/**
* render template
*
* @param bool $display true: display, false: fetch
* @param bool $isSubTemplate
* @param bool $runOutputFilter
* @param null|\Smarty_Internal_Context $_contextObjIn optional buffer object
*
* @return string
* @throws \SmartyException
*/
public function render($display = false, $isSubTemplate = false, $runOutputFilter = true, Smarty_Internal_Context $_contextObjIn = null)
{
$level = ob_get_level();
try {
if (!isset($this->source)) {
$this->source = Smarty_Template_Source::load($this);
}
// checks if template exists
if (!$this->source->exists) {
if ($this->parent instanceof Smarty_Internal_Template) {
$parent_resource = " in '{$this->parent->template_resource}'";
} else {
$parent_resource = '';
}
throw new SmartyException("Unable to load template {$this->source->type} '{$this->source->name}'{$parent_resource}");
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_template($this);
}
$this->context = $_contextObjIn === null ? new Smarty_Internal_Context() : $_contextObjIn;
// merge all variable scopes into template
if (!$isSubTemplate) {
$savedErrorLevel = isset($this->smarty->error_reporting) ? error_reporting($this->smarty->error_reporting) : null;
// save local variables
$savedTplVars = $this->tpl_vars;
$savedConfigVars = $this->config_vars;
$ptr_array = array($this);
$ptr = $this;
while (isset($ptr->parent)) {
$ptr_array[] = $ptr = $ptr->parent;
}
$ptr_array = array_reverse($ptr_array);
$parent_ptr = reset($ptr_array);
$tpl_vars = $parent_ptr->tpl_vars;
$config_vars = $parent_ptr->config_vars;
while ($parent_ptr = next($ptr_array)) {
if (!empty($parent_ptr->tpl_vars)) {
$tpl_vars = array_merge($tpl_vars, $parent_ptr->tpl_vars);
}
if (!empty($parent_ptr->config_vars)) {
$config_vars = array_merge($config_vars, $parent_ptr->config_vars);
}
}
if (!empty(Smarty::$global_tpl_vars)) {
$tpl_vars = array_merge(Smarty::$global_tpl_vars, $tpl_vars);
}
$this->tpl_vars = $tpl_vars;
$this->config_vars = $config_vars;
} else {
$savedTplVars = null;
$savedConfigVars = null;
$savedErrorLevel = null;
}
// dummy local smarty variable
if (!isset($this->tpl_vars['smarty'])) {
$this->tpl_vars['smarty'] = new Smarty_Variable();
}
// disable caching for evaluated code
if ($this->source->recompiled) {
$this->caching = false;
}
$_caching = $this->caching == Smarty::CACHING_LIFETIME_CURRENT || $this->caching == Smarty::CACHING_LIFETIME_SAVED;
// read from cache or render
if ($_caching && !isset($this->cached)) {
$this->cached = Smarty_Template_Cached::load($this);
}
if (!$_caching || !$this->cached->valid) {
// render template (not loaded and not in cache)
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_render($this, null);
}
if (isset($this->cached)) {
$_savedContext = $this->context;
$this->context = new Smarty_Internal_Context(true);
}
if (!$this->source->uncompiled) {
// render compiled code
if (!isset($this->compiled)) {
$this->compiled = Smarty_Template_Compiled::load($this);
}
$this->compiled->render($this);
} else {
$this->source->renderUncompiled($this);
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_render($this, null);
}
// write to cache when necessary
if ($_caching && !$this->source->recompiled) {
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_cache($this);
}
// write cache file content
if ($runOutputFilter && !$this->context->hasNocacheCode && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
$this->cached->writeCachedContent($this, $this->context, Smarty_Internal_Filter_Handler::runFilter('output', $this->context->getContent(), $this));
} else {
$this->cached->writeCachedContent($this, $this->context);
}
$this->context = $_savedContext;
$compile_check = $this->smarty->compile_check;
$this->smarty->compile_check = false;
if (!$this->cached->processed) {
$this->cached->process($this);
}
$this->smarty->compile_check = $compile_check;
$this->cached->compiledTplObj->getRenderedTemplateCode($this);
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_cache($this);
}
}
} else {
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_cache($this);
}
$this->cached->render($this);
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_cache($this);
}
}
if ($runOutputFilter && (!$this->caching || $this->context->hasNocacheCode || $this->source->recompiled) && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
$this->context->flushBuffer();
$this->context->content = Smarty_Internal_Filter_Handler::runFilter('output', $this->context->content, $this);
}
// display or fetch
if ($display) {
$this->context->endBuffer();
if ($this->caching && $this->smarty->cache_modified_check) {
$this->cached->cacheModifiedCheck($this, $this->context->content);
} else {
echo $this->context->content;
}
$this->context = null;
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_template($this);
}
if ($display) {
// debug output
if ($this->smarty->debugging) {
Smarty_Internal_Debug::display_debug($this, true);
}
}
if (!$isSubTemplate) {
// restore local variables
$this->tpl_vars = $savedTplVars;
$this->config_vars = $savedConfigVars;
if (isset($savedErrorLevel)) {
error_reporting($savedErrorLevel);
}
}
} catch (Exception $e) {
while (ob_get_level() > $level) {
ob_end_clean();
}
throw $e;
}
if (!$display && $_contextObjIn === null) {
// return fetched content
$this->context->endBuffer();
$output = $this->context->content;
$this->context = null;
return $output;
}
$this->context = null;
return '';
}
/**
* Writes the content to cache resource
*
* @param Smarty_Internal_Template $_template
* @param \Smarty_Internal_Context $context
* @param string $content
*
* @return bool
*/
public function writeCachedContent(Smarty_Internal_Template $_template, Smarty_Internal_Context $context = null, $content = '')
{
if ($_template->source->recompiled || !($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED)) {
// don't write cache file
return false;
}
$properties = array('isCache' => true, 'cacheLifetime' => $_template->cache_lifetime);
if ($context) {
$properties['resourceInfo'] = $context->resourceInfo;
if ($context->hasNocacheCode) {
$properties['hasNocacheCode'] = true;
}
foreach ($context->templateFunctions as $name => $data) {
unset($data['obj']);
$properties['templateFunctions'][$name] = $data;
}
if (!empty($context->nocachePlugins)) {
$properties['plugins'] = $context->nocachePlugins;
}
$content = !empty($content) ? $content : $context->getContent();
}
return $this->write($_template, Smarty_Internal_Extension_CodeFrame::create($_template, $properties, $content, '', true));
}
