#422

backend/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2026_09_22_040000) do
+ActiveRecord::Schema[8.0].define(version: 2026_10_03_010000) do
   create_table "active_storage_attachments", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -440,6 +440,49 @@ ActiveRecord::Schema[8.0].define(version: 2026_09_22_040000) do
     t.index ["user_id"], name: "index_settings_on_user_id", unique: true
   end
 
+  create_table "tag_description_versions", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.bigint "tag_id", null: false
+    t.string "language_code", limit: 16, null: false
+    t.integer "version_no", null: false
+    t.string "event_type", null: false
+    t.text "body", null: false
+    t.string "source_language_code", limit: 16
+    t.integer "source_version_no"
+    t.bigint "created_by_user_id"
+    t.datetime "created_at", null: false
+    t.index ["created_by_user_id"], name: "index_tag_description_versions_on_created_by_user_id"
+    t.index ["tag_id", "language_code", "version_no"], name: "idx_on_tag_id_language_code_version_no_ced77e57e6", unique: true
+    t.index ["tag_id", "source_language_code", "source_version_no"], name: "fk_rails_4f13094dbc"
+    t.index ["tag_id"], name: "index_tag_description_versions_on_tag_id"
+    t.check_constraint "((`source_language_code` is null) and (`source_version_no` is null)) or ((`source_language_code` is not null) and (`source_version_no` is not null))", name: "chk_tag_description_versions_source_pair"
+    t.check_constraint "(`source_language_code` is null) or (`source_language_code` <> `language_code`)", name: "chk_tag_description_versions_source_language_code_different"
+    t.check_constraint "`event_type` in (_utf8mb4'create',_utf8mb4'update',_utf8mb4'discard',_utf8mb4'restore')", name: "tag_description_versions_event_type_valid"
+    t.check_constraint "`version_no` > 0", name: "chk_tag_description_versions_version_no_positive"
+  end
+
+  create_table "tag_descriptions", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.bigint "tag_id", null: false
+    t.string "language_code", limit: 16, null: false
+    t.integer "version_no", null: false
+    t.text "body", null: false
+    t.string "source_language_code", limit: 16
+    t.integer "source_version_no"
+    t.bigint "created_by_user_id"
+    t.bigint "updated_by_user_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["created_by_user_id"], name: "index_tag_descriptions_on_created_by_user_id"
+    t.index ["language_code"], name: "index_tag_descriptions_on_language_code"
+    t.index ["source_language_code", "source_version_no"], name: "idx_on_source_language_code_source_version_no_00117fe02a"
+    t.index ["tag_id", "language_code"], name: "index_tag_descriptions_on_tag_id_and_language_code", unique: true
+    t.index ["tag_id", "source_language_code", "source_version_no"], name: "fk_rails_d1be0a7696"
+    t.index ["tag_id"], name: "index_tag_descriptions_on_tag_id"
+    t.index ["updated_by_user_id"], name: "index_tag_descriptions_on_updated_by_user_id"
+    t.check_constraint "((`source_language_code` is null) and (`source_version_no` is null)) or ((`source_language_code` is not null) and (`source_version_no` is not null))", name: "chk_tag_descriptions_source_pair"
+    t.check_constraint "(`source_language_code` is null) or (`source_language_code` <> `language_code`)", name: "chk_tag_descriptions_source_language_code_different"
+    t.check_constraint "`version_no` > 0", name: "chk_tag_descriptions_version_no_positive"
+  end
+
   create_table "tag_implications", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.bigint "tag_id", null: false
     t.bigint "parent_tag_id", null: false
@@ -656,19 +699,6 @@ ActiveRecord::Schema[8.0].define(version: 2026_09_22_040000) do
     t.index ["banned_at"], name: "index_users_on_banned_at"
   end
 
-  create_table "wiki_assets", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
-    t.bigint "wiki_page_id", null: false
-    t.integer "no", null: false
-    t.string "alt_text"
-    t.binary "sha256", limit: 32, null: false
-    t.bigint "created_by_user_id", null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["created_by_user_id"], name: "index_wiki_assets_on_created_by_user_id"
-    t.index ["wiki_page_id", "no"], name: "index_wiki_assets_on_wiki_page_id_and_no", unique: true
-    t.index ["wiki_page_id", "sha256"], name: "index_wiki_assets_on_wiki_page_id_and_sha256", unique: true
-  end
-
   create_table "wiki_lines", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "sha256", limit: 64, null: false
     t.text "body", null: false
@@ -685,7 +715,6 @@ ActiveRecord::Schema[8.0].define(version: 2026_09_22_040000) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.datetime "discarded_at"
-    t.integer "next_asset_no", default: 1, null: false
     t.integer "version_no", null: false
     t.index ["created_user_id"], name: "index_wiki_pages_on_created_user_id"
     t.index ["discarded_at"], name: "index_wiki_pages_on_discarded_at"
@@ -788,6 +817,12 @@ ActiveRecord::Schema[8.0].define(version: 2026_09_22_040000) do
   add_foreign_key "post_versions", "users", column: "created_by_user_id"
   add_foreign_key "posts", "users", column: "uploaded_user_id"
   add_foreign_key "settings", "users"
+  add_foreign_key "tag_description_versions", "tag_description_versions", column: ["tag_id", "source_language_code", "source_version_no"], primary_key: ["tag_id", "language_code", "version_no"]
+  add_foreign_key "tag_descriptions", "languages", column: "language_code", primary_key: "code"
+  add_foreign_key "tag_descriptions", "tag_description_versions", column: ["tag_id", "source_language_code", "source_version_no"], primary_key: ["tag_id", "language_code", "version_no"]
+  add_foreign_key "tag_descriptions", "tags"
+  add_foreign_key "tag_descriptions", "users", column: "created_by_user_id"
+  add_foreign_key "tag_descriptions", "users", column: "updated_by_user_id"
   add_foreign_key "tag_implications", "tags"
   add_foreign_key "tag_implications", "tags", column: "parent_tag_id"
   add_foreign_key "tag_names", "languages", column: "language_code", primary_key: "code"
@@ -822,8 +857,6 @@ ActiveRecord::Schema[8.0].define(version: 2026_09_22_040000) do
   add_foreign_key "user_post_views", "posts"
   add_foreign_key "user_post_views", "users"
   add_foreign_key "user_theme_slots", "users"
-  add_foreign_key "wiki_assets", "users", column: "created_by_user_id"
-  add_foreign_key "wiki_assets", "wiki_pages"
   add_foreign_key "wiki_pages", "tag_names"
   add_foreign_key "wiki_pages", "users", column: "created_user_id"
   add_foreign_key "wiki_pages", "users", column: "updated_user_id"