Passing Ionic checkbox values to Firebase - firebase

Question

I got a problem while updating my Ionic checkbox values to Firebase.
Here is my HTML:
<ion-list>
<ion-item>
<ion-label>Problemfeld 1</ion-label>
<ion-checkbox checked="false" [(ngModel)]="problemfeld1" name="problemfeld1"></ion-checkbox>
</ion-item>
<ion-item>
<ion-label>Problemfeld 2</ion-label>
<ion-checkbox checked="false" [(ngModel)]="problemfeld2" name="problemfeld2"></ion-checkbox>
</ion-item>
<ion-item>
<ion-label>Problemfeld 3</ion-label>
<ion-checkbox checked="false" [(ngModel)]="problemfeld3" name="problemfeld3"></ion-checkbox>
</ion-item>
<ion-item>
<ion-label>Problemfeld 4</ion-label>
<ion-checkbox checked="false" [(ngModel)]="problemfeld4" name="problemfeld4"></ion-checkbox>
</ion-item>
</ion-list>
<button ion-button (click)="updateProblemfeld()" [navPush]="problemdefinitionPage">Weiter</button>
This is the function in my Ionic Page:
updateProblemfeld(problemfeld1, problemfeld2,problemfeld3,problemfeld4) {
this.szenarioProvider.updateProblemfeld(problemfeld1, problemfeld2, problemfeld3, problemfeld4);
}
And this is how I pass it to Firebase:
updateProblemfeld(problemfeld1: boolean, problemfeld2: boolean, problemfeld3: boolean, problemfeld4: boolean): firebase.Promise<any> {
return firebase.database().ref('/szenarioData')
.child(firebase.auth().currentUser.uid)
.child('problemfeld').update({
problemfeld1: problemfeld1,
problemfeld2: problemfeld2,
problemfeld3: problemfeld3,
problemfeld4: problemfeld4,
});
}
And this is what the Error looks like:
Firebase.update failed: First argument contains undefined in property 'szenarioData.hR4feTPka8fuMDGK3YV0nFrDs1A3.problemfeld.problemfeld1'
Can you think of a solution for this?
Thanks in advance.

Answer 1

My god,
I looked for a solution for 2 days till I decided to ask this question.
And 30 minutes after asking I found it:
Button in the HTML document needs to be like this:
<button ion-button (click)="updateProblemfeld(problemfeld1, problemfeld2, problemfeld3, problemfeld4)" [navPush]="problemdefinitionPage">Weiter</button>
I simply forgot to pass the values...