icon toggle

[asarro]

<mdl-icon-toggle        
                              [(ngModel)]="question.isRated"
                             (click)="undoRating($event)"
</mdl-icon-toggle>

Hi, I'm trying to use the icon toggle but I wanted to add logic to it, that in certain scenarios if the toggle "is-check" when the user clicks on it, it will remain "is-check" unless certain logical conditions are met. I tried to bind it to a property but regardless of the value of the model(even if it's false) the toggle always goes on -> off and vice versa.