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Posted by Jack Jackson on 06/16/05 18:03
hi,
I'm severely frustrated and perhaps you can help with what I have done
wrong. The checkboxes I use to populate an intersection table work to
add the records, and now I am trying to update them. It's almost there
but producing some unexpected results when the form is submitted: the
idea is that it displays the checkboxes as pre-selected if they're
associated with the art_id in the intersection table. They're now
appearing as all unselected. Any help is appreciated.
<?php
$query = '';
$result = 0;
$art_id = $_POST['art_id'];
print_r($_POST);
if (isset($_POST['editrecordMedia'])){
if (!empty($_POST['media_types'])) {
foreach($_POST['media_types'] as $type)
{
$query = "UPDATE media_art SET
media_id='$type',
art_id='$art_id'";
var_dump($query);
mysql_query($query) or die(mysql_error());
}
}
else {echo "mediatypes is empty";}
//Closes if (!empty($media_types))
}//closes if (isset($_POST['editrecordMedia'])
//If editrecord hasn't been set, but selectcartoon has, get the
cartoon's recordset
//This is just to get the title for display purposes
$query = "SELECT art_title
FROM art
WHERE art_id='$art_id'";
//end
$media_query = "SELECT media.media_id,
media.media_name,
media_art.art_id
FROM media
LEFT JOIN media_art
ON media_art.media_id=media.media_id
AND media_art.art_id='$art_id'";
//These $art results are just to get the title for display purposes
$art_result = mysql_query($query);
$art_rows = mysql_fetch_assoc($art_result);
//end
$media_result = mysql_query($media_query);
$checkbox_media = array ();
while ($media_rows = mysql_fetch_assoc($media_result)){
$checkbox_media[] = "<input type='checkbox' name='media_types[]'
value='{$media_rows['media_id']}' ";
if ($media_rows['art_id'] === $art_id) {
$checkbox_media[] .= "checked ";
}
$checkbox_media[] .= "/>{$media_rows['media_name']} ";
}
?>
<table align="center">
<tr><th colspan="4">Main Menu</th></tr>
<tr>
<td><a href="addrecord.php">Add A Record</a></td>
<td><a href="chooserecord.php">Edit A Record</a></td>
<td><a href="deleterecord.php">Delete A Record</a></td>
</tr>
</table>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post"
name="editrecordMedia">
<input type="hidden" name="art_id" value="<?php echo $art_id ;?>">
Choose media related to <strong><?php echo
$art_rows['art_title'];?></strong><br /><br />
Media: <?php echo join($checkbox_media); ?>
<input type="submit" name="editrecordMedia" value="Update">
</form>
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