feat: implement dispensing module with transaction-safe stock management, FEFO allocation, and H1 compliance reporting

migrate_multitenant.js

@@ -0,0 +1,35 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const pool = new Pool({ connectionString: process.env.DATABASE_URL });
+
+async function migrate() {
+  try {
+    const DEFAULT_TENANT = 'act_admin'; // Fallback tenant for existing data
+
+    await pool.query(`
+      ALTER TABLE prescriptions ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50);
+      UPDATE prescriptions SET tenant_id = '${DEFAULT_TENANT}' WHERE tenant_id IS NULL;
+      
+      ALTER TABLE batches ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50);
+      UPDATE batches SET tenant_id = '${DEFAULT_TENANT}' WHERE tenant_id IS NULL;
+      
+      ALTER TABLE patients ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50);
+      UPDATE patients SET tenant_id = '${DEFAULT_TENANT}' WHERE tenant_id IS NULL;
+      
+      ALTER TABLE suppliers ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50);
+      UPDATE suppliers SET tenant_id = '${DEFAULT_TENANT}' WHERE tenant_id IS NULL;
+      
+      ALTER TABLE order_drafts ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50);
+      UPDATE order_drafts SET tenant_id = '${DEFAULT_TENANT}' WHERE tenant_id IS NULL;
+    `);
+    
+    console.log('Multi-tenant migration completed successfully');
+  } catch (err) {
+    console.error('Error during migration:', err);
+  } finally {
+    pool.end();
+  }
+}
+
+migrate();