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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\base;
use Yii;
use DateTime;
use yii\helpers\HtmlPurifier;
use yii\helpers\Html;
/**
* Formatter provides a set of commonly used data formatting methods.
*
* The formatting methods provided by Formatter are all named in the form of `asXyz()`.
* The behavior of some of them may be configured via the properties of Formatter. For example,
* by configuring [[dateFormat]], one may control how [[asDate()]] formats the value into a date string.
*
* Formatter is configured as an application component in [[\yii\base\Application]] by default.
* You can access that instance via `Yii::$app->formatter`.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class Formatter extends Component
{
/**
* @var string the timezone to use for formatting time and date values.
* This can be any value that may be passed to [date_default_timezone_set()](http://www.php.net/manual/en/function.date-default-timezone-set.php)
* e.g. `UTC`, `Europe/Berlin` or `America/Chicago`.
* Refer to the [php manual](http://www.php.net/manual/en/timezones.php) for available timezones.
* If this property is not set, [[\yii\base\Application::timezone]] will be used.
*/
public $timeZone;
/**
* @var string the default format string to be used to format a date using PHP date() function.
*/
public $dateFormat = 'Y/m/d';
/**
* @var string the default format string to be used to format a time using PHP date() function.
*/
public $timeFormat = 'h:i:s A';
/**
* @var string the default format string to be used to format a date and time using PHP date() function.
*/
public $datetimeFormat = 'Y/m/d h:i:s A';
/**
* @var string the text to be displayed when formatting a null. Defaults to '<span class="not-set">(not set)</span>'.
*/
public $nullDisplay;
/**
* @var array the text to be displayed when formatting a boolean value. The first element corresponds
* to the text display for false, the second element for true. Defaults to `['No', 'Yes']`.
*/
public $booleanFormat;
/**
* @var string the character displayed as the decimal point when formatting a number.
* If not set, "." will be used.
*/
public $decimalSeparator;
/**
* @var string the character displayed as the thousands separator character when formatting a number.
* If not set, "," will be used.
*/
public $thousandSeparator;
/**
* @var array the format used to format size (bytes). Three elements may be specified: "base", "decimals" and "decimalSeparator".
* They correspond to the base at which a kilobyte is calculated (1000 or 1024 bytes per kilobyte, defaults to 1024),
* the number of digits after the decimal point (defaults to 2) and the character displayed as the decimal point.
*/
public $sizeFormat = [
'base' => 1024,
'decimals' => 2,
'decimalSeparator' => null,
];
/**
* Initializes the component.
*/
public function init()
{
if ($this->timeZone === null) {
$this->timeZone = Yii::$app->timeZone;
}
if (empty($this->booleanFormat)) {
$this->booleanFormat = [Yii::t('yii', 'No'), Yii::t('yii', 'Yes')];
}
if ($this->nullDisplay === null) {
$this->nullDisplay = '<span class="not-set">' . Yii::t('yii', '(not set)') . '</span>';
}
}
/**
* Formats the value based on the given format type.
* This method will call one of the "as" methods available in this class to do the formatting.
* For type "xyz", the method "asXyz" will be used. For example, if the format is "html",
* then [[asHtml()]] will be used. Format names are case insensitive.
* @param mixed $value the value to be formatted
* @param string|array $format the format of the value, e.g., "html", "text". To specify additional
* parameters of the formatting method, you may use an array. The first element of the array
* specifies the format name, while the rest of the elements will be used as the parameters to the formatting
* method. For example, a format of `['date', 'Y-m-d']` will cause the invocation of `asDate($value, 'Y-m-d')`.
* @return string the formatting result
* @throws InvalidParamException if the type is not supported by this class.
*/
public function format($value, $format)
{
if (is_array($format)) {
if (!isset($format[0])) {
throw new InvalidParamException('The $format array must contain at least one element.');
}
$f = $format[0];
$format[0] = $value;
$params = $format;
$format = $f;
} else {
$params = [$value];
}
$method = 'as' . $format;
if ($this->hasMethod($method)) {
return call_user_func_array([$this, $method], $params);
} else {
throw new InvalidParamException("Unknown type: $format");
}
}
/**
* Formats the value as is without any formatting.
* This method simply returns back the parameter without any format.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asRaw($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return $value;
}
/**
* Formats the value as an HTML-encoded plain text.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asText($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return Html::encode($value);
}
/**
* Formats the value as an HTML-encoded plain text with newlines converted into breaks.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asNtext($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return nl2br(Html::encode($value));
}
/**
* Formats the value as HTML-encoded text paragraphs.
* Each text paragraph is enclosed within a `<p>` tag.
* One or multiple consecutive empty lines divide two paragraphs.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asParagraphs($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return str_replace('<p></p>', '',
'<p>' . preg_replace('/[\r\n]{2,}/', "</p>\n<p>", Html::encode($value)) . '</p>'
);
}
/**
* Formats the value as HTML text.
* The value will be purified using [[HtmlPurifier]] to avoid XSS attacks.
* Use [[asRaw()]] if you do not want any purification of the value.
* @param mixed $value the value to be formatted
* @param array|null $config the configuration for the HTMLPurifier class.
* @return string the formatted result
*/
public function asHtml($value, $config = null)
{
if ($value === null) {
return $this->nullDisplay;
}
return HtmlPurifier::process($value, $config);
}
/**
* Formats the value as a mailto link.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asEmail($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return Html::mailto(Html::encode($value), $value);
}
/**
* Formats the value as an image tag.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asImage($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return Html::img($value);
}
/**
* Formats the value as a hyperlink.
* @param mixed $value the value to be formatted
* @return string the formatted result
*/
public function asUrl($value)
{
if ($value === null) {
return $this->nullDisplay;
}
$url = $value;
if (strpos($url, 'http://') !== 0 && strpos($url, 'https://') !== 0) {
$url = 'http://' . $url;
}
return Html::a(Html::encode($value), $url);
}
/**
* Formats the value as a boolean.
* @param mixed $value the value to be formatted
* @return string the formatted result
* @see booleanFormat
*/
public function asBoolean($value)
{
if ($value === null) {
return $this->nullDisplay;
}
return $value ? $this->booleanFormat[1] : $this->booleanFormat[0];
}
/**
* Formats the value as a date.
* @param integer|string|DateTime $value the value to be formatted. The following
* types of value are supported:
*
* - an integer representing a UNIX timestamp
* - a string that can be parsed into a UNIX timestamp via `strtotime()`
* - a PHP DateTime object
*
* @param string $format the format used to convert the value into a date string.
* If null, [[dateFormat]] will be used. The format string should be one
* that can be recognized by the PHP `date()` function.
* @return string the formatted result
* @see dateFormat
*/
public function asDate($value, $format = null)
{
if ($value === null) {
return $this->nullDisplay;
}
$value = $this->normalizeDatetimeValue($value);
return $this->formatTimestamp($value, $format === null ? $this->dateFormat : $format);
}
/**
* Formats the value as a time.
* @param integer|string|DateTime $value the value to be formatted. The following
* types of value are supported:
*
* - an integer representing a UNIX timestamp
* - a string that can be parsed into a UNIX timestamp via `strtotime()`
* - a PHP DateTime object
*
* @param string $format the format used to convert the value into a date string.
* If null, [[timeFormat]] will be used. The format string should be one
* that can be recognized by the PHP `date()` function.
* @return string the formatted result
* @see timeFormat
*/
public function asTime($value, $format = null)
{
if ($value === null) {
return $this->nullDisplay;
}
$value = $this->normalizeDatetimeValue($value);
return $this->formatTimestamp($value, $format === null ? $this->timeFormat : $format);
}
/**
* Formats the value as a datetime.
* @param integer|string|DateTime $value the value to be formatted. The following
* types of value are supported:
*
* - an integer representing a UNIX timestamp
* - a string that can be parsed into a UNIX timestamp via `strtotime()`
* - a PHP DateTime object
*
* @param string $format the format used to convert the value into a date string.
* If null, [[datetimeFormat]] will be used. The format string should be one
* that can be recognized by the PHP `date()` function.
* @return string the formatted result
* @see datetimeFormat
*/
public function asDatetime($value, $format = null)
{
if ($value === null) {
return $this->nullDisplay;
}
$value = $this->normalizeDatetimeValue($value);
return $this->formatTimestamp($value, $format === null ? $this->datetimeFormat : $format);
}
/**
* Normalizes the given datetime value as one that can be taken by various date/time formatting methods.
* @param mixed $value the datetime value to be normalized.
* @return integer the normalized datetime value
*/
protected function normalizeDatetimeValue($value)
{
if (is_string($value)) {
return is_numeric($value) || $value === '' ? (int)$value : strtotime($value);
} elseif ($value instanceof DateTime) {
return $value->getTimestamp();
} else {
return (int)$value;
}
}
/**
* @param integer $value normalized datetime value
* @param string $format the format used to convert the value into a date string.
* @return string the formatted result
*/
protected function formatTimestamp($value, $format)
{
$date = new DateTime(null, new \DateTimeZone($this->timeZone));
$date->setTimestamp($value);
return $date->format($format);
}
/**
* Formats the value as an integer.
* @param mixed $value the value to be formatted
* @return string the formatting result.
*/
public function asInteger($value)
{
if ($value === null) {
return $this->nullDisplay;
}
if (is_string($value) && preg_match('/^(-?\d+)/', $value, $matches)) {
return $matches[1];
} else {
$value = (int)$value;
return "$value";
}
}
/**
* Formats the value as a double number.
* Property [[decimalSeparator]] will be used to represent the decimal point.
* @param mixed $value the value to be formatted
* @param integer $decimals the number of digits after the decimal point
* @return string the formatting result.
* @see decimalSeparator
*/
public function asDouble($value, $decimals = 2)
{
if ($value === null) {
return $this->nullDisplay;
}
if ($this->decimalSeparator === null) {
return sprintf("%.{$decimals}f", $value);
} else {
return str_replace('.', $this->decimalSeparator, sprintf("%.{$decimals}f", $value));
}
}
/**
* Formats the value as a number with decimal and thousand separators.
* This method calls the PHP number_format() function to do the formatting.
* @param mixed $value the value to be formatted
* @param integer $decimals the number of digits after the decimal point
* @return string the formatted result
* @see decimalSeparator
* @see thousandSeparator
*/
public function asNumber($value, $decimals = 0)
{
if ($value === null) {
return $this->nullDisplay;
}
$ds = isset($this->decimalSeparator) ? $this->decimalSeparator: '.';
$ts = isset($this->thousandSeparator) ? $this->thousandSeparator: ',';
return number_format($value, $decimals, $ds, $ts);
}
/**
* Formats the value in bytes as a size in human readable form.
* @param integer $value value in bytes to be formatted
* @param boolean $verbose if full names should be used (e.g. bytes, kilobytes, ...).
* Defaults to false meaning that short names will be used (e.g. B, KB, ...).
* @return string the formatted result
* @see sizeFormat
*/
public function asSize($value, $verbose = false)
{
$position = 0;
do {
if ($value < $this->sizeFormat['base']) {
break;
}
$value = $value / $this->sizeFormat['base'];
$position++;
} while ($position < 6);
$value = round($value, $this->sizeFormat['decimals']);
$formattedValue = isset($this->sizeFormat['decimalSeparator']) ? str_replace('.', $this->sizeFormat['decimalSeparator'], $value) : $value;
$params = ['n' => $formattedValue];
switch($position) {
case 0:
return $verbose ? Yii::t('yii', '{n, plural, =1{# byte} other{# bytes}}', $params) : Yii::t('yii', '{n} B', $params);
case 1:
return $verbose ? Yii::t('yii', '{n, plural, =1{# kilobyte} other{# kilobytes}}', $params) : Yii::t('yii', '{n} KB', $params);
case 2:
return $verbose ? Yii::t('yii', '{n, plural, =1{# megabyte} other{# megabytes}}', $params) : Yii::t('yii', '{n} MB', $params);
case 3:
return $verbose ? Yii::t('yii', '{n, plural, =1{# gigabyte} other{# gigabytes}}', $params) : Yii::t('yii', '{n} GB', $params);
case 4:
return $verbose ? Yii::t('yii', '{n, plural, =1{# terabyte} other{# terabytes}}', $params) : Yii::t('yii', '{n} TB', $params);
default:
return $verbose ? Yii::t('yii', '{n, plural, =1{# petabyte} other{# petabytes}}', $params) : Yii::t('yii', '{n} PB', $params);
}
}
}