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Object: remove context_id field

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30 to 70% of the objects in the object table are simple JSON objects
containing a single field, 'id', being the context's ID. The reason for
the creation of an object per context seems to be an old relic from the
StatusNet era, and has only been used nowadays as an helper for threads
in Pleroma-FE via the `pleroma.conversation_id` field in status views.
An object per context was created, and its numerical ID (table column)
was used and stored as 'context_id' in the object and activity along
with the full 'context' URI/string.

This commit removes this field and stops creation of objects for each
context, which will also allow incoming activities to use activity IDs
as contexts, something which was not possible before, or would have been
very broken under most circumstances.

The `pleroma.conversation_id` field has been reimplemented in a way to
maintain backwards-compatibility by calculating a CRC32 of the full
context URI/string in the object, instead of relying on the row ID for
the created context object.
This commit is contained in:
Hélène 2022-08-06 03:24:31 +02:00
commit f3e061c964
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14 changed files with 9 additions and 102 deletions
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29
lib/pleroma/web/common_api/utils.ex
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@ -449,35 +449,6 @@ defmodule Pleroma.Web.CommonAPI.Utils do
def get_report_statuses(_, _), do: {:ok, nil}
# DEPRECATED mostly, context objects are now created at insertion time.
def context_to_conversation_id(context) do
with %Object{id: id} <- Object.get_cached_by_ap_id(context) do
id
else
_e ->
changeset = Object.context_mapping(context)
case Repo.insert(changeset) do
{:ok, %{id: id}} ->
id
# This should be solved by an upsert, but it seems ecto
# has problems accessing the constraint inside the jsonb.
{:error, _} ->
Object.get_cached_by_ap_id(context).id
end
end
end
def conversation_id_to_context(id) do
with %Object{data: %{"id" => context}} <- Repo.get(Object, id) do
context
else
_e ->
{:error, dgettext("errors", "No such conversation")}
end
end
def validate_character_limit("" = _full_payload, [] = _attachments) do
{:error, dgettext("errors", "Cannot post an empty status without attachments")}
end