/**
* Gets information about this tree (including all or selected children) as
* HTML for display to staff or student.
*
* @param bool $not True if there is a NOT in effect
* @param info $info Information about location of condition tree
* @param result $result Result object if this is a student display, else null
* @param bool $root True if this is the root item
* @param bool $hidden Staff display; true if this tree has show=false (from parent)
*/
protected function get_full_information_recursive($not, info $info, result $result = null, $root, $hidden = false)
{
global $PAGE;
// Get list of children - either full list, or those which are shown.
$children = $this->children;
$staff = true;
if ($result) {
$children = $result->filter_nodes($children);
$staff = false;
}
// If no children, return empty string.
if (!$children) {
return '';
}
list($innernot, $andoperator) = $this->get_logic_flags($not);
// If there is only one child, don't bother displaying this tree
// (AND and OR makes no difference). Recurse to the child if a tree,
// otherwise display directly.
if (count($children) === 1) {
$child = reset($children);
if ($this->root && is_null($result)) {
if (is_null($this->showchildren)) {
$childhidden = !$this->show;
} else {
$childhidden = !$this->showchildren[0];
}
} else {
$childhidden = $hidden;
}
if ($child instanceof tree) {
return $child->get_full_information_recursive($innernot, $info, $result, $root, $childhidden);
} else {
if ($root) {
$result = $child->get_standalone_description($staff, $innernot, $info);
} else {
$result = $child->get_description($staff, $innernot, $info);
}
if ($childhidden) {
$result .= ' ' . get_string('hidden_marker', 'availability');
}
return $result;
}
}
// Multiple children, so prepare child messages (recursive).
$items = array();
$index = 0;
foreach ($children as $child) {
// Work out if this node is hidden (staff view only).
$childhidden = $this->root && is_null($result) && !is_null($this->showchildren) && !$this->showchildren[$index];
if ($child instanceof tree) {
$items[] = $child->get_full_information_recursive($innernot, $info, $result, false, $childhidden);
} else {
$childdescription = $child->get_description($staff, $innernot, $info);
if ($childhidden) {
$childdescription .= ' ' . get_string('hidden_marker', 'availability');
}
$items[] = $childdescription;
}
$index++;
}
// If showing output to staff, and root is set to hide completely,
// then include this information in the message.
if ($this->root) {
$treehidden = !$this->show && is_null($result);
} else {
$treehidden = $hidden;
}
// Format output for display.
$renderer = $PAGE->get_renderer('core', 'availability');
return $renderer->multiple_messages($root, $andoperator, $treehidden, $items);
}
