fix(v2-import): namespace source identity for snapshot upserts

apps/teams/admin.py

@@ -5,6 +5,6 @@ from .models import Team
 
 @admin.register(Team)
 class TeamAdmin(admin.ModelAdmin):
-    list_display = ("name", "source_uid", "short_name", "country", "is_national_team")
+    list_display = ("name", "source_name", "source_uid", "short_name", "country", "is_national_team")
     list_filter = ("is_national_team", "country")
-    search_fields = ("name", "short_name", "slug", "source_uid")
+    search_fields = ("name", "short_name", "slug", "source_name", "source_uid")

apps/teams/migrations/0003_team_source_namespaced_uid.py

@@ -0,0 +1,35 @@
+# Generated by Django 5.2.12 on 2026-03-13 15:08
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("teams", "0002_team_source_uid_team_teams_team_source__940258_idx"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="team",
+            name="source_name",
+            field=models.CharField(blank=True, default="", max_length=120),
+        ),
+        migrations.AlterField(
+            model_name="team",
+            name="source_uid",
+            field=models.CharField(blank=True, max_length=120, null=True),
+        ),
+        migrations.AddConstraint(
+            model_name="team",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(source_uid__isnull=False) & ~models.Q(source_uid=""),
+                fields=("source_name", "source_uid"),
+                name="uq_team_source_namespace_uid",
+            ),
+        ),
+        migrations.AddIndex(
+            model_name="team",
+            index=models.Index(fields=["source_name", "source_uid"], name="teams_team_source__8035ae_idx"),
+        ),
+    ]

apps/teams/models.py

@@ -5,7 +5,8 @@ class Team(models.Model):
     name = models.CharField(max_length=200)
     short_name = models.CharField(max_length=80, blank=True)
     slug = models.SlugField(max_length=220, unique=True)
-    source_uid = models.CharField(max_length=120, blank=True, null=True, unique=True)
+    source_name = models.CharField(max_length=120, blank=True, default="")
+    source_uid = models.CharField(max_length=120, blank=True, null=True)
     country = models.ForeignKey(
         "players.Nationality",
         on_delete=models.SET_NULL,
@@ -21,11 +22,17 @@ class Team(models.Model):
     class Meta:
         ordering = ["name"]
         constraints = [
-            models.UniqueConstraint(fields=["name", "country"], name="uq_team_name_country")
+            models.UniqueConstraint(fields=["name", "country"], name="uq_team_name_country"),
+            models.UniqueConstraint(
+                fields=["source_name", "source_uid"],
+                condition=models.Q(source_uid__isnull=False) & ~models.Q(source_uid=""),
+                name="uq_team_source_namespace_uid",
+            ),
         ]
         indexes = [
             models.Index(fields=["name"]),
             models.Index(fields=["slug"]),
+            models.Index(fields=["source_name", "source_uid"]),
             models.Index(fields=["source_uid"]),
             models.Index(fields=["country"]),
             models.Index(fields=["is_national_team"]),