Skip to main content

SQLALchemy JSONField implementation for storing dicts at SQL

Project description

SQLAlchemy_JSONField

https://travis-ci.org/penguinolog/sqlalchemy_jsonfield.svg?branch=master https://coveralls.io/repos/github/penguinolog/sqlalchemy_jsonfield/badge.svg?branch=master https://img.shields.io/circleci/project/github/penguinolog/sqlalchemy_jsonfield.svg https://img.shields.io/pypi/v/sqlalchemy_jsonfield.svg https://img.shields.io/pypi/pyversions/sqlalchemy_jsonfield.svg https://img.shields.io/pypi/status/sqlalchemy_jsonfield.svg https://img.shields.io/github/license/penguinolog/sqlalchemy_jsonfield.svg

SQLALchemy JSONField implementation for storing dicts at SQL independently from JSON type support.

Why?

SqlAlchemy provides JSON field support for several database types (PostgreSQL and MySQL for now) and semi-working dict <-> JSON <-> VARCHAR example, but… In real scenarios we have tests on sqlite, production on MySQL/MariaDB/Percona/PostgreSQL and some of them (modern Oracle MySQL & PostgreSQL) support JSON, some of them (SQLite, Percona & MariaDB) requires data conversion to Text (not VARCHAR).

As addition, we have different levels of Unicode support on database and connector side, so we may be interested to switch JSON encoding between deployments.

Solution:

SQLALchemy JSONField has API with suport for automatic switch between native JSON and JSON encoded data, and encoding to JSON string can be enforced.

Pros:

Python 2.7
Python 3.4
Python 3.5
Python 3.6
PyPy
PyPy3

Usage

Direct usage with MariaDB (example extracted from functional tests):

import sqlalchemy_jsonfield

class ExampleTable(Base):
    __tablename__ = table_name
    id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
    row_name = sqlalchemy.Column(
        sqlalchemy.Unicode(64),
        unique=True,
    )
    json_record = sqlalchemy.Column(
        sqlalchemy_jsonfield.JSONField(
            # MariaDB does not support JSON for now
            enforce_string=True,
            # MariaDB connector requires additional parameters for correct UTF-8
            enforce_unicode=False
        ),
        nullable=False
    )

Usage on PostgreSQL/Oracle MySQL(modern version)/SQLite(testing) environments allows to set enforce_string=False and use native JSON fields.

Testing

The main test mechanism for the package sqlalchemy_jsonfield is using tox. Test environments available:

pep8
py27
py34
py35
py36
pypy
pypy3
pylint
docs

CI systems

For code checking several CI systems is used in parallel:

  1. Travis CI: is used for checking: PEP8, pylint, bandit, installation possibility and unit tests. Also it’s publishes coverage on coveralls.

  2. coveralls: is used for coverage display.

  3. Circle CI: is used for functional tests at separate docker infrastructure. This CI used for HUGE tests.

CD system

Travis CI: is used for package delivery on PyPI.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

SQLAlchemy_JSONField-0.6.0.tar.gz (5.1 kB view details)

Uploaded Source

Built Distribution

SQLAlchemy_JSONField-0.6.0-py2.py3-none-any.whl (7.5 kB view details)

Uploaded Python 2 Python 3

File details

Details for the file SQLAlchemy_JSONField-0.6.0.tar.gz.

File metadata

File hashes

Hashes for SQLAlchemy_JSONField-0.6.0.tar.gz
Algorithm Hash digest
SHA256 cf0e6fe44e3ab28162f95c27b2fb0b7e7c2dcfb55528f8423ff38c6b2d043389
MD5 6a21c3cc0f1306edf4664d2e9e71220c
BLAKE2b-256 f0d0ee91e27b3bc29d346c284ad79d314bd34897ce549fd1fd51e5c0d6f18970

See more details on using hashes here.

File details

Details for the file SQLAlchemy_JSONField-0.6.0-py2.py3-none-any.whl.

File metadata

File hashes

Hashes for SQLAlchemy_JSONField-0.6.0-py2.py3-none-any.whl
Algorithm Hash digest
SHA256 b2f8b39c0a26247d1142bddbfcecf76cc7ae14f996ecee09882e22425ebec067
MD5 5828fd5e488c12a2447443566afd0a57
BLAKE2b-256 31f87a9ab4063993c413f6f1fe530e5d025dd705e95082744aca2ff5e0b40650

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page