How to run controller each time angularjs ui-router named view is activated?

Question

In regular angularjs ui-router state the controller runs each time the state is activated. I found this not to be the case when dealing with named views in an ionic application. The named view controller runs only once per element(game). Eg. user displays a game -> controller runs. Then user goes to another state and upon their return to displaying the same game controller does not run again - the view uses an already generated scope from before. I would like reinitialise that games scope with controller.

My code:

//app.js
.state('app.game', {
  url: "/x/{gameID:int}",
  views: {
    'menuContent': {
      templateUrl: "templates/html/my-game.html",
      controller: 'GameCtrl'
    }
  }
})

...

//controllers.js
controllers.controller('GameCtrl', function ($scope, $stateParams, Game) {
  //alert("running controller");
  Game.get({id: $stateParams.gameID}, function(res){
    $scope.game = res;
  }); 
})

Edit: I actually use this code to go to the view of game (currently playing with guid idea from Steven Wexler)

<ion-view view-title="Games">
  <ion-content>
    <h1>Games</h1>
    <ion-list>
    <ion-item nav-clear menu-close href="#/app/x/{{game.id}}?guid=    {{guid()}}" ng-repeat="game in games">
        {{game.id}}
    </ion-item>
    </ion-list>    
  </ion-content>
</ion-view>

Community · Accepted Answer · 2017-05-23 12:22:41Z

6

I Think your problem is already solved in this post Angular / Ionic - controller only runs once brandyshea says that you need to add the code you want to run in the $ionicView.enter event

controller : function( $scope, $cordovaSQLite ){
    $scope.$on('$ionicView.enter', function() {
        // code to run each time view is entered
    });

    ...
});

edited May 23, 2017 at 12:22

CommunityBot

11 silver badge

answered Mar 31, 2015 at 13:49

Matias Fernandez Martinez

1,88513 silver badges15 bronze badges

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3 Comments

user1167937 Over a year ago

this seems to be what I am looking for. I will update you soon.

Matias Fernandez Martinez Over a year ago

Remember to tell i this is works fine and if you can mark this answer as useful please

user1167937 Over a year ago

Ok, so the other stackoverflow question was about this exactly issue(my bad!). Your answer seems to be proper one but what worked best for me was adding 'cache: false' to app.game state. More in documentation linked from the other question. Thank you all.

Community · Accepted Answer · 2017-05-23 12:08:28Z

0

You probably are navigating to a state with the same url and params that was previously loaded. One way to force a reload is to pass in a guid as a parameter with your state and set reloadOnSearch=true (it's true by default). The second way to force a reload is to use the reload option added in version 0.2.5.

Option 1

.state('app.game', {
  url: "/x/{gameID:int}/{guid}",
  views: {
    'menuContent': {
      templateUrl: "templates/html/my-game.html",
      controller: 'GameCtrl'
    }
  }
})

$state.go("app.game", { gameId: id, guid: guid }); 

function guid() {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
    var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
    return v.toString(16);
  });
}

Option 2 (if you have version >= 0.2.5)

.state('app.game', {
  url: "/x/{gameID:int}",
  views: {
    'menuContent': {
      templateUrl: "templates/html/my-game.html",
      controller: 'GameCtrl'
    }
  },
  reload: true
})

Note: Awesome guid function copied from Create GUID / UUID in JavaScript?

edited May 23, 2017 at 12:08

CommunityBot

11 silver badge

answered Mar 31, 2015 at 13:40

Steven Wexler

17.5k8 gold badges59 silver badges83 bronze badges

1 Comment

user1167937 Over a year ago

sorry, I can not upvote you cause my low rep. I went with more ionic specific solution but this one seems to be very good quality. Thx

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