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

apps/competitions/admin.py

@@ -5,9 +5,9 @@ from .models import Competition, Season, TeamSeason
 
 @admin.register(Competition)
 class CompetitionAdmin(admin.ModelAdmin):
-    list_display = ("name", "source_uid", "competition_type", "gender", "country", "is_active")
+    list_display = ("name", "source_name", "source_uid", "competition_type", "gender", "country", "is_active")
     list_filter = ("competition_type", "gender", "country", "is_active")
-    search_fields = ("name", "slug", "source_uid")
+    search_fields = ("name", "slug", "source_name", "source_uid")
 
 
 @admin.register(Season)

apps/competitions/migrations/0004_competition_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 = [
+        ("competitions", "0003_competition_source_uid_season_source_uid_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="competition",
+            name="source_name",
+            field=models.CharField(blank=True, default="", max_length=120),
+        ),
+        migrations.AlterField(
+            model_name="competition",
+            name="source_uid",
+            field=models.CharField(blank=True, max_length=120, null=True),
+        ),
+        migrations.AddConstraint(
+            model_name="competition",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(source_uid__isnull=False) & ~models.Q(source_uid=""),
+                fields=("source_name", "source_uid"),
+                name="uq_competition_source_namespace_uid",
+            ),
+        ),
+        migrations.AddIndex(
+            model_name="competition",
+            index=models.Index(fields=["source_name", "source_uid"], name="competition_source__4c5f3d_idx"),
+        ),
+    ]

apps/competitions/models.py

@@ -14,7 +14,8 @@ class Competition(models.Model):
 
     name = models.CharField(max_length=220)
     slug = models.SlugField(max_length=240, 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)
     competition_type = models.CharField(max_length=24, choices=CompetitionType.choices)
     gender = models.CharField(max_length=16, choices=Gender.choices, default=Gender.MEN)
     level = models.PositiveSmallIntegerField(default=1)
@@ -32,10 +33,16 @@ class Competition(models.Model):
     class Meta:
         ordering = ["name"]
         constraints = [
-            models.UniqueConstraint(fields=["name", "country"], name="uq_competition_name_country")
+            models.UniqueConstraint(fields=["name", "country"], name="uq_competition_name_country"),
+            models.UniqueConstraint(
+                fields=["source_name", "source_uid"],
+                condition=models.Q(source_uid__isnull=False) & ~models.Q(source_uid=""),
+                name="uq_competition_source_namespace_uid",
+            ),
         ]
         indexes = [
             models.Index(fields=["name"]),
+            models.Index(fields=["source_name", "source_uid"]),
             models.Index(fields=["source_uid"]),
             models.Index(fields=["country"]),
             models.Index(fields=["competition_type"]),