customcert fixed errors.

Author: Raza403

db/install.xml

@@ -57,7 +57,7 @@
       </KEYS>
       <INDEXES>
         <INDEX NAME="userid-customcertid" UNIQUE="false" FIELDS="userid, customcertid"/>
-        <INDEX NAME="code" UNIQUE="true" FIELDS="code"/>
+        <INDEX NAME="code" UNIQUE="false" FIELDS="code"/>
       </INDEXES>
     </TABLE>
     <TABLE NAME="customcert_pages" COMMENT="Stores each page of a custom cert">

element/qrcode/classes/element.php

@@ -158,7 +158,8 @@ public function render($pdf, $preview, $user) {
             $context = \context::instance_by_id($issue->contextid);
 
             $urlparams = [
-                'certId' => $code,
+                'code' => $code,
+                'qrcode' => 1,
             ];
 
             // We only add the 'contextid' to the link if the site setting for verifying all certificates is off,
@@ -172,7 +173,7 @@ public function render($pdf, $preview, $user) {
                 $urlparams['contextid'] = $issue->contextid;
             }
 
-            $qrcodeurl = new \moodle_url('https://app.pacificmedicaltraining.com/verify', $urlparams);
+            $qrcodeurl = new \moodle_url('/mod/customcert/verify_certificate.php', $urlparams);
             $qrcodeurl = $qrcodeurl->out(false);
         }