[#1335] Reorganized users.mutes as relation to UserMute entity.

priv/repo/migrations/20191108173911_data_migration_populate_user_blocks.exs

@@ -30,9 +30,8 @@ defmodule Pleroma.Repo.Migrations.DataMigrationPopulateUserBlocks do
 
         for blockee_ap_id <- blockee_ap_ids do
           blockee_id = blockee_id_by_ap_id[blockee_ap_id]
-          blockee_uuid = blockee_id && Ecto.UUID.cast!(blockee_id)
 
-          with {:ok, blockee_uuid} <- Ecto.UUID.cast(blockee_id) do
+          with {:ok, blockee_uuid} <- blockee_id && Ecto.UUID.cast(blockee_id) do
             execute(
               "INSERT INTO user_blocks(blocker_id, blockee_id, inserted_at) " <>
                 "VALUES('#{blocker_uuid}'::uuid, '#{blockee_uuid}'::uuid, now()) " <>

priv/repo/migrations/20191112151559_create_user_mutes.exs

@@ -0,0 +1,14 @@
+defmodule Pleroma.Repo.Migrations.CreateUserMutes do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:user_mutes) do
+      add(:muter_id, references(:users, type: :uuid, on_delete: :delete_all))
+      add(:mutee_id, references(:users, type: :uuid, on_delete: :delete_all))
+
+      timestamps(updated_at: false)
+    end
+
+    create_if_not_exists(unique_index(:user_mutes, [:muter_id, :mutee_id]))
+  end
+end

priv/repo/migrations/20191112151614_data_migration_populate_user_mutes.exs

@@ -0,0 +1,48 @@
+defmodule Pleroma.Repo.Migrations.DataMigrationPopulateUserMutes do
+  use Ecto.Migration
+
+  alias Ecto.Adapters.SQL
+  alias Pleroma.Repo
+
+  require Logger
+
+  def up do
+    {:ok, %{rows: mute_rows}} = SQL.query(Repo, "SELECT id, mutes FROM users WHERE mutes != '{}'")
+
+    mutee_ap_ids =
+      Enum.flat_map(
+        mute_rows,
+        fn [_, ap_ids] -> ap_ids end
+      )
+      |> Enum.uniq()
+
+    # Selecting ids of all mutees at once in order to reduce the number of SELECT queries
+    {:ok, %{rows: mutee_ap_id_id}} =
+      SQL.query(Repo, "SELECT ap_id, id FROM users WHERE ap_id = ANY($1)", [mutee_ap_ids])
+
+    mutee_id_by_ap_id = Enum.into(mutee_ap_id_id, %{}, fn [k, v] -> {k, v} end)
+
+    Enum.each(
+      mute_rows,
+      fn [muter_id, mutee_ap_ids] ->
+        muter_uuid = Ecto.UUID.cast!(muter_id)
+
+        for mutee_ap_id <- mutee_ap_ids do
+          mutee_id = mutee_id_by_ap_id[mutee_ap_id]
+
+          with {:ok, mutee_uuid} <- mutee_id && Ecto.UUID.cast(mutee_id) do
+            execute(
+              "INSERT INTO user_mutes(muter_id, mutee_id, inserted_at) " <>
+                "VALUES('#{muter_uuid}'::uuid, '#{mutee_uuid}'::uuid, now()) " <>
+                "ON CONFLICT (muter_id, mutee_id) DO NOTHING"
+            )
+          else
+            _ -> Logger.warn("Missing reference: (#{muter_uuid}, #{mutee_id})")
+          end
+        end
+      end
+    )
+  end
+
+  def down, do: :noop
+end