updating schema

packages/db/src/db/schema.ts

@@ -17,6 +17,7 @@ import {
   SUPPORTED_LANGUAGE_CODES,
   CEFR_LEVELS,
   SUPPORTED_DECK_TYPES,
+  DIFFICULTY_LEVELS,
 } from "@glossa/shared";
 
 export const terms = pgTable(
@@ -72,6 +73,7 @@ export const translations = pgTable(
     language_code: varchar({ length: 10 }).notNull(),
     text: text().notNull(),
     cefr_level: varchar({ length: 2 }),
+    difficulty: varchar({ length: 20 }),
     created_at: timestamp({ withTimezone: true }).defaultNow().notNull(),
   },
   (table) => [
@@ -88,8 +90,13 @@ export const translations = pgTable(
       "cefr_check",
       sql`${table.cefr_level} IN (${sql.raw(CEFR_LEVELS.map((l) => `'${l}'`).join(", "))})`,
     ),
+    check(
+      "difficulty_check",
+      sql`${table.difficulty} IN (${sql.raw(DIFFICULTY_LEVELS.map((d) => `'${d}'`).join(", "))})`,
+    ),
     index("idx_translations_lang").on(
       table.language_code,
+      table.difficulty,
       table.cefr_level,
       table.term_id,
     ),