1 files changed, 46 insertions, 0 deletions
diff --git a/priv/repo/migrations/20191021113356_add_unread_to_marker.exs b/priv/repo/migrations/20191021113356_add_unread_to_marker.exs
new file mode 100644
index 000000000..c15e2ff13
--- /dev/null
+++ b/priv/repo/migrations/20191021113356_add_unread_to_marker.exs
@@ -0,0 +1,46 @@
+defmodule Pleroma.Repo.Migrations.AddUnreadToMarker do
+  use Ecto.Migration
+  import Ecto.Query
+  alias Pleroma.Repo
+  alias Pleroma.Notification
+
+  def up do
+    alter table(:markers) do
+      add_if_not_exists(:unread_count, :integer, default: 0)
+    end
+
+    flush()
+
+    update_markers()
+  end
+
+  def down do
+    alter table(:markers) do
+      remove_if_exists(:unread_count, :integer)
+    end
+  end
+
+  def update_markers do
+    from(q in Notification,
+      select: %{
+        timeline: "notifications",
+        user_id: q.user_id,
+        unread_count: fragment("SUM( CASE WHEN seen = false THEN 1 ELSE 0 END )"),
+        last_read_id:
+          type(fragment("MAX( CASE WHEN seen = true THEN id ELSE null END )"), :string)
+      },
+      group_by: [q.user_id]
+    )
+    |> Repo.all()
+    |> Enum.each(fn attrs ->
+      Pleroma.Marker
+      |> struct(attrs)
+      |> Ecto.Changeset.change()
+      |> Pleroma.Repo.insert(
+        returning: true,
+        on_conflict: {:replace, [:last_read_id, :unread_count]},
+        conflict_target: [:user_id, :timeline]
+      )
+    end)
+  end
+end