Merge branch 'refactor/db-not-null-constraints-for-push_subscriptions' into 'develop'

Add NOT NULL constraints for push_subscriptions table

See merge request pleroma/pleroma!1905

priv/repo/migrations/20191026191603_set_not_null_for_push_subscriptions.exs

@@ -0,0 +1,25 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForPushSubscriptions do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE push_subscriptions
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN token_id SET NOT NULL,
+    ALTER COLUMN endpoint SET NOT NULL,
+    ALTER COLUMN key_p256dh SET NOT NULL,
+    ALTER COLUMN key_auth SET NOT NULL,
+    ALTER COLUMN data SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE push_subscriptions
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN token_id DROP NOT NULL,
+    ALTER COLUMN endpoint DROP NOT NULL,
+    ALTER COLUMN key_p256dh DROP NOT NULL,
+    ALTER COLUMN key_auth DROP NOT NULL,
+    ALTER COLUMN data DROP NOT NULL")
+  end
+end