1 files changed, 30 insertions, 0 deletions
diff --git a/modules/field/field.module b/modules/field/field.module
index d02599a01..823b0f24c 100644
--- a/modules/field/field.module
+++ b/modules/field/field.module
@@ -966,3 +966,33 @@ function theme_field($variables) {
 
   return $output;
 }
+
+/**
+ * Helper form element validator: integer.
+ */
+function _element_validate_integer($element, &$form_state) {
+  $value = $element['#value'];
+  if ($value !== '' && (!is_numeric($value) || intval($value) != $value)) {
+    form_error($element, t('%name must be an integer.', array('%name' => $element['#title'])));
+  }
+}
+
+/**
+ * Helper form element validator: integer > 0.
+ */
+function _element_validate_integer_positive($element, &$form_state) {
+  $value = $element['#value'];
+  if ($value !== '' && (!is_numeric($value) || intval($value) != $value || $value <= 0)) {
+    form_error($element, t('%name must be a positive integer.', array('%name' => $element['#title'])));
+  }
+}
+
+/**
+ * Helper form element validator: number.
+ */
+function _element_validate_number($element, &$form_state) {
+  $value = $element['#value'];
+  if ($value != '' && !is_numeric($value)) {
+    form_error($element, t('%name must be a number.', array('%name' => $element['#title'])));
+  }
+}