FIX: Determine uncategorized category name using new core pattern

lib/discourse_chat/provider/mattermost/mattermost_provider.rb

@@ -41,7 +41,9 @@ module DiscourseChat
         topic = post.topic
 
         category = ''
-        if topic.category
+        if topic.category&.uncategorized?
+          category = "[#{I18n.t('uncategorized_category_name')}]"
+        elsif topic.category
           category = (topic.category.parent_category) ? "[#{topic.category.parent_category.name}/#{topic.category.name}]" : "[#{topic.category.name}]"
         end
 
@@ -65,7 +67,7 @@ module DiscourseChat
           author_icon: post.user.small_avatar_url,
           color: topic.category ? "##{topic.category.color}" : nil,
           text: post.excerpt(SiteSetting.chat_integration_mattermost_excerpt_length, text_entities: true, strip_links: true, remap_emoji: true),
-          title: "#{topic.title} #{(category == '[uncategorized]') ? '' : category} #{topic.tags.present? ? topic.tags.map(&:name).join(', ') : ''}",
+          title: "#{topic.title} #{category} #{topic.tags.present? ? topic.tags.map(&:name).join(', ') : ''}",
           title_link: post.full_url,
         }
 

lib/discourse_chat/provider/rocketchat/rocketchat_provider.rb

@@ -20,7 +20,9 @@ module DiscourseChat::Provider::RocketchatProvider
     topic = post.topic
 
     category = ''
-    if topic.category
+    if topic.category&.uncategorized?
+      category = "[#{I18n.t('uncategorized_category_name')}]"
+    elsif topic.category
       category = (topic.category.parent_category) ? "[#{topic.category.parent_category.name}/#{topic.category.name}]" : "[#{topic.category.name}]"
     end
 
@@ -36,7 +38,7 @@ module DiscourseChat::Provider::RocketchatProvider
       color: topic.category ? "##{topic.category.color}" : nil,
       text: post.excerpt(SiteSetting.chat_integration_rocketchat_excerpt_length, text_entities: true, strip_links: true, remap_emoji: true),
       mrkdwn_in: ["text"],
-      title: "#{topic.title} #{(category == '[uncategorized]') ? '' : category} #{topic.tags.present? ? topic.tags.map(&:name).join(', ') : ''}",
+      title: "#{topic.title} #{category} #{topic.tags.present? ? topic.tags.map(&:name).join(', ') : ''}",
       title_link: post.full_url
     }
 

lib/discourse_chat/provider/slack/slack_provider.rb

@@ -29,7 +29,9 @@ module DiscourseChat::Provider::SlackProvider
     topic = post.topic
 
     category = ''
-    if topic.category
+    if topic.category&.uncategorized?
+      category = "[#{I18n.t('uncategorized_category_name')}]"
+    elsif topic.category
       category = (topic.category.parent_category) ? "[#{topic.category.parent_category.name}/#{topic.category.name}]" : "[#{topic.category.name}]"
     end
 
@@ -54,7 +56,7 @@ module DiscourseChat::Provider::SlackProvider
       color: topic.category ? "##{topic.category.color}" : nil,
       text: excerpt(post),
       mrkdwn_in: ["text"],
-      title: "#{topic.title} #{(category == '[uncategorized]') ? '' : category} #{topic.tags.present? ? topic.tags.map(&:name).join(', ') : ''}",
+      title: "#{topic.title} #{category} #{topic.tags.present? ? topic.tags.map(&:name).join(', ') : ''}",
       title_link: post.full_url,
       thumb_url: post.full_url
     }