Error when I try to remove or change a reaction

angus · July 25, 2025, 6:48am

Thanks guys. @pmusaraj what is the actual exception? activity_pub_object doesn’t exist? I have a suspicion that the nub of the issue is the reactions plugin has three different data scenarios for reactions.

github.com/discourse/discourse

plugins/discourse-reactions/app/models/discourse_reactions/reaction_user.rb

main


      
          # frozen_string_literal: true
          
          module DiscourseReactions
            # There is some slightly complex logic around reactions that
            # is not immediately apparent. Some reactions also count as
            # a PostAction "like" and some do not. There are three states
            # that can happen when a user reacts to a post:
            #
            # * A PostAction record is created _without_ a ReactionUser. This
            #   happens when the main_reaction_id (discourse_reactions_reaction_for_like)
            #   is used.
            # * A ReactionUser record is created _without_ a PostAction. This
            #   happens when a reaction that does not count as a "like" is used
            #   (discourse_reactions_excluded_from_like)

This may be the scenario where there’s no PostAction, or it’s created in an unconventional way, hence no AP object where one is expected. If so, AP will need to guard against that.

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Error when I try to remove or change a reaction

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