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Only search through last 100_000 activities for fetches.

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This is purely a performance enhancement
This commit is contained in:
Roger Braun 2017-10-31 15:26:37 +01:00
parent 997c01be53
commit 3037814fde
1 changed files with 9 additions and 0 deletions
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9
lib/pleroma/web/activity_pub/activity_pub.ex
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@ -155,6 +155,14 @@ defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do
end
defp restrict_favorited_by(query, _), do: query
# Only search through last 100_000 activities by default
defp restrict_recent(query, _) do
since = Repo.aggregate(Activity, :max, :id) - 100_000
from activity in query,
where: activity.id > ^since
end
def fetch_activities(recipients, opts \\ %{}) do
base_query = from activity in Activity,
limit: 20,
@ -169,6 +177,7 @@ def fetch_activities(recipients, opts \\ %{}) do
|> restrict_actor(opts)
|> restrict_type(opts)
|> restrict_favorited_by(opts)
|> restrict_recent(opts)
|> Repo.all
|> Enum.reverse
end