1 files changed, 100 insertions, 0 deletions
diff --git a/lib/Zend/Validate/Digits.php b/lib/Zend/Validate/Digits.php
new file mode 100644
index 0000000..c42ec0a
--- /dev/null
+++ b/lib/Zend/Validate/Digits.php
@@ -0,0 +1,100 @@
+<?php
+
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Validate
+ * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Digits.php 8064 2008-02-16 10:58:39Z thomas $
+ */
+
+
+/**
+ * @see Zend_Validate_Abstract
+ */
+require_once 'Zend/Validate/Abstract.php';
+
+
+/**
+ * @category   Zend
+ * @package    Zend_Validate
+ * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Validate_Digits extends Zend_Validate_Abstract
+{
+    /**
+     * Validation failure message key for when the value contains non-digit characters
+     */
+    const NOT_DIGITS = 'notDigits';
+
+    /**
+     * Validation failure message key for when the value is an empty string
+     */
+    const STRING_EMPTY = 'stringEmpty';
+
+    /**
+     * Digits filter used for validation
+     *
+     * @var Zend_Filter_Digits
+     */
+    protected static $_filter = null;
+
+    /**
+     * Validation failure message template definitions
+     *
+     * @var array
+     */
+    protected $_messageTemplates = array(
+        self::NOT_DIGITS   => "'%value%' contains not only digit characters",
+        self::STRING_EMPTY => "'%value%' is an empty string"
+    );
+
+    /**
+     * Defined by Zend_Validate_Interface
+     *
+     * Returns true if and only if $value only contains digit characters
+     *
+     * @param  string $value
+     * @return boolean
+     */
+    public function isValid($value)
+    {
+        $valueString = (string) $value;
+
+        $this->_setValue($valueString);
+
+        if ('' === $valueString) {
+            $this->_error(self::STRING_EMPTY);
+            return false;
+        }
+
+        if (null === self::$_filter) {
+            /**
+             * @see Zend_Filter_Digits
+             */
+            require_once 'Zend/Filter/Digits.php';
+            self::$_filter = new Zend_Filter_Digits();
+        }
+
+        if ($valueString !== self::$_filter->filter($valueString)) {
+            $this->_error(self::NOT_DIGITS);
+            return false;
+        }
+
+        return true;
+    }
+
+}