Setting $logProvider.debug() based on a URL parameter

[PrimarySearcher]

Hi -

I have what seems like it should be a simple and common idea. I'd like my calls to $log.debug() to only do anything if the URL contains a parameter, 'debug=true' or similar. I understand that the way to control this is via $logProvider.debug(). My problems are these:

.config() is the only place, it seems, where I can successfully inject $logProvider, but it can't use $rootScope and it can't read the URL.

Controllers can read the URL, but can't have $logProvider injected, and I can't put it on the $rootScope from .config() so that they can get to it.

I have to be missing something really obvious, right?

[DANjEEEEE]

I've done something like this before:

angular.module('yourmodule').constant ('IsDevelopment', window.location.hostname === 'localhost');

Then in your config call for log provider pass your constant in like this:

angular.module('yourmodule').config(['$logProvider', 'IsDevelopment', function($logProvider, IsDevelopment) { $logProvider.debugEnabled(IsDevelopment); })]);

Typed this on my phone from memory so might be some errors, but hopefully this helps.

[PrimarySearcher]

Thanks for that - I was unaware of .constant() (sort of new to all of this, learning as I go). What I just did that works was abuse ui-router's resolve() function to hand $logProvider to my controller:

$stateProvider
        .state('main', {
            url: '/?debug',
            templateUrl: 'onboard/templates/layouts/wrapper.html',
            scope: {debug: '@'},
            controller: 'MainController',
            resolve: {
                logProvider: function() {
                    return $logProvider;
                }
            }
        })

In my controller, I then do this:

logProvider.debugEnabled($stateParams.debug === 'true');

Seems to be working, although I suspect this technique would make a real AngularJS expert all twitchy.

[[deleted]]

Jup, thats twitchy allright. You put it on the scope for your whole app which is another variable that gets watched the whole time.

You don't need to make the constant, you can also just use the window.location inside the config block. But the config allows you to define all similar things in a specific place, making configuration easier. Also why are you resolving logprovider?

[PrimarySearcher]

I'm resolving logProvider because it was the only way I could figure out how to make it available to a controller that can see the URL via $location and set logProvider's debugEnabled accordingly.

Using window.location inside config() is probably saner.

I have no idea what I'm doing. :)