Hi Christopher,
I think it is because the observables returned by AngularFirestore never
complete.
You can use the take operator to make it complete manually.
Regards,
Arnaud.
On Tuesday, 3 March 2020 22:29:59 UTC+1, Christopher de Vidal wrote:
>
> I worked around the problem by denormalizing but I'm curious if someone
> has thoughts how it might have been solved originally.
>
> New schema:
> /users/<username>/ABC123/name = 'Near the house'
>
> On Tuesday, March 3, 2020 at 2:45:31 PM UTC-5, Christopher de Vidal wrote:
>>
>> Help a newbie? The Firebase Firestore users/<user> collection contains a
>> serials subcollection that I assign to serials$. Each one of those fields
>> is turned into a string for a query of the 'serials' collection in
>> Firestore. But nothing is logging to the console. Please assist.
>>
>> Schema:
>> /users/<username>/serials = ['ABC123','ABC124','ABC125']
>> /serials/ABC123/friendly_name = 'Near the house'
>> /serials/ABC124/friendly_name = 'Side yard'
>>
>> constructor(private afs: AngularFirestore) {
>>
>> const serialsDocument = afs.doc<Serial>('users/cdevidal');
>> const serials$ = serialsDocument.collection<Serial>('serials').
>> valueChanges();
>> const friendly_names$ = serials$.pipe(
>> map(serial_record => {
>> console.log('typeof serial_record: ');
>> console.log(typeof serial_record);
>> console.log('serial_record: ');
>> console.log(serial_record);
>> return afs.doc<FriendlyName>('serials/' + serial_record['serial'
>> ]).valueChanges()
>> })
>> );
>> friendly_names$.pipe(combineAll()).subscribe(friendly_names_records
>> => {
>> console.log('typeof friendly_names_records: ');
>> console.log(typeof friendly_names_records);
>> console.log('friendly_names_records: ');
>> console.log(friendly_names_records);
>> });
>> }
>>
>>
>> typeof serial_record:
>> object
>> serial_record:
>> (3) [{…}, {…}, {…}]
>> 0: {serial: "ABC125"}
>> 1: {serial: "ABC124"}
>> 2: {serial: "ABC123"}
>> length: 3__proto__: Array(0)
>>
>
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