useful methods to add to twigview/twigfunctions.php

twigfunctions.php

<?php
//Source: http://forums.laravel.com/viewtopic.php?id=1272&p=2
// useful methods to add to twigview/twigfunctions.php

// return if the current IP matches
function twig_fn_is_ip($ip){
	if($ip === $_SERVER['REMOTE_ADDR']){
		return true;
	}
	return false;
}

// convert a timestamp to a string 'x time ago' 
function twig_fn_time_ago($timestamp, $precision = 2) {
  $time = time() - strtotime($timestamp);
  $a = array('decade' => 315576000, 'year' => 31557600, 'month' => 2629800, 'week' => 604800, 'day' => 86400, 'hour' => 3600, 'min' => 60, 'sec' => 1);
  $i = 0;
    foreach($a as $k => $v) {
      $$k = floor($time/$v);
      if ($$k) $i++;
      $time = $i >= $precision ? 0 : $time - $$k * $v;
      $s = $$k > 1 ? 's' : '';
      $$k = $$k ? $$k.' '.$k.$s.' ' : '';
      @$result .= $$k;
    }
  return $result ? $result.'ago' : '1 sec to go';
} 

// return the csrf token
function twig_fn_csrf_token(){
	return Session::token();
}

// return an asset as an array of urls
/* {% set assets = {
	boostrapper_js: asset_source('boostrapper', 'style'),
	bootstrapper_css: asset_source('bootstrapper', 'css')
} %}

{% for asset in assets.bootstrapper_css %}
     <link rel="stylesheet" type="text/css" href="{{ asset }}">
{% endfor %}


{% for asset in assets.bootstrapper_js %}
     <script type="text/javascript" src="{{ asset }}"></script>
{% endfor %}
*/


function twig_fn_asset_source($container, $type){

	$assets = Asset::container($container)->assets;
	$sources = array();

	foreach($assets as $asset=>$val){

		foreach($assets[$asset] as $asset_source => $asset_val){

			$src = $asset_val['source'];

			$srctype = pathinfo($src, PATHINFO_EXTENSION);
			$assetpath = Asset::container($container)->path($src);

			if(($srctype == 'css') && ($type == 'style')){
				$sources[] = URL::to($assetpath);
			}

			if(($srctype == 'js') && ($type == 'script')){
				$sources[] = URL::to($assetpath);
			}
		}
	}

	if(count($sources) > 0){
		return $sources;
	}

	return null;


}

// run the auth check inside templates
// {% if auth_check() %}
function twig_fn_auth_check(){
	if(Auth::check()){
		return Auth::user()->name; // name not username (consider username private)
	}
	else{
		Auth::logout();
		return false;
	}
}

// changed to allow passing of arrays, which matches Laravel's method
// {{ url_to('controller@method', [param, param2]) }}
function twig_fn_url_to($route, $params = '')
{
	
	if(is_array($params)){
		return URL::to_action($route, $params, false);
	}
	
	else if (strlen(trim($params)) == 0)
	{
		return URL::to_action($route, array(), false);
	}
	else
	{
        parse_str($params, $repl);
		return URL::to_action($route, $repl, false);
	} 
}

// allows wordwrap to work through autoescape
function twig_fn_wordwrap($str, $width=40, $cut=true){
	return wordwrap($str, $width, chr(13), $cut); // only chr(13) seems to actually work through the escape filter...
	
}

// again, the regular nl2br filter ends up with the break tags escaped. 
function twig_fn_nl2br($str){
	$str = str_replace("\r",chr(13),$str);
	$str = str_replace("\n", chr(13), $str);
	return $str;	
}