Some work

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

priv/repo/migrations/20180628142835_revert_alter_event_timestamps.exs

@@ -0,0 +1,17 @@
+defmodule Eventos.Repo.Migrations.AlterEventTimestampsToDateTimeWithTimeZone do
+  use Ecto.Migration
+
+  def up do
+    alter table("events") do
+      modify :inserted_at, :timestamptz
+      modify :updated_at, :timestamptz
+    end
+  end
+
+  def down do
+    alter table("events") do
+      modify :inserted_at, :utc_datetime
+      modify :updated_at, :utc_datetime
+    end
+  end
+end