JoomLa更新查询不起作用

Question

I'm new to the joomla and php. I having problem on my sql query in joomla in which it does not update the table, and it giving me error message. Is there any mistake i had made on my up date query?

Here is my code:

// Get default database object
$db =JFactory::getDBO();

// Get a new JDatabaseQuery object
$query = $db->getQuery(true);

$tmpIds = array();

foreach($courseID as $cId){

$tmpIds[]= $db->quote($cId);
 //sanitize the input

}

$courseID1 = implode(',',$tmpIds);
// Build the query
$query->select($db->quoteName('courseid'));
$query->from($db->quoteName('intake'));
$query->where($db->quoteName('campusid').'='. $db->quote($campusID));

 $query->where($db->quoteName('courseid').'IN('.$courseID1.')');

// Set the query for the DB oject to execute
$db->setQuery($query);
// Get the DB object to load the results as a list of objects
$results = $db->loadObjectList(); 

if($results){

$query = "UPDATE intake SET startdate = $from WHERE courseid = $courseID1 AND campusid = $campusID";
echo"$query";
$db->setQuery( $query );
$db->query();



}
else{ echo 'Error';}

}

I'm getting this error message.

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''TEST2' AND campusid = Campus3' at line 1 SQL=UPDATE intake SET startdate = 05/06/2014 WHERE courseid = 'TEST1','TEST2' AND campusid = Campus3

Where the courseid is an array value that post by other form with a checkbox input.

Answer 1

your variable $courseID1 in the query turns out to

courseid = 'TEST1','TEST2'

while should have been

courseid in( 'TEST1','TEST2' )

Also your dateformat is wrong for mysql. Try

$from=date('Y-m-d', strtotime($from));
$query = "UPDATE intake SET startdate = '$from' WHERE courseid in ( $courseID1 ) 
AND campusid = $campusID";