Does this only work for 1 document who has bunch of nested collections(like u showed end of the video of your backend)? Or can we also query every posts(document)'s collection called "comments" and their nested comments with 1 command?. That would be crazy....Great video
Using collectionGroup Queries for nested commenting has been great. However, if I allow users to delete a comment the abandoned subcollections remain even as the document is deleted. Have you done any kind of cloud function so that when a document is deleted, it checks lower level collections and removes them recursively?
I want to cater to multiple restaurant clients, should i crea one firestore database with one top level collection for each client or should I create one firestore database for each client? each restaurant admin/owner should see their unique dashboard when they login to the Android app
I have an ask: When I do this nested consultation, am I charged for all readings being taken? For example, you asked to consult the comments, but did not initially say where, soon, he will look in the posts collection and in the others, if you know it is in the post collection, I will still be charged for the other collections even if I don't want to include them searching for a collection by group?
Example, I know it is in the posts collection, so it is not necessary to search the collection for quizzes, reports and topics, but he will search them, will firebase charge me for searching these collections?
Hey just wanted to know something from you. I heard a lot of people say that you should not deeply have sub-collections in firestore for efficiency. Is it right????
Awesome video! Thank you. What you think is the biggest advantage of CollectionGroup over a normal Collection query. Isn't simple to mimic the same behavior with a top level Collection?
Can I get all subcollections of a certain set of documents, such that the documents appear in a list of *document IDs* that I provide? I.e. put a condition on the ID of the subcollection's parent document
Great video, but if I have a query which gave me an array of comments of a post, Is there any way I can also get user data using the reference uid in the post? somewhat of a SQL join, or is that still impossible in Firestore?
Hi Jeff, does this appear in your master architecture course? And does this mean we no longer have to build up on the root collections list like we did before for easily searching relationship data? Or is there still a limitation here? Thanks
Do someone know how to make geolocation queries on subollection it would be very helpfl for me.. I ve tried geofirex but works just on collections... Please...
I tried to copy your rules at 3:19 just to get it working and I get a series of errors that I am too unfamiliar with firestore rules to figure out what is wrong. Any help would be appreciated. Error saving rules - Line 9: Unexpected '=='.; Line 9: Missing 'match' keyword before path.; Line 9: mismatched input 'path' expecting '}'; Line 9: Missing 'match' keyword before path.; Line 10: mismatched input 'allow' expecting {'{', '/', PATH_SEGMENT}; Line 12: Unexpected '}'. rules_version = '2'; service cloud.firestore { match /databases/{database}/documents { match /{document=**} { allow read, write: if false } match /{path==**}/roles/{id} { allow read, write; } } }
Hello! If somebody has solved the issue of joins in firestore by any method so please forward us the code or logic or please explain me! Its really urgent and important. Thanks.
