feat: implement product grid data fetching with schema self-healing and add a database verification script.

scripts/diagnose-db.js

@@ -0,0 +1,48 @@
+
+const { Pool } = require('pg');
+const fs = require('fs');
+const path = require('path');
+
+async function main() {
+  console.log("--- DB DIAGNOSIS Start (Node) ---");
+  
+  let connectionString = process.env.DATABASE_URL;
+  
+  try {
+    const CONFIG_PATH = path.join(process.cwd(), "data", ".db-config.json");
+    if (fs.existsSync(CONFIG_PATH)) {
+      const config = JSON.parse(fs.readFileSync(CONFIG_PATH, "utf-8"));
+      if (config.url) {
+        connectionString = config.url;
+      }
+    }
+  } catch (err) {}
+
+  if (!connectionString) {
+    console.error("No connection string found.");
+    return;
+  }
+
+  const pool = new Pool({ connectionString });
+
+  try {
+    const res = await pool.query(`
+      SELECT 
+        code_fournisseur, 
+        nom_fournisseur, 
+        COUNT(*) as total_rows, 
+        COUNT(DISTINCT codein) as distinct_products
+      FROM ventes_produits
+      GROUP BY code_fournisseur, nom_fournisseur
+      ORDER BY total_rows DESC
+    `);
+    
+    console.table(res.rows);
+  } catch (error) {
+    console.error("Diagnosis failed:", error);
+  } finally {
+    await pool.end();
+  }
+}
+
+main();

scripts/diagnose-db.ts

@@ -0,0 +1,27 @@
+
+import { db } from "@/db";
+import { ventesProduits } from "@/db/schema";
+import { sql } from "drizzle-orm";
+
+async function main() {
+  console.log("--- DB DIAGNOSIS Start ---");
+  try {
+    const results = await db.execute(sql`
+      SELECT 
+        code_fournisseur, 
+        nom_fournisseur, 
+        COUNT(*) as total_rows, 
+        COUNT(DISTINCT codein) as distinct_products
+      FROM ventes_produits
+      GROUP BY code_fournisseur, nom_fournisseur
+      ORDER BY total_rows DESC
+    `);
+    
+    console.table(results.rows);
+  } catch (error) {
+    console.error("Diagnosis failed:", error);
+  }
+  console.log("--- DB DIAGNOSIS End ---");
+}
+
+main();