Document how to run on installation of another module

Created on 26 August 2025, 18 days ago

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Problem/Motivation

I am making the module Retroactive workflow state → and am relying on Cached moderation state because that felt more accessible, for a contrib solution, than relying on a core patch.

Unfortunately the well-documented initialization instructions → cannot work for a contrib module because, as has recently been documented ( 💬 Documentation suggestion - hook_post_update_NAME Active ), hook_post_update_NAME() hooks do not run after install.

Proposed resolution

Document how to initialize the cached moderation state field in hook_install().

If that is not possible or not recommended (perhaps it is not or Cached moderation state would self-initialize?), find or file an issue in Drupal core about needing a "*.post_install.php" because the current situation inadvertently favors custom code over contributed solutions.

Remaining tasks

User interface changes

API changes

Data model changes

📌 Task

Status

Active

Version

1.2

Component

Documentation

Created by

🇺🇸United States mlncn Minneapolis, MN, USA

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Comments & Activities

Issue created by @mlncn
Comment 18 days ago →
🇺🇸United States mlncn Minneapolis, MN, USA
I've only just started using it myself, but maybe Batch Plugin → module would make it easier to do this work through the UI, with Drush, or on cron, which is i guess what i need, to initialize cron queue batches from an install hook.
Comment 18 days ago →
🇺🇸United States clayfreeman Paragould, AR
As far as I'm aware, it's either not possible or not advisable to run a batch process on module installation. If you have evidence to the contrary, I'd be happy to document a sample install hook.

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