feat: Add unique constraint for spectrum owner and subtype; update URL for slug-based submission

Author: tlambert03

backend/proteins/migrations/0060_spectrum_optimized_storage.py

@@ -319,6 +319,20 @@ class Migration(migrations.Migration):
                 violation_error_message="Subtype is not valid for the spectrum category",
             ),
         ),
+        # Ensure unique (owner, subtype) combination
+        ConditionalAddConstraint(
+            model_name="spectrum",
+            constraint=models.UniqueConstraint(
+                name="spectrum_unique_owner_subtype",
+                fields=[
+                    "owner_fluor",
+                    "owner_filter",
+                    "owner_light",
+                    "owner_camera",
+                    "subtype",
+                ],
+            ),
+        ),
         # Step 6: Add covering index for metadata-only queries
         ConditionalAddIndex(
             model_name="spectrum",

backend/proteins/urls.py

@@ -65,6 +65,19 @@
         ),
         name="submit-spectra",
     ),
+    # Slug-based submission uses legacy form (pre-selects the protein)
+    re_path(
+        r"^spectra/submit/(?P<slug>[-\w]+)/$",
+        (
+            login_required(
+                views.SpectrumCreateView.as_view(),
+                message="You must be logged in to submit spectra",
+            )
+            if CONTRIBS_OPEN
+            else disabled
+        ),
+        name="submit-spectra",
+    ),
     path(
         "spectra/submitted/",
         views.spectrum_submitted_v2,