1532 Do not allow words that are digits

src/main/java/ai/elimu/web/content/word/WordCreateController.java

@@ -113,14 +113,7 @@ public String handleSubmit(
             Model model) {
     	logger.info("handleSubmit");
 
-        Word existingWord = wordDao.readByText(word.getText());
-        if (existingWord != null) {
-            result.rejectValue("text", "NonUnique");
-        }
-
-        if (StringUtils.containsAny(word.getText(), " ")) {
-            result.rejectValue("text", "WordSpace");
-        }
+        validateWord(word, result);
 
         if (result.hasErrors()) {
             model.addAttribute("word", word);
@@ -272,4 +265,20 @@ private void autoSelectLetterSoundCorrespondences(Word word) {
 
         word.setLetterSoundCorrespondences(letterSoundCorrespondences);
     }
+
+    private void validateWord(Word word, BindingResult result) {
+        Word existingWord = wordDao.readByText(word.getText());
+
+        if (existingWord != null) {
+            result.rejectValue("text", "NonUnique");
+        }
+
+        if (StringUtils.containsAny(word.getText(), " ")) {
+            result.rejectValue("text", "WordSpace");
+        }
+
+        if (word.getText().matches(".*[0-9].*")) {
+            result.rejectValue("text", "WordNumbers");
+        }
+    }
 }

src/main/webapp/WEB-INF/i18n/errors_en.properties

@@ -32,3 +32,4 @@ formatHint.Integer=Number (e.g. "5000")
 image.too.small=The image width must be at least 640px
 emoji.unicode.version=Only emojis up to Unicode version 9
 WordSpace=Spaces are not allowed
+WordNumbers=A word cannot consist of numbers