Merge branch '6.0/add-custom-field-validation-indicator' into 6.0-trunk

Author: sunnavy

share/html/Elements/EditCustomField

@@ -158,7 +158,9 @@ if ( $error_msg ) {
 </%perl>
     <span id="<% $CFHintId %>" class="form-text invalid-feedback cfinvalidfield d-inline-block"><% $error_msg %></span>
 %  } elsif ($ShowHints and $CustomField->FriendlyPattern) {
-    <span id="<% $CFHintId %>" class="form-text cfhints d-inline-block">
+%   my $pattern              = $CustomField->Pattern;
+%   my $pattern_allows_empty = '' =~ m/$pattern/ ? 1 : 0;
+    <span id="<% $CFHintId %>" class="form-text cfhints d-inline-block<% $pattern_allows_empty ? '' : ' required' %>">
       <% $CustomField->FriendlyPattern %>
     </span>
 %  }

share/static/css/elevator/forms.css

@@ -682,3 +682,13 @@ div.label svg[height="12"] {
 .form-check.has-text-input input.form-check-input {
     margin-top: 0.6rem;
 }
+
+/* display a red asterisk beside labels for required custom fields */
+div.col:has(span.cfhints.required) div.rt-label label::after {
+    color: var(--bs-form-invalid-color);
+    content: ' *';
+    font-size: 1.1em;
+    font-weight: bold;
+    position: relative;
+    top: 0.2em;
+}