From a00d39ab57f0f46211ef37a60d2922bd79efde4b Mon Sep 17 00:00:00 2001
From: Serhii Akulov <s.akulov@atwix.com>
Date: Fri, 17 Dec 2021 17:34:44 +0200
Subject: [PATCH] 858: error correction in case entered fields is zero

---
 .../generation/generator/UiComponentFormGenerator.java   | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/com/magento/idea/magento2plugin/actions/generation/generator/UiComponentFormGenerator.java b/src/com/magento/idea/magento2plugin/actions/generation/generator/UiComponentFormGenerator.java
index 3918ba998..1e41dc0d2 100644
--- a/src/com/magento/idea/magento2plugin/actions/generation/generator/UiComponentFormGenerator.java
+++ b/src/com/magento/idea/magento2plugin/actions/generation/generator/UiComponentFormGenerator.java
@@ -149,6 +149,14 @@ protected PsiFile createForm(
     protected void fillAttributes(final @NotNull Properties attributes) {
         final PhpClassTypesBuilder phpClassTypesBuilder = new PhpClassTypesBuilder();
 
+        if (data.getFields().isEmpty()) {
+            phpClassTypesBuilder
+                    .appendProperty("PRIMARY_FIELD", "");
+        } else {
+            phpClassTypesBuilder
+                    .appendProperty("PRIMARY_FIELD", data.getFields().get(0).getName());
+        }
+
         phpClassTypesBuilder
                 .appendProperty("NAME", data.getFormName())
                 .appendProperty("LABEL", data.getLabel())
@@ -165,7 +173,6 @@ protected void fillAttributes(final @NotNull Properties attributes) {
                                 data.getDataProviderPath()
                         ).getClassFqn()
                 )
-                .appendProperty("PRIMARY_FIELD", data.getFields().get(0).getName())
                 .mergeProperties(attributes);
     }