1 <?php
  2 /**
  3  * WhTimeAgoFormatter class
  4  *
  5  * @author Alex G <gubarev.alex@gmail.com>
  6  * @author Antonio Ramirez <amigo.cobos@gmail.com>
  7  * @copyright Copyright &copy; 2amigos.us 2013-
  8  * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
  9  * @package YiiWheels.widgets.timeago
 10  */
 11 class WhTimeAgoFormatter extends CFormatter
 12 {
 13     /**
 14      * @var string name of locale
 15      */
 16     public $locale;
 17 
 18     /**
 19      * @var boolean allow future prefix in 'timeago' output
 20      */
 21     public $allowFuture = true;
 22 
 23     /**
 24      * @var array holds the locale data
 25      */
 26     private $data;
 27 
 28 
 29     /**
 30      * Component initialization
 31      */
 32     public function init()
 33     {
 34         if (empty($this->locale)) {
 35             $this->locale = Yii::app()->language;
 36         }
 37         $this->setLocale($this->locale);
 38         parent::init();
 39     }
 40 
 41     /**
 42      * Includes file with locale-specific data array. When locale isnt exists used default 'en' locale
 43      * @param string $locale locale name (like 'ru', 'en_short' etc.)
 44      */
 45     private function setLocale($locale)
 46     {
 47         $path = __DIR__ . DIRECTORY_SEPARATOR .
 48             'assets' . DIRECTORY_SEPARATOR .
 49             'php' . DIRECTORY_SEPARATOR .
 50             'locale' . DIRECTORY_SEPARATOR . $locale . '.php';
 51 
 52         if (!file_exists($path)) {
 53             $this->locale = 'en';
 54             $path         = __DIR__ . DIRECTORY_SEPARATOR .
 55                 'assets' . DIRECTORY_SEPARATOR .
 56                 'php' . DIRECTORY_SEPARATOR .
 57                 'locale' . DIRECTORY_SEPARATOR . $this->locale . '.php';
 58         }
 59         $this->data = require_once($path);
 60     }
 61 
 62     /**
 63      * Formats value in timeago formatted string
 64      * @param mixed $value timestamp, DateTime or date-formatted string
 65      * @return string timeago formatted string
 66      */
 67     public function formatTimeago($value)
 68     {
 69         if ($value instanceof DateTime) {
 70             $value = date_timestamp_get($value);
 71 
 72         } else if (!is_numeric($value) && is_string($value)) {
 73             $value = strtotime($value);
 74         }
 75 
 76         return $this->inWords((time() - $value));
 77     }
 78 
 79     /**
 80      * Converts time delta to timeago formatted string
 81      * @param integer $seconds time delta in seconds
 82      * @return string timeago formatted string
 83      */
 84     public function inWords($seconds)
 85     {
 86         $prefix = $this->data['prefixAgo'];
 87         $suffix = $this->data['suffixAgo'];
 88         if ($this->allowFuture && $seconds < 0) {
 89             $prefix = $this->data['prefixFromNow'];
 90             $suffix = $this->data['suffixFromNow'];
 91         }
 92 
 93         $seconds = abs($seconds);
 94 
 95         $minutes = $seconds / 60;
 96         $hours   = $minutes / 60;
 97         $days    = $hours / 24;
 98         $years   = $days / 365;
 99 
100         $separator = $this->data['wordSeparator'] === null ? " " : $this->data['wordSeparator'];
101 
102         $wordsConds = array(
103             $seconds < 45,
104             $seconds < 90,
105             $minutes < 45,
106             $minutes < 90,
107             $hours < 24,
108             $hours < 42,
109             $days < 30,
110             $days < 45,
111             $days < 365,
112             $years < 1.5,
113             true
114         );
115 
116         $wordResults = array(
117             array('seconds', round($seconds)),
118             array('minute', 1),
119             array('minutes', round($minutes)),
120             array('hour', 1),
121             array('hours', round($hours)),
122             array('day', 1),
123             array('days', round($days)),
124             array('month', 1),
125             array('months', round($days / 30)),
126             array('year', 1),
127             array('years', round($years))
128         );
129 
130         for ($i = 0; $i < $count = count($wordsConds); ++$i) {
131             if ($wordsConds[$i]) {
132                 $key    = $wordResults[$i][0];
133                 $number = $wordResults[$i][1];
134                 if (is_array($this->data[$key]) && is_callable($this->data['rules'])) {
135                     $n       = call_user_func($this->data['rules'], $wordResults[$i][1]);
136                     $message = $this->data[$key][$n];
137                 } else {
138                     $message = $this->data[$key];
139                 }
140                 return trim(implode($separator, array($prefix, preg_replace('/%d/i', $number, $message), $suffix)));
141             }
142         }
143     }
144 
145 }

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