diff options
| author | xue <> | 2006-04-07 18:44:07 +0000 |
|---|---|---|
| committer | xue <> | 2006-04-07 18:44:07 +0000 |
| commit | 1d94593d09b68786f7035e7b06ec6d8324894d77 (patch) | |
| tree | 8922c1a64f6f2d49875d31667fae542be9a41eea /framework/Util | |
| parent | 095e118cd4469f1b77e920a0238798d23089ae8d (diff) | |
Format string in classes extending TListControl can now evaluate an expression
Diffstat (limited to 'framework/Util')
| -rw-r--r-- | framework/Util/TDataValueFormatter.php | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/framework/Util/TDataValueFormatter.php b/framework/Util/TDataValueFormatter.php new file mode 100644 index 00000000..797a88d1 --- /dev/null +++ b/framework/Util/TDataValueFormatter.php @@ -0,0 +1,67 @@ +<?php
+/**
+ * TDataValueFormatter class file
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ */
+
+/**
+ * TDataValueFormatter class
+ *
+ * TDataValueFormatter is a utility class that formats a data value
+ * according to a format string.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+class TDataValueFormatter
+{
+ /**
+ * Formats the text value according to a format string.
+ * If the format string is empty, the original value is converted into
+ * a string and returned.
+ * If the format string starts with '#', the string is treated as a PHP expression
+ * within which the token '{0}' is translated with the data value to be formated.
+ * Otherwise, the format string and the data value are passed
+ * as the first and second parameters in {@link sprintf}.
+ * @param string format string
+ * @param mixed the data associated with the cell
+ * @param TComponent the context to evaluate the expression
+ * @return string the formatted result
+ */
+ public static function format($formatString,$value,$context=null)
+ {
+ if($formatString==='')
+ return TPropertyValue::ensureString($value);
+ else if($formatString[0]==='#')
+ {
+ $expression=strtr(substr($formatString,1),array('{0}'=>'$value'));
+ if($context instanceof TComponent)
+ return $context->evaluateExpression($expression);
+ else
+ {
+ try
+ {
+ if(eval("\$result=$expression;")===false)
+ throw new Exception('');
+ return $result;
+ }
+ catch(Exception $e)
+ {
+ throw new TInvalidOperationException('datavalueformatter_expression_invalid',$expression,$e->getMessage());
+ }
+ }
+ }
+ else
+ return sprintf($formatString,$value);
+ }
+}
+
+?>
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