Recommended replacement for modifyClass("model:composer") when overriding save()

Development
5

The best thing would be to add a new hook to Discourse core which allows you to achieve what you need in a supported way. How about something like this:

So then your plugin would do

api.registerValueTransformer(
  "composer-minimum-post-length",
  ({ value, context: { composer } }) => {
    if (
      siteSettings.discourse_optional_topic_body_enabled &&
      composer.topicFirstPost
    ) {
      return 0;
    }

    return value; // Keep core logic
  }
);

LMK if that works for your use-case and I’ll take the PR out of draft and I can get it reviewed/merged.