Hi, my function SQL_update below was working properly to update data in the browser but when I created an SQL_delete function below I received this error below. In order to fix the error I had to move the $xajax->processRequest(); statement to the top of the file but then the SQL_update function stopped working. What might be the cause? Where should the
$xajax->processRequest() statement be placed in order for both functions below working properly, or do I need to move my SQL_delete function to another location?
Thanks,
Aaron
"Output has already been sent to the browser at testajaxupdate.php:4. Please make sure the command $xajax->processRequest() is placed before this."
<?php
//connect to database
$hostname =
$username =
$password =
$dbName =
$cnx = mysql_connect($hostname,$username,$password) or DIE("DATABASE FAILED TO RESPOND.");
mysql_select_db($dbName) or DIE("Table unavailable");
require ('../xajax_core/xajax.inc.php');
$xajax = new xajax();
$xajax->processRequest();
//Parse post data
if ($POST[delete]) {
Parse_post($POST);
}
//Parse incoming post vars and call SQL_delete
function Parse_post ($post_it) {
foreach ($post_it as $key => $value) {
if (substr($key,0,2) == "PK") {
$pos = strrpos($key, "_");
$strlength = strlen($key);
$db_id = substr($key,$pos+1);
SQL_delete ($db_id);
}
} //for each
} //end Parse_post
//Delete record from database
function SQL_delete ($save_id) {
//delete record
$db1 = "DELETE from Tracking WHERE PK='$save_id'";
$cur1 = mysql_query($db1) or die(mysql_error());
}
//Parse incoming data and update database and use innerHTML to update client side html
function SQL_Update ($saveid,$the_value) {
//parse right side of string for PK
$pos = strrpos($saveid, "_");
$strlength = strlen($saveid);
$db_id = substr($saveid,$pos+1);
//parse left side of string for database field
$db_field = substr($saveid, 0, $pos);
//update database
$db1 = "Update Tracking Set $db_field='$the_value' where PK='$db_id'";
//instantiate Response object and write client side html
$objResponse = new xajaxResponse();
$objResponse->addAssign($saveid,'innerHTML', $the_value);
return $objResponse;} //end SQL_Update
$xajax->registerFunction("SQL_Update");
/*
Section: processRequest
This will detect an incoming xajax request, process it and exit. If this is
not an xajax request, then it is a request to load the initial contents of the page
(HTML).
Everything prior to this statement will be executed upon each request (whether it
is for the initial page load or a xajax request. Everything after this statement
will be executed only when the page is first loaded.*/
?>
<html>
<head>
<link rel="stylesheet" type="text/css" href="demo1.css" />
<title>Demo</title><?php
// output the xajax javascript. This must be called between the head tags
$xajax->printJavascript();
?>
</head>
<body style="text-align:center;">
<?php
echo '<?xml version="1.0" encoding="UTF-8"?>';
//Select and display all field names in database
$cur = MYSQL_QUERY ("select * from Tracking",$cnx);
if ($cur == "") {echo "No query executed"; exit; }
$number = MYSQL_NUM_ROWS($cur); //number of rows returned
if ($number < 1) { echo "No records found<br>"; exit;} //no max value found, exit
$numfields = mysql_num_fields($cur);
echo "<FORM NAME='ADD_DELETE' METHOD='POST' action='masterlog.php'>";
echo "<TABLE BORDER=1 CELLPADDING=1 CELLSPACING=0>";
echo "<TR class=bg><th>.</th><th>Time</th><th >Date</th><th >UPS</th><th >SMC</th><th >PM</th><th>PPC</th>
<th>BowLast</th><th>BowFirst</th><th>BowPHone</th><th>Spouse</th><th>Email</th><th>City</th><th>County</th><th>State</th><th>Method</th>
<th>Status</th><th>CallBack</th><th>Hot1</th><th>Hot2</th><th>Chal1</th><th>Chal2</th><th>Possible Investor</th><th>Comments</th></TR>";
//display all records
while ($row=mysql_fetch_row($cur)) { //get a row
for ($count = 0; $count < $numfields; $count++) {
$fieldname = MYSQL_FIELD_NAME($cur,$count);
switch ($fieldname) {
case "PK":
$saveid = $row[$count];
echo "<TR>";
echo "<td><input type=checkbox name='$fieldname" . "_" . "$saveid'" . " id='$fieldname" . "_" . "$saveid' /></td>";
break;
case "Comments":
echo "<td width=25><input type=text class=text SIZE=70 name='$fieldname" . "_" . "$saveid'" . " id='$fieldname" . "_" . "$saveid' value='$row[$count]' onchange='xajax_SQL_Update(this.id,this.value);'></td>";
echo "</TR>";
break;
case "BowPhoneNo":
echo "<td width=25><input type=text class=text SIZE=10 name='$fieldname" . "_" . "$saveid'" . " id='$fieldname" . "_" . "$saveid' value='$row[$count]' onchange='xajax_SQL_Update(this.id,this.value);'></td>";
break;
case "Time":
echo "<td width=25><input type=text class=text SIZE=5 name='$fieldname" . "_" . "$saveid'" . " id='$fieldname" . "_" . "$saveid' value='$row[$count]' onchange='xajax_SQL_Update(this.id,this.value);'></td>";
break;
case "City":
echo "<td width=25><input type=text class=text SIZE=10 name='$fieldname" . "_" . "$saveid'" . " id='$fieldname" . "_" . "$saveid' value='$row[$count]' onchange='xajax_SQL_Update(this.id,this.value);'></td>";
break;
default:
echo "<td width=25><input type=text class=text SIZE=5 name='$fieldname" . "_" . "$saveid'" . " id='$fieldname" . "_" . "$saveid' value='$row[$count]' onchange='xajax_SQL_Update(this.id,this.value);'></td>";
} //end switch
} //end for
} //end while
echo "<td><input type='submit' name='delete' value='Delete'></td>";
echo "</TABLE>";
echo "</FORM>";//close database
//mysql_close($cnx);
?>
</body>
</html>
