0
Well, I’m trying to develop an app with Ionic 3 and Firebase. But I’m having problems. You are bringing all the orders, for all users (getAll). I wanted to know the correct way for me to bring only the user requests themselves;
getAll() {
return this.db.list('pedidos', ref => ref.orderByChild('name'))
.snapshotChanges()
.map(changes => {
return changes.map(c => ({ key: c.payload.key, ...c.payload.val() }));
})
}
0
Try to include the user id in the function this way:
getListaUsuario() {
var userId = firebase.auth().currentUser.uid;
return firebase.database().ref('/pedidos/' + userId).once('value').then(function(snapshot) {
return snapshot.val();
});
}
It gives error because it expects 2 arguments only
I edited the answer. Check if this way you get the result of each user.
I have a var like this: requests: Observable<any>; which takes this function that you gave me. It is called in the menu class constructor. It is not accepting, and is giving this error : Uncaught (in Promise): Typeerror: Cannot read Property 'uid' of null Typeerror: Cannot read Property 'uid' of null at Pedidoprovider.webpackJsonp.252.PedidoProvider.getListaUsuario
At the beginning of the function, check for authenticated user. Change the start to if(firebase.auth().currentUser != null){ var userid = firebase.auth().currentUser.uid; Return ... }
Property 'snapshotChanges' does not exist on type '(snapshot: any) => any'.
You can replace the content of your function by return snapshot.val();. I edited the answer again.
He brings nothing to the screen
Browser other questions tagged node.js firebase ionic2 ionic3 firebase-database
You are not signed in. Login or sign up in order to post.
Tell us which Firebase product you’re using (example: Realtime Database) and an example of how your data is organized.
– Renata
Realtime Database
– user125721
{ "requests" { "-Lmmaryymarcdemmdpjm" { "name" "Product1", "tel" : "1234" }, "-Lmmawnotnq8gnk9uww5" : { "name" "Product2", "tel" "321" } } ;}
– user125721