Tag linked FeaturedCollection objects over ActivityPub (#38115)

db/migrate/20260319142348_create_tagged_objects.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class CreateTaggedObjects < ActiveRecord::Migration[8.1]
+  def change
+    create_table :tagged_objects do |t|
+      t.references :status, null: false, foreign_key: { on_delete: :cascade }, index: false
+      t.references :object, polymorphic: true, null: true
+      t.string :ap_type, null: false
+      t.string :uri
+
+      t.timestamps
+    end
+
+    add_index :tagged_objects, [:status_id, :object_type, :object_id], unique: true, where: 'object_type IS NOT NULL AND object_id IS NOT NULL'
+    add_index :tagged_objects, [:status_id, :uri], unique: true, where: 'uri IS NOT NULL'
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.1].define(version: 2026_03_18_144837) do
+ActiveRecord::Schema[8.1].define(version: 2026_03_19_142348) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
 
@@ -1242,6 +1242,19 @@ ActiveRecord::Schema[8.1].define(version: 2026_03_18_144837) do
     t.index ["tag_id", "language"], name: "index_tag_trends_on_tag_id_and_language", unique: true
   end
 
+  create_table "tagged_objects", force: :cascade do |t|
+    t.string "ap_type", null: false
+    t.datetime "created_at", null: false
+    t.bigint "object_id"
+    t.string "object_type"
+    t.bigint "status_id", null: false
+    t.datetime "updated_at", null: false
+    t.string "uri"
+    t.index ["object_type", "object_id"], name: "index_tagged_objects_on_object"
+    t.index ["status_id", "object_type", "object_id"], name: "idx_on_status_id_object_type_object_id_d6ebe374bd", unique: true, where: "((object_type IS NOT NULL) AND (object_id IS NOT NULL))"
+    t.index ["status_id", "uri"], name: "index_tagged_objects_on_status_id_and_uri", unique: true, where: "(uri IS NOT NULL)"
+  end
+
   create_table "tags", force: :cascade do |t|
     t.datetime "created_at", precision: nil, null: false
     t.string "display_name"
@@ -1547,6 +1560,7 @@ ActiveRecord::Schema[8.1].define(version: 2026_03_18_144837) do
   add_foreign_key "tag_follows", "accounts", on_delete: :cascade
   add_foreign_key "tag_follows", "tags", on_delete: :cascade
   add_foreign_key "tag_trends", "tags", on_delete: :cascade
+  add_foreign_key "tagged_objects", "statuses", on_delete: :cascade
   add_foreign_key "tombstones", "accounts", on_delete: :cascade
   add_foreign_key "user_invite_requests", "users", on_delete: :cascade
   add_foreign_key "users", "accounts", name: "fk_50500f500d", on_delete: :cascade