From 5e929c858ecb17df3bc9f4d631e48823b74cd422 Mon Sep 17 00:00:00 2001
From: DevSoftTech Server <info.devsofttech@gmail.com>
Date: Sat, 6 Jun 2026 03:43:31 +0530
Subject: [PATCH] Fix H_logo placeholder not being replaced in OPD print

- Add fallback to 'logo.png' when H_logo is not set in database or constants
- Prevents {{H_logo}} placeholder from appearing as literal text in print/PDF
- Resolves 400 Bad Request error when browser tries to load unreplaced placeholder
- Ensures prescription templates always have a valid logo path
---
 app/Controllers/Opd.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/app/Controllers/Opd.php b/app/Controllers/Opd.php
index f852de0..a061b55 100644
--- a/app/Controllers/Opd.php
+++ b/app/Controllers/Opd.php
@@ -4074,6 +4074,11 @@ class Opd extends BaseController
         if ($hLogo === '') {
             $hLogo = defined('H_logo') ? (string) constant('H_logo') : '';
         }
+        
+        // Fallback to default logo if still empty
+        if ($hLogo === '') {
+            $hLogo = 'logo.png';
+        }
 
         $tokens['H_Name'] = $hName;
         $tokens['H_address_1'] = $hAddress1;