Add logic for the new registration (static) variables

src/openapi.yaml

@@ -5619,11 +5619,54 @@ paths:
               $ref: '#/components/headers/X-Is-Form-Designer'
             Content-Language:
               $ref: '#/components/headers/Content-Language'
+  /api/v2/variables/registration:
+    get:
+      operationId: variables_registration_list
+      description: List the registration static variables that will be associated
+        with every form
+      summary: Get registration static variables
+      tags:
+      - variables
+      security:
+      - cookieAuth: []
+      responses:
+        '200':
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/FormVariable'
+          description: ''
+          headers:
+            X-Session-Expires-In:
+              $ref: '#/components/headers/X-Session-Expires-In'
+            X-CSRFToken:
+              $ref: '#/components/headers/X-CSRFToken'
+            X-Is-Form-Designer:
+              $ref: '#/components/headers/X-Is-Form-Designer'
+            Content-Language:
+              $ref: '#/components/headers/Content-Language'
+        '403':
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Exception'
+          description: ''
+          headers:
+            X-Session-Expires-In:
+              $ref: '#/components/headers/X-Session-Expires-In'
+            X-CSRFToken:
+              $ref: '#/components/headers/X-CSRFToken'
+            X-Is-Form-Designer:
+              $ref: '#/components/headers/X-Is-Form-Designer'
+            Content-Language:
+              $ref: '#/components/headers/Content-Language'
   /api/v2/variables/static:
     get:
       operationId: variables_static_list
-      description: List the static data that will be associated with every form
-      summary: Get static data
+      description: List the static variables that will be associated with every form
+      summary: Get static variables
       tags:
       - variables
       security:

src/openforms/forms/tests/variables/test_variables_in_logic_trigger.py

@@ -220,7 +220,9 @@ def test_static_variable_in_trigger(self):
 
         self.client.force_authenticate(user=user)
         url = reverse("api:form-logic-rules", kwargs={"uuid_or_slug": form.uuid})
-        with patch("openforms.variables.service.register", new=register):
+        with patch(
+            "openforms.variables.service.static_variables_registry", new=register
+        ):
             response = self.client.put(url, data=form_logic_data)
 
         self.assertEqual(status.HTTP_200_OK, response.status_code)

src/openforms/registrations/base.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
 from typing import TYPE_CHECKING
@@ -8,8 +10,10 @@
 from openforms.utils.mixins import JsonSchemaSerializerMixin
 
 if TYPE_CHECKING:
+    from openforms.forms.models import FormVariable
     from openforms.submissions.models import Submission
 
+
 SerializerCls = type[serializers.Serializer]
 
 
@@ -42,16 +46,14 @@ class BasePlugin(ABC, AbstractBasePlugin):
     """
 
     @abstractmethod
-    def register_submission(
-        self, submission: "Submission", options: dict
-    ) -> dict | None:
+    def register_submission(self, submission: Submission, options: dict) -> dict | None:
         raise NotImplementedError()
 
-    def update_payment_status(self, submission: "Submission", options: dict):
+    def update_payment_status(self, submission: Submission, options: dict):
         raise NotImplementedError()
 
     def pre_register_submission(
-        self, submission: "Submission", options: dict
+        self, submission: Submission, options: dict
     ) -> PreRegistrationResult:
         """Perform any tasks before registering the submission
 
@@ -65,3 +67,9 @@ def get_custom_templatetags_libraries(self) -> list[str]:
         Return a list of custom templatetags libraries that will be added to the 'sandboxed' Django templates backend.
         """
         return []
+
+    def get_variables(self) -> list[FormVariable]:
+        """
+        Return the static variables for this registration plugin.
+        """
+        return []

src/openforms/registrations/contrib/objects_api/migrations/0013_objectsapiregistrationdata.py

@@ -0,0 +1,70 @@
+# Generated by Django 4.2.10 on 2024-03-13 10:39
+
+import django.contrib.postgres.fields
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("submissions", "0004_auto_20231128_1536"),
+        ("registrations_objects_api", "0012_fill_required_fields"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ObjectsAPIRegistrationData",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "pdf_url",
+                    models.URLField(
+                        blank=True,
+                        help_text="The PDF URL of the document on the Documents API.",
+                        verbose_name="pdf url",
+                    ),
+                ),
+                (
+                    "csv_url",
+                    models.URLField(
+                        blank=True,
+                        help_text="The CSV URL of the document on the Documents API.",
+                        verbose_name="csv url",
+                    ),
+                ),
+                (
+                    "attachment_urls",
+                    django.contrib.postgres.fields.ArrayField(
+                        base_field=models.URLField(
+                            help_text="The attachment URL on the Documents API.",
+                            verbose_name="attachment url",
+                        ),
+                        blank=True,
+                        default=list,
+                        help_text="The list of attachment URLs on the Documents API.",
+                        size=None,
+                        verbose_name="attachment urls",
+                    ),
+                ),
+                (
+                    "submission",
+                    models.OneToOneField(
+                        help_text="The submission linked to the registration data.",
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="objects_api_registration_data",
+                        to="submissions.submission",
+                        verbose_name="submission",
+                    ),
+                ),
+            ],
+        ),
+    ]

src/openforms/registrations/contrib/objects_api/models.py

@@ -1,3 +1,4 @@
+from django.contrib.postgres.fields import ArrayField
 from django.core.exceptions import ValidationError
 from django.db import models
 from django.template.loader import render_to_string
@@ -195,3 +196,38 @@ def apply_defaults_to(self, options):
             options["payment_status_update_json"] = self.payment_status_update_json
 
         options.setdefault("auteur", "Aanvrager")
+
+
+class ObjectsAPIRegistrationData(models.Model):
+    """Holds the temporary data available when registering a submission to the Objects API.
+
+    When starting the submission registration, this model is first populated. The Objects API
+    registration variables can then safely make use of this model to provide their data.
+    """
+
+    submission = models.OneToOneField(
+        "submissions.Submission",
+        on_delete=models.CASCADE,
+        verbose_name=_("submission"),
+        help_text=_("The submission linked to the registration data."),
+        related_name="objects_api_registration_data",
+    )
+    pdf_url = models.URLField(
+        _("pdf url"),
+        help_text=_("The PDF URL of the document on the Documents API."),
+        blank=True,
+    )
+    csv_url = models.URLField(
+        _("csv url"),
+        help_text=_("The CSV URL of the document on the Documents API."),
+        blank=True,
+    )
+    attachment_urls = ArrayField(
+        models.URLField(
+            _("attachment url"), help_text=_("The attachment URL on the Documents API.")
+        ),
+        verbose_name=_("attachment urls"),
+        help_text=_("The list of attachment URLs on the Documents API."),
+        blank=True,
+        default=list,
+    )

src/openforms/registrations/contrib/objects_api/plugin.py

@@ -1,25 +1,33 @@
+from __future__ import annotations
+
 import logging
 from functools import partial
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from django.urls import reverse
 from django.utils.translation import gettext_lazy as _
 
 from typing_extensions import override
 
 from openforms.registrations.utils import execute_unless_result_exists
-from openforms.submissions.models import Submission
 from openforms.utils.date import get_today
+from openforms.variables.service import get_static_variables
 
 from ...base import BasePlugin
 from ...registry import register
 from .checks import check_config
 from .client import get_objects_client
 from .config import ObjectsAPIOptionsSerializer
 from .models import ObjectsAPIConfig
+from .registration_variables import register as variables_registry
 from .submission_registration import HANDLER_MAPPING
 from .typing import RegistrationOptions
 
+if TYPE_CHECKING:
+    from openforms.forms.models import FormVariable
+    from openforms.submissions.models import Submission
+
+
 PLUGIN_IDENTIFIER = "objects_api"
 
 logger = logging.getLogger(__name__)
@@ -58,6 +66,8 @@ def register_submission(
 
         handler = HANDLER_MAPPING[options["version"]]
 
+        handler.save_registration_data(submission, options)
+
         object_data = handler.get_object_data(
             submission=submission,
             options=options,
@@ -129,3 +139,7 @@ def update_payment_status(
                 headers={"Content-Crs": "EPSG:4326"},
             )
             response.raise_for_status()
+
+    @override
+    def get_variables(self) -> list[FormVariable]:
+        return get_static_variables(variables_registry=variables_registry)

src/openforms/registrations/contrib/objects_api/registration_variables.py

@@ -0,0 +1,90 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from django.utils.translation import gettext_lazy as _
+
+from openforms.plugins.registry import BaseRegistry
+from openforms.variables.base import BaseStaticVariable
+from openforms.variables.constants import FormVariableDataTypes
+
+if TYPE_CHECKING:
+    from openforms.submissions.models import Submission
+
+
+class Registry(BaseRegistry[BaseStaticVariable]):
+    """
+    A registry for the Objects API registration variables.
+    """
+
+    module = "objects_api"
+
+
+register = Registry()
+"""The Objects API registration variables registry."""
+
+
+@register("pdf_url")
+class PdfUrl(BaseStaticVariable):
+    name = _("PDF Url")
+    data_type = FormVariableDataTypes.string
+
+    def get_initial_value(self, submission: Submission | None = None):
+        if submission is None:
+            return None
+        return submission.objects_api_registration_data.pdf_url
+
+
+@register("csv_url")
+class CsvUrl(BaseStaticVariable):
+    name = _("CSV Url")
+    data_type = FormVariableDataTypes.string
+
+    def get_initial_value(self, submission: Submission | None = None):
+        if submission is None:
+            return None
+        return submission.objects_api_registration_data.csv_url
+
+
+@register("attachment_urls")
+class AttachmentUrls(BaseStaticVariable):
+    name = _("Attachment Urls")
+    data_type = FormVariableDataTypes.array
+
+    def get_initial_value(self, submission: Submission | None = None):
+        if submission is None:
+            return None
+        return submission.objects_api_registration_data.attachment_urls
+
+
+@register("payment_completed")
+class PaymentCompleted(BaseStaticVariable):
+    name = _("Payment completed")
+    data_type = FormVariableDataTypes.boolean
+
+    def get_initial_value(self, submission: Submission | None = None):
+        if submission is None:
+            return None
+        return submission.payment_user_has_paid
+
+
+@register("payment_amount")
+class PaymentAmount(BaseStaticVariable):
+    name = _("Payment amount")
+    data_type = FormVariableDataTypes.string
+
+    def get_initial_value(self, submission: Submission | None = None):
+        if submission is None:
+            return None
+        return str(submission.payments.sum_amount())
+
+
+@register("payment_public_order_ids")
+class PaymentPublicOrderIds(BaseStaticVariable):
+    name = _("Payment public order IDs")
+    data_type = FormVariableDataTypes.array
+
+    def get_initial_value(self, submission: Submission | None = None):
+        if submission is None:
+            return None
+        return submission.payments.get_completed_public_order_ids()