ref(sourcemaps): Nullify date_last_accessed from DebugIdArtifactBundle (#46112)

migrations_lockfile.txt

@@ -6,5 +6,5 @@ To resolve this, rebase against latest master and regenerate your migration. Thi
 will then be regenerated, and you should be able to merge without conflicts.
 
 nodestore: 0002_nodestore_no_dictfield
-sentry: 0388_remove_unique_constraint_artifact_bundle
+sentry: 0389_nullify_debug_id_artifact_bundle_field
 social_auth: 0001_initial

src/sentry/migrations/0389_nullify_debug_id_artifact_bundle_field.py

@@ -0,0 +1,31 @@
+# Generated by Django 2.2.28 on 2023-03-21 13:55
+
+from django.db import migrations, models
+
+from sentry.new_migrations.migrations import CheckedMigration
+
+
+class Migration(CheckedMigration):
+    # This flag is used to mark that a migration shouldn't be automatically run in production. For
+    # the most part, this should only be used for operations where it's safe to run the migration
+    # after your code has deployed. So this should not be used for most operations that alter the
+    # schema of a table.
+    # Here are some things that make sense to mark as dangerous:
+    # - Large data migrations. Typically we want these to be run manually by ops so that they can
+    #   be monitored and not block the deploy for a long period of time while they run.
+    # - Adding indexes to large tables. Since this can take a long time, we'd generally prefer to
+    #   have ops run this and not block the deploy. Note that while adding an index is a schema
+    #   change, it's completely safe to run the operation after the code has deployed.
+    is_dangerous = False
+
+    dependencies = [
+        ("sentry", "0388_remove_unique_constraint_artifact_bundle"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="debugidartifactbundle",
+            name="date_last_accessed",
+            field=models.DateTimeField(default=None, null=True),
+        ),
+    ]

src/sentry/models/artifactbundle.py

@@ -99,7 +99,7 @@ class DebugIdArtifactBundle(Model):
     artifact_bundle = FlexibleForeignKey("sentry.ArtifactBundle")
     source_file_type = models.IntegerField(choices=SourceFileType.choices())
     date_added = models.DateTimeField(default=timezone.now)
-    date_last_accessed = models.DateTimeField(default=timezone.now)
+    date_last_accessed = models.DateTimeField(default=None, null=True)
 
     class Meta:
         app_label = "sentry"