Add migration actions for Rapid questions to Shorts in admin and templates

shorts/models.py

@@ -286,6 +286,71 @@ class Question(QuestionBase):
 
         return json
 
+    @classmethod
+    def from_rapid(cls, rapid):
+        """Create a `shorts.Question` from a `rapids.Rapid` instance.
+
+        Fields mapped:
+        - `history` -> `history`
+        - `examination` m2m copied
+        - `author` m2m copied
+        - images copied to `QuestionImage`
+        - `answers` (from `rapids.Answer`) -> `SampleAnswer` with simple score mapping
+
+        All other fields are concatenated into `marking_guidance`.
+        """
+
+        from rapids.models import Answer as RapidAnswer
+
+        guidance_parts = []
+        guidance_parts.append(f"Migrated from rapid id: {rapid.id}")
+        if rapid.laterality:
+            guidance_parts.append(f"Laterality: {rapid.laterality}")
+        abnormalities = ", ".join([a.name for a in rapid.abnormality.all()])
+        if abnormalities:
+            guidance_parts.append(f"Abnormalities: {abnormalities}")
+        regions = ", ".join([r.name for r in rapid.region.all()])
+        if regions:
+            guidance_parts.append(f"Regions: {regions}")
+        if rapid.question:
+            guidance_parts.append(f"Original question text: {rapid.question}")
+
+        marking_guidance = "\n".join(guidance_parts)
+
+        # Create the short question
+        q = cls.objects.create(
+            history=rapid.history,
+            marking_guidance=marking_guidance,
+        )
+
+        # copy m2m fields
+        try:
+            q.examination.set(rapid.examination.all())
+        except Exception:
+            pass
+
+        try:
+            q.author.set(rapid.author.all())
+        except Exception:
+            pass
+
+        # copy images
+        for img in rapid.images.all():
+            new_img = QuestionImage(
+                question=q,
+                image=img.image,
+                feedback_image=img.feedback_image,
+                filename=img.filename,
+                description=img.description,
+                image_md5_hash=img.image_md5_hash,
+                is_dicom=img.is_dicom,
+            )
+            new_img.save()
+
+        # Do not migrate rapid answers into shorts.SampleAnswer per request.
+
+        return q
+