fix migrate

update migrate

lib/mix/tasks/pleroma/marker.ex

@@ -1,36 +0,0 @@
-defmodule Mix.Tasks.Pleroma.Marker do
-  use Mix.Task
-  import Mix.Pleroma
-  import Ecto.Query
-
-  alias Pleroma.Notification
-  alias Pleroma.Repo
-
-  def run(["update_markers"]) do
-    start_pleroma()
-
-    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)
-
-    shell_info("Done")
-  end
-end

priv/repo/migrations/20191030202008_add_unread_to_marker.exs

@@ -2,12 +2,15 @@ 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
@@ -15,4 +18,31 @@ def down do
       remove_if_exists(:unread_count, :integer)
     end
   end
+
+  def update_markers do
+    now = NaiveDateTime.utc_now()
+
+    markers_attrs =
+      from(q in "notifications",
+        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.map(fn attrs ->
+        attrs
+        |> Map.put_new(:inserted_at, now)
+        |> Map.put_new(:updated_at, now)
+      end)
+
+    Repo.insert_all("markers", markers_attrs,
+      on_conflict: {:replace, [:last_read_id, :unread_count]},
+      conflict_target: [:user_id, :timeline]
+    )
+  end
 end