Move core exporters to their own package

src/pretix/base/exporters/json.py

@@ -0,0 +1,98 @@
+import json
+
+from django.core.serializers.json import DjangoJSONEncoder
+from django.dispatch import receiver
+
+from ..exporter import BaseExporter
+from ..signals import register_data_exporters
+
+
+class JSONExporter(BaseExporter):
+    identifier = 'json'
+    verbose_name = 'JSON'
+
+    def render(self, form_data):
+        jo = {
+            'event': {
+                'name': str(self.event.name),
+                'slug': self.event.slug,
+                'organizer': {
+                    'name': str(self.event.organizer.name),
+                    'slug': self.event.organizer.slug
+                },
+                'categories': [
+                    {
+                        'id': category.id,
+                        'name': str(category.name)
+                    } for category in self.event.categories.all()
+                    ],
+                'items': [
+                    {
+                        'id': item.id,
+                        'name': str(item.name),
+                        'category': item.category_id,
+                        'price': item.default_price,
+                        'admission': item.admission,
+                        'active': item.active,
+                        'variations': [
+                            {
+                                'id': variation.id,
+                                'active': variation.active,
+                                'price': variation.default_price if variation.default_price is not None else
+                                item.default_price,
+                                'name': str(variation)
+                            } for variation in item.variations.all()
+                            ]
+                    } for item in self.event.items.all().prefetch_related('variations')
+                    ],
+                'questions': [
+                    {
+                        'id': question.id,
+                        'question': str(question.question),
+                        'type': question.type
+                    } for question in self.event.questions.all()
+                    ],
+                'orders': [
+                    {
+                        'code': order.code,
+                        'status': order.status,
+                        'user': order.email,
+                        'datetime': order.datetime,
+                        'payment_fee': order.payment_fee,
+                        'total': order.total,
+                        'positions': [
+                            {
+                                'id': position.id,
+                                'item': position.item_id,
+                                'variation': position.variation_id,
+                                'price': position.price,
+                                'attendee_name': position.attendee_name,
+                                'secret': position.secret,
+                                'answers': [
+                                    {
+                                        'question': answer.question_id,
+                                        'answer': answer.answer
+                                    } for answer in position.answers.all()
+                                    ]
+                            } for position in order.positions.all()
+                            ]
+                    } for order in
+                    self.event.orders.all().prefetch_related('positions', 'positions__answers')
+                    ],
+                'quotas': [
+                    {
+                        'id': quota.id,
+                        'size': quota.size,
+                        'items': [item.id for item in quota.items.all()],
+                        'variations': [variation.id for variation in quota.variations.all()],
+                    } for quota in self.event.quotas.all().prefetch_related('items', 'variations')
+                    ]
+            }
+        }
+
+        return 'pretixdata.json', 'application/json', json.dumps(jo, cls=DjangoJSONEncoder)
+
+
+@receiver(register_data_exporters, dispatch_uid="exporter_json")
+def register_json_export(sender, **kwargs):
+    return JSONExporter