add StringLength, multi-byte, check in TRangeValidator

1 files changed, 56 insertions, 3 deletions

diff --git a/framework/Web/UI/WebControls/TRangeValidator.php b/framework/Web/UI/WebControls/TRangeValidator.php
index 9d23eb5e..b54a1684 100644
--- a/framework/Web/UI/WebControls/TRangeValidator.php
+++ b/framework/Web/UI/WebControls/TRangeValidator.php
@@ -34,6 +34,13 @@ Prado::using('System.Web.UI.WebControls.TBaseValidator');
  *   by {@link TSimpleDateFormatter}. If the property is not set,

  *   the GNU date syntax is assumed.

  * - <b>String</b> A string data type.

+ * - <b>StringLength</b> check for string length.

+ * 

+ * The TRangeValidator allows a special DataType "StringLength" that

+ * can be used to verify minimum and maximum string length. The 

+ * {@link setCharset Charset} property can be used to force a particular 

+ * charset for comparison. Otherwise, the application charset is used and is

+ * defaulted as UTF-8.

  *

  * @author Qiang Xue <qiang.xue@gmail.com>

  * @version $Revision: $  $Date: $

@@ -96,13 +103,14 @@ class TRangeValidator extends TBaseValidator
 	}

 

 	/**

-	 * Sets the data type (Integer, Float, Date, String) that the values being

-	 * compared are converted to before the comparison is made.

+	 * Sets the data type (Integer, Float, Date, String, StringLength) that the

+	 * values being compared are converted to before the comparison is made.

 	 * @param string the data type

 	 */

 	public function setDataType($value)

 	{

-		$this->setViewState('DataType',TPropertyValue::ensureEnum($value,'Integer','Float','Date','String'),'String');

+		$this->setViewState('DataType',TPropertyValue::ensureEnum(

+			$value,'Integer','Float','Date','String', 'StringLength'),'String');

 	}

 

 	/**

@@ -123,6 +131,22 @@ class TRangeValidator extends TBaseValidator
 	}

 

 	/**

+	 * @param string charset for string length comparison.

+	 */

+	public function setCharset($value)

+	{

+		$this->setViewState('Charset', $value, '');

+	}

+	

+	/**

+	 * @return string charset for string length comparison.

+	 */

+	public function getCharset()

+	{

+		return $this->getViewState('Charset', '');

+	}

+

+	/**

 	 * This method overrides the parent's implementation.

 	 * The validation succeeds if the input data is within the range.

 	 * The validation always succeeds if the input data is empty.

@@ -142,6 +166,8 @@ class TRangeValidator extends TBaseValidator
 				return $this->isValidFloat($value);

 			case 'Date':

 				return $this->isValidDate($value);

+			case 'StringLength':

+				return $this->isValidStringLength($value);

 			default:

 				return $this->isValidString($value);

 		}

@@ -238,6 +264,33 @@ class TRangeValidator extends TBaseValidator
 			$valid=$valid && (strcmp($value,$maxValue)<=0);

 		return $valid;

 	}

+	

+	/**

+	 * @param string string for comparision

+	 * @return boolean true if min and max string length are satisfied. 

+	 */

+	protected function isValidStringLength($value)

+	{

+		$minValue=$this->getMinValue();

+		$maxValue=$this->getMaxValue();

+

+		$valid=true;

+		$charset = $this->getCharset();

+		if($charset==='')

+		{

+			$app= $this->getApplication()->getGlobalization();

+			$charset = $app ? $app->getCharset() : null;

+			if(!$charset)

+				$charset = 'UTF-8';

+		}

+		

+		$length = iconv_strlen($value, $charset);

+		if($minValue!=='')

+			$valid = $valid && $length >= intval($minValue);

+		if($maxValue!=='')

+			$valid = $valid && $length <= intval($maxValue);

+		return $valid;

+	}

 

 	/**

 	 * Returns an array of javascript validator options.