add sopn name fields

ynr/apps/data_exports/csv_fields.py

@@ -128,6 +128,18 @@ def link_formatter(value, url):
     value_group="candidacy",
     label="Party description",
 )
+csv_fields["sopn_last_name"] = CSVField(
+    value=F("membership__sopn_last_name"),
+    type="expr",
+    value_group="candidacy",
+    label="SOPN Last Name",
+)
+csv_fields["sopn_first_names"] = CSVField(
+    value=F("membership__sopn_first_names"),
+    type="expr",
+    value_group="candidacy",
+    label="SOPN First Names",
+)
 csv_fields["legacy_party_id"] = CSVField(
     value=F("party__legacy_slug"),
     type="expr",

ynr/apps/popolo/admin.py

@@ -69,7 +69,15 @@ class MembershipAdmin(admin.ModelAdmin):
     form = MembershipAdminForm
     model = models.Membership
     list_display = ("person", "party", "get_ballot", "deselected")
-    fields = ("person", "party", "ballot", "deselected", "deselected_source")
+    fields = (
+        "person",
+        "party",
+        "ballot",
+        "deselected",
+        "deselected_source",
+        "sopn_last_name",
+        "sopn_first_names",
+    )
     readonly_fields = ("person", "party", "ballot")
     list_filter = ("deselected",)
 

ynr/apps/popolo/api/next/serializers.py

@@ -60,6 +60,8 @@ class Meta:
     "party_description_text",
     "deselected",
     "deselected_source",
+    "sopn_last_name",
+    "sopn_first_names",
     "created",
     "modified",
 ]
@@ -96,6 +98,8 @@ class Meta:
     )
     deselected = serializers.ReadOnlyField()
     deselected_source = serializers.ReadOnlyField()
+    sopn_last_name = serializers.ReadOnlyField()
+    sopn_first_names = serializers.ReadOnlyField()
 
     @swagger_serializer_method(serializer_or_field=BallotOnCandidacySerializer)
     def get_ballot(self, obj):

ynr/apps/popolo/migrations/0054_membership_sopn_names.py

@@ -0,0 +1,32 @@
+# Generated by Django 5.2.8 on 2026-01-12 15:23
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("popolo", "0053_alter_post_territory_code"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="membership",
+            name="sopn_first_names",
+            field=models.CharField(
+                blank=True,
+                default="",
+                help_text="The person's first names, exactly as they are printed on the SOPN",
+                max_length=255,
+            ),
+        ),
+        migrations.AddField(
+            model_name="membership",
+            name="sopn_last_name",
+            field=models.CharField(
+                blank=True,
+                default="",
+                help_text="The person's last name, exactly as it is printed on the SOPN",
+                max_length=255,
+            ),
+        ),
+    ]

ynr/apps/popolo/models.py

@@ -363,6 +363,18 @@ class Membership(Dateframeable, TimeStampedModel, models.Model):
     previous_party_affiliations = models.ManyToManyField(
         to="parties.Party", related_name="alliated_memberships", blank=True
     )
+    sopn_last_name = models.CharField(
+        max_length=255,
+        help_text="The person's last name, exactly as it is printed on the SOPN",
+        blank=True,
+        default="",
+    )
+    sopn_first_names = models.CharField(
+        max_length=255,
+        help_text="The person's first names, exactly as they are printed on the SOPN",
+        blank=True,
+        default="",
+    )
 
     deselected = models.BooleanField(
         null=True,