תוסף לסיוע במיפוי שרשורים לפני הגירה לאחר הגירה

[Crius]

Hey, yes Jay, we do.

@Crius

In the migration we have written, we write a mapping of the “old” topic and post Ids and to what they map into in discourse.

For example:

   id   | topic_id |   name    | value  |         created_at         |         updated_at
--------+----------+-----------+--------+----------------------------+----------------------------
 581727 |   581736 | import_id | 599137 | 2023-02-08 16:30:01.600759 | 2023-02-08 16:30:01.600759

We were trying to avoid cycling the whole 20 million + replies again but realised that alternatives solutions (plugin, nginx redirect, etc) would be quite convoluted or rely on external factors that would make it a half-assed solution so, we will simply cycle the replies again and process the permalinks. It will add some time to the migration but hopefully not as much.

Everything else is “cooked” on the fly as we know what “raw” need to be converted into html.

For the permalinks we cannot do that as if a permalink is added with an edit, it could reference a topic that has not yet been processed (higher topic Id) and those not being found in the topics_custom_field table at the time it is being processed.