Trying to Dynamically set a templateUrl in controller based on constant

I want to change the templateUrl associated with controller based on a preset constant that I've defined in my angularjs bootstrap. I can't figure out how to change that. I've experimented with UrlRouteProvider but have not been able to figure out how to pull the html in from the file system with that. I'm stuck on templateUrl.

In the below code, the output first shows that "svcc is indeed passed into the first function's console.out but in the templateUrl definition function, CONFIG is undefined.

I'm open to other ways to do this.

    var app = angular.module('svccApp', [
        'ui.router'
    ]);

    var myConstant = {};
    myConstant.codeCampType = "svcc";
    app.constant("CONFIG", myConstant);

    app.config(['$stateProvider', '$urlRouterProvider','CONFIG',
        function ($stateProvider, $urlRouterProvider,CONFIG) {
            console.log(CONFIG.codeCampType);
            $stateProvider
                .state('home', {
                    url: '/home',
                    //templateUrl: 'index5templateA.html',   (THIS WORKS)
                    templateUrl: function(CONFIG) {
                        console.log('in templateUrl ' + CONFIG.codeCampType);
                        if (CONFIG.codeCampType === "svcc") {
                            return 'index5templateA.html';
                        } else {
                            return 'index5templateB.html';
                        }
                    },
                    controller: function ($state) {
                    }
                });
        }]);

I created a plunker here You are almost there, just the syntax is 'templateProvider':

.state('home', {
    url: '/home',
    //templateUrl: 'index5templateA.html',   (THIS WORKS)
    // templateUrl: function(CONFIG) {
    templateProvider: function(CONFIG) {
    ...

Snippet from doc:

Templates

TemplateUrl
... templateUrl can also be a function that returns a url. It takes one preset parameter, stateParams, which is NOT injected.

TemplateProvider
Or you can use a template provider function which can be injected, has access to locals, and must return template HTML, like this:

So in our case, that would be the implementation:

 $stateProvider
    .state('home', {
        url: '/home',
        //templateUrl: 'index5templateA.html',   (THIS WORKS)
        templateProvider: function(CONFIG, $http, $templateCache) {
            console.log('in templateUrl ' + CONFIG.codeCampType);
            
            var templateName = 'index5templateB.html';
            
            if (CONFIG.codeCampType === "svcc") {
                 templateName = 'index5templateA.html';
            } 
            var tpl = $templateCache.get(templateName);
            
            if(tpl){
              return tpl;
            }
            
            return $http
               .get(templateName)
               .then(function(response){
                  tpl = response.data
                  $templateCache.put(templateName, tpl);
                  return tpl;
              });
        },
        controller: function ($state) {
        }
    });

Check the examle here

Also check:

• Angular UI Router: decide child state template on the basis of parent resolved object
• Angular and UI-Router, how to set a dynamic templateUrl

I have to add another answer, related to brand new feature of angular 1.3

$templateRequest

The $templateRequest service downloads the provided template using $http and, upon success, stores the contents inside of $templateCache.

Usage

$templateRequest(tpl, [ignoreRequestError]);

Arguments - tpl string - The HTTP request template URL

• ignoreRequestError (optional) boolean - Whether or not to ignore the exception when the request fails or the template is empty

And updated plunker

templateProvider: function(CONFIG, $templateRequest) {
    console.log('in templateUrl ' + CONFIG.codeCampType);

    var templateName = 'index5templateB.html';

    if (CONFIG.codeCampType === "svcc") {
         templateName = 'index5templateA.html';
    } 

    return $templateRequest(templateName);
},

 var app = angular.module('svccApp', [
        'ui.router'
    ]);

    var myConstant = {};
    myConstant.codeCampType = "svcc";

    app.config(['$stateProvider', '$urlRouterProvider','CONFIG',
        function ($stateProvider, $urlRouterProvider,CONFIG) {
            console.log(CONFIG.codeCampType);
            $stateProvider
                .state('home', {
                    url: '/home',
                    //templateUrl: 'index5templateA.html',   (THIS WORKS)
                    templateUrl: function() {
                        if (myConstant.codeCampType === "svcc") {
                            return 'index5templateA.html';
                        } else {
                            return 'index5templateB.html';
                        }
                    },
                    controller: function ($state) {
                    }
                });
        }]);