FEATURE: new "notification level when assigned" user preference (#626)

This adds a new user preference allowed users to control how the
notification level of the topic they're assigned to changes.

Internal ref - t/141162

.discourse-compatibility

@@ -1,3 +1,4 @@
+< 3.4.0.beta4-dev: 654f197003f9cdf1926b07137fc2214b21c91a79
 < 3.4.0.beta3-dev: 6472f4593e1a4abbb457288db012ddb10f0b16f5
 < 3.4.0.beta1-dev: fe725251c1b248c349c38c96432e892c668822c6
 < 3.3.0.beta2-dev: b796ae3fcc89b48cf777de5ee3a4c21aada9271e

assets/javascripts/discourse/connectors/user-preferences-tracking-topics/notification-level-when-assigned.gjs

@@ -0,0 +1,52 @@
+import Component from "@glimmer/component";
+import { service } from "@ember/service";
+import { i18n } from "discourse-i18n";
+import ComboBox from "select-kit/components/combo-box";
+
+export default class NotificationLevelWhenAssigned extends Component {
+  @service siteSettings;
+
+  constructor(owner, args) {
+    super(...arguments);
+    if (this.siteSettings.assign_enabled) {
+      args.outletArgs.customAttrNames.push("notification_level_when_assigned");
+    }
+  }
+
+  get notificationLevelsWhenAssigned() {
+    // The order matches the "notification level when replying" user preference
+    return [
+      {
+        name: i18n("user.notification_level_when_assigned.watch_topic"),
+        value: "watch_topic",
+      },
+      {
+        name: i18n("user.notification_level_when_assigned.track_topic"),
+        value: "track_topic",
+      },
+      {
+        name: i18n("user.notification_level_when_assigned.do_nothing"),
+        value: "do_nothing",
+      },
+    ];
+  }
+
+  <template>
+    {{#if this.siteSettings.assign_enabled}}
+      <div
+        class="controls controls-dropdown"
+        data-setting-name="user-notification-level-when-assigned"
+      >
+        <label>{{i18n "user.notification_level_when_assigned.label"}}</label>
+        <ComboBox
+          @content={{this.notificationLevelsWhenAssigned}}
+          @value={{@outletArgs.model.user_option.notification_level_when_assigned}}
+          @valueProperty="value"
+          @onChange={{action
+            (mut @outletArgs.model.user_option.notification_level_when_assigned)
+          }}
+        />
+      </div>
+    {{/if}}
+  </template>
+}

assets/javascripts/discourse/initializers/extend-for-assigns.js

@@ -860,6 +860,8 @@ export default {
 
       api.addUserSearchOption("assignableGroups");
 
+      api.addSaveableUserOptionField("notification_level_when_assigned");
+
       api.addBulkActionButton({
         id: "assign-topics",
         label: "topics.bulk.assign",

config/locales/client.en.yml

@@ -100,6 +100,11 @@ en:
               assignable_levels:
                 title: "Who can assign this group"
     user:
+      notification_level_when_assigned: 
+        label: "When assigned"
+        watch_topic: "Watch topic"
+        track_topic: "Track topic"
+        do_nothing: "Do nothing"
       messages:
         assigned_title: "Assigned (%{count})"
         assigned: "Assigned"

db/migrate/20250115130542_add_notification_level_when_assigned_user_option.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+class AddNotificationLevelWhenAssignedUserOption < ActiveRecord::Migration[7.2]
+  def change
+    add_column :user_options, :notification_level_when_assigned, :integer, null: false, default: 3 # watch topic
+  end
+end

lib/assigner.rb

@@ -329,17 +329,19 @@ class ::Assigner
     publish_assignment(assignment, assign_to, note, status)
 
     if assignment.assigned_to_user?
-      if !TopicUser.exists?(
-           user_id: assign_to.id,
-           topic_id: topic.id,
-           notification_level: TopicUser.notification_levels[:watching],
-         )
-        TopicUser.change(
-          assign_to.id,
-          topic.id,
-          notification_level: TopicUser.notification_levels[:watching],
-          notifications_reason_id: TopicUser.notification_reasons[:plugin_changed],
-        )
+      if !assign_to.user_option.do_nothing_when_assigned?
+        notification_level =
+          if assign_to.user_option.track_topic_when_assigned?
+            TopicUser.notification_levels[:tracking]
+          else
+            TopicUser.notification_levels[:watching]
+          end
+
+        topic_user = TopicUser.find_by(user_id: assign_to.id, topic:)
+        if !topic_user || topic_user.notification_level < notification_level
+          notifications_reason_id = TopicUser.notification_reasons[:plugin_changed]
+          TopicUser.change(assign_to.id, topic.id, notification_level:, notifications_reason_id:)
+        end
       end
 
       if SiteSetting.assign_mailer == AssignMailer.levels[:always] ||
@@ -506,6 +508,7 @@ class ::Assigner
       @assigned_by,
       text,
       bump: false,
+      auto_track: false,
       post_type: SiteSetting.assigns_public ? Post.types[:small_action] : Post.types[:whisper],
       action_code: action_code,
       custom_fields: custom_fields,

lib/discourse_assign/user_option_extension.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module DiscourseAssign
+  module UserOptionExtension
+    extend ActiveSupport::Concern
+
+    prepended do
+      enum :notification_level_when_assigned,
+           { do_nothing: 1, track_topic: 2, watch_topic: 3 },
+           suffix: "when_assigned"
+    end
+  end
+end

plugin.rb

@@ -22,6 +22,8 @@ require_relative "lib/discourse_assign/engine"
 require_relative "lib/validators/assign_statuses_validator"
 
 after_initialize do
+  UserUpdater::OPTION_ATTR.push(:notification_level_when_assigned)
+
   reloadable_patch do |plugin|
     Group.prepend(DiscourseAssign::GroupExtension)
     ListController.prepend(DiscourseAssign::ListControllerExtension)
@@ -29,6 +31,15 @@ after_initialize do
     Topic.prepend(DiscourseAssign::TopicExtension)
     WebHook.prepend(DiscourseAssign::WebHookExtension)
     Notification.prepend(DiscourseAssign::NotificationExtension)
+    UserOption.prepend(DiscourseAssign::UserOptionExtension)
+  end
+
+  add_to_serializer(:user_option, :notification_level_when_assigned) do
+    object.notification_level_when_assigned
+  end
+
+  add_to_serializer(:current_user_option, :notification_level_when_assigned) do
+    object.notification_level_when_assigned
   end
 
   register_group_param(:assignable_level)

spec/lib/assigner_spec.rb

@@ -43,6 +43,46 @@ RSpec.describe Assigner do
       )
     end
 
+    describe "when user watchs topic when assigned" do
+      before { moderator.user_option.watch_topic_when_assigned! }
+
+      it "respects 'when assigned' user preference" do
+        expect(TopicUser.find_by(user: moderator)).to be(nil)
+
+        assigner.assign(moderator)
+
+        expect(TopicUser.find_by(user: moderator).notification_level).to eq(
+          TopicUser.notification_levels[:watching],
+        )
+      end
+    end
+
+    describe "when user tracks topic when assigned" do
+      before { moderator.user_option.track_topic_when_assigned! }
+
+      it "respects 'when assigned' user preference" do
+        expect(TopicUser.find_by(user: moderator)).to be(nil)
+
+        assigner.assign(moderator)
+
+        expect(TopicUser.find_by(user: moderator).notification_level).to eq(
+          TopicUser.notification_levels[:tracking],
+        )
+      end
+    end
+
+    describe "when user wants to do nothing when assigned" do
+      before { moderator.user_option.do_nothing_when_assigned! }
+
+      it "respects 'when assigned' user preference" do
+        expect(TopicUser.find_by(user: moderator)).to be(nil)
+
+        assigner.assign(moderator)
+
+        expect(TopicUser.find_by(user: moderator)).to be(nil)
+      end
+    end
+
     it "deletes notification for original assignee when reassigning" do
       Jobs.run_immediately!
 

spec/system/user_preferences_spec.rb

@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+describe "Assign | User Preferences", type: :system, js: true do
+  fab!(:user)
+
+  let(:selector) { "[data-setting-name='user-notification-level-when-assigned'] .combobox" }
+
+  before { sign_in(user) }
+
+  describe "when discourse-assign is disabled" do
+    before { SiteSetting.assign_enabled = false }
+
+    it "does not show the 'when assigned' tracking user preference" do
+      visit "/my/preferences/tracking"
+
+      expect(page).not_to have_css(selector)
+    end
+  end
+
+  describe "when discourse-assign is enabled" do
+    before { SiteSetting.assign_enabled = true }
+
+    let(:when_assigned) { PageObjects::Components::SelectKit.new(selector) }
+
+    it "shows the 'when assigned' tracking user preference" do
+      visit "/my/preferences/tracking"
+
+      expect(when_assigned).to have_selected_value("watch_topic")
+    end
+
+    it "supports changing the 'when assigned' tracking user preference" do
+      visit "/my/preferences/tracking"
+
+      when_assigned.expand
+      when_assigned.select_row_by_value("track_topic")
+
+      page.find("button.save-changes").click
+      page.refresh
+
+      expect(when_assigned).to have_selected_value("track_topic")
+    end
+  end
+end