/**
* Validate the given data
*
* checks for assignments
* validates
* returns changed data only
*
* @param array $data array('schema' => ( 'fieldlabel' => 'value', ...))
* @param string $pageid
* @param string[] $errors validation errors
* @return AccessDataValidator[]|bool savable data or false on validation error
*/
public static function validateDataForPage($data, $pageid, &$errors)
{
$tosave = array();
$valid = true;
$errors = array();
$assignments = new Assignments();
$tables = $assignments->getPageAssignments($pageid);
foreach ($tables as $table) {
$access = AccessTable::byTableName($table, $pageid);
$validation = $access->getValidator($data[$table]);
if (!$validation->validate()) {
$valid = false;
$errors = array_merge($errors, $validation->getErrors());
} else {
if ($validation->hasChanges()) {
$tosave[] = $validation;
}
}
}
if ($valid) {
return $tosave;
}
return false;
}
/**
* Replaces placeholders in the given filter value by the proper value
*
* @param string $filter
* @return string|string[] Result may be an array when a multi column placeholder is used
*/
protected function applyFilterVars($filter)
{
global $ID;
// apply inexpensive filters first
$filter = str_replace(array('$ID$', '$NS$', '$PAGE$', '$USER$', '$TODAY$'), array($ID, getNS($ID), noNS($ID), isset($_SERVER['REMOTE_USER']) ? $_SERVER['REMOTE_USER'] : '', date('Y-m-d')), $filter);
// apply struct column placeholder (we support only one!)
if (preg_match('/^(.*?)(?:\\$STRUCT\\.(.*?)\\$)(.*?)$/', $filter, $match)) {
$key = $match[2];
// we try to resolve the key via current schema aliases first, otherwise take it literally
$column = $this->findColumn($key);
if ($column) {
$label = $column->getLabel();
$table = $column->getTable();
} else {
list($table, $label) = explode('.', $key);
}
// get the data from the current page
if ($table && $label) {
$schemaData = AccessTable::byTableName($table, $ID, 0);
$data = $schemaData->getDataArray();
$value = $data[$label];
if (is_array($value) && !count($value)) {
$value = '';
}
} else {
$value = '';
}
// apply any pre and postfixes, even when multi value
if (is_array($value)) {
$filter = array();
foreach ($value as $item) {
$filter[] = $match[1] . $item . $match[3];
}
} else {
$filter = $match[1] . $value . $match[3];
}
}
return $filter;
}
