tree 12ae60535c44fc3e2cf3ea1a0b39d2af3030ebab
parent 5cbcecb93848c0ccd0e8c8ec7f60fd8d8e7fb71e
author Jonathan Amsterdam <jba@google.com> 1536869867 -0400
committer Jonathan Amsterdam <jba@google.com> 1541108283 +0000

firestore: support retrieval of missing documents

DO NOT SUBMIT before the Firestore team approves the surface.

Add two methods:

- CollectionRef.DocumentRefs
- Transaction.DocumentRefs

These return an iterator over all document references in a collection
including those for "missing documents," which have been deleted but
have documents in subcollections.

Fixes #1080.

Change-Id: I804248fcde7d6f8a7401ec80ab471f637f822232
Reviewed-on: https://code-review.googlesource.com/c/32970
Reviewed-by: Jean de Klerk <deklerk@google.com>