I have code behind a button that, once pressed, the button is meant to call a function to throw a pop up on screen. Either way if the user selects ok or dance, another function will be called. The problem is neither of these two functions are being called. Am I missing something very obvious?
$scope.user = {};
// A confirm dialog
$scope.showConfirm = function() {
var confirmPopup = $ionicPopup.confirm({
title: 'T&Cs',
template: 'Do you agree to the terms and conditions?'
});
confirmPopup.then(function(res) {
if( res ) {
signIn(user)
} else {
logout();
}
});
};
When working in javascript you need to understand scope. This is best explained here... w3schools.com/js/js_scope.asp.
In brief:
$scope is predefined in a controller (angular) and as such is available anywhere in that one controller. $rootScope is available in all controllers. Please see this example of scope:
.controller('ctrl1', function($scope, $rootScope) {
var a = 1;
$scope.a = 2;
$rootScope.a = 3;
var funct1 = function () {
var b = 4;
$scope.b = 5;
$rootScope.b = 6;
console.log(a) // returns 1 as inherits scope
console.log($scope.a) // returns 2 as inherits $scope scope
console.log($rootScope.a) // returns 3 as inherits $rootScope scope
console.log(b) // returns 4 as shares scope
console.log($scope.b) // returns 5 as inherits $scope scope
console.log($rootScope.b) // returns 6 as inherits $rootScope scope
}
funct1();
console.log(a); // returns 1 as shares scope
console.log($scope.a); // returns 2 as inherits $scope scope
console.log($rootScope.a); // returns 3 as inherits $rootScope scope
console.log(b); // returns undefined as b is defined out of scope.
console.log($scope.b); // returns 5 as inherits $scope scope
console.log($rootScope.b); // returns 6 as inherits $rootScope scope
})
Assuming the code in ctrl1 has already executed the only defined variables accessible from other controllers would be $rootScope.a and $rootScope.b. All others would be out of scope and as such undefined.
This is an oversimplification but serves to explain $scope and $rootScope in angular to beginners.
A common mistake is to confuse the definition of variables and objects $scope
and $rootScope
with var x = y;
Check this first ie users vs $scope.users, if this is ok then look at scope as the next test.
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