debianize-mobilizon/lib/service/statistics/statistics.ex

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defmodule Mobilizon.Service.Statistics do
@moduledoc """
A module that provides cached statistics
"""
alias Mobilizon.{Conversations, Events, Users}
def get_cached_value(key) do
case Cachex.fetch(:statistics, key, fn key ->
case create_cache(key) do
value when not is_nil(value) -> {:commit, value}
err -> {:ignore, err}
end
end) do
{status, value} when status in [:ok, :commit] -> value
_err -> nil
end
end
defp create_cache(:local_users) do
Users.count_users()
end
defp create_cache(:local_events) do
Events.count_local_events()
end
defp create_cache(:local_comments) do
Conversations.count_local_comments()
end
end