if the media_ID field is an autonumber, then there is no need to do anything
with it...mysql will take the null and generate the next id.
bastien
From: "Mike Millner" <mike@xxxxxxxxxxxxx>
To: <php-db@xxxxxxxxxxxxx>
Subject: Question regarding how-to stop the form inputting empty
data at end of the form that is empty due to a carriage return
Date: Tue, 11 Jan 2005 18:52:10 -0700
Hello everyone,
I have this form that we use for keeping track of tapes we send off site
for storage where I work. The form works almost perfectly with the help of
a few people.
We use a scanner to input the tape id's. The scanner automatically puts a
carriage return at the end of each tape so they all go on seperate lines.
Anyway the question is this: After the last tape is scanned I end up with a
line put into the mysql db that looks like this: (from mysql log file)
243 Query INSERT INTO tape_tracking_test
(media_id,retention,out_date,return_date,box_id) values
('','7WK=%s','2005-01-11','2005-3-01','006455C5092800')
If you look closely you'll see the first field is '' Single quotes with
nothing in between.
How can I get PHP to ignore that line that has empty data in the media_id
field? I have checking in place to not allow empty fields but PHP/mysql
think that last carriage return is not empty.
I don't want to tell users they have to backspace at the end of the last
tape (which fixes the problem)
I hope I'm explaining this properly. If not I'm sure you guys will let me
know :)
Here is the script:
Above here is javascript for a calendar
//-->
</script>
</head>
<Body>
<body onLoad="showCalendar('now')">
<?php
if (isset($_POST['submit'])) { // Handle the form.
$message = NULL; // Create an empty new variable.
}
// Check for MediaID.
if (strlen($_POST['MediaID']) > 0) {
$MediaID = TRUE;
} else {
$MediaID = FALSE;
$message .= '<p>You forgot to enter a Media ID!</p>';
}
// Set the page title and include the HTML header.
$page_title = 'submit!';
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<fieldset><legend>Enter the Tape information into the form below:</legend>
<p><b>Retention:</b><br>
<Select name="Retention">
<option value="4WK">4 Weeks</option>
<option value="7WK">7 Weeks</option>
<option value="1YR">1 Year</option>
<option value="2YR">2 Years</option>
</select></p>
<p><b>Out Date:
</b><br> <input type="text" name="OutDate" size="20" maxlength="40"
value="<?php print date("Y-m-d"); ?>" /></p>
<p><b>Return Date:</b>
<script type="text/javascript"
language="JavaScript">doRCCalendar()</script>
<p><b>Box ID:</b><br> <input type="text" name="BoxID" size="20"
maxlength="40" value="<?php if (!empty($_POST['BoxID'])) echo
$_POST['BoxID']; ?>" /></p>
<p><b>Media ID:</b><br>
<textarea name="MediaID" rows="6" cols="24">
<?php if (!empty($_POST['MediaID'])) echo $_POST['MediaID']; ?>
</textarea>
<form name="submit" action="">
<div align="center"><input type="submit" name="date" value="Submit"
/></div>
</form>
</fieldset>
<?
$delimiter = "\n";
$MediaID_ar = explode($delimiter,$_POST['MediaID']);
$len_ar['MediaID'] = count($MediaID_ar);
$len_ar['Retention'] = strlen($_POST['Retention']);
$len_ar['OutDate'] = strlen($_POST['OutDate']);
$len_ar['ReturnDate'] = strlen($_POST['calendarDate']);
$len_ar['BoxID'] = strlen($_POST['BoxID']);
if(($len_ar['MediaID']) && ($len_ar['OutDate']) && ($len_ar['ReturnDate'])
&& ($len_ar['BoxID'])) {
define ('DB_USER', 'mysql');
define ('DB_PASSWORD', 'mysql');
define ('DB_HOST', 'localhost');
define ('DB_NAME', 'tape_track_db');
$dbc = mysql_connect (DB_HOST, DB_USER, DB_PASSWORD) or die
(mysql_error());
mysql_select_db (DB_NAME);
for($i=0; $i < $len_ar['MediaID']; $i++) {
$MediaID_ar[$i] = str_replace(array("\r","\n"),"",$MediaID_ar[$i]);
mysql_query ("INSERT INTO tape_tracking_test
(media_id,retention,out_date,return_date,box_id) values
('".$MediaID_ar[$i]."','". $_POST['Retention'] ."=%s','". $_POST['OutDate']
."','". $_POST['calendarDate'] ."','". $_POST['BoxID'] ."')");
echo mysql_error();
}
mysql_close();
} else {
echo "<font color = Red><p>You have not entered all information for each
box.</p></font>";
}
?>
</form><!-- End of Form -->
</body>
</html>
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