filteralchemy

============= filteralchemy

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filteralchemy is a declarative query builder for SQLAlchemy. filteralchemy uses marshmallow-sqlalchemy_ to auto-generate filter fields and webargs_ to parse field parameters from the request. Use it to filter data with minimal boilerplate.

For Django users: the design of filteralchemy is strongly inspired by django-filter_.

Install

.. code-block::

pip install filteralchemy

Quickstart

.. code-block:: python

import flask
from models import Album, session
from webargs.flaskparser import parser

from filteralchemy import FilterSet
from filteralchemy.operators import Equal, Less, Greater

class AlbumFilterSet(FilterSet):
    class Meta:
        model = Album
        query = session.query(Album)
        operators = (Equal, Less, Greater)
        parser = parser

app = flask.Flask(__name__)

@app.route('/albums')
def get_albums():
    query = AlbumFilterSet().filter()
    return flask.jsonify(query.all())

.. code-block::

http :5000/albums artist==Queen genre==rock sales__gt==1000000

.. _marshmallow-sqlalchemy: https://marshmallow-sqlalchemy.readthedocs.org/ .. _webargs: https://webargs.readthedocs.org/ .. _django-filter: https://github.com/alex/django-filter