public function render($view, $options = array())
{
if ($this->provider === null) {
nf_error(11);
return;
}
$this->total = -1;
$this->rendered = 0;
$this->provider->begin();
while ($obj = $this->provider->getNext()) {
$filter = $this->filter;
if ($filter !== null && !$filter($obj)) {
continue;
}
$this->total++;
if ($this->perpage != 0) {
if ($this->total < ($this->page - 1) * $this->perpage) {
continue;
}
if ($this->rendered >= $this->perpage) {
break;
}
}
$this->renderOne($view, $obj, $options);
$this->rendered++;
}
$this->total = $this->provider->count();
$this->provider->end();
if ($this->perpage != 0 && $this->renderPaging) {
$this->renderPagingButtons();
}
}
public static function findPrimaryKey()
{
$tablename = static::tablename();
$res = nf_sql_query('SHOW KEYS FROM ' . static::queryTablename($tablename) . ' WHERE Key_name = \'PRIMARY\'');
$row = $res->fetch_assoc();
if ($row !== null) {
return $row['Column_name'];
}
nf_error(9, $tablename);
return false;
}
/**
* Perform a query on the SQL database.
*/
function nf_sql_query($query)
{
global $nf_sql;
$ret = $nf_sql->query($query);
if ($ret === false) {
nf_error(10, nf_t('Error was:') . ' ' . $nf_sql->error . ' - ' . nf_t('Query was:') . ' ' . $query);
}
return $ret;
}
