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Zend/Validate/Date.php

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+<?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: Date.php 8553 2008-03-05 16:39:50Z darby $
+ */
+
+
+/**
+ * @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_Date extends Zend_Validate_Abstract
+{
+    /**
+     * Validation failure message key for when the value does not follow the YYYY-MM-DD format
+     */
+    const NOT_YYYY_MM_DD = 'dateNotYYYY-MM-DD';
+
+    /**
+     * Validation failure message key for when the value does not appear to be a valid date
+     */
+    const INVALID        = 'dateInvalid';
+
+    /**
+     * Validation failure message key for when the value does not fit the given dateformat or locale
+     */
+    const FALSEFORMAT    = 'dateFalseFormat';
+
+    /**
+     * Validation failure message template definitions
+     *
+     * @var array
+     */
+    protected $_messageTemplates = array(
+        self::NOT_YYYY_MM_DD => "'%value%' is not of the format YYYY-MM-DD",
+        self::INVALID        => "'%value%' does not appear to be a valid date",
+        self::FALSEFORMAT    => "'%value%' does not fit given date format"
+    );
+
+    /**
+     * Optional format
+     *
+     * @var string|null
+     */
+    protected $_format;
+
+    /**
+     * Optional locale
+     *
+     * @var string|Zend_Locale|null
+     */
+    protected $_locale;
+
+    /**
+     * Sets validator options
+     *
+     * @param  string             $format OPTIONAL
+     * @param  string|Zend_Locale $locale OPTIONAL
+     * @return void
+     */
+    public function __construct($format = null, $locale = null)
+    {
+        $this->setFormat($format);
+        $this->setLocale($locale);
+    }
+
+    /**
+     * Returns the locale option
+     *
+     * @return string|Zend_Locale|null
+     */
+    public function getLocale()
+    {
+        return $this->_locale;
+    }
+
+    /**
+     * Sets the locale option
+     *
+     * @param  string|Zend_Locale $locale
+     * @return Zend_Validate_Date provides a fluent interface
+     */
+    public function setLocale($locale = null)
+    {
+        if ($locale !== null) {
+            require_once 'Zend/Locale.php';
+            if (!Zend_Locale::isLocale($locale)) {
+                require_once 'Zend/Validate/Exception.php';
+                throw new Zend_Validate_Exception("The locale '$locale' is no known locale");
+            }
+        }
+        $this->_locale = $locale;
+        return $this;
+    }
+
+    /**
+     * Returns the locale option
+     *
+     * @return string|null
+     */
+    public function getFormat()
+    {
+        return $this->_format;
+    }
+
+    /**
+     * Sets the format option
+     *
+     * @param  string $format
+     * @return Zend_Validate_Date provides a fluent interface
+     */
+    public function setFormat($format = null)
+    {
+        $this->_format = $format;
+        return $this;
+    }
+
+    /**
+     * Defined by Zend_Validate_Interface
+     *
+     * Returns true if $value is a valid date of the format YYYY-MM-DD
+     * If optional $format or $locale is set the date format is checked
+     * according to Zend_Date, see Zend_Date::isDate()
+     *
+     * @param  string $value
+     * @return boolean
+     */
+    public function isValid($value)
+    {
+        $valueString = (string) $value;
+
+        $this->_setValue($valueString);
+
+        if (($this->_format !== null) or ($this->_locale !== null)) {
+            require_once 'Zend/Date.php';
+            if (!Zend_Date::isDate($value, $this->_format, $this->_locale)) {
+                $this->_error(self::FALSEFORMAT);
+                return false;
+            }
+        } else {
+            if (!preg_match('/^\d{4}-\d{2}-\d{2}$/', $valueString)) {
+                $this->_error(self::NOT_YYYY_MM_DD);
+                return false;
+            }
+
+            list($year, $month, $day) = sscanf($valueString, '%d-%d-%d');
+
+            if (!checkdate($month, $day, $year)) {
+                $this->_error(self::INVALID);
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+}