4 files changed, 54 insertions, 0 deletions
diff --git a/db/post_migrate/20190706233204_drop_stream_entries.rb b/db/post_migrate/20190706233204_drop_stream_entries.rb
new file mode 100644
index 000000000..1fecece05
--- /dev/null
+++ b/db/post_migrate/20190706233204_drop_stream_entries.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class DropStreamEntries < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    drop_table :stream_entries
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end
diff --git a/db/post_migrate/20190715031050_drop_subscriptions.rb b/db/post_migrate/20190715031050_drop_subscriptions.rb
new file mode 100644
index 000000000..3719afe4a
--- /dev/null
+++ b/db/post_migrate/20190715031050_drop_subscriptions.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class DropSubscriptions < ActiveRecord::Migration[5.2]
+  def up
+    drop_table :subscriptions
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end
diff --git a/db/post_migrate/20190901040524_remove_score_from_tags.rb b/db/post_migrate/20190901040524_remove_score_from_tags.rb
new file mode 100644
index 000000000..a1112700b
--- /dev/null
+++ b/db/post_migrate/20190901040524_remove_score_from_tags.rb
@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class RemoveScoreFromTags < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def change
+    safety_assured do
+      remove_column :tags, :score, :int
+      remove_column :tags, :last_trend_at, :datetime
+    end
+  end
+end
diff --git a/db/post_migrate/20190927124642_remove_invalid_web_push_subscription.rb b/db/post_migrate/20190927124642_remove_invalid_web_push_subscription.rb
new file mode 100644
index 000000000..c2397476a
--- /dev/null
+++ b/db/post_migrate/20190927124642_remove_invalid_web_push_subscription.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class RemoveInvalidWebPushSubscription < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    invalid_web_push_subscriptions = Web::PushSubscription.where(endpoint: '')
+                                                          .or(Web::PushSubscription.where(key_p256dh: ''))
+                                                          .or(Web::PushSubscription.where(key_auth: ''))
+                                                          .preload(:session_activation)
+    invalid_web_push_subscriptions.find_each do |web_push_subscription|
+      web_push_subscription.session_activation&.update!(web_push_subscription_id: nil)
+      web_push_subscription.destroy!
+    end
+  end
+
+  def down; end
+end