[Da:Sourcerer]

I am a bit unhappy how formatting values is currently being handled by Yii. While this is straightforward in most cases, setting custom formatters in place is less than ideal: If I'd want to format e.g. filesizes and money values, I would have to write a custom MyFormatter class and set it in place instead of CFormatter. This absolutely has to be an all-purpose class, which makes sharing formatters between projects/branches quite hard. Also: Setting CFormatter up for i18n is a bit tedious. So can we please:

• Have a CFormatter class that respects the locale setting?
  
• Have a better way of registering custom single-purpose formatters? My current idea were to have a CFormatter.customFormatters array holding a list of custom formatters. If a CFormatter.formatXyz method isn't present, CFormatter would check that list in order for formatters with such a method.

[Rangel Reale]

I opened an issue on this about a year ago, I did my own CLocaleFormater that uses Yii format functions, and it was very straightforward to write.

[Da:Sourcerer]

Are you referring to ticket #892?

[Rangel Reale]

Da:Sourcerer, on 02 November 2011 - 05:30 AM, said:

Are you referring to ticket #892?

Exactly!

[Da:Sourcerer]

I might be asking for a bit much ... But would it be possible to have some locale-aware wrappers for CNumberFormatter? A formatFloat() would be a nice-to-have as well. I'm afraid the current i18n data won't be sufficient for that, though.

[Rangel Reale]

For referece, here is my CLocaleFormatter, it is very simple:

/**
 * CLocaleFormatter class file.
 *
 * @author Rangel Reale <rangelreale@gmail.com>
 * @link http://www.yiiframework.com/
 * @copyright Copyright &copy; 2008-2010 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

/**
 * CLocateFormatter formats using the current locale.
 *
 * @author Rangel Reale <rangelreale@gmail.com>
 * @version $Id$
 * @package system.utils
 * @since 1.1.1
 */

class CLocaleFormatter extends CFormatter
{
	/**
	 * @var string the format width to be used to format a date using CDateFormatter formatDateTime function. Defaults to 'medium'.
	 */
	public $dateFormatWidth='medium';
	/**
	 * @var string the format width to be used to format a time using CDateFormatter  formatDateTime function. Defaults to 'medium'.
	 */
	public $timeFormatWidth='medium';

	/**
	 * Formats the value as a date.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 * @see dateFormatWidth
	 */
	public function formatDate($value)
	{
		return Yii::app()->dateFormatter->formatDateTime($value, $this->dateFormatWidth, null);
	}

	/**
	 * Formats the value as a time.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 * @see timeFormatWidth
	 */
	public function formatTime($value)
	{
		return Yii::app()->dateFormatter->formatDateTime($value, null, $this->timeFormatWidth);
	}

	/**
	 * Formats the value as a date and time.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 * @see dateFormatWidth
	 * @see timeFormatWidth
	 */
	public function formatDatetime($value)
	{
		return Yii::app()->dateFormatter->formatDateTime($value, $this->dateFormatWidth, $this->timeFormatWidth);
	}
	
	/**
	 * Formats the value as a number using the locale.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 */
	public function formatNumber($value)
	{
		return Yii::app()->locale->numberFormatter->formatDecimal($value, '');
	}
	
	/**
	 * Formats the value as a currency using the locale.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 * @see numberFormat
	 */
	public function formatCurrency($value, $currency='')
	{
		return Yii::app()->locale->numberFormatter->formatCurrency($value, '');
	}

	/**
	 * Formats the value as a percentage using  the locale.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 * @see numberFormat
	 */
	public function formatPercentage($value)
	{
		return Yii::app()->locale->numberFormatter->formatPercentage($value, '');
	}

	/**
	 * Formats the value as a percentage using  the locale.
	 * @param mixed the value to be formatted
	 * @return string the formatted result
	 * @see numberFormat
	 */
	public function formatStatistical($value)
	{
		return Yii::app()->locale->numberFormatter->formatStatistical($value, '');
	}
	
	/**
	 * Parses the value as a date.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see dateFormatWidth
	 */
	public function parseDate($value)
	{
		if ($value!==null && $value!='')
			return CDateTimeParser::parse($value, Yii::app()->locale->getDateFormat($this->dateFormatWidth));
		return null;
	}

	/**
	 * Parses the value as a time.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see timeFormatWidth
	 */
	public function parseTime($value)
	{
		if ($value!==null && $value!='')
			return CDateTimeParser::parse($value, Yii::app()->locale->getTimeFormat($this->timeFormatWidth));
		return null;
	}

	/**
	 * Parses the value as a date and time.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see dateFormatWidth
	 * @see timeFormatWidth
	 */
	public function parseDatetime($value)
	{
		if ($value!==null && $value!='')
		{
			$dtformat=strtr(Yii::app()->locale->dateTimeFormat,array('{0}'=>Yii::app()->locale->getTimeFormat($this->timeFormatWidth),'{1}'=>Yii::app()->locale->getDateFormat($this->dateFormatWidth)));
			return CDateTimeParser::parse($value, $dtformat);
		}
		return null;
	}
	
	/**
	 * Parse the value as a number formatted by the PHP number_format() function.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see numberFormat
	 */
	public function parseNumber($value)
	{
		$nparse=new CNumberParser(Yii::app()->locale);
		return $nparse->parseDecimal($value);
	}
	
	/**
	 * Parses the value as a currency using PHP number_format() function.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see numberFormat
	 */
	public function parseCurrency($value, $currency='')
	{
		$nparse=new CNumberParser(Yii::app()->locale);
		return $nparse->parseCurrency($value, $currency);
	}

	/**
	 * Parses the value as a percentage using PHP number_format() function.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see numberFormat
	 */
	public function parsePercentage($value)
	{
		$nparse=new CNumberParser(Yii::app()->locale);
		return $nparse->parsePercentage($value);
	}

	/**
	 * Parses the value as a percentage using PHP number_format() function.
	 * @param mixed the value to be parsed
	 * @return string the parsed result
	 * @see numberFormat
	 */
	public function parseStatistical($value)
	{
		$nparse=new CNumberParser(Yii::app()->locale);
		return $nparse->parseStatistical($value);
	}
	
}

[Da:Sourcerer]

Hm, convenient. Thanks for sharing. I know, it isn't up to par, but have my formatter for filesizes in return

class FilesizeFormatter extends CFormatter{
	public $suffixes=array(
		'B',
		'KB',
		'MB',
		'GB',
		'TB',
		'PB',
	);
	
	public function formatFilesize($value)
	{
		$e=(int)floor(log($value, 1024));
		if($e > 0 && array_key_exists($e, $this->suffixes))
			return sprintf('%.2f', $value/pow(1024, $e)).$this->suffixes[$e];
		else
			return $this->formatNumber($value).'B';
	}
}