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sakura/libraries/Template.php

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<?php
/*
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* Template engine wrapper
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*/
namespace Sakura;
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use Twig_Environment;
use Twig_Extension_StringLoader;
use Twig_Loader_Filesystem;
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/**
* Class Template
* @package Sakura
*/
class Template
{
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// Engine container, template folder name, options and template variables
private $vars = [];
private $template;
private $templateName;
private $templateOptions;
// Initialise templating engine and data
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public function __construct()
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{
// Set template to default
$this->setTemplate(Config::getConfig('site_style'));
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}
// Set a template name
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public function setTemplate($name)
{
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// Assign config path to a variable so we don't have to type it out twice
$confPath = ROOT . 'templates/' . $name . '/template.ini';
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// Check if the configuration file exists
if (!file_exists($confPath)) {
trigger_error('Template configuration does not exist', E_USER_ERROR);
}
// Parse and store the configuration
$this->templateOptions = parse_ini_file($confPath, true);
// Set variables
$this->templateName = $name;
// Reinitialise
$this->initTemplate();
}
// Initialise main template engine
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public function initTemplate()
{
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// Initialise Twig Filesystem Loader
$twigLoader = new Twig_Loader_Filesystem(ROOT . 'templates/' . $this->templateName);
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// Environment variable
$twigEnv = [];
// Enable caching
if (Config::getConfig('enable_tpl_cache')) {
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$twigEnv['cache'] = ROOT . 'cache/twig';
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}
// And now actually initialise the templating engine
$this->template = new Twig_Environment($twigLoader, $twigEnv);
// Load String template loader
$this->template->addExtension(new Twig_Extension_StringLoader());
}
// Set variables
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public function setVariables($vars)
{
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$this->vars = array_merge($this->vars, $vars);
}
// Render a template
public function render($file)
{
try {
return $this->template->render($file, $this->vars);
} catch (\Exception $e) {
trigger_error($e->getMessage(), E_USER_ERROR);
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}
}
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}