ok for available equiment output tpl, next add validate form in php file

src/www/admin/sorties/stock_disponible.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Garradin;
+
+use Garradin\Plugin\Materiels\Output;
+use Garradin\Plugin\Materiels\Equipment;
+use Garradin\Utils;
+
+require_once __DIR__ . '/../_inc.php';
+
+$output = new Output;
+$eqmt = new Equipment;
+$eqmts_by_cat = $eqmt->GetAvailableListByCategory();
+
+$csrf_key = 'add_output';
+
+$kinds = $output->listKinds();
+$selected_kind = $kinds[0];
+
+$date = new \DateTime;
+$date->setTimestamp(time());
+$default_date = $date;
+
+$default_comment = "";
+
+$cancel_link = PLUGIN_URL . 'sorties/index.php';
+$legend_part = "en stock disponible";
+$tpl_materiel_name = "stock_disponible";
+
+$tpl->assign(compact(
+  'csrf_key', 'cancel_link', 'legend_part', 'tpl_materiel_name',
+  'kinds', 'selected_kind', 'default_date', 'default_comment',
+  'eqmts_by_cat'));
+
+$tpl->display(PLUGIN_ROOT . '/templates/sorties/ajouter_sortie.tpl');