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angularjs - AngularFire - Remove Single Item

Here is the relevant code in my view:

p(ng-repeat="t in todos")
input(
    type="checkbox",
    ng-model="t.done",
    ng-click="clearItem($event)"
    )
{{t.text}} done? {{t.done}}

When the checkbox is clicked, I want the appropriate object in the todos array to be removed from the database.

My clearItem function is as follows:

$scope.clearItem = function(event) {
        todoRef.remove($scope.t);
    }

However, this removes all the entries in my database. I want it to remove only the specific object in question. Is there anyway for me to do this?

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