4 files changed, 23 insertions, 4 deletions
diff --git a/app/models/account_conversation.rb b/app/models/account_conversation.rb
index b7447d805..cc6b39279 100644
--- a/app/models/account_conversation.rb
+++ b/app/models/account_conversation.rb
@@ -58,6 +58,9 @@ class AccountConversation < ApplicationRecord
 
     def add_status(recipient, status)
       conversation = find_or_initialize_by(account: recipient, conversation_id: status.conversation_id, participant_account_ids: participants_from_status(recipient, status))
+
+      return conversation if conversation.status_ids.include?(status.id)
+
       conversation.status_ids << status.id
       conversation.unread = status.account_id != recipient.id
       conversation.save
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index 3e3cbdaed..0f787ebc4 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -148,6 +148,7 @@ class MediaAttachment < ApplicationRecord
     "#{x},#{y}"
   end
 
+  after_commit :reset_parent_cache, on: :update
   before_create :prepare_description, unless: :local?
   before_create :set_shortcode
   before_post_process :set_type_and_extension
@@ -252,4 +253,9 @@ class MediaAttachment < ApplicationRecord
       bitrate: movie.bitrate,
     }
   end
+
+  def reset_parent_cache
+    return if status_id.nil?
+    Rails.cache.delete("statuses/#{status_id}")
+  end
 end
diff --git a/app/models/status.rb b/app/models/status.rb
index 438863589..f67a05b3c 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -94,6 +94,7 @@ class Status < ApplicationRecord
                    :conversation,
                    :status_stat,
                    :tags,
+                   :preview_cards,
                    :stream_entry,
                    active_mentions: :account,
                    reblog: [
@@ -101,6 +102,7 @@ class Status < ApplicationRecord
                      :application,
                      :stream_entry,
                      :tags,
+                     :preview_cards,
                      :media_attachments,
                      :conversation,
                      :status_stat,
@@ -168,6 +170,10 @@ class Status < ApplicationRecord
     reblog
   end
 
+  def preview_card
+    preview_cards.first
+  end
+
   def title
     if destroyed?
       "#{account.acct} deleted status"
@@ -241,10 +247,6 @@ class Status < ApplicationRecord
   before_validation :set_local
 
   class << self
-    def cache_ids
-      left_outer_joins(:status_stat).select('statuses.id, greatest(statuses.updated_at, status_stats.updated_at) AS updated_at')
-    end
-
     def selectable_visibilities
       visibilities.keys - %w(direct limited)
     end
diff --git a/app/models/status_stat.rb b/app/models/status_stat.rb
index 9d358776b..024c467e7 100644
--- a/app/models/status_stat.rb
+++ b/app/models/status_stat.rb
@@ -14,4 +14,12 @@
 
 class StatusStat < ApplicationRecord
   belongs_to :status, inverse_of: :status_stat
+
+  after_commit :reset_parent_cache
+
+  private
+
+  def reset_parent_cache
+    Rails.cache.delete("statuses/#{status_id}")
+  end
 end