use your filter like this : {{somedata | filterName}}
That is a simple angular filter to solve your problem, hope it will help you :
angular.module('app')
.filter('formatHeader', function() {
return function(data) {
if(angular.isNumber(data)) {
return data.toFixed(2);
}
return data;
}
});
And us it like this :
<table>
<tr>
<th ng-repeat='header in headers'>{{header.th}}</th>
</tr>
<tr>
<td ng-repeat='data in headers'>
<div ng-repeat='inner in data.td'>
<span ng-repeat='(prop, val) in inner'>{{val | formatHeader}}</span>
</div>
</td>
</tr>
You can take a look about these references :
angular functions
filter doc.
angular tutorials

AngularJS and XML, how to render it?

I am working along DB guys, they are sending me the data thru XML, and depending the kind of element they specify is what I need to display in the view.
The code you will see is a dynamic table
<table>
<thead>
<tr>
<th ng-repeat="column in cols">
<span>{{column}}</span>
</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="row in rows">
<td ng-repeat="column in cols"
ng-init="isXX = column.indexOf('XX') === 0">
<span ng-if="!isXX">{{row[column]}}</span>
<button ng-if="isXX" class="btn btn-xs btn-blue"
ng-click="fillOpen()">
{{column.substring(3).replace('_', ' ')}}
</button>
</td>
</tr>
</tbody>
</table>
and here is what I have in the controller
ReportsFactory.pendingBets(reportParam).then(function(data) {
if (data.length) {
gridInfo = _.forEach(data, function(item) {return item;});
$scope.rows = gridInfo;
$scope.cols = Object.keys($scope.rows[0]);
}
}
as you can see here I have this ng-init
ng-init="isXX = column.indexOf('XX') === 0" where I am telling the app, if the property I am receiving comes with XX at the index, then display a button <button ng-if="isXX" ng-click="fillOpen()">...</button> but so far, I have some more props coming with XX at the beginning, so I need to do it more dynamic.
This is how my view looks so far
what I need to know, is how to read that XML, this is the XML printed in the Nodejs terminal
[{ BET: 57635034,
CUSTOMER: 181645,
SPORT: 'NFL',
'XX_FILL OPEN': '<element><element_type>WAGER_ACTION_BUTTON</element_type><element_call>fillOpen(57635034)</element_call><element_content/></element>',
XX_VIEW: '<element><element_type>BASIC_DROPDOWN</element_type><element_call>callThisFunction()</element_call><element_content><li>1</li><li>2</li><li>3</li><li>4</li></element_content></element>',
XX_CANCEL: '<element><element_type>BASIC_CHECKBOX</element_type><element_call/><element_content>1</element_content></element>'
}]
so, the first says
'XX_FILL OPEN': '<element><element_type>WAGER_ACTION_BUTTON</element_type><element_call>fillOpen(57635034)</element_call><element_content/></element>'
WAGER_ACTION_BUTTON should be a button
the second one says
BASIC_DROPDOWN that should be a dropdown and so on, so, how should I do in order to display the proper HTML element depending on what the XML says ?
Any suggestions ?

if I understood you correctly you want to dynamically render the xml or html content to your view... I assume that element and element type are directive you have or something.
use
ngBindHtml
e.g:
<div class="col-xs-offset-1 m-r-offset-8 p-t-offset-2 font-l-16">
<span mathjax-bind ng-bind-html="question.question.body"></span>
</div>
or you might need to use the trustAsHtml function
<div class="col-xs-offset-1 m-r-offset-8 p-t-offset-2 font-l-16">
<span mathjax-bind ng-bind-html="trustAsHtml(question.question.body)"></span>
</div>
$scope.trustAsHtml = function (val) {
return $sce.trustAsHtml(val);
};
this will take your string xml (html) code and render it...
you could always build a personalize directive and use $compile as well like:
app.directive('ngHtmlCompile',function ($compile) {
return function(scope, element, attrs) {
scope.$watch(
function(scope) {
// watch the 'compile' expression for changes
return scope.$eval(attrs.ngHtmlCompile);
},
function(value) {
// when the 'compile' expression changes
// assign it into the current DOM
element.html(value);
// compile the new DOM and link it to the current
// scope.
// NOTE: we only compile .childNodes so that
// we don't get into infinite loop compiling ourselves
$compile(element.contents())(scope);
}
);
};
});
and in the code just call the ng-html-compile... no need for $sce

How do I do an if with value in mustache.js?

I have the following code:
<script id="tplPLDSemanal" type="text/template">
{{#.}}
<tr>
<td width="20%">{{Peso}}</td>
<td width="20%">{{SECO}}</td>
<td width="20%">{{Sul}}</td>
<td width="20%">{{Nordeste}}</td>
<td width="20%">{{Norte}}</td>
</tr>
{{/.}}
</script>
and I would like to do something like the following, but it does not work
if ({{Peso}} == 2)
<td width="20%">Leve</td>
else if({{Peso}} == 4)
<td width="20%">Media</td>
else
<td width="20%">Pesado</td>
anyone could help me?

Mustache allows you to use functions inside the template, you can add a function to your data and add the logic you want inside the template.
Consider the following template:
<script id="template" type="text/template">
{{#.}}
<tr>
<td width="20%">{{checkPeso}}</td>
<td width="20%">{{SECO}}</td>
<td width="20%">{{Sul}}</td>
<td width="20%">{{Nordeste}}</td>
<td width="20%">{{Norte}}</td>
</tr>
{{/.}}
</script>
<table id="target"></table>
The first variable is checkPeso which is the name of the function we will add to our data.
Consider the following data:
var data = [];
data.push({'SECO': 'val1a', 'Sul': 'val1b', 'Nordeste': 'val1c', 'Norte': 'val1d', 'peso': 0});
data.push({'SECO': 'val2a', 'Sul': 'val2b', 'Nordeste': 'val2c', 'Norte': 'val2d', 'peso': 2});
data.push({'SECO': 'val3a', 'Sul': 'val3b', 'Nordeste': 'val3c', 'Norte': 'val3d', 'peso': 4});
You simply add the function to the data object with the name checkPeso. Inside the function you have access to the data that is being rendered and you can access the data via this.
data.checkPeso = function () {
if (this.peso === 2) return 'Leve';
if (this.peso === 4) return 'Media';
return 'Pesado';
};
Then, you render as usual your Mustache template:
var template = $('#template').html();
Mustache.parse(template); // optional, speeds up future uses
var rendered = Mustache.render(template, data);
$('#target').html(rendered);
See full demo here
Note: As it is correctly stated, Mustache is logic-less but it allows you to use functions and so you can add logic in your template.

Knockout.js: Updating objects loaded with mapping plugin

I want to render a table containing a list of objects my server is sending me. I'm currently doing this:
<table>
<thead>
<tr>
<th>id</th>
<th>Name</th>
<th>Status</th>
</tr>
</thead>
<tbody data-bind="foreach: services">
<tr>
<td data-bind="text: id"></td>
<td data-bind="text: name"></td>
<td data-bind="text: status"></td>
</tr>
</tbody>
</table>
And the Knockout.js binding part:
var mappedData = komapping.fromJSON('{{{ services }}}');
ko.applyBindings({services: mappedData});
services is a variable containing JSON data and the whole page is rendered with handlebars. So far so good. I'm able to render the data received in the table.
Now the problem: I'd like to receive a notification which tells me that the status of a service has changed, and update the corresponding object within mappedData. The problem is that mappedData seems pretty opaque and I'm unable to retrieve an object and update it given its id.
Help appreciated!

Your mappedData variable at this point will be a knockout array with a bunch of objects that contain knockout observables.
So all you have to do is change the status observable in the correct object from the array.
function updateServiceStatus(id, status) {
var service = mappedData().filter(function(e) { return e.id() == id; });
if (service.length) {
service[0].status(status);
}
}

To get the object, you can write a helper function that will retrieve for you a service object. You could do something like this (assuming mappedData is an observableArray and id observable) :
function get_service_by_id(service_id){
for(var i=0;i<mappedData().length;i++){
if (mappedData()[i].id() === service_id){
return mappedData()[i];
}
}
return false;
}