I have a function validateSesion that i need to call every time a controller is executed.
There is a way to trigger the function without putting the call to the function in all the controllers?
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Please post what you tried?Shashank Agrawal– Shashank Agrawal2016-07-28 16:10:22 +00:00Commented Jul 28, 2016 at 16:10
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are you sure that you want to call a function every time a controller is instantiated? it's common practice to have multiple controllers on a page, which could mean quite a few more calls to said function than expected...Claies– Claies2016-07-28 16:15:23 +00:00Commented Jul 28, 2016 at 16:15
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It's probably more likely that you have a function you want to execute for each new page a user visits, which isn't the same as every time a controller is instantiated. this kind of task is typically done within whichever router you are using.Claies– Claies2016-07-28 16:16:30 +00:00Commented Jul 28, 2016 at 16:16
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1 Answer
The way I would recommend accomplishing such a call would be to create event handlers for your route changes. This way every time you change your route or state (if you are using ui-router) you can run your code.
You would place this in your app's run function and attach the event handlers to the $rootScope as shown below:
angular.module('app', [
//Your Dependencies Here
]).run(init);
function init($rootScope, sessionService) {
//ngRoute
$rootScope.$on('$routeChangeStart', function (angularEvent, next, current) {
sessionService.validateSession();
});
//ui-router
$rootScope.$on('$stateChangeStart', function (event, toState, toParams, fromState, fromParams) {
sessionService.validateSession();
});
}
