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django-rest-witchcraft-0.9.0
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Django REST Framework and SQLAlchemy integration
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-rest-witchcraft-0.9.0 |
| نام | django-rest-witchcraft |
| نسخه کتابخانه | 0.9.0 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Serkan Hosca |
| ایمیل نویسنده | serkan@hosca.com |
| آدرس صفحه اصلی | https://github.com/shosca/django-rest-witchcraft |
| آدرس اینترنتی | https://pypi.org/project/django-rest-witchcraft/ |
| مجوز | MIT |
Django REST Witchcraft
======================
|Build Status| |Read The Docs| |PyPI version| |Coveralls Status| |Black|
**Django REST Framework integration with SQLAlchemy**
django-rest-witchcraft is an extension for Django REST Framework that adds support for SQLAlchemy. It aims to provide
a similar development experience to building REST api's with Django REST Framework with Django ORM, except with
SQLAlchemy.
Installation
============
::
pip install django-rest-witchcraft
Quick Start
===========
First up, lets define some simple models:
.. code:: python
import sqlalchemy as sa
import sqlalchemy.orm # noqa
from sqlalchemy.ext.declarative import declarative_base
engine = sa.create_engine('sqlite:///:memory:', echo=True)
session = sa.orm.scoped_session(sa.orm.sessionmaker(bind=engine))
Base = declarative_base()
Base.query = session.query_property()
class Group(Base):
__tablename__ = 'groups'
id = sa.Column(sa.Integer(), primary_key=True, autoincrement=True)
name = sa.Column(sa.String())
class User(Base):
__tablename__ = 'users'
id = sa.Column(sa.Integer(), primary_key=True, autoincrement=True)
name = sa.Column(sa.String())
fullname = sa.Column(sa.String())
password = sa.Column(sa.String())
_group_id = sa.Column('group_id', sa.Integer(), sa.ForeignKey('groups.id'))
group = sa.orm.relationship(Group, backref='users')
class Address(Base):
__tablename__ = 'addresses'
id = sa.Column(sa.Integer(), primary_key=True, autoincrement=True)
email_address = sa.Column(sa.String(), nullable=False)
_user_id = sa.Column(sa.Integer(), sa.ForeignKey('users.id'))
user = sa.orm.relationship(User, backref='addresses')
Base.metadata.create_all(engine)
Nothing fancy here, we have a ``User`` class that can belongs to a ``Group`` instance and has many ``Address``
instances
This serializer can handle nested create, update or partial update operations.
Lets define a serializer for ``User`` with all the fields:
.. code:: python
class UserSerializer(serializers.ModelSerializer):
class Meta:
model = User
session = session
fields = '__all__'
This will create the following serializer for us:
::
>>> serializer = UserSerializer()
>>> serializer
UserSerializer():
id = IntegerField(allow_null=False, help_text=None, label='Id', required=True)
name = CharField(allow_null=True, help_text=None, label='Name', max_length=None, required=False)
fullname = CharField(allow_null=True, help_text=None, label='Fullname', max_length=None, required=False)
password = CharField(allow_null=True, help_text=None, label='Password', max_length=None, required=False)
group = GroupSerializer(allow_null=True, is_nested=True, required=False):
id = IntegerField(allow_null=False, help_text=None, label='Id', required=False)
name = CharField(allow_null=True, help_text=None, label='Name', max_length=None, required=False)
addresses = AddressSerializer(allow_null=True, many=True, required=False):
id = IntegerField(allow_null=False, help_text=None, label='Id', required=False)
email_address = CharField(allow_null=False, help_text=None, label='Email_address', max_length=None, required=True)
url = UriField(read_only=True)
Lets try to create a ``User`` instance with our brand new serializer:
.. code:: python
serializer = UserSerializer(data={
'name': 'shosca',
'password': 'swordfish',
})
serializer.is_valid()
serializer.save()
user = serializer.instance
This will create the following user for us:
::
>>> user
User(_group_id=None, id=1, name='shosca', fullname=None, password='swordfish')
Lets try to update our user ``User`` instance and change its password:
.. code:: python
serializer = UserSerializer(user, data={
'name': 'shosca',
'password': 'password',
})
serializer.is_valid()
serializer.save()
user = serializer.instance
Our user now looks like:
::
>>> user
User(_group_id=None, id=1, name='shosca', fullname=None, password='password')
Lets try to update our ``User`` instance again, but this time lets change its password only:
.. code:: python
serializer = UserSerializer(user, data={
'password': 'swordfish',
}, partial=True)
serializer.is_valid()
serializer.save()
user = serializer.instance
This will update the following user for us:
::
>>> user
User(_group_id=None, id=1, name='shosca', fullname=None, password='swordfish')
Our user does not belong to a ``Group``, lets fix that:
.. code:: python
group = Group(name='Admin')
session.add(group)
session.flush()
serializer = UserSerializer(user, data={
'group': {'id': group.id}
})
serializer.is_valid()
serializer.save()
user = serializer.instance
Now, our user looks like:
::
>>> user
User(_group_id=1, id=1, name='shosca', fullname=None, password='swordfish')
>>> user.group
Group(id=1, name='Admin')
We can also change the name of our user's group through the user using nested updates:
.. code:: python
class UserSerializer(serializers.ModelSerializer):
class Meta:
model = User
session = session
fields = '__all__'
extra_kwargs = {
'group': {'allow_nested_updates': True}
}
serializer = UserSerializer(user, data={
'group': {'name': 'Super User'}
}, partial=True)
serializer.is_valid()
user = serializer.save()
Now, our user looks like:
::
>>> user
User(_group_id=1, id=1, name='shosca', fullname=None, password='swordfish')
>>> user.group
Group(id=1, name='Super User')
We can use this serializer in a viewset like:
.. code:: python
from rest_witchcraft import viewsets
class UserViewSet(viewsets.ModelViewSet):
queryset = User.query
serializer_class = UserSerializer
And we can register this viewset in our ``urls.py`` like:
.. code:: python
from rest_witchcraft import routers
router = routers.DefaultRouter()
router.register(r'users', UserViewSet)
urlpatterns = [
...
url(r'^', include(router.urls)),
...
]
.. |Build Status| image:: https://github.com/shosca/django-rest-witchcraft/workflows/Build/badge.svg?branch=master
:target: https://github.com/shosca/django-rest-witchcraft/actions?query=workflow%3ABuild+branch%3Amaster
.. |Read The Docs| image:: https://readthedocs.org/projects/django-rest-witchcraft/badge/?version=latest
:target: http://django-rest-witchcraft.readthedocs.io/en/latest/?badge=latest
.. |PyPI version| image:: https://badge.fury.io/py/django-rest-witchcraft.svg
:target: https://badge.fury.io/py/django-rest-witchcraft
.. |Coveralls Status| image:: https://coveralls.io/repos/github/shosca/django-rest-witchcraft/badge.svg?branch=master
:target: https://coveralls.io/github/shosca/django-rest-witchcraft?branch=master
.. |Black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
:target: https://github.com/ambv/black
نیازمندی
| مقدار | نام |
|---|---|
| - | djangorestframework |
| - | six |
| >=0.11.1 | django-sorcery |
| - | django-rest-enumfield |
نحوه نصب
نصب پکیج whl django-rest-witchcraft-0.9.0:
pip install django-rest-witchcraft-0.9.0.whl
نصب پکیج tar.gz django-rest-witchcraft-0.9.0:
pip install django-rest-witchcraft-0.9.0.tar.gz