public function after(PHPTAL_Php_CodeWriter $codewriter)
{
$codewriter->doEval('file_put_contents(' . $codewriter->str($codewriter->getCacheFilesBaseName()) . '.md5(' . $this->cache_tag . '), ob_get_flush())');
$codewriter->doElse();
$codewriter->doEval('readfile(' . $codewriter->str($codewriter->getCacheFilesBaseName()) . '.md5(' . $this->cache_tag . '))');
$codewriter->doEnd('if');
}
public function before(PHPTAL_Php_CodeWriter $codewriter)
{
// number or variable name followed by time unit
// optional per expression
if (!preg_match('/^\\s*([0-9]+\\s*|[a-zA-Z][\\/a-zA-Z0-9_]*\\s+)([dhms])\\s*(?:\\;?\\s*per\\s+([^;]+)|)\\s*$/', $this->expression, $matches)) {
throw new PHPTAL_ParserException("Cache attribute syntax error: " . $this->expression, $this->phpelement->getSourceFile(), $this->phpelement->getSourceLine());
}
$cache_len = $matches[1];
if (!is_numeric($cache_len)) {
$cache_len = $codewriter->evaluateExpression($cache_len);
if (is_array($cache_len)) {
throw new PHPTAL_ParserException("Chained expressions in cache length are not supported", $this->phpelement->getSourceFile(), $this->phpelement->getSourceLine());
}
}
switch ($matches[2]) {
case 'd':
$cache_len .= '*24';
/* no break */
/* no break */
case 'h':
$cache_len .= '*60';
/* no break */
/* no break */
case 'm':
$cache_len .= '*60';
/* no break */
}
$cache_tag = '"' . addslashes($this->phpelement->getQualifiedName() . ':' . $this->phpelement->getSourceLine()) . '"';
$cache_per_expression = isset($matches[3]) ? trim($matches[3]) : null;
if ($cache_per_expression == 'url') {
$cache_tag .= '.$_SERVER["REQUEST_URI"]';
} elseif ($cache_per_expression == 'nothing') {
/* do nothing */
} elseif ($cache_per_expression) {
$code = $codewriter->evaluateExpression($cache_per_expression);
if (is_array($code)) {
throw new PHPTAL_ParserException("Chained expressions in per-cache directive are not supported", $this->phpelement->getSourceFile(), $this->phpelement->getSourceLine());
}
$cache_tag = '(' . $code . ')."@".' . $cache_tag;
}
$this->cache_filename_var = $codewriter->createTempVariable();
$codewriter->doSetVar($this->cache_filename_var, $codewriter->str($codewriter->getCacheFilesBaseName()) . '.md5(' . $cache_tag . ')');
$cond = '!file_exists(' . $this->cache_filename_var . ') || time() - ' . $cache_len . ' >= filemtime(' . $this->cache_filename_var . ')';
$codewriter->doIf($cond);
$codewriter->doEval('ob_start()');
}
