Firestore

Details:

Firestore is an offline available ORM/ODM atop Google Firestore.

Repository:

https://github.com/workenvoy/firestore

Author:

Workenvoy Inc (http://github.com/workenvoy)

Maintainer:

Raymond Ortserga (http://github.com/rayattack)

Details

Firestore is a Python Object-Document/Object-Collections Mapper for working with Google Firestore. The Flexible, Extremely Scalable, realtime database by Google. You can find some documentation at https://firestore.readthedocs.io - and there is also a quickstart tutorial.

Offline Support

Firestore currently uses an in-memory data store to simulate access to Google Firestore when working offline. There is an optimistic persistence to disk and the contents can be seen in the /projectdir/localfire directory. Deleting this directly means you lose all the data you might have saved prior to removing the directory from disk. Make sure to make a copy of this directory if you want to keep a copy of your data and you are encouraged to contribute i.e. open an issue, submit a pull request if you want to offer a helping hand.

Installation

We recommend the use of virtual environments e.g. virtualenv to control your package management. Installation of Firestore is easily done pip install -U firestore and requires pip. to be installed. Otherwise, you can download the source code from GitHub and run python setup.py install.

Dependencies

We tried to keep the dependencies to a minimum, and all dependencies are available using pip. The only dependencies you require to use Firestore are highlighted below:

• google-cloud-firestore

If you are working with dates extensive we suggest you use a date parser:

• dateutil>=2.1.0

Examples

Sample Firestore Code Snippet:

from firestore import Collection, Document, Reference as Ref
from firestore import Array
from firestore import Integer
from firestore import String
from firestore.lazy import Datatype

class SomeRootCollection(Collection):
    """
    Root collections inherit directly from collection, whilst
    sub collections will inherit from a document.

    To understand this always remember in Firestore a collection can never be
    a child of another collection, and a sub-collection will always live
    under a document.
    To have mongo style sub-collections use the Map datatype
    """
    pass


class User(SomeRootCollection):
    """
    This is the User document and will be saved under the
    collection `SomeRootCollection`.
    Documents live under collections or sub-collections directly
    """
    __private__ = ["password"]

    first_name = String(required=True)
    middle_name = Datatype(datatype="String")  # You can use Datatype in place of more specific types
    last_name = Datatype("StrInG")  # Case insensitive
    age = Integer(minimum=0)
    photos = Reference('Photo')
    password = String(minimum=6)  # private fields can not be viewed with get_XXX methods


class Photo(User):
    """
    This creates a photos subcollection under the User document for documents
    under the root collection
    """
    id = String(required=True, id=True)  # omit to have id auto-generated by cloud firestore
    photo_urls = Array()


# Create a text-based post
>>> user = User()
>>> user.first_name = "Alan"
>>> user.last_name = "Turing"
>>> user.photos.append("https://cloudinary.com/img.jpg")
>>>
>>> # this will persist user and photo at
>>> # once unlike user.save that will save only user
>>> user.persist()

# Sometimes you want one thing to succeed before doing another
>>> user.photos.safe_save()  # only saves if parent was prior saved else fails
>>> user.photos.save()  # saves regardless

# You can also save a photo by itself and query easily
>>> photo = Photo()
>>> photo.parent = user
>>> photo.save()  # save only photo
>>> photo.parent.save()

Contributing

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