public function load_choices()
{
if (is_array($this->choices)) {
return true;
}
$result = false;
$services = block_mhaairs_connect::get_services(true);
if (is_array($services) && isset($services['Tools'])) {
foreach ($services['Tools'] as $item) {
$choices[$item['ServiceID']] = ' ' . $item['ServiceName'];
}
asort($choices);
$this->choices = $choices;
$result = true;
}
return $result;
}
/**
* Returns list of services to display in the block content,
* or false if no services are available.
* For each services, returns:
* ServiceID string id
* ServiceIconUrl string url of an image
* ServiceName string name
* ServiceUrl string url
*
* @return array|false Array of arrays.
*/
protected function get_service_data()
{
$result = false;
// Some services must be configured site level.
if (!$this->displayservices) {
return $result;
}
// Initialize the display list with the services enabled in the site level.
$displaylist = explode(',', $this->displayservices);
// Limit to instructor selection in the instance, if any.
// If the instance has not been configured, all services
// enabled in the site level will be displayed.
if (!empty($this->config)) {
foreach ($displaylist as $key => $serviceid) {
if (empty($this->config->{$serviceid})) {
unset($displaylist[$key]);
}
}
}
// Empty display list means that block needs reconfiguration.
if (empty($displaylist)) {
return $result;
}
natcasesort($displaylist);
// Get the data of all available services.
$services = !empty($this->servicedata) ? $this->servicedata : block_mhaairs_connect::get_services();
if ($services === false) {
return $result;
}
// Collate service data for displayed services.
$result = array();
foreach ($displaylist as $serviceid) {
foreach ($services['Tools'] as $vset) {
if ($vset['ServiceID'] == $serviceid) {
$result[] = $vset;
}
}
}
return $result;
}
