Update ringbacks.php

Eliminate duplicates ringbacks class for the music list.

resources/classes/ringbacks.php

@@ -110,17 +110,18 @@ if (!class_exists('ringbacks')) {
 
 			//music list
 				if (count($this->music_list) > 0) {
-					$select .= "	<optgroup label='".$text['label-music_on_hold']."'>";
+					$select .= "	<optgroup label='".$text['label-music_on_hold']."'>\n";
+					$previous_name = '';
 					foreach($this->music_list as $row) {
-						$name = '';
-						if (strlen($row['domain_uuid']) > 0) {
-							$name = $row['domain_name'].'/';	
+						if ($previous_name != $row['music_on_hold_name']) {
+							$name = '';
+							if (strlen($row['domain_uuid']) > 0) {
+								$name = $row['domain_name'].'/';	
+							}
+							$name .= $row['music_on_hold_name'];
+							$select .= "		<option value='local_stream://".$name."' ".(($selected == "local_stream://".$name) ? 'selected="selected"' : null).">".$row['music_on_hold_name']."</option>\n";
 						}
-						$name .= $row['music_on_hold_name'];
-						if (strlen($row['music_on_hold_rate']) > 0) {
-							$name = $name.'/'.$row['music_on_hold_rate'];
-						}
-						$select .= "		<option value='local_stream://".$name."' ".(($selected == "local_stream://".$name) ? 'selected="selected"' : null).">".$row['music_on_hold_name']."</option>\n";
+						$previous_name = $row['music_on_hold_name'];
 					}
 					$select .= "	</optgroup>\n";
 				}