そこで、すべての座席にチェックボックスがあり、ユーザーがこのボックスを選択すると座席が予約されたと見なされる座席予約システムを作成しました。
しかし今、ユーザーがマークされた各座席に名前を付けられるようにしたいと考えています。どうやってやるの？
座席.php
<?php include("login.php"); ?>
<html>
<head>
<title>Tickets</title>
<style>
* {
font-size: 11px;
font-family: arial;
}
</style>
<script>
function reserveSeats() {
var selectedList = getSelectedList('Reserve Seats');
if (selectedList) {
if (confirm('Do you want to reserve
selected seat/s '
+ selectedList + '?')) {
document.forms[0].oldStatusCode.value=0;
document.forms[0].newStatusCode.value=1;
document.forms[0].action='bookseats.php';
document.forms[0].submit();
} else {
clearSelection();
}
}
}
function cancelSeats() {
var selectedList = getSelectedList('Cancel Reservation');
if (selectedList) {
if (confirm('Do you want to cancel reserved seat/s ' + selectedList + '?')) {
document.forms[0].oldStatusCode.value=1;
document.forms[0].newStatusCode.value=0;
document.forms[0].action='bookseats.php';
document.forms[0].submit();
} else {
clearSelection();
}
}
}
function confirmSeats() {
var selectedList = getSelectedList('Confirm Reservation');
if (selectedList) {
if (confirm('Do you want to confirm reserved seat/s ' + selectedList + '?')) {
document.forms[0].oldStatusCode.value=1;
document.forms[0].newStatusCode.value=2;
document.forms[0].action='bookseats.php';
document.forms[0].submit();
} else {
clearSelection();
}
}
}
function getSelectedList(actionSelected) {
// get selected list
var obj = document.forms[0].elements;
var selectedList = '';
for (var i = 0; i < obj.length; i++) {
if (obj[i].checked && obj[i].name == 'seats[]') {
selectedList += obj[i].value + ', ';
}
}
// no selection error
if (selectedList == '') {
alert('Please select a seat before clicking ' + actionSelected);
return false;
} else {
return selectedList;
}
}
function clearSelection() {
var obj = document.forms[0].elements;
for (var i = 0; i < obj.length; i++) {
if (obj[i].checked) {
obj[i].checked = false;
}
}
}
function refreshView() {
clearSelection();
document.forms[0].action='<?php echo $_SERVER['PHP_SELF']; ?>';
document.forms[0].submit();
}
</script>
</head>
<body>
<table>
<tr><td width="100%" align="center">
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<input type="hidden" name="oldStatusCode" value=""/>
<input type="hidden" name="newStatusCode" value=""/>
<table width='100%' border='0'>
<tr><td align='center'>
<input type='button' value='Refresh View' onclick='refreshView();'/>
</td></tr>
</table>
</td></tr>
<tr><td width="100%" align="center">
<table width='100%' border='0'>
<tr><td align='center'>
<input type='button' value='Reserve Seats' onclick='reserveSeats()'/>
<input type='button' value='Confirm Reservation' onclick='confirmSeats()'/>
<input type='button' value='Cancel Reservation' onclick='cancelSeats()'/>
</td></tr>
</table>
</td></tr>
<tr><td width="100%" align="center">
<table width='100%' border='0'>
<tr><td align='center'>
<input type='button' value='Clear Selection' onclick='clearSelection()'/></td>
</tr>
</table>
</td></tr>
<tr><td width="100%" align="center">
<?php
/*
* Created on Mar 17, 2007
* Author: dayg
*/
$linkID = @ mysql_connect("localhost", "tickets", "tickets") or die("Could not connect to MySQL server");
@ mysql_select_db("tickets") or die("Could not select database");
/* Create and execute query. */
$query = "SELECT * from seats order by rowId, columnId desc";
$result = mysql_query($query);
$prevRowId = null;
$seatColor = null;
$tableRow = false;
//echo $result;
echo "<table width='100%' border='0' cellpadding='3' cellspacing='3'>";
while (list($rowId, $columnId, $status, $updatedby) = mysql_fetch_row($result))
{
if ($prevRowId != $rowId) {
if ($rowId != 'A') {
echo "</tr></table></td>";
echo "\n</tr>";
}
$prevRowId = $rowId;
echo "\n<tr><td align='center'><table border='1' cellpadding='8' cellspacing='8'><tr>";
} else {
$tableRow = false;
}
if ($status == 0) {
$seatColor = "lightgreen";
} else if ($status == 1 && $updatedby == 'user1') {
$seatColor = "FFCC99";
} else if ($status == 1 && $updatedby == 'user2') {
$seatColor = "FFCCFF";
} else if ($status == 2 && $updatedby == 'user1') {
$seatColor = "FF9999";
} else if ($status == 2 && $updatedby == 'user2') {
$seatColor = "CC66FF";
} else {
$seatColor = "red";
}
echo "\n<td bgcolor='$seatColor' align='center'>";
echo "$rowId$columnId";
if ($status == 0 || ($status == 1 && $updatedby == $_SERVER['PHP_AUTH_USER'])) {
echo "<input type='checkbox' name='seats[]' value='$rowId$columnId'></checkbox>";
}
echo "</td>";
if (($rowId == 'A' && $columnId == 7)
|| ($rowId == 'B' && $columnId == 9)
|| ($rowId == 'C' && $columnId == 9)
|| ($rowId == 'D' && $columnId == 10)
|| ($rowId == 'E' && $columnId == 8)
|| ($rowId == 'F' && $columnId == 5)
|| ($rowId == 'G' && $columnId == 13)
|| ($rowId == 'H' && $columnId == 14)
|| ($rowId == 'I' && $columnId == 14)
|| ($rowId == 'J' && $columnId == 12)
|| ($rowId == 'K' && $columnId == 14)
|| ($rowId == 'L' && $columnId == 13)
|| ($rowId == 'M' && $columnId == 9)) {
// This fragment is for adding a blank cell which represent the "center aisle"
echo "<td> </td>";
}
}
echo "</tr></table></td>";
echo "</tr>";
echo "</table>";
/* Close connection to database server. */
mysql_close();
?>
</td></tr>
<tr><td> </td></tr>
<tr><td width="100%" align="center">
<table border="1" cellspacing="8" cellpadding="8">
<tr>
<td bgcolor='lightgreen'>Available</td>
<td bgcolor='FFCC99'>Reserved user1</td>
<td bgcolor='FF9999'>Confirmed user1</td>
<td bgcolor='FFCCFF'>Reserved user2</td>
<td bgcolor='CC66FF'>Confirmed user2</td>
</tr>
</table>
</td></tr>
<tr><td> </td></tr>
<tr><td width="100%" align="center">
<a href="seatplan.jpg" target="new">View Layout</a>
</td></tr>
</table>
</form>
</body>
</html>
bookseats.php
<html>
<head>
<title>Book Seats</title>
<style>
* {
font-size: 14px;
font-family: arial;
}
</style>
</head>
<body>
<?php include("login.php"); ?>
<center>
<br/>
<br/>
<br/>
<?php
if (isset($_POST['seats']))
{
$user = $_SERVER['PHP_AUTH_USER'];
$newStatusCode = $_POST['newStatusCode'];
$oldStatusCode = $_POST['oldStatusCode'];
// open database connection
$linkID = @ mysql_connect("localhost", "tickets", "tickets") or die("Could not connect to MySQL server");
@ mysql_select_db("tickets") or die("Could not select database");
// prepare select statement
$selectQuery = "SELECT rowId, columnId from seats where (";
$count = 0;
foreach($_POST['seats'] AS $seat) {
if ($count > 0) {
$selectQuery .= " || ";
}
$selectQuery .= " ( rowId = '" . substr($seat, 0, 1) . "'";
$selectQuery .= " and columnId = " . substr($seat, 1) . " ) ";
$count++;
}
$selectQuery .= " ) and status = $oldStatusCode";
if ($oldStatusCode == 1) {
$selectQuery .= " and updatedby = '$user'";
}
//echo $selectQuery;
// execute select statement
$result = mysql_query($selectQuery);
//echo $result;
$selectedSeats = mysql_num_rows($result);
//echo "<br/>" . $selectedSeats;
if ($selectedSeats != $count) {
$problem = "<h3>There was a problem executing your request. No seat/s were updated.</h3>";
$problem .= "Possible problems are:";
$problem .= "<ul>";
$problem .= "<li>Another process was able to book the same seat while you were still browsing.</li>";
$problem .= "<li>You were trying to Confirm an unreserved Seat.</li>";
$problem .= "<li>You were trying to Cancel an unreserved Seat.</li>";
$problem .= "<li>You were trying to Reserve a reserved Seat.</li>";
$problem .= "<li>There was a problem connecting to the database.</li>";
$problem .= "</ul>";
$problem .= "<a href='seats.php'>View Seat Plan</a>";
die ($problem);
}
// prepare update statement
$newStatusCode = $_POST['newStatusCode'];
$oldStatusCode = $_POST['oldStatusCode'];
$updateQuery = "UPDATE seats set status=$newStatusCode, updatedby='$user' where ( ";
$count = 0;
foreach($_POST['seats'] AS $seat) {
if ($count > 0) {
$updateQuery .= " || ";
}
$updateQuery .= " ( rowId = '" . substr($seat, 0, 1) . "'";
$updateQuery .= " and columnId = " . substr($seat, 1) . " ) ";
$count++;
}
$updateQuery .= " ) and status = $oldStatusCode";
if ($oldStatusCode == 1) {
$updateQuery .= " and updatedby = '$user'";
}
// perform update
$result = mysql_query($updateQuery);
$updatedSeats = mysql_affected_rows();
if ($result && $updatedSeats == $count) {
//$mysql->commit();
echo "<h3>";
echo "You have successfully updated $updatedSeats seat/s: ";
echo "[";
foreach($_POST['seats'] AS $seat) {
$rowId = substr($seat, 0, 1);
$columnId = substr($seat, 1);
echo $rowId . $columnId . ", ";
}
echo "]";
echo "...</h3>";
} else {
//$mysql->rollback();
echo "<h3>There was a problem executing your request. No seat/s were updated.</h3>";
echo "Possible problems are:";
echo "<ul>";
echo "<li>Another process was able to book the same seat while you were still browsing.</li>";
echo "<li>You were trying to Confirm an unreserved Seat.</li>";
echo "<li>You were trying to Cancel an unreserved Seat.</li>";
echo "<li>You were trying to Reserve a reserved Seat.</li>";
echo "<li>There was a problem connecting to the database.</li>";
echo "</ul>";
}
echo "<a href='seats.php'>View Seat Plan</a>";
// Enable the autocommit feature
//$mysqldb->autocommit(TRUE);
// Recuperate the query resources
//$result->free();
mysql_close();
}
?>
</center>
</body>
</html>
編集：
私は次のことを試しました: ユーザーがチェックボックスを送信すると、これが含まれます:
name.php
<?php
//$mysql->commit();
session_start();
$_SESSION['rowId'] = $_POST['rowId'];
$_SESSION['columnId'] = $_POST['columnId'];
echo "<h3>";
echo "Please enter the name for each seat:<br><p> </p>";
echo "";
foreach($_POST['seats'] AS $seat) {
$rowId = substr($seat, 0, 1);
$columnId = substr($seat, 1);
echo $rowId . $columnId . '</br><form method="post" name="input" action="pt2.php" >
<input name="name" type="text"/></br>';
}
?>
<input type="submit" name="Submit" value="insert" />
</form>
pt2.php:
<?php
// Connect to MySQL
mysql_connect("localhost", "root", "root") or die("Connection Failed");
mysql_select_db("tickets")or die("Connection Failed");
$name = $_POST['name'];
session_start();
$rowId = $_SESSION['rowId'];
$columnId = $_SESSION['columnId'];
$result = mysql_query("UPDATE seats SET updatedby='".$name."' WHERE rowId='".$rowId."' AND columnId='".$columnId."'")
or die(mysql_error());
?>
ユーザーが 1 つの座席のみを選択した場合、このコードは魅力的に機能します。しかし、2 つ以上ある場合、$columnId と $rowId は変更されず、最後にチェックされた座席の名前だけが変更されます。