update empty string to null

src/helpers/helpers.ts

@@ -92,7 +92,22 @@ function parseIntString (s: string | string[] | undefined) :number | null {
   return regex.test(s) ? Number(s) : null 
 }
 
+// Функция для преобразования пустых строк в null
+function convertEmptyStringsToNull<T extends Record<string, unknown>>(obj: T): T {
+  const result = { ...obj } as Record<string, unknown>
+  
+  Object.keys(result).forEach(key => {
+    if (result[key] === '') {
+      result[key] = null
+    }
+  })
+  
+  return result as T
+}
+
+
 export {
   isDirty,
-  parseIntString
+  parseIntString,
+  convertEmptyStringsToNull
 }