ISTWCMS-7141: fix adding media to banners

includes/validate_functions.php

@@ -170,13 +170,39 @@ function _uw_cfg_common_banner_validate(
         }
         else {
 
-          // If there is a banner, ensure that it has an image.
+          // If there is a banner, ensure that it has an image or video.
           if (isset($value['subform'])) {
-            if (!isset($value['subform']['field_uw_ban_image']['selection'])) {
-              $form_state->setError(
-                $form['field_uw_banner']['widget'][$key]['subform']['field_uw_ban_image']['widget'],
-                t("You must select an image")
-              );
+            if (isset($value['subform']['field_uw_ban_video'])) {
+              if (!isset($value['subform']['field_uw_ban_video']['selection'])) {
+                if (isset($form['settings'])) {
+                  $form_state->setError(
+                    $form['settings']['block_form']['field_uw_banner_item']['widget'][$key]['subform']['field_uw_ban_video']['widget'],
+                    t("You must select a video")
+                  );
+                }
+                else {
+                  $form_state->setError(
+                    $form['field_uw_banner']['widget'][$key]['subform']['field_uw_ban_video']['widget'],
+                    t("You must select a video")
+                  );
+                }
+              }
+            }
+            if (isset($value['subform']['field_uw_ban_image'])) {
+              if (!isset($value['subform']['field_uw_ban_image']['selection'])) {
+                if (isset($form['settings'])) {
+                  $form_state->setError(
+                    $form['settings']['block_form']['field_uw_banner_item']['widget'][$key]['subform']['field_uw_ban_image']['widget'],
+                    t("You must select an image")
+                  );
+                }
+                else {
+                  $form_state->setError(
+                    $form['field_uw_banner']['widget'][$key]['subform']['field_uw_ban_image']['widget'],
+                    t("You must select an image")
+                  );
+                }
+              }
             }
           }
         }