@@ -392,9 +392,14 @@ function set_annotation($post_req)
  */
 function save_setting($post_req) 
 {
-    chdir('..');
-
-    saveSetting($post_req['k'], $post_req['v']);
+    $status = saveSetting($post_req['k'], $post_req['v']);
+    $raw_answer = array();
+    if (str_starts_with($status, "OK: ")) {
+        $raw_answer["save_setting"] = substr($status, 4);
+    } else {
+        $raw_answer["error"] = $status;
+    }
+    return json_encode($raw_answer);
 }
 
 /**
 
@@ -433,21 +433,23 @@ function getSettingWithDefault($key)
  * 
  * @global string $tbpref Table name prefix
  * 
- * @return string Error or success message
+ * @return string Success message (starts by "OK: "), or error message
+ * 
+ * @since 2.9.0 Success message starts by "OK: "
  */
 function saveSetting($k, $v) 
 {
     global $tbpref;
     $dft = get_setting_data();
     if (!isset($v)) {
-        return ''; 
+        return 'Value is not set!'; 
     }
     if ($v === '') {
-        return '';
+        return 'Value is an empty string!';
     }
     runsql(
-        'DELETE FROM ' . $tbpref . 'settings 
-        WHERE StKey = ' . convert_string_to_sqlsyntax($k), 
+        "DELETE FROM {$tbpref}settings 
+        WHERE StKey = " . convert_string_to_sqlsyntax($k), 
         ''
     );
     if (isset($dft[$k]) && $dft[$k]['num']) {
@@ -460,11 +462,14 @@ function saveSetting($k, $v)
         }
     }
     $dum = runsql(
-        'INSERT INTO ' . $tbpref . 'settings (StKey, StValue) values(' .
+        "INSERT INTO {$tbpref}settings (StKey, StValue) VALUES(" .
         convert_string_to_sqlsyntax($k) . ', ' . 
         convert_string_to_sqlsyntax($v) . ')', 
         ''
     );
+    if (is_numeric($dum)) {
+        return "OK: $dum rows changed";
+    }
     return $dum;
 }
 
 
@@ -1203,7 +1203,12 @@ function keydown_event_do_text_text (e) {
 function do_ajax_save_setting (k, v) {
   $.post(
     'inc/ajax.php', 
-    { action: '', action_type: 'save_setting', k: k, v: v }
+    {
+      action: '',
+      action_type: 'save_setting',
+      k: k,
+      v: v
+    }
   );
 }
Original file line number	Diff line number	Diff line change
`@@ -433,21 +433,23 @@ function getSettingWithDefault($key)`
`433`	`433`	`*`
`434`	`434`	`* @global string $tbpref Table name prefix`
`435`	`435`	`*`
`436`		`- * @return string Error or success message`
	`436`	`+ * @return string Success message (starts by "OK: "), or error message`
	`437`	`+ *`
	`438`	`+ * @since 2.9.0 Success message starts by "OK: "`
`437`	`439`	`*/`
`438`	`440`	`function saveSetting($k, $v)`
`439`	`441`	`{`
`440`	`442`	`global $tbpref;`
`441`	`443`	`$dft = get_setting_data();`
`442`	`444`	`if (!isset($v)) {`
`443`		`- return '';`
	`445`	`+ return 'Value is not set!';`
`444`	`446`	`}`
`445`	`447`	`if ($v === '') {`
`446`		`- return '';`
	`448`	`+ return 'Value is an empty string!';`
`447`	`449`	`}`
`448`	`450`	`runsql(`
`449`		`- 'DELETE FROM ' . $tbpref . 'settings`
`450`		`- WHERE StKey = ' . convert_string_to_sqlsyntax($k),`
	`451`	`+ "DELETE FROM {$tbpref}settings`
	`452`	`+ WHERE StKey = " . convert_string_to_sqlsyntax($k),`
`451`	`453`	`''`
`452`	`454`	`);`
`453`	`455`	`if (isset($dft[$k]) && $dft[$k]['num']) {`
`@@ -460,11 +462,14 @@ function saveSetting($k, $v)`
`460`	`462`	`}`
`461`	`463`	`}`
`462`	`464`	`$dum = runsql(`
`463`		`- 'INSERT INTO ' . $tbpref . 'settings (StKey, StValue) values(' .`
	`465`	`+ "INSERT INTO {$tbpref}settings (StKey, StValue) VALUES(" .`
`464`	`466`	`convert_string_to_sqlsyntax($k) . ', ' .`
`465`	`467`	`convert_string_to_sqlsyntax($v) . ')',`
`466`	`468`	`''`
`467`	`469`	`);`
	`470`	`+ if (is_numeric($dum)) {`
	`471`	`+ return "OK: $dum rows changed";`
	`472`	`+ }`
`468`	`473`	`return $dum;`
`469`	`474`	`}`
`470`	`475`