Rendering view for DOMPDF in phalconPHP - angularjs

Question

I have been try to convert template to PDF with DOMPDF in phalconPHP with angularJS at the front. But I am getting 500 internal server error response from it. DOMPDF is included fine in the controller as I loaded static HTML in load_html() function, it worked fine. Below is the report action from ReportsController. Don't bother with the whole code and just skip to the DOMPDF related code at the end. And $patients is the array that contains all the data which the template is going to need.
ReportController's reportAction:
public function reportAction()
{
$patientsModel = new Patients();
$patients = array();
$patients['data'] = array();
$tmpfilters = $this->queryfilters;
unset($tmpfilters['limit']);
$tmpfilters2 = array();
$tmpfilters2['models'] = "PRM\\Models\\Patients";
if( isset( $tmpfilters['conditions'] ) )
{
$tmpCondition = preg_replace("/[^0-9]/", '', $tmpfilters['conditions']);
$tmpfilters2['conditions'] = "clinic = " . $tmpCondition . " AND status = 24";
}
else
{
$tmpfilters2['conditions'] = "status = 24";
}
$tmpActivePatients = new Patients();
$tmpActivePatients = $tmpActivePatients->find($tmpfilters2);
$patients['activeTotal'] = $tmpActivePatients->count();
$tmpfilters3 = array();
$tmpfilters3['models']['m'] = "PRM\\Models\\Activity";
$tmpfilters3['models']['s'] = "PRM\\Models\\Patients";
if( isset( $tmpfilters['conditions'] ) )
{
$tmpCondition2 = preg_replace("/[^0-9]/", '', $tmpfilters['conditions']);
$tmpfilters3['conditions'] = "m.clinic = " . $tmpCondition2 . " AND " . "s.clinic = " . $tmpCondition2 . " AND m.patient=s.id AND m.duration > 1";
}
else
{
$tmpfilters3['conditions'] = "m.patient = s.id AND m.duration > 1";
}
$tmpPatientDuration = new Query($tmpfilters3);
$tmpPatientDuration = $tmpPatientDuration->getQuery()->execute();
//$builder = $this->modelsManager->createBuilder();
$patients['billableTotal'] = $tmpPatientDuration->count();
//$builder->addFrom('PRM\\Models\\Activity', 'a')->innerJoin('PRM\\Models\\Patients', 'p.id=a.patient', 'p')->where('a.duration > 1 AND p.status = 24');
//$result = $builder->getQuery()->execute();
//$patients['billableTotal'] = $result->count();
foreach ($tmpPatientDuration as $patient) {
array_push($patients['data'], array(
'id' => $patient->id,
'firstname' => $patient->s->firstname,
'lastname' => $patient->s->lastname,
'duration' => $patient->m->duration,
'billingCode' => "CPT 99490"));
/*'icd1' => Ccm::findFirstById($patient->icd1)->icdcode,
//'icd2' => Ccm::findFirstById($patient->icd2)->icdcode,
//'clinic' => Clinics::findFirstById($patient->clinic)->name,
'duration' => Activity::sum([
"column" => "duration",
"conditions" => "patient = '{$patient->id}'",
]),
'response' => Activity::findFirst([
"conditions" => "patient = '{$patient->id}' and activity='Communication' ",
"order" => "id desc"
])->description,
'status' => Status::findFirstById($patient->status)->name));*/
}
$html = $this->view->getRender("reports", "report", $patients);
$dompdf = new domPdf();
$dompdf->load_html($html);
$dompdf->setPaper('A4', 'landscape');
$dompdf->render();
//$this->response->setJsonContent($patients);
$this->response->setContentType('application/pdf');
$this->response->setContent($dompdf->stream());
$this->response->send();
}
Here is the angularJS controller's code:
$http.get('common/reports/report', {responseType: 'arraybuffer'}).success(
function (data) {
var file = new Blob([data], {type: 'application/pdf'});
var fileURL = URL.createObjectURL(file);
window.open(fileURL);
}).error(
function (data) {
angular.forEach(data, function (error) {
$scope.error[error.field] = error.message;
console.log(error.field);
});
$alert({title: 'Error!', content: data.flash.message, placement: 'top-right', type: data.flash.class , duration: 10, container: '.site-alert'});
}
);
error logs:
error log for the above problem