Introduce the concept of soft-blocked versions, expose in the admin

src/olympia/blocklist/admin.py

@@ -573,7 +573,10 @@ def users(self, obj):
 
     def blocked_versions(self, obj):
         return ', '.join(
-            sorted(obj.blockversion_set.values_list('version__version', flat=True))
+            f'{version} ({"hard" if hard else "soft"})'
+            for version, hard in sorted(
+                obj.blockversion_set.values_list('version__version', 'hard')
+            )
         )
 
     def block_history(self, obj):

src/olympia/blocklist/migrations/0033_remove_block_max_version_remove_block_min_version_and_more.py

@@ -0,0 +1,34 @@
+# Generated by Django 4.2.16 on 2024-09-20 14:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('blocklist', '0032_alter_blocklistsubmission_reason_url_null_true'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='block',
+            name='max_version',
+        ),
+        migrations.RemoveField(
+            model_name='block',
+            name='min_version',
+        ),
+        migrations.RemoveField(
+            model_name='blocklistsubmission',
+            name='max_version',
+        ),
+        migrations.RemoveField(
+            model_name='blocklistsubmission',
+            name='min_version',
+        ),
+        migrations.AddField(
+            model_name='blockversion',
+            name='hard',
+            field=models.BooleanField(default=True),
+        ),
+    ]

src/olympia/blocklist/models.py

@@ -158,9 +158,11 @@ def get_blocks_from_guids(cls, guids):
 class BlockVersion(ModelBase):
     version = models.OneToOneField(Version, on_delete=models.CASCADE)
     block = models.ForeignKey(Block, on_delete=models.CASCADE)
+    hard = models.BooleanField(default=True)
 
     def __str__(self) -> str:
-        return f'Block.id={self.block_id} -> Version.id={self.version_id}'
+        blocktype = 'hard' if self.hard else 'soft'
+        return f'Block.id={self.block_id} ({blocktype}) -> Version.id={self.version_id}'
 
 
 class BlocklistSubmissionQuerySet(BaseQuerySet):

src/olympia/blocklist/tests/test_admin.py

@@ -176,6 +176,31 @@ def test_guid_redirects(self):
             status_code=301,
         )
 
+    def test_view_versions(self):
+        user = user_factory(email='[email protected]')
+        self.grant_permission(user, 'Blocklist:Create')
+        self.client.force_login(user)
+
+        addon = addon_factory(version_kw={'version': '1.0'})
+        second_version = version_factory(addon=addon, version='2.0')
+        third_version = version_factory(addon=addon, version='3.0')
+        block = block_factory(
+            addon=addon,
+            version_ids=[second_version.id, third_version.id],
+            updated_by=user,
+        )
+        # Make one of the blocks soft.
+        block.blockversion_set.get(version=third_version).update(hard=False)
+
+        response = self.client.get(
+            reverse('admin:blocklist_block_change', args=(block.id,)),
+        )
+        assert response.status_code == 200
+        doc = pq(response.content)
+        assert doc('.field-blocked_versions').text() == (
+            'Blocked versions:\n2.0 (hard), 3.0 (soft)'
+        )
+
 
 def check_checkbox(checkbox, version, is_checked, is_disabled):
     assert checkbox.attrib['value'] == str(version.id)