/**
* Renders data grid body.
* @return string
*/
public function renderBody()
{
$container = $this->getWrapper('datagrid container');
// headers
$header = Html::el($container->getName() == 'table' ? 'thead' : NULL);
$header->add($this->generateHeaderRow());
if ($this->dataGrid->hasFilters()) {
$header->add($this->generateFilterRow());
}
// footer
$footer = Html::el($container->getName() == 'table' ? 'tfoot' : NULL);
$footer->add($this->generateFooterRow());
// body
$body = Html::el($container->getName() == 'table' ? 'tbody' : NULL);
$iterator = new SmartCachingIterator($this->dataGrid->getRows());
foreach ($iterator as $data) {
$row = $this->generateContentRow($data);
$row->addClass($iterator->isEven() ? $this->getValue('row.content .even') : NULL);
$body->add($row);
}
if ($container->getName() == 'table') {
$container->add($header);
$container->add($footer);
$container->add($body);
} else {
$container->add($header);
$container->add($body);
$container->add($footer);
}
return $container->render(0);
}
/**
* Removes unnecessary blocks of PHP code.
* @param string
* @return string
*/
private static function optimizePhp($source)
{
$res = $php = '';
$tokens = token_get_all($source);
$iterator = new SmartCachingIterator(token_get_all($source));
foreach ($iterator as $token) {
if (is_array($token)) {
if ($token[0] === T_INLINE_HTML) {
$res .= $token[1];
} elseif ($token[0] === T_CLOSE_TAG) {
$next = $iterator->getNextValue();
if (substr($res, -1) !== '<' && preg_match('#^<\\?php\\s*$#', $php)) {
$php = '';
// removes empty (?php ?), but retains ((?php ?)?php
} elseif (is_array($next) && $next[0] === T_OPEN_TAG) {
// remove ?)(?php
$ch = substr(rtrim($php), -1);
if ($ch !== ';' && $ch !== '{' && $ch !== '}' && $ch !== ':' && $ch !== '/') {
$php .= ';';
}
if (substr($next[1], -1) === "\n") {
$php .= "\n";
}
$iterator->next();
} else {
$res .= preg_replace('#;?(\\s)*$#', '$1', $php) . $token[1];
// remove last semicolon before ?)
$php = '';
}
} else {
$php .= $token[1];
}
} else {
$php .= $token;
}
}
return $res . $php;
}
echo "\n";
echo "first: ";
Debug::dump($iterator->isFirst());
echo "last: ";
Debug::dump($iterator->isLast());
echo "counter: ";
Debug::dump($iterator->getCounter());
}
$iterator->rewind();
echo "rewinding...\n";
echo "first: ";
Debug::dump($iterator->isFirst());
echo "last: ";
Debug::dump($iterator->isLast());
echo "counter: ";
Debug::dump($iterator->getCounter());
echo "empty: ";
Debug::dump($iterator->isEmpty());
echo "\n<h2>Zero item in array</h2>\n";
$arr = array();
$iterator = new SmartCachingIterator($arr);
$iterator->next();
$iterator->next();
echo "first: ";
Debug::dump($iterator->isFirst());
echo "last: ";
Debug::dump($iterator->isLast());
echo "counter: ";
Debug::dump($iterator->getCounter());
echo "empty: ";
Debug::dump($iterator->isEmpty());