}
/*********************************** get a value for editing ************************/
if ($action == 'edit') {
$valueid = required_param('valueid', PARAM_INT);
$data = $DB->get_record($CFG->classification_value_table, array('id' => $valueid));
}
/*********************************** moves up ************************/
if ($action == 'up') {
$id = required_param('valueid', PARAM_INT);
classification_tree_up($id, $type);
classification_tree_updateordering(0, $type);
}
/*********************************** moves down ************************/
if ($action == 'down') {
$id = required_param('valueid', PARAM_INT);
classification_tree_down($id, $type);
classification_tree_updateordering(0, $type);
}
/************************************* Delete safe (only if not used) ******************/
if ($action == 'delete') {
// todo check if there is no instances working with such type.
// if not, bounce to forcedelete
$action = 'forcedelete';
}
/************************************* Delete unsafe ******************/
if ($action == 'forcedelete') {
$id = required_param('valueid', PARAM_INT);
$value = $DB->get_record($CFG->classification_value_table, array('id' => $id));
if ($value) {
// delete related constraints
$DB->delete_records($CFG->classification_constraint_table, array('value1' => $id));
redirect($url . '?view=classifiers');
}
/*********************************** get a type for editing ************************/
if ($action == 'edit') {
$typeid = required_param('typeid', PARAM_INT);
$data = $DB->get_record($CFG->classification_type_table, array('id' => $typeid));
}
/*********************************** moves up ************************/
if ($action == 'up') {
$id = required_param('typeid', PARAM_INT);
classification_tree_up($id);
}
/*********************************** moves down ************************/
if ($action == 'down') {
$id = required_param('typeid', PARAM_INT);
classification_tree_down($id);
}
/************************************* Delete safe (only if not used) ******************/
if ($action == 'delete') {
$id = required_param('typeid', PARAM_INT);
$typeorder = $DB->get_field($CFG->classification_type_table, 'sortorder', array('id' => $id));
if (!$DB->delete_records($CFG->classification_type_table, array('id' => $id))) {
print_error('could not delete classifier');
}
// clear all sub values
if ($valueids = $DB->get_records_menu($CFG->classification_type_table, array('type' => $id), 'id,id')) {
$DB->delete_records($CFG->classification_value_table, array($CFG->classification_value_type_key => $id));
// clear constraint records
$valueidslist = implode("','", array_keys($valueids));
$DB->delete_records_select($CFG->classification_constraint_table, "value1 IN ('{$valueidslist}') ");
$DB->delete_records_select($CFG->classification_constraint_table, "value2 IN ('{$valueidslist}') ");