Querying Firebase to find documents that do not have a specific requested field present in all

My current project is using firebase. I am currently working on retrieving documents from firebase, but I have encountered a specific issue. The problem lies in the fact that I have older documents without a "hidden" field and newer documents with this field included. My objective is to retrieve each document where the "hidden" field is set to false, and here is my attempt:

getUserDocuments(): Observable<DocumentInterface[]> {
return this.db
  .collection<DocumentInterface>(CollectionNames.DOCUMENTS, (ref) =>
    ref.where('uid', '==', this.uid).orderBy('timeCreated', 'desc').where('hidden', '==', 'false')
  )
  .valueChanges();
}

I have thoroughly reviewed the documentation but I cannot figure out why I am getting an empty array as a result. Any guidance or assistance on this matter would be greatly appreciated!

Answer №1

After some investigation, I was able to identify the issue. When using .where('hidden', '==', 'false'), I mistakenly passed a string value of 'false' instead of a boolean in the database. The problem was resolved by simply removing the quotes and using .where('hidden', '==', false) instead.

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