Plugin: BuyCourses: Fix notices

plugin/buycourses/src/buy_course_plugin.class.php

@@ -3084,7 +3084,7 @@ class BuyCoursesPlugin extends Plugin
     }
 
     /**
-     * @param array $coupon Array with at least 'discount_type' and 'discount_amount' elements
+     * @param array|null $coupon Array with at least 'discount_type' and 'discount_amount' elements
      */
     public function setPriceSettings(array &$product, int $productType, array $coupon = null): bool
     {

plugin/buycourses/src/configure_course.php

@@ -40,6 +40,7 @@ if (empty($currency)) {
     Display::addFlash(
         Display::return_message($plugin->get_lang('CurrencyIsNotConfigured'), 'error')
     );
+    $currency = null;
 }
 
 $currencyIso = null;
@@ -69,7 +70,8 @@ if ($editingCourse) {
         $defaultBeneficiaries[] = $teacher->getId();
     }
 
-    $currentBeneficiaries = $plugin->getItemBeneficiaries($courseItem['item_id']);
+    if (!empty($courseItem['item_id'])) {
+        $currentBeneficiaries = $plugin->getItemBeneficiaries($courseItem['course_id']);
         if (!empty($currentBeneficiaries)) {
             $defaultBeneficiaries = array_column($currentBeneficiaries, 'user_id');
             if ($commissionsEnable === 'true') {
@@ -93,6 +95,19 @@ if ($editingCourse) {
             'beneficiaries' => $defaultBeneficiaries,
             $commissionsEnable == 'true' ? 'commissions' : '' => $commissionsEnable == 'true' ? $commissions : '',
         ];
+    } else {
+        $formDefaults = [
+            'product_type' => get_lang('Course'),
+            'id' => $courseItem['course_id'],
+            'type' => BuyCoursesPlugin::PRODUCT_TYPE_COURSE,
+            'name' => $courseItem['course_title'],
+            'visible' => false,
+            'price' => 0,
+            'tax_perc' => 0,
+            'beneficiaries' => [],
+            $commissionsEnable == 'true' ? 'commissions' : '' => $commissionsEnable == 'true' ? '' : '',
+        ];
+    }
 } elseif ($editingSession) {
     if (!$includeSession) {
         api_not_allowed(true);

plugin/buycourses/src/configure_subscription.php

@@ -190,7 +190,7 @@ $frequencyForm->addHidden('tax_perc', $taxtPerc);
 $frequencyForm->addHidden('currency_id', $currency['id']);
 $frequencyForm->addButtonCreate('Add');
 
-for ($i = 0; $i <= count($subscriptions); $i++) {
+for ($i = 0; $i < count($subscriptions); $i++) {
     if ($subscriptions[$i]['duration'] > 0) {
         $subscriptions[$i]['durationName'] = $frequenciesOptions[$subscriptions[$i]['duration']];
     }