Pleroma/lib/pleroma/counter_cache.ex

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# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.CounterCache do
alias Pleroma.CounterCache
alias Pleroma.Repo
use Ecto.Schema
import Ecto.Changeset
import Ecto.Query
schema "counter_cache" do
field(:name, :string)
field(:count, :integer)
end
def changeset(struct, params) do
struct
|> cast(params, [:name, :count])
|> validate_required([:name])
|> unique_constraint(:name)
end
def get_as_map(names) when is_list(names) do
CounterCache
|> where([cc], cc.name in ^names)
|> Repo.all()
|> Enum.group_by(& &1.name, & &1.count)
|> Map.new(fn {k, v} -> {k, hd(v)} end)
end
def set(name, count) do
%CounterCache{}
|> changeset(%{"name" => name, "count" => count})
|> Repo.insert(
on_conflict: [set: [count: count]],
returning: true,
conflict_target: :name
)
end
end