refactor(mobility): switch to Drizzle ORM and remove raw SQLite usage

- replace Database with db instance
- use schema imports for tables
- use db.select, db.insert, onConflictDoUpdate
- remove manual connection handling and console logs
- improve type safety and maintainability

refactor(students): migrate to Drizzle ORM and async queries

Replace raw sqlite queries with Drizzle ORM. Remove the connect helper and use the
shared db instance and schema definitions. Convert getItself, getAll and
addStudents to async functions, use eq and lt helpers, and simplify promotion
handling. This improves type safety, maintainability, and allows non‑blocking
database access.

Dockerfile

@@ -3,11 +3,10 @@ FROM denoland/deno:alpine
 WORKDIR /app
 
 COPY . .
-
 RUN deno cache main.ts --allow-import
 RUN deno task build
 
-
+USER deno
 EXPOSE 80
 EXPOSE 443
 

bun.lock

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+}

databases/db.ts

@@ -0,0 +1,14 @@
+import { drizzle } from "npm:drizzle-orm/node-postgres";
+import pg from "npm:pg";
+
+const { Pool } = pg;
+
+const pool = new Pool({
+  host: Deno.env.get("POSTGRES_HOST"),
+  port: Number(Deno.env.get("POSTGRES_PORT") ?? 5432),
+  user: Deno.env.get("POSTGRES_USER"),
+  password: Deno.env.get("POSTGRES_PASS"),
+  database: Deno.env.get("POSTGRES_DB"),
+});
+
+export const db = drizzle(pool);

databases/schema.ts

@@ -0,0 +1,32 @@
+import {
+  date,
+  integer,
+  pgTable,
+  serial,
+  text,
+} from "npm:drizzle-orm/pg-core";
+
+export const promotions = pgTable("promotions", {
+  id: serial("id").primaryKey(),
+  endyear: integer("endyear"),
+  current: integer("current"),
+});
+
+export const students = pgTable("students", {
+  userId: text("userId").primaryKey(),
+  firstName: text("firstName"),
+  lastName: text("lastName"),
+  mail: text("mail"),
+  promotionId: integer("promotionId").references(() => promotions.id),
+});
+
+export const mobility = pgTable("mobility", {
+  id: serial("id").primaryKey(),
+  studentId: text("studentId").references(() => students.userId),
+  startDate: date("startDate"),
+  endDate: date("endDate"),
+  weeksCount: integer("weeksCount"),
+  destinationCountry: text("destinationCountry"),
+  destinationName: text("destinationName"),
+  mobilityStatus: text("mobilityStatus").default("N/A"),
+});

drizzle.config.ts

@@ -0,0 +1,14 @@
+import { defineConfig } from "drizzle-kit";
+
+export default defineConfig({
+  dialect: "postgresql",
+  schema: "./databases/schema.ts",
+  out: "./databases/migrations",
+  dbCredentials: {
+    host: process.env.POSTGRES_HOST!,
+    port: Number(process.env.POSTGRES_PORT ?? 5432),
+    user: process.env.POSTGRES_USER!,
+    password: process.env.POSTGRES_PASS!,
+    database: process.env.POSTGRES_DB!,
+  },
+});

env.template

@@ -1,2 +1,8 @@
 #Local mode, set to true to access admin pages with any users
 LOCAL=false
+
+POSTGRES_HOST = db
+POSTGRES_PORT = 5432
+POSTGRES_PASS = astrongpass
+POSTGRES_USER = postgres
+POSTGRES_DB = polympr

fresh.gen.ts

@@ -3,9 +3,8 @@
 // This file is automatically updated during development when running `dev.ts`.
 
 import * as $_apps_layout from "./routes/(apps)/_layout.tsx";
-import * as $_apps_mobility_api_download from "./routes/(apps)/mobility/api/download.ts";
+import * as $_apps_middleware from "./routes/(apps)/_middleware.ts";
-import * as $_apps_mobility_api_download_id_ from "./routes/(apps)/mobility/api/download/[id].ts";
+import * as $_apps_mobility_api_insert_mobility from "./routes/(apps)/mobility/api/insert_mobility.ts";
-import * as $_apps_mobility_api_insert_mobility from "./routes/(apps)/mobility/api/insert-mobility.ts";
 import * as $_apps_mobility_index from "./routes/(apps)/mobility/index.tsx";
 import * as $_apps_mobility_partials_admin_edit_mobility from "./routes/(apps)/mobility/partials/(admin)/edit_mobility.tsx";
 import * as $_apps_mobility_partials_index from "./routes/(apps)/mobility/partials/index.tsx";
@@ -41,15 +40,8 @@ import type { Manifest } from "$fresh/server.ts";
 const manifest = {
   routes: {
     "./routes/(apps)/_layout.tsx": $_apps_layout,
-<<<<<<< HEAD
     "./routes/(apps)/_middleware.ts": $_apps_middleware,
     "./routes/(apps)/mobility/api/insert_mobility.ts":
-=======
-    "./routes/(apps)/mobility/api/download.ts": $_apps_mobility_api_download,
-    "./routes/(apps)/mobility/api/download/[id].ts":
-      $_apps_mobility_api_download_id_,
-    "./routes/(apps)/mobility/api/insert-mobility.ts":
->>>>>>> 4f1011d (Ultimate fix and tested ! You can download contract now.)
       $_apps_mobility_api_insert_mobility,
     "./routes/(apps)/mobility/index.tsx": $_apps_mobility_index,
     "./routes/(apps)/mobility/partials/(admin)/edit_mobility.tsx":

package.json

@@ -0,0 +1,12 @@
+{
+  "dependencies": {
+    "dotenv": "^17.4.0",
+    "drizzle-orm": "^0.45.2",
+    "pg": "^8.20.0"
+  },
+  "devDependencies": {
+    "@types/pg": "^8.20.0",
+    "drizzle-kit": "^0.31.10",
+    "tsx": "^4.21.0"
+  }
+}

routes/(apps)/mobility/api/download/[id].ts

@@ -1,36 +0,0 @@
-import { Handlers } from "$fresh/server.ts";
-import connect from "$root/databases/connect.ts";
-
-export const handler: Handlers = {
-  async GET(_request, ctx) {
-    try {
-      const { id } = ctx.params;
-
-      if (!id) {
-        return new Response("Invalid request: Missing ID", { status: 400 });
-      }
-
-      using connection = connect("mobility");
-
-      const query = connection.database.prepare(
-        "SELECT attestationFile FROM mobility WHERE id = ?",
-      );
-      const result = query.get(id);
-
-      if (!result || !result.attestationFile) {
-        return new Response("No file found for the given ID", { status: 404 });
-      }
-
-      return new Response(result.attestationFile, {
-        status: 200,
-        headers: {
-          "Content-Type": "application/pdf",
-          "Content-Disposition": `attachment; filename="attestation_${id}.pdf"`,
-        },
-      });
-    } catch (error) {
-      console.error("Error fetching file:", error);
-      return new Response("Failed to fetch file", { status: 500 });
-    }
-  },
-};

routes/(apps)/mobility/api/insert-mobility.ts

@@ -1,131 +0,0 @@
-import { Handlers } from "$fresh/server.ts";
-import connect from "$root/databases/connect.ts";
-
-export const handler: Handlers = {
-  // deno-lint-ignore require-await
-  async GET() {
-    try {
-      using connection = connect("mobility");
-
-      const mobilities = connection.database.prepare(
-        `SELECT 
-          mobility.id, 
-          mobility.studentId, 
-          mobility.startDate, 
-          mobility.endDate, 
-          mobility.weeksCount, 
-          mobility.destinationCountry, 
-          mobility.destinationName, 
-          mobility.mobilityStatus, 
-          mobility.attestationFile -- Inclure le fichier
-        FROM mobility`
-      ).all();
-
-      const students = connection.database.prepare(
-        `SELECT 
-          students.userId AS id, 
-          students.firstName, 
-          students.lastName, 
-          students.promotionId AS promotionId, 
-          promotions.name AS promotionName
-        FROM students.students
-        LEFT JOIN students.promotions ON students.promotionId = promotions.id`
-      ).all();
-
-      const promotions = connection.database.prepare(
-        `SELECT id, name FROM students.promotions`
-      ).all();
-
-      return new Response(
-        JSON.stringify({ mobilities, students, promotions }),
-        {
-          status: 200,
-          headers: { "Content-Type": "application/json" },
-        },
-      );
-    } catch (error) {
-      console.error("Error fetching mobility data:", error);
-      return new Response("Failed to fetch data", { status: 500 });
-    }
-  },
-
-  async POST(request) {
-    console.log("API /mobility/api/insert-mobility POST called");
-
-    try {
-      const formData = await request.formData();
-      const dataEntries = formData.getAll("data").map((item) => JSON.parse(item as string));
-      console.log("Parsed data entries:", dataEntries);
-
-      const fileMap: Record<string, Uint8Array> = {};
-      for (const [key, value] of formData.entries()) {
-        if (key.startsWith("file_") && value instanceof File) {
-          const studentId = key.split("_")[1]; 
-          const file = value as File;
-          fileMap[studentId] = new Uint8Array(await file.arrayBuffer());
-          console.log(`File processed for studentId ${studentId}`);
-        }
-      }
-
-      using connection = connect("mobility");
-      const insertQuery = connection.database.prepare(
-        `INSERT INTO mobility (
-          id, studentId, startDate, endDate, weeksCount, destinationCountry, destinationName, mobilityStatus, attestationFile
-        )
-        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
-        ON CONFLICT(id) DO UPDATE SET
-          startDate = excluded.startDate,
-          endDate = excluded.endDate,
-          weeksCount = excluded.weeksCount,
-          destinationCountry = excluded.destinationCountry,
-          destinationName = excluded.destinationName,
-          mobilityStatus = excluded.mobilityStatus,
-          attestationFile = COALESCE(excluded.attestationFile, mobility.attestationFile)`
-      );
-
-      for (const mobility of dataEntries) {
-        const {
-          id = null,
-          studentId,
-          startDate,
-          endDate,
-          destinationCountry,
-          destinationName,
-          mobilityStatus = "N/A",
-        } = mobility;
-
-        let calculatedWeeksCount = null;
-        if (startDate && endDate) {
-          const start = new Date(startDate);
-          const end = new Date(endDate);
-          if (start <= end) {
-            const differenceInDays = Math.ceil(
-              (end.getTime() - start.getTime()) / (24 * 60 * 60 * 1000)
-            );
-            calculatedWeeksCount = Math.floor(differenceInDays / 7);
-          }
-        }
-        const attestationFile = fileMap[studentId] ?? null;
-
-        console.log(`Inserting/Updating mobility for studentId: ${studentId}`);
-        insertQuery.run(
-          id,
-          studentId,
-          startDate,
-          endDate,
-          calculatedWeeksCount,
-          destinationCountry,
-          destinationName,
-          mobilityStatus,
-          attestationFile
-        );
-      }
-
-      console.log("Mobility data inserted/updated successfully.");
-      return new Response("Data inserted/updated successfully", { status: 200 });
-    } catch (error) {
-      console.error("Error inserting mobility data:", error);
-      return new Response("Failed to insert/update data", { status: 500 });
-    }
-  },
-};

routes/(apps)/mobility/api/insert_mobility.ts

@@ -1,55 +1,36 @@
 import { Handlers } from "$fresh/server.ts";
-import { Database } from "@db/sqlite";
+import { db } from "$root/databases/db.ts";
+import { mobility, promotions, students } from "$root/databases/schema.ts";
+import { eq } from "npm:drizzle-orm";
 
 export const handler: Handlers = {
-  // deno-lint-ignore require-await
   async GET() {
     try {
-      console.log("Connecting to mobility database...");
+      const studentRows = await db
-      const connection = new Database("databases/data/mobility.db", {
+        .select({
-        create: false,
+          id: students.userId,
-      });
+          firstName: students.firstName,
-      connection.run(
+          lastName: students.lastName,
-        "ATTACH DATABASE 'databases/data/students.db' AS students",
+          promotionId: students.promotionId,
-      );
+          endyear: promotions.endyear,
-      console.log("Connected to databases.");
+          current: promotions.current,
+        })
+        .from(students)
+        .leftJoin(promotions, eq(students.promotionId, promotions.id));
 
-      const students = connection.prepare(
+      const mobilityRows = await db.select().from(mobility);
-        `SELECT 
-          students.userId AS id, 
-          students.firstName, 
-          students.lastName, 
-          students.promotionId AS promotionId, 
-          promotions.name AS promotionName
-         FROM students.students
-         LEFT JOIN students.promotions ON students.promotionId = promotions.id`,
-      ).all();
 
-      const mobilities = connection.prepare(
+      const promotionRows = await db
-        `SELECT 
+        .select({ id: promotions.id, endyear: promotions.endyear, current: promotions.current })
-          mobility.id, 
+        .from(promotions);
-          mobility.studentId, 
-          mobility.startDate, 
-          mobility.endDate, 
-          mobility.weeksCount, 
-          mobility.destinationCountry, 
-          mobility.destinationName, 
-          mobility.mobilityStatus 
-        FROM mobility`,
-      ).all();
-
-      const promotions = connection.prepare(
-        `SELECT id, name FROM students.promotions`,
-      ).all();
-
-      connection.close();
 
       return new Response(
-        JSON.stringify({ mobilities, students, promotions }),
+        JSON.stringify({
-        {
+          mobilities: mobilityRows,
-          status: 200,
+          students: studentRows,
-          headers: { "Content-Type": "application/json" },
+          promotions: promotionRows,
-        },
+        }),
+        { status: 200, headers: { "Content-Type": "application/json" } },
       );
     } catch (error) {
       console.error("Error fetching mobility data:", error);
@@ -58,8 +39,6 @@ export const handler: Handlers = {
   },
 
   async POST(request) {
-    console.log("API /mobility/api/insert_mobility POST called");
-
     try {
       const body = await request.json();
       const { data } = body;
@@ -67,32 +46,8 @@ export const handler: Handlers = {
       if (!Array.isArray(data)) {
         throw new Error("Invalid request body");
       }
-      console.log("Connecting to mobility database...");
-      const connection = new Database("databases/data/mobility.db", {
-        create: false,
-      });
 
-      console.log("Attaching students database...");
+      for (const entry of data) {
-      connection.run(
-        "ATTACH DATABASE 'databases/data/students.db' AS students",
-      );
-      console.log("Students database attached successfully.");
-
-      const insertQuery = connection.prepare(
-        `INSERT INTO mobility (
-          id, studentId, startDate, endDate, weeksCount, destinationCountry, destinationName, mobilityStatus
-        )
-        VALUES (?, ?, ?, ?, ?, ?, ?, ?)
-        ON CONFLICT(id) DO UPDATE SET
-          startDate = excluded.startDate,
-          endDate = excluded.endDate,
-          weeksCount = excluded.weeksCount,
-          destinationCountry = excluded.destinationCountry,
-          destinationName = excluded.destinationName,
-          mobilityStatus = excluded.mobilityStatus`,
-      );
-
-      for (const mobility of data) {
         const {
           id,
           studentId,
@@ -102,19 +57,16 @@ export const handler: Handlers = {
           destinationCountry,
           destinationName,
           mobilityStatus = "N/A",
-        } = mobility;
+        } = entry;
 
-        console.log("Processing mobility data:", mobility);
+        const studentExists = await db
+          .select({ userId: students.userId })
+          .from(students)
+          .where(eq(students.userId, studentId))
+          .limit(1)
+          .then((rows) => rows.length > 0);
 
-        const studentExists = connection
+        if (!studentExists) {
-          .prepare(
-            `SELECT COUNT(*) AS count FROM students.students WHERE userId = ?`,
-          )
-          .get(studentId);
-
-        console.log(`Student ${studentId} exists:`, studentExists.count > 0);
-
-        if (studentExists.count === 0) {
           console.warn(`Skipping mobility for unknown studentId: ${studentId}`);
           continue;
         }
@@ -123,43 +75,39 @@ export const handler: Handlers = {
         if (startDate && endDate) {
           const start = new Date(startDate);
           const end = new Date(endDate);
-          if (start <= end) {
+          calculatedWeeksCount = start <= end
-            calculatedWeeksCount = Math.ceil(
+            ? Math.ceil(
               (end.getTime() - start.getTime()) / (7 * 24 * 60 * 60 * 1000),
-            );
+            )
-          } else {
+            : null;
-            calculatedWeeksCount = null;
-          }
         }
 
-        console.log("Executing SQL insert/update query for:", {
+        await db
-          id,
+          .insert(mobility)
-          studentId,
+          .values({
-          startDate,
+            id,
-          endDate,
+            studentId,
-          calculatedWeeksCount,
+            startDate,
-          destinationCountry,
+            endDate,
-          destinationName,
+            weeksCount: calculatedWeeksCount,
-          mobilityStatus,
+            destinationCountry,
-        });
+            destinationName,
-
+            mobilityStatus,
-        insertQuery.run(
+          })
-          id,
+          .onConflictDoUpdate({
-          studentId,
+            target: mobility.id,
-          startDate,
+            set: {
-          endDate,
+              startDate,
-          calculatedWeeksCount,
+              endDate,
-          destinationCountry,
+              weeksCount: calculatedWeeksCount,
-          destinationName,
+              destinationCountry,
-          mobilityStatus,
+              destinationName,
-        );
+              mobilityStatus,
+            },
+          });
       }
 
-      connection.close();
+      return new Response("Data inserted/updated successfully", { status: 200 });
-      console.log("Mobility data inserted/updated successfully.");
-      return new Response("Data inserted/updated successfully", {
-        status: 200,
-      });
     } catch (error) {
       console.error("Error inserting mobility data:", error);
       return new Response("Failed to insert/update data", { status: 500 });

routes/(apps)/students/api/insert_students.ts

@@ -1,84 +0,0 @@
-import { Handlers } from "$fresh/server.ts";
-import connect from "$root/databases/connect.ts";
-
-// Rendre l'API plus simple car xlsx pour l'import c'est nul :/
-export const handler: Handlers = {
-  // deno-lint-ignore require-await
-  async GET() {
-    try {
-      using connection = connect("students");
-
-      const promotions = connection.database.prepare(
-        "select id, name from promotions",
-      ).all();
-
-      const students = connection.database
-        .prepare(
-          `select userId, firstName, lastName, mail, promotionId from students`,
-        )
-        .all();
-
-      return new Response(
-        JSON.stringify({ promotions, students }),
-        {
-          status: 200,
-          headers: { "Content-Type": "application/json" },
-        },
-      );
-    } catch (error) {
-      console.error("Error fetching data:", error);
-      return new Response("Failed to fetch data", { status: 500 });
-    }
-  },
-
-  async POST(request) {
-    console.log("API /students/api/insert_students called");
-
-    try {
-      const body = await request.json();
-      const { data, promoName } = body;
-
-      console.log("Received data:", { promoName, data });
-
-      if (!promoName || !Array.isArray(data)) {
-        throw new Error("Invalid request body");
-      }
-
-      using connection = connect("students");
-
-      connection.database.prepare(
-        "INSERT OR IGNORE INTO promotions (name) VALUES (?)",
-      ).run(promoName);
-
-      const promoIdRow: { id: number } = connection.database
-        .prepare("SELECT id FROM promotions WHERE name = ?")
-        .get(promoName)!;
-      const promoId = promoIdRow.id;
-
-      console.log(`Promotion ID for "${promoName}":`, promoId);
-
-      const insertQuery = connection.database.prepare(
-        `INSERT INTO students 
-        (userId, firstName, lastName, mail, promotionId) 
-        VALUES (?, ?, ?, ?, ?)`,
-      );
-
-      for (const student of data) {
-        console.log("Inserting student:", student);
-        insertQuery.run(
-          student.Identifiant,
-          student.Nom,
-          student["Prénom"],
-          student.Mail,
-          promoId,
-        );
-      }
-
-      console.log("All data inserted successfully");
-      return new Response("Data inserted successfully", { status: 201 });
-    } catch (error) {
-      console.error("Error inserting data:", error);
-      return new Response("Failed to insert data", { status: 500 });
-    }
-  },
-};

routes/(apps)/students/api/students.ts

@@ -1,150 +1,121 @@
 import { FreshContext, Handlers } from "$fresh/server.ts";
-import connect from "$root/databases/connect.ts";
+import { db } from "$root/databases/db.ts";
+import { promotions, students } from "$root/databases/schema.ts";
 import { AuthenticatedState } from "$root/defaults/interfaces.ts";
-import { Database } from "@db/sqlite";
+import { eq, lt } from "npm:drizzle-orm";
 
-/**
+async function getItself(
- * Gets itself from the database.
- * @param database The database connection
- * @param userId The user ID.
- * @returns Itself from the database.
- */
-function getItself(
-  database: Database,
   userId: string,
-): { student: Student | null; promo: Promotion | null } {
+): Promise<{ student: Student | null; promo: Promotion | null }> {
-  const studentQuery = "select * from students where userId = ?";
+  const student = await db
-  const student: Student | undefined = database.prepare(studentQuery).get(
+    .select()
-    userId,
+    .from(students)
-  );
+    .where(eq(students.userId, userId))
+    .limit(1)
+    .then((rows) => rows[0] ?? null);
 
   if (!student) {
     return { student: null, promo: null };
   }
 
-  const promoQuery = "select * from promotions where id = ?";
+  const promo = await db
-  const promo: Promotion | undefined = database.prepare(promoQuery).get(
+    .select()
-    student.promotionId,
+    .from(promotions)
-  );
+    .where(eq(promotions.id, student.promotionId!))
+    .limit(1)
+    .then((rows) => rows[0] ?? null);
 
-  return { student, promo: promo ?? null };
+  return { student, promo };
 }
 
-/**
+async function getAll(): Promise<
- * Gets itself from the database.
+  { students: Student[]; promos: Promotion[] }
- * @param database The database connexion
+> {
- * @param userId The user ID.
+  const rows = await db
- * @returns Itself from the database.
+    .select({
- */
+      userId: students.userId,
-function getAll(
+      firstName: students.firstName,
-  database: Database,
+      lastName: students.lastName,
-): { students: Student[]; promos: Promotion[] } {
+      mail: students.mail,
-  const studentsQuery = `
+      promotionId: students.promotionId,
-    select userId, firstName, lastName, mail, promotionId
+    })
-    from students inner join promotions
+    .from(students)
-    on students.promotionId = promotions.id
+    .innerJoin(promotions, eq(students.promotionId, promotions.id))
-    where promotions.current < 6`;
+    .where(lt(promotions.current, 6));
-  const students: Student[] = database.prepare(studentsQuery).all();
 
-  const promosQuery = "select * from promotions where promotions.current < 6";
+  const promos = await db
-  const promos: Promotion[] | undefined = database.prepare(promosQuery).all();
+    .select()
+    .from(promotions)
+    .where(lt(promotions.current, 6));
 
-  return { students, promos };
+  return { students: rows as Student[], promos };
 }
 
-/**
+async function addStudents(
- * Add users to the database.
+  studentList: Student[],
- * @param database The database connexion
+  promoId: number,
- * @param students The students to add
+): Promise<void> {
- * @param promoId The promotion id.
+  for (const student of studentList) {
- */
+    await db
-function addStudents(database: Database, students: Student[], promoId: string) {
+      .insert(students)
-  const query = `
+      .values({
-    INSERT INTO students 
+        userId: student.userId,
-    (userId, firstName, lastName, mail, promotionId) 
+        firstName: student.firstName,
-    VALUES (?, ?, ?, ?, ?)`;
+        lastName: student.lastName,
-
+        mail: student.mail,
-  const statement = database.prepare(query);
+        promotionId: promoId,
-
+      })
-  for (const student of students) {
+      .onConflictDoNothing();
-    statement.run(
-      student.userId,
-      student.firstName,
-      student.lastName,
-      student.mail,
-      promoId,
-    );
   }
 }
 
 export const handler: Handlers<null, AuthenticatedState> = {
-  /**
-   * The students the user can see.
-   * @param _request The HTTP request.
-   * @param _context The context with authenticated state.
-   * @returns All students our user can see.
-   */
-  // deno-lint-ignore require-await
   async GET(
     _request: Request,
     context: FreshContext<AuthenticatedState>,
   ): Promise<Response> {
-    using connection = connect("students");
-    const database = connection.database;
-
     if (context.state.session.eduPersonPrimaryAffiliation == "student") {
       return new Response(
-        JSON.stringify(getItself(database, context.state.session.uid)),
+        JSON.stringify(await getItself(context.state.session.uid)),
-        {
+        { headers: { "content-type": "application/json" } },
-          headers: {
-            "content-type": "application/json",
-          },
-        },
       );
     }
 
     return new Response(
-      JSON.stringify(getAll(database)),
+      JSON.stringify(await getAll()),
-      {
+      { headers: { "content-type": "application/json" } },
-        headers: {
-          "content-type": "application/json",
-        },
-      },
     );
   },
-  /**
+
-   * Add students in the database.
-   * @param request The HTTP request.
-   * @param _context The Fresh context.
-   * @returns HTTP 201 on successful insert.
-   */
   async POST(
     request: Request,
     _context: FreshContext<AuthenticatedState>,
   ): Promise<Response> {
-    const { students, promo }: { students: Student[]; promo: string } =
+    const { students: studentList, promo }: {
-      await request.json();
+      students: Student[];
+      promo: string;
+    } = await request.json();
 
-    if (!promo || !promo.match(/^\d{4}-\dA$/) || !Array.isArray(students)) {
+    if (!promo || !promo.match(/^\d{4}-\dA$/) || !Array.isArray(studentList)) {
       return new Response(null, { status: 400 });
     }
 
-    using connection = connect("students");
-    const database = connection.database;
-
     const { endyear, current } = promo.match(
       /^(?<endyear>\d{4})-(?<current>\d)A$/,
     )?.groups!;
 
-    database.prepare(
+    await db
-      "insert or ignore into promotions (endyear, current) values (?, ?)",
+      .insert(promotions)
-    ).run(endyear, current);
+      .values({ endyear: Number(endyear), current: Number(current) })
+      .onConflictDoNothing();
 
-    const { id: promoId }: { id: string } = database
+    const promo_row = await db
-      .prepare("select id from promotions where endyear = ? and current = ?")
+      .select()
-      .get(endyear, current)!;
+      .from(promotions)
+      .where(eq(promotions.endyear, Number(endyear)))
+      .then((rows) => rows.find((r) => r.current === Number(current))!);
 
-    addStudents(database, students, promoId);
+    await addStudents(studentList, promo_row.id);
 
     return new Response(null, { status: 201 });
   },