Merge pull request #101 from eduarde/django_mongoengine_example

Django mongoengine example

Author: abawchen

examples/django_mongoengine/.gitignore

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+db.sqlite3

examples/django_mongoengine/README.md

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+
+Example Django+MongoEngine Project
+================================
+
+This example project demos integration between Graphene, Django and MongoEngine.
+
+Getting started
+---------------
+
+First you'll need to get the source of the project. Do this by cloning the
+whole Graphene repository:
+
+```bash
+# Get the example project code
+git clone [email protected]:abawchen/graphene-mongo.git
+cd graphene-mongo/examples/django_mongoengine
+```
+
+Create a virtual environment.
+
+```bash
+# Create a virtualenv in which we can install the dependencies
+virtualenv env
+source env/bin/activate
+```
+
+Now we can install our dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+Run the following command:
+
+```python
+python manage.py migrate
+```
+
+Setup a mongodb connection and create a database.
+See the mongoengine connection details in the *settings.py* file
+
+Start the server:
+
+```python
+python manage.py runserver
+```
+
+Now head on over to
+[http://127.0.0.1:8000/graphql](http://127.0.0.1:8000/graphql)
+and run some queries!
+
+For tests run:
+
+```python
+pytest -v
+```

examples/django_mongoengine/__init__.py

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+from django.apps import AppConfig
+
+
+class BikeConfig(AppConfig):
+    name = 'bike'

examples/django_mongoengine/bike/__init__.py

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+import pytest
+from .models import Bike, Shop
+
+
+def fixture_bike_data():
+    Bike.drop_collection()
+    bike_one = Bike(
+        name='Level R',
+        brand='Mondraker',
+        year='2020',
+        size=['S', 'M', 'L', 'XL'],
+        wheel_size=27.5,
+        type='MTB'
+    )
+    bike_one.save()
+
+    bike_two = Bike(
+        name='CAADX ULTEGRA',
+        brand='Cannondale',
+        year='2019',
+        size=['46', '51', '54', '58'],
+        wheel_size=28,
+        type='Gravel'
+    )
+    bike_two.save()
+
+    bike_three = Bike(
+        id="507f1f77bcf86cd799439011",
+        name='Moterra Neo',
+        brand='Cannondale',
+        year='2019',
+        size=["M", "L", "XL"],
+        wheel_size=29,
+        type='EBike'
+    )
+    bike_three.save()
+
+
+def fixture_shop_data():
+    Shop.drop_collection()
+    shop_one = Shop(
+        name="Big Wheel Bicycles",
+        address="2438 Hart Ridge Road",
+        website="https://www.bigwheelbike.test"
+    )
+    shop_one.save()
+    shop_two = Shop(
+        name="Bike Tech",
+        address="2175 Pearl Street",
+        website="https://www.biketech.test"
+    )
+    shop_two.save()
+
+
+@pytest.fixture(scope='module')
+def fixtures_data():
+    fixture_bike_data()
+    fixture_shop_data()
+
+    return True

examples/django_mongoengine/bike/apps.py

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+from mongoengine import Document
+from mongoengine.fields import (
+    FloatField, StringField,
+    ListField, URLField, ObjectIdField
+)
+
+
+class Shop(Document):
+    meta = {'collection': 'shop'}
+    ID = ObjectIdField()
+    name = StringField()
+    address = StringField()
+    website = URLField()
+
+
+class Bike(Document):
+    meta = {'collection': 'bike'}
+    ID = ObjectIdField()
+    name = StringField()
+    brand = StringField()
+    year = StringField()
+    size = ListField(StringField())
+    wheel_size = FloatField()
+    type = StringField()

examples/django_mongoengine/bike/fixtures.py

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+import graphene
+from django.core.exceptions import ObjectDoesNotExist
+from .models import Bike
+from .types import BikeType
+
+
+class BikeInput(graphene.InputObjectType):
+    id = graphene.ID()
+    name = graphene.String()
+    brand = graphene.String()
+    year = graphene.String()
+    size = graphene.List(graphene.String)
+    wheel_size = graphene.Float()
+    type = graphene.String()
+
+
+class CreateBikeMutation(graphene.Mutation):
+    bike = graphene.Field(BikeType)
+
+    class Arguments:
+        bike_data = BikeInput(required=True)
+
+    def mutate(self, info, bike_data=None):
+        bike = Bike(
+            name=bike_data.name,
+            brand=bike_data.brand,
+            year=bike_data.year,
+            size=bike_data.size,
+            wheel_size=bike_data.wheel_size,
+            type=bike_data.type
+        )
+        bike.save()
+
+        return CreateBikeMutation(bike=bike)
+
+
+class UpdateBikeMutation(graphene.Mutation):
+    bike = graphene.Field(BikeType)
+
+    class Arguments:
+        bike_data = BikeInput(required=True)
+
+    @staticmethod
+    def get_object(id):
+        return Bike.objects.get(pk=id)
+
+    def mutate(self, info, bike_data=None):
+        bike = UpdateBikeMutation.get_object(bike_data.id)
+        if bike_data.name:
+            bike.name = bike_data.name
+        if bike_data.brand:
+            bike.brand = bike_data.brand
+        if bike_data.year:
+            bike.year = bike_data.year
+        if bike_data.size:
+            bike.size = bike_data.size
+        if bike_data.wheel_size:
+            bike.wheel_size = bike_data.wheel_size
+        if bike_data.type:
+            bike.type = bike_data.type
+
+        bike.save()
+
+        return UpdateBikeMutation(bike=bike)
+
+
+class DeleteBikeMutation(graphene.Mutation):
+    class Arguments:
+        id = graphene.ID(required=True)
+
+    success = graphene.Boolean()
+
+    def mutate(self, info, id):
+        try:
+            Bike.objects.get(pk=id).delete()
+            success = True
+        except ObjectDoesNotExist:
+            success = False
+
+        return DeleteBikeMutation(success=success)

examples/django_mongoengine/bike/migrations/__init__.py

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+import graphene
+from graphene.relay import Node
+from graphene_mongo.fields import MongoengineConnectionField
+from .models import Shop
+from .types import BikeType, ShopType
+from .mutations import CreateBikeMutation, UpdateBikeMutation, DeleteBikeMutation
+
+
+class Mutations(graphene.ObjectType):
+    create_bike = CreateBikeMutation.Field()
+    update_bike = UpdateBikeMutation.Field()
+    delete_bike = DeleteBikeMutation.Field()
+
+
+class Query(graphene.ObjectType):
+    node = Node.Field()
+    bikes = MongoengineConnectionField(BikeType)
+    shop_list = graphene.List(ShopType)
+
+    def resolve_shop_list(self, info):
+        return Shop.objects.all()
+
+
+schema = graphene.Schema(query=Query, mutation=Mutations, types=[BikeType, ShopType])