/**
* Will expand the parameters configuration to individual values. This follows a certain syntax of the value of each parameter.
* Syntax of values:
* - Basically: If the value is wrapped in [...] it will be expanded according to the following syntax, otherwise the value is taken literally
* - Configuration is splitted by "|" and the parts are processed individually and finally added together
* - For each configuration part:
* - "[int]-[int]" = Integer range, will be expanded to all values in between, values included, starting from low to high (max. 1000). Example "1-34" or "-40--30"
* - "_TABLE:[TCA table name];[_PID:[optional page id, default is current page]];[_ENABLELANG:1]" = Look up of table records from PID, filtering out deleted records. Example "_TABLE:tt_content; _PID:123"
* _ENABLELANG:1 picks only original records without their language overlays
* - Default: Literal value
*
* @param array Array with key (GET var name) and values (value of GET var which is configuration for expansion)
* @param integer Current page ID
* @return array Array with key (GET var name) with the value being an array of all possible values for that key.
*/
function expandParameters($paramArray, $pid)
{
global $TCA;
// Traverse parameter names:
foreach ($paramArray as $p => $v) {
$v = trim($v);
// If value is encapsulated in square brackets it means there are some ranges of values to find, otherwise the value is literal
if (substr($v, 0, 1) === '[' && substr($v, -1) === ']') {
// So, find the value inside brackets and reset the paramArray value as an array.
$v = substr($v, 1, -1);
$paramArray[$p] = array();
// Explode parts and traverse them:
$parts = explode('|', $v);
foreach ($parts as $pV) {
// Look for integer range: (fx. 1-34 or -40--30 // reads minus 40 to minus 30)
if (preg_match('/^(-?[0-9]+)\\s*-\\s*(-?[0-9]+)$/', trim($pV), $reg)) {
// Integer range:
// Swap if first is larger than last:
if ($reg[1] > $reg[2]) {
$temp = $reg[2];
$reg[2] = $reg[1];
$reg[1] = $temp;
}
// Traverse range, add values:
$runAwayBrake = 1000;
// Limit to size of range!
for ($a = $reg[1]; $a <= $reg[2]; $a++) {
$paramArray[$p][] = $a;
$runAwayBrake--;
if ($runAwayBrake <= 0) {
break;
}
}
} elseif (substr(trim($pV), 0, 7) == '_TABLE:') {
// Parse parameters:
$subparts = t3lib_div::trimExplode(';', $pV);
$subpartParams = array();
foreach ($subparts as $spV) {
list($pKey, $pVal) = t3lib_div::trimExplode(':', $spV);
$subpartParams[$pKey] = $pVal;
}
// Table exists:
if (isset($TCA[$subpartParams['_TABLE']])) {
t3lib_div::loadTCA($subpartParams['_TABLE']);
$lookUpPid = isset($subpartParams['_PID']) ? intval($subpartParams['_PID']) : $pid;
$pidField = isset($subpartParams['_PIDFIELD']) ? trim($subpartParams['_PIDFIELD']) : 'pid';
$where = isset($subpartParams['_WHERE']) ? $subpartParams['_WHERE'] : '';
$addTable = isset($subpartParams['_ADDTABLE']) ? $subpartParams['_ADDTABLE'] : '';
$fieldName = $subpartParams['_FIELD'] ? $subpartParams['_FIELD'] : 'uid';
if ($fieldName === 'uid' || $TCA[$subpartParams['_TABLE']]['columns'][$fieldName]) {
$andWhereLanguage = '';
$transOrigPointerField = $TCA[$subpartParams['_TABLE']]['ctrl']['transOrigPointerField'];
if ($subpartParams['_ENABLELANG'] && $transOrigPointerField) {
$andWhereLanguage = ' AND ' . $this->db->quoteStr($transOrigPointerField, $subpartParams['_TABLE']) . ' <= 0 ';
}
$where = $this->db->quoteStr($pidField, $subpartParams['_TABLE']) . '=' . intval($lookUpPid) . ' ' . $andWhereLanguage . $where;
$rows = $this->db->exec_SELECTgetRows($fieldName, $subpartParams['_TABLE'] . $addTable, $where . t3lib_BEfunc::deleteClause($subpartParams['_TABLE']), '', '', '', $fieldName);
if (is_array($rows)) {
$paramArray[$p] = array_merge($paramArray[$p], array_keys($rows));
}
}
}
} else {
// Just add value:
$paramArray[$p][] = $pV;
}
// Hook for processing own expandParameters place holder
if (is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['crawler/class.tx_crawler_lib.php']['expandParameters'])) {
$_params = array('pObj' => &$this, 'paramArray' => &$paramArray, 'currentKey' => $p, 'currentValue' => $pV, 'pid' => $pid);
foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['crawler/class.tx_crawler_lib.php']['expandParameters'] as $key => $_funcRef) {
t3lib_div::callUserFunction($_funcRef, $_params, $this);
}
}
}
// Make unique set of values and sort array by key:
$paramArray[$p] = array_unique($paramArray[$p]);
ksort($paramArray);
} else {
// Set the literal value as only value in array:
$paramArray[$p] = array($v);
}
}
return $paramArray;
}