Support for create a Firebase Document Reference and offset query

[lucasdidur]

Because in my project I need to use document references and the fireorm still doesn't have support for references, both for searching and for creating new documents, I implemented a function to facilitate the manipulation to get a native data of firebase.

I also implemented support for query offset, very useful in document pagination.

[codecov]

Codecov Report

❌ Patch coverage is 37.50000% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.68%. Comparing base (f66fe7e) to head (11fa721).
⚠️ Report is 151 commits behind head on master.

Files with missing lines	Patch %	Lines
src/QueryBuilder.ts	33.33%	4 Missing ⚠️
src/AbstractFirestoreRepository.ts	25.00%	3 Missing ⚠️
src/BaseFirestoreRepository.ts	50.00%	2 Missing ⚠️
.../Transaction/BaseFirestoreTransactionRepository.ts	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #181      +/-   ##
==========================================
- Coverage   94.36%   92.68%   -1.68%     
==========================================
  Files          21       21              
  Lines         532      547      +15     
  Branches       83       86       +3     
==========================================
+ Hits          502      507       +5     
- Misses         30       40      +10     

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[skalashnyk]

offset is something that is not recommended to use by google - https://cloud.google.com/firestore/docs/best-practices#read_and_write_operations

Do not use offsets. Instead, use cursors. Using an offset only avoids returning the skipped documents to your application, but these documents are still retrieved internally. The skipped documents affect the latency of the query, and your application is billed for the read operations required to retrieve them.

Oh, this is your 2nd attempt #132 :-)

[justusburger]

This is exactly what I need now - the ability to specify an offset in order to do pagination.

[wovalle]

Hi @lucasdidur!

In order to deploy this I'd still need two things:

• Fix the branch conflicts
• Add a unit test for the offset

But nonetheless, great job!