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cmanley
Smarty Rookie
Joined: 13 Jan 2013
Posts: 5
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 Posted: Wed Oct 16, 2013 6:42 am Post subject: How to get current template from modifier (w dirty solution) |
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I wrote a text translation modifier, that requires the name of the template file in which in was called.
Is there a proper way to access this information via $this or perhaps some global smarty variable?
So far, I could only come up with this dirty solution (made for Smarty v3) that uses a stack trace, so I hope there's some better way:
| Code: |
/**
* Returns the string translated into the current language.
*
* @param string $key
* @return string
*/
function modifier_xlat($key) {
$template = null;
if (1) {
/* For lack of a better solution, in order to find the current template, scan the stack trace for this frame:
[file] => /usr/local/share/php/Smarty-3.1.14/libs/sysplugins/smarty_internal_template.php
[function] => fetch
[class] => Smarty_Internal_TemplateBase
[object] => Smarty_Internal_Template Object
... or this frame (same as $this) ...
[file] => /usr/local/share/php/Smarty-3.1.14/libs/sysplugins/smarty_internal_templatebase.php
[function] => fetch
[class] => Smarty
[object] => Smarty Object
*/
//$trace_options = version_compare(PHP_VERSION, '5.3.6', '>=') ? (DEBUG_BACKTRACE_PROVIDE_OBJECT | DEBUG_BACKTRACE_IGNORE_ARGS) : true;
$trace_options = defined('DEBUG_BACKTRACE_PROVIDE_OBJECT') ? (DEBUG_BACKTRACE_PROVIDE_OBJECT | DEBUG_BACKTRACE_IGNORE_ARGS) : true;
$trace_limit = 0;
$frames = version_compare(PHP_VERSION, '5.4', '>=') ? debug_backtrace($trace_options, $trace_limit) : debug_backtrace($trace_options);
foreach ($frames as $frame) {
if (@$frame['object'] && (@$frame['function'] == 'fetch')) {
if (is_a($frame['object'], 'Smarty_Internal_Template')) { // for template included from another template
$template = $frame['object'];
break;
}
elseif (is_a($frame['object'], 'Smarty_Internal_TemplateBase')) { // for template loaded by Smarty (== this)
if ($frame['object']->template_objects) {
foreach ($frame['object']->template_objects as $template_key => $template) {
break;
}
break;
}
}
}
}
unset($frames, $frame, $trace_options, $trace_limit);
}
if (!$template) {
throw new Exception('Failed to determine template name in which modifier ' . __FUNCTION__ . ' was called');
}
//error_log($template->template_resource);
//error_log($template->source->filepath);
require_once('site/classes/Translator.php');
$t = new Translator($template->source->filepath);
//error_log('translate file="' . $t->getFile() . '"');
return $t->xlat($key);
}
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I have no idea if it works with Smarty v2. |
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U.Tews
Administrator
Joined: 22 Nov 2006
Posts: 5068
Location: Hamburg / Germany
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cmanley
Smarty Rookie
Joined: 13 Jan 2013
Posts: 5
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| Posted: Mon Oct 21, 2013 1:17 pm Post subject: |
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| Thanks, that's a viable alternative. I hope it will become easier in future Smary versions. |
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cmanley
Smarty Rookie
Joined: 13 Jan 2013
Posts: 5
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| Posted: Thu May 28, 2015 9:56 pm Post subject: |
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Just checking... any update on this since 2013?
Another question:
Is there a way to determine from within the modifier method, which object in $this->template_objects is the one belonging to the source file in which the modifier was called?
If so, then I can call ->source->filepath on that object to get the source file name.
That will be a whole lot faster and future proof than performing stack traces. |
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