Python: Add simple Django REST framework code

python/ql/test/library-tests/frameworks/rest_framework/.gitignore

@@ -0,0 +1 @@
+db.sqlite3

python/ql/test/library-tests/frameworks/rest_framework/README.md

@@ -1 +1,23 @@
-See README for `django-v2-v3` which described how the project was set up and how to run the development server.
+See README for `django-v2-v3` which described how the project was set up.
+
+Since this test project uses models (and a DB), you generally need to run there 3 commands:
+
+```
+python manage.py makemigrations
+python manage.py migrate
+python manage.py runserver
+```
+
+Then visit http://127.0.0.1:8000/
+
+# References
+
+- https://www.django-rest-framework.org/tutorial/quickstart/
+
+# Editing data
+
+To edit data you should add an admin user (will prompt for password)
+
+```
+python manage.py createsuperuser --email admin@example.com --username admin
+```

python/ql/test/library-tests/frameworks/rest_framework/testapp/admin.py

@@ -1,3 +1,8 @@
+from .models import Foo, Bar
+
 from django.contrib import admin
 
 # Register your models here.
+
+admin.site.register(Foo)
+admin.site.register(Bar)

python/ql/test/library-tests/frameworks/rest_framework/testapp/migrations/0001_initial.py

@@ -0,0 +1,31 @@
+# Generated by Django 3.2.8 on 2021-10-27 11:54
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Foo',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=100)),
+                ('field_not_displayed', models.IntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Bar',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('n', models.IntegerField()),
+                ('foo', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='testapp.foo')),
+            ],
+        ),
+    ]

python/ql/test/library-tests/frameworks/rest_framework/testapp/migrations/0002_add_dummy_data.py

@@ -0,0 +1,29 @@
+# Generated by Django 3.2.8 on 2021-10-27 12:06
+
+from django.db import migrations
+
+def add_dummy_data(apps, schema_editor):
+    Foo = apps.get_model("testapp", "Foo")
+    Bar = apps.get_model("testapp", "Bar")
+
+    f1 = Foo(title="example 1", field_not_displayed=10)
+    f1.save()
+    f2 = Foo(title="example 2", field_not_displayed=20)
+    f2.save()
+
+    b1 = Bar(n=42, foo=f1)
+    b1.save()
+    b2 = Bar(n=43, foo=f1)
+    b2.save()
+    b3 = Bar(n=1000, foo=f2)
+    b3.save()
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('testapp', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RunPython(add_dummy_data),
+    ]

python/ql/test/library-tests/frameworks/rest_framework/testapp/models.py

@@ -1,3 +1,13 @@
 from django.db import models
 
 # Create your models here.
+
+
+class Foo(models.Model):
+    title = models.CharField(max_length=100)
+    field_not_displayed = models.IntegerField()
+
+
+class Bar(models.Model):
+    n = models.IntegerField()
+    foo = models.ForeignKey(Foo, on_delete=models.PROTECT)

python/ql/test/library-tests/frameworks/rest_framework/testapp/serializers.py

@@ -0,0 +1,14 @@
+from .models import Foo, Bar
+from rest_framework import serializers
+
+
+class FooSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Foo
+        fields = ["title"]
+
+
+class BarSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Bar
+        fields = ["n", "foo"]

python/ql/test/library-tests/frameworks/rest_framework/testapp/urls.py

@@ -1,7 +1,15 @@
-from django.urls import path
+from django.urls import path, include
+from rest_framework import routers
 
 from . import views
 
+
+router = routers.DefaultRouter()
+router.register(r"foos", views.FooViewSet)
+router.register(r"bars", views.BarViewSet)
+
 urlpatterns = [
-    path("foo/", views.foo),  # $routeSetup="foo/"
+    path("", include(router.urls)),
+    path("api-auth/", include("rest_framework.urls", namespace="rest_framework")),
+    path("example/", views.example),  # $routeSetup="example/"
 ]

python/ql/test/library-tests/frameworks/rest_framework/testapp/views.py

@@ -1,4 +1,20 @@
-from django.http import HttpResponse, HttpRequest
+from .models import Foo, Bar
+from .serializers import FooSerializer, BarSerializer
 
-def foo(request: HttpRequest):
-    return HttpResponse("foo")
+from rest_framework import viewsets
+
+
+class FooViewSet(viewsets.ModelViewSet):
+    queryset = Foo.objects.all()
+    serializer_class = FooSerializer
+
+
+class BarViewSet(viewsets.ModelViewSet):
+    queryset = Bar.objects.all()
+    serializer_class = BarSerializer
+
+
+# this is pure django
+from django.http import HttpResponse, HttpRequest
+def example(request: HttpRequest):
+    return HttpResponse("example")

python/ql/test/library-tests/frameworks/rest_framework/testproj/settings.py

@@ -38,6 +38,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'rest_framework',
 ]
 
 MIDDLEWARE = [
@@ -74,12 +75,12 @@ WSGI_APPLICATION = 'testproj.wsgi.application'
 # Database
 # https://docs.djangoproject.com/en/3.2/ref/settings/#databases
 
-# DATABASES = {
-#     'default': {
-#         'ENGINE': 'django.db.backends.sqlite3',
-#         'NAME': BASE_DIR / 'db.sqlite3',
-#     }
-# }
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
 
 
 # Password validation