--- email.module.orig	2008-04-15 07:56:09.000000000 -0400
+++ email.module	2009-01-04 19:11:59.000000000 -0500
@@ -30,12 +30,65 @@ function email_field_settings($op, $fiel
   switch ($op) {
     case 'database columns':
       $columns = array(
-        'email' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => "''"),
+        'email' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => "''", 'sortable' => true),
       );
       return $columns;
+      break;
+    case 'filters':
+      $allowed_values = email_allowed_values($field);
+       if (count($allowed_values)) {
+         return array(
+           'default' => array(
+            'list' => $allowed_values,
+             'list-type' => 'list',
+             'operator' => 'views_handler_operator_or',
+             'value-type' => 'array',
+            ),
+          );
+        }
+      else {
+        return array(
+          'like' => array(
+            'operator' => 'views_handler_operator_like',
+            'handler' => 'views_handler_filter_like',
+          ),
+        );
+      }
+      break;
   }
 }
 
+/**
+ *  Create an array of the allowed values for this field
+ */
+function email_allowed_values($field) {
+  static $allowed_values;
+
+  if ($allowed_values[$field['field_name']]) {
+    return $allowed_values[$field['field_name']];
+  }
+
+  $allowed_values[$field['field_name']] = array();
+  if ($field['allowed_values_php']) {
+    ob_start();
+    $result = eval($field['allowed_values_php']);
+    if (is_array($result)) {
+      $allowed_values[$field['field_name']] = $result;
+    }
+    ob_end_clean();
+  }
+  if (!$allowed_values[$field['field_name']]) {
+
+    $list = explode("\n", $field['allowed_values']);
+    $list = array_map('trim', $list);
+    $list = array_filter($list, 'strlen');
+    foreach ($list as $opt) {
+      list($key, $value) = explode('|', $opt);
+      $allowed_values[$field['field_name']][$key] = $value ? $value : $key;
+    }
+  }
+  return $allowed_values[$field['field_name']];
+}
 
 /**
  * Implementation of hook_field_formatter_info().
@@ -379,4 +432,4 @@ function email_token_values($type, $obje
     return $tokens;
   }
 }
-?>
\ No newline at end of file
+?>