Enhance import preview and backend handling for M2M relationships, adding sources to schema and improving missing values mapping for better template rendering and debugging.

sbas/templates/sbas/partials/import_preview.html

@@ -128,6 +128,14 @@
           {% endif %}
         </div>
       </div>
+      <!-- DEBUG: show raw resolved and missing maps for troubleshooting -->
+      <div class="card-footer text-monospace small">
+        <details>
+          <summary>Debug: resolved_m2m / missing_map (click to expand)</summary>
+          <pre style="white-space:pre-wrap;">resolved_m2m: {{ item.resolved_m2m|default:"{}" }}
+missing_map: {{ item.missing_map|default:"{}" }}</pre>
+        </details>
+      </div>
       <div>
         <label><input type="checkbox" name="selected" value="{{ item.index }}" checked> Include</label>
       </div>

sbas/views.py

@@ -535,6 +535,7 @@ def import_llm_questions(request):
             "condition": {"type": "array", "items": {"oneOf": [{"type": "integer"}, {"type": "string"}]}, "uniqueItems": True},
             "presentation": {"type": "array", "items": {"oneOf": [{"type": "integer"}, {"type": "string"}]}, "uniqueItems": True},
             "subspecialty": {"type": "array", "items": {"oneOf": [{"type": "integer"}, {"type": "string"}]}, "uniqueItems": True},
+            "sources": {"type": "array", "items": {"type": "string"}},
         },
     }
 
@@ -685,11 +686,29 @@ def import_llm_questions(request):
 
                 m2m_map[key] = {"resolved": resolved, "missing": missing}
                 item_report["resolved_m2m"][key] = [o.name for o in resolved]
+                # Always include an entry for this M2M (values may be empty)
+                item_report["missing_m2m"].append({"model": model_cls.__name__, "values": missing})
                 if missing:
-                    item_report["missing_m2m"].extend([{"model": model_cls.__name__, "values": missing}])
                     for v in missing:
                         aggregated_would_create[model_cls.__name__].add(v)
 
+            # Build a simple map of missing values per model (stringified) for robust template rendering
+            # Provide both lowercase and capitalized keys so templates referencing either form will work
+            missing_map = {}
+            for k, v in m2m_map.items():
+                vals = [str(x) for x in v["missing"]]
+                missing_map[k] = vals
+                missing_map[k.capitalize()] = vals
+            item_report["missing_map"] = missing_map
+
+            # Debug: log missing_map and resolved_m2m for troubleshooting
+            logger.debug(
+                "import_llm_questions: item %s missing_map_keys=%s resolved_keys=%s",
+                idx,
+                list(missing_map.keys()),
+                list((item_report.get("resolved_m2m") or {}).keys()),
+            )
+
             # If dry-run, do not save; just report what would happen
             if dry_run:
                 item_report["status"] = "would_create"