e6.3.4 - Null value in in_array()

[apmuthu]

Line 16 in app/dropins/system.dropin.php:
if(!in_array('cc', $email->fields())) {
should be:
if(is_null($email->fields()) || !in_array('cc', $email->fields())) {
to avoid errors like:
in_array() expects parameter 2 to be array, null given

Similarly, lines 139 and 677 in app/src/Core/NodeQ/CoreDatabase.php:
$schema = $this->schema();
should be:
$schema = is_null($this->schema()) ? array() : $this->schema();

Precede line 42 in app/src/Core/NodeQ/Helpers/Config.php with:
if (is_null($this->schema())) return array();

Also the following file is missing:
/var/lib/php5/sessions/edutracsis/nodes/etsis/student_email.config.node

[parkerj]

Thanks.

[parkerj]

is_null should not be used and will be replaced.