Fix: do not edit player enter code if player name and enter code are same

src/web/server/player/edit_entercode.php

@@ -17,6 +17,15 @@ if(!is_numeric($enterCode)) {
 }
 */
 
+$playerName = get_player_name($maestroID, $playerID);
+if($playerName != null && $playerName != "") {
+	$sameNamePlayerID = get_same_name_player_id($maestroID, $playerName, $enterCode);
+	if($sameNamePlayerID != null && $sameNamePlayerID != 0) {
+		set_error_message("입력하신 입장번호를 다른 학생이 사용하고 있습니다.\n다른 입장번호를 입력해주세요.");
+		send_result_fail();
+		exit;
+	}
+}
 
 editPlayer($maestroID, $playerID, $enterCode);
 
@@ -25,6 +34,44 @@ send_result_success();
 exit;
 
 
+function get_player_name($maestroID, $playerID) {
+	global $db_conn;
+
+	$query = "
+		SELECT Name
+		FROM player
+		WHERE MaestroID = ? AND PlayerID = ?
+	";
+	$stmt = $db_conn->prepare($query);
+	$stmt->bind_param("ii", $maestroID, $playerID);
+	$stmt->execute();
+	$stmt->bind_result($playerName);
+	// while($stmt->fetch())
+	$stmt->fetch();
+	$stmt->close();
+
+	return $playerName;
+}
+
+function get_same_name_player_id($maestroID, $playerName, $enterCode) {
+	global $db_conn;
+
+	$query = "
+		SELECT PlayerID
+		FROM player
+		WHERE MaestroID = ? AND Name = ? AND EnterCode = ?
+	";
+	$stmt = $db_conn->prepare($query);
+	$stmt->bind_param("iss", $maestroID, $playerName, $enterCode);
+	$stmt->execute();
+	$stmt->bind_result($playerID);
+	// while($stmt->fetch())
+	$stmt->fetch();
+	$stmt->close();
+
+	return $playerID;
+}
+
 function editPlayer($maestroID, $playerID, $enterCode) {
 	global $db_conn;