CRM_Core_DAO::executeQuery() in Smarty function returns HTML

[s0014]

Hey,

I am using CRM_Core_DAO::executeQuery() in a smarty plugin. Now, whenever there is a database error, the function prints the following code.

Code: [Select]

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">

<head>
  <title></title>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <base href="http://xav.crm:8001/sites/all/modules/civicrm/" />
  <style type="text/css" media="screen">@import url(http://xav.crm:8001/sites/all/modules/civicrm/css/civicrm.css);</style>
  <style type="text/css" media="screen">@import url(http://xav.crm:8001/sites/all/modules/civicrm/css/extras.css);</style>
</head>
<body>
<div id="crm-container" class="crm-container" lang="en" xml:lang="en">
<div class="messages status no-popup">  <div class="icon red-icon alert-icon"></div>
 <span class="status-fatal">Sorry but we are not able to provide this at the moment.</span>
    <div class="crm-section crm-error-message"></div>
            <hr style="solid 1px" />
        <div class="crm-section crm-error-message">DB Error: no such field</div>
            <p><a href="http://xav.crm:8001/" title="Main Menu">Return to home page.</a></p>
</div>
</div>
<script language="JavaScript">
function toggle( element ) {
    var className = element.className;
    if ( className  == 'crm-accordion-wrapper collapsed crm-fatal-error-details-block') {
        element.className = 'crm-accordion-wrapper  crm-fatal-error-details-block';
    } else {
        element.className = 'crm-accordion-wrapper collapsed crm-fatal-error-details-block';
    }
}
</script>

</body>
</html>
This causes the whole page to crash. Is there a workaround for this, I have tried $abort=False, and $trapException=False, but it is still not helping.

All I get is the page doesn't get loaded, and

var eventdetails = {crmFunction bla="1" blah="2"} converted to

var eventdetails = !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">..
....

I tried catching the exception as well, but it throws no exception. I have also tried if the result is_a('DB_Error') but this also doesn't seem to help.

[totten]

CRM_Core_DAO (or, more specifically, its parent class -- PEAR's DB_DataObject) is wired to handle errors by printing out an HTML page and exiting. You should be able to temporarily override this and instead use exceptions -- which are easier to catch.

Code: [Select]

<?php
function smarty_something(...) {
  $errorScope = CRM_Core_TemporaryErrorScope::useException();
  try {
    CRM_Core_DAO::executeQuery(...);
  } catch (Exception $e) {
    // do something nice with $e
  }


[s0014]

Thanks a ton Tim, really solved my problem.