FEATURE: Mute topics tagged with both muted and unmuted tags.

config/locales/server.en.yml

@@ -2015,7 +2015,8 @@ en:
     allow_staff_to_tag_pms: "Allow staff members to tag any personal message"
     min_trust_level_to_tag_topics: "Minimum trust level required to tag topics"
     suppress_overlapping_tags_in_list: "If tags match exact words in topic titles, don't show the tag"
-    remove_muted_tags_from_latest: "Don't show topics tagged with muted tags in the latest topic list."
+    remove_muted_tags_from_latest: "Don't show topics tagged only with muted tags in the latest topic list."
+    mute_other_present_tags: "Don't show topics tagged with both muted and unmuted tags in the latest topic list."
     force_lowercase_tags: "Force all new tags to be entirely lowercase."
 
     company_name: "Company Name"

config/site_settings.yml

@@ -2059,6 +2059,8 @@ tags:
     client: true
   remove_muted_tags_from_latest:
     default: false
+  mute_other_present_tags:
+    default: true
   force_lowercase_tags:
     default: true
     client: true

lib/topic_query.rb

@@ -876,31 +876,41 @@ class TopicQuery
   end
   def remove_muted_tags(list, user, opts = nil)
     if user.nil? || !SiteSetting.tagging_enabled || !SiteSetting.remove_muted_tags_from_latest
-      list
-    else
-      if !TagUser.lookup(user, :muted).exists?
-        list
-      else
-        showing_tag = if opts[:filter]
-          f = opts[:filter].split('/')
-          f[0] == 'tags' ? f[1] : nil
-        else
-          nil
-        end
+      return list
+    end
 
-        if TagUser.lookup(user, :muted).joins(:tag).where('tags.name = ?', showing_tag).exists?
-          list # if viewing the topic list for a muted tag, show all the topics
-        else
-          muted_tag_ids = TagUser.lookup(user, :muted).pluck(:tag_id)
-          list = list.where("
-            EXISTS (
-              SELECT 1
-                FROM topic_tags tt
-               WHERE tt.tag_id NOT IN (:tag_ids)
-                 AND tt.topic_id = topics.id
-            ) OR NOT EXISTS (SELECT 1 FROM topic_tags tt WHERE tt.topic_id = topics.id)", tag_ids: muted_tag_ids)
-        end
-      end
+    muted_tag_ids = TagUser.lookup(user, :muted).pluck(:tag_id)
+    if muted_tag_ids.blank?
+      return list
+    end
+
+    showing_tag = if opts[:filter]
+      f = opts[:filter].split('/')
+      f[0] == 'tags' ? f[1] : nil
+    else
+      nil
+    end
+
+    # if viewing the topic list for a muted tag, show all the topics
+    if showing_tag.present? && TagUser.lookup(user, :muted).joins(:tag).where('tags.name = ?', showing_tag).exists?
+      return list
+    end
+
+    if SiteSetting.mute_other_present_tags
+      list = list.where("
+        NOT EXISTS(
+          SELECT 1
+            FROM topic_tags tt
+           WHERE tt.tag_id IN (:tag_ids)
+             AND tt.topic_id = topics.id)", tag_ids: muted_tag_ids)
+    else
+      list = list.where("
+        EXISTS (
+          SELECT 1
+            FROM topic_tags tt
+           WHERE tt.tag_id NOT IN (:tag_ids)
+             AND tt.topic_id = topics.id
+        ) OR NOT EXISTS (SELECT 1 FROM topic_tags tt WHERE tt.topic_id = topics.id)", tag_ids: muted_tag_ids)
     end
   end
 

spec/components/topic_query_spec.rb

@@ -250,6 +250,7 @@ describe TopicQuery do
 
       muted_topic = Fabricate(:topic, tags: [muted_tag])
       tagged_topic = Fabricate(:topic, tags: [other_tag])
+      muted_tagged_topic = Fabricate(:topic, tags: [muted_tag, other_tag])
       untagged_topic = Fabricate(:topic)
 
       TagUser.create!(user_id: user.id,
@@ -257,12 +258,18 @@ describe TopicQuery do
                       notification_level: CategoryUser.notification_levels[:muted])
 
       topic_ids = topic_query.list_latest.topics.map(&:id)
-
       expect(topic_ids).to contain_exactly(tagged_topic.id, untagged_topic.id)
 
       topic_ids = topic_query.list_new.topics.map(&:id)
-
       expect(topic_ids).to contain_exactly(tagged_topic.id, untagged_topic.id)
+
+      SiteSetting.mute_other_present_tags = false
+
+      topic_ids = topic_query.list_latest.topics.map(&:id)
+      expect(topic_ids).to contain_exactly(muted_tagged_topic.id, tagged_topic.id, untagged_topic.id)
+
+      topic_ids = topic_query.list_new.topics.map(&:id)
+      expect(topic_ids).to contain_exactly(muted_tagged_topic.id, tagged_topic.id, untagged_topic.id)
     end
   end