add unique constraint

src/schema.ts

@@ -3,6 +3,7 @@ import {
   text,
   integer,
   primaryKey,
+  unique,
 } from "drizzle-orm/sqlite-core";
 import { relations, sql } from "drizzle-orm";
 
@@ -41,7 +42,7 @@ export const userRelation = relations(user, ({ many, one }) => ({
 //----------------Group
 export const group = sqliteTable("groups", {
   id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
-  name: text("name").notNull(),
+  name: text("name").unique().notNull(),
 });
 
 export const groupRelation = relations(group, ({ many }) => ({
@@ -51,7 +52,7 @@ export const groupRelation = relations(group, ({ many }) => ({
 //----------------Opinion
 export const opinion = sqliteTable("opinions", {
   id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
-  name: text("name").notNull(),
+  name: text("name").unique().notNull(),
   type: text("type", { enum: ["3Choice", "4Choice"] })
     .default("3Choice")
     .notNull(),
@@ -84,13 +85,17 @@ export const userOpinionRelation = relations(userOpinion, ({ one }) => ({
 }));
 
 //----------------Zone
-export const zone = sqliteTable("zones", {
+export const zone = sqliteTable(
-  id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
+  "zones",
-  name: text("name").notNull(),
+  {
-  province: integer("province_id")
+    id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
-    .notNull()
+    name: text("name").notNull(),
-    .references(() => province.id),
+    province: integer("province_id")
-});
+      .notNull()
+      .references(() => province.id),
+  },
+  (t) => ({ unique_name_province: unique().on(t.name, t.province) })
+);
 export const zoneRelation = relations(zone, ({ one }) => ({
   province: one(province, {
     fields: [zone.province],
@@ -101,7 +106,7 @@ export const zoneRelation = relations(zone, ({ one }) => ({
 //----------------Province
 export const province = sqliteTable("provinces", {
   id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
-  name: text("name").notNull(),
+  name: text("name").unique().notNull(),
 });
 
 export const provinceRelation = relations(province, ({ many }) => ({