Angular Ng-If Ng-Style not changing the table font colour - html

Question

I have the following code which is an ionic list which populates the data retrieved. Im trying to colour code it into different colours based on the Status reponse.
<ion-list>
<ion-item ng-repeat="test in tests" class ="item-text-wrap" style="height:40%">
<a href="#/tab/test/test-detail/{{test.ID}}">
<div style="width:80%; float:left;">
<table>
<span ng-if="test.Status == 'Cleared'" ng-style="color:green">
<tr>
<td> <strong>Remark: </strong></td>
<td style="padding:3px">{{test.Remark}}</td>
</tr>
<tr>
<td><strong>Status:</strong></td>
<td style="padding:3px">{{test.Status}}</td>
</tr>
</span>
</table>
</div>
</ion-item>
</ion-list>
But the colour of the table data still does not change. What could be the problem? Am i using the ng-if and ng-style wrongly? Thanks!
Update 1: Using the insights provided by #SSH, i updated my controller with the following codes:
Html:
<ion-list>
<ion-item ng-repeat="test in tests" class ="item-text-wrap" style="height:40%">
<a href="#/tab/test/test-detail/{{test.ID}}">
<div style="width:80%; float:left;">
<table>
<span ng-style="calculateStyle()">
<tr>
<td> <strong>Remark: </strong></td>
<td style="padding:3px">{{test.Remark}}</td>
</tr>
<tr>
<td><strong>Status:</strong></td>
<td style="padding:3px">{{test.Status}}</td>
</tr>
</span>
</table>
</div>
</ion-item>
</ion-list>
Controller:
$scope.calculateStyle = function() {
var style={}
console.log('test3: '+$scope.tests.Status);
console.log('test6: '+$scope.Status);
if ($scope.Status == 'Cleared') {
style.color='green';
console.log('Viola');
}
else{
console.log('GG');
}
return style;
}
})
But the result returned in the controllers are still null/undefined. test3 and test6 returned me 'undefined' while the If statement returned me 'GG'. What could be the problem? Thanks!
Update 2: Using SSH answers, i modified to the following:
Html:
<span ng-style="calculateStyle(test)">
Controller:
$scope.calculateStyle = function(test) {
var style={}
if (test.Status == 'Cleared') style.color='green';
return style;
}
But the test variable at the controller is still undefined. Using $scope.test doesn't work too. What could be the problem?

Answer 1

Yes you do use it wrongly. You need to pass an object consisting of style names and conditions:
<span ng-style="{color:(test.Status == 'Cleared')?'green'}">
or better use a function in your controller to calculate and return style object, to keep your template clean:
<span ng-style="calculateStyle(test)">
and then in your controller definition
$scope.calculateStyle = function(test) {
var style={}
if (test.Status == 'Cleared') style.color='green';
return style;
}