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diff --git a/lib/pleroma/data_migration.ex b/lib/pleroma/data_migration.ex
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.DataMigration do
+  use Ecto.Schema
+
+  alias Pleroma.DataMigration
+  alias Pleroma.DataMigration.State
+  alias Pleroma.Repo
+
+  import Ecto.Changeset
+  import Ecto.Query
+
+  schema "data_migrations" do
+    field(:name, :string)
+    field(:state, State, default: :pending)
+    field(:feature_lock, :boolean, default: false)
+    field(:params, :map, default: %{})
+    field(:data, :map, default: %{})
+
+    timestamps()
+  end
+
+  def changeset(data_migration, params \\ %{}) do
+    data_migration
+    |> cast(params, [:name, :state, :feature_lock, :params, :data])
+    |> validate_required([:name])
+    |> unique_constraint(:name)
+  end
+
+  def update_one_by_id(id, params \\ %{}) do
+    with {1, _} <-
+           from(dm in DataMigration, where: dm.id == ^id)
+           |> Repo.update_all(set: params) do
+      :ok
+    end
+  end
+
+  def get_by_name(name) do
+    Repo.get_by(DataMigration, name: name)
+  end
+
+  def populate_hashtags_table, do: get_by_name("populate_hashtags_table")
+end