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Delete row from mysql database using javascript and php

Posted on 2009-07-03
4
1,197 Views
Last Modified: 2013-12-13
I am new to javascript and php and am trying to build a page with a select list and a delete button.
If the user highlights a value in the select list box which they want to delete and then pushes the delete button, I want the record to be deleted and the current page to be refreshed. Can anyone point me in the right direction?
<?php

//Category Edit Form
 

$username="username";

$password="password";

$database="database";
 

mysql_connect(localhost,$username,$password);

@mysql_select_db($database) or die( "Unable to select database");
 
 

IF ( ISSET($_POST['orgcodepass']) ) {

$varorgcode = $_POST['orgcodepass'];

$sqlupdate = "delete from tmp_org_service_cat_codes where org_service_cat_code = $varorgcode";

}
 

Print  "<script type='text/javascript'>

function alertSelectedIndex(selId)

{

$.post(Catedit.php,'orgcodepass':'selId'); }

</Script>";
 

//$sql =   "delete from tmp_org_service_cat_codes where org_service_cat_code = $orgcode"
 

Echo "<select name=\"orgmaincatscurrent\" id=\"orgmaincatcodescurrent\" multiple=\"multiple\" size=\"5\">";
 

$querytemp="select b.service_category, b.service_category_code from tmp_org_service_cat_codes a inner join service_cat_lookup b

on a.service_cat_code = b.service_category_code ORDER BY b.service_category";

$resulttemp=mysql_query($querytemp);
 

While ( $rowtemp = mysql_fetch_array($resulttemp) ) {

    echo "<option value = \" " . $rowtemp['service_category_code'] . " \" >" . $rowtemp['service_category'] . "</option>";

}
 

Echo "</select>";
 

print "<input type=\"button\" value=\"alert\" onclick=\"alertSelectedIndex('orgmaincatcodescurrent');\" />";
 

echo "</script>";
 

PRINT "<BR /><BR /><BR />";
 

$query_avail="Select a.service_category, a.service_category_code from service_cat_lookup a

Where a.SERVICE_CATEGORY_CODE not in (select distinct b.SERVICE_CAT_CODE

from tmp_org_service_cat_codes b)";
 

$result_avail=mysql_query($query_avail);
 

Echo "<select name=\"orgmaincatsavail\" id=\"orgmaincatcodesavail\" multiple=\"multiple\" size=\"5\">";

While ( $rowavail = mysql_fetch_array($result_avail) ) {

    echo "<option value = \" " . $rowavail['service_category_code'] . " \" >" . $rowavail['service_category'] . "</option>";

}

Echo "</select>";

print "<input type=\"button\" value=\"alert\" onclick=\"alertSelectedIndex('orgmaincatcodesavail');\" />";

echo "</script>";
 

?>

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Question by:geoffcoles
  • 3
4 Comments
 
LVL 5

Accepted Solution

by:
Opalelement earned 420 total points
ID: 24773746
Helpful links:

http://www.mredkj.com/tutorials/tutorial006.html adding/removing items
http://www.javascripttoolbox.com/lib/selectbox/examples.php selecting all items(for when you submit the form, you will want to do this onsubmit)
http://www.geekpedia.com/tutorial138_Get-key-press-event-using-JavaScript.html how to capture delete key

Code snippet is to find out the keycode you need in the last link.
<script language=javascript>

<!--

function f()

{

alert(event.keyCode)

}

window.document.onkeydown= f

//-->

</script>

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0
 
LVL 7

Assisted Solution

by:szewkam
szewkam earned 80 total points
ID: 24773944
well, but if the page has to be refreshed after deleting the row then using JS isn't neccessary ;). You should just use forms with php :)
0
 
LVL 5

Assisted Solution

by:Opalelement
Opalelement earned 420 total points
ID: 24774013
Didn't notice that lol

Just let them click one and when they hit delete it submits the form, then in PHP delete it:)
0
 
LVL 5

Assisted Solution

by:Opalelement
Opalelement earned 420 total points
ID: 24774015
Thought this was the javascript section, I have been in there all day. Sorry for the JS code:)
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