private function stats_selection()
{
$stats = [];
$utilisateur = new bobs_utilisateur($this->db, 4080);
$id_selection = $utilisateur->selection_creer("compte_colonies_hiro");
$selection = new bobs_selection($this->db, $id_selection);
$extraction = new bobs_extractions($this->db);
$extraction->ajouter_condition(new bobs_ext_c_tag(CLICNAT_HIRONDELLE_TAG));
$extraction->dans_selection($id_selection);
$stats["nb_observateurs"] = count($selection->get_observateurs());
$stats["nb_citations"] = $selection->n();
$stats["derniere_date"] = new DateTime('1900-00-00');
foreach ($selection->get_citations() as $citation) {
$date_obs = new DateTime($citation->date_modif);
if ($date_obs > $stats["derniere_date"]) {
$stats["derniere_date"] = $date_obs;
}
}
$selection->drop();
return $stats;
}
