/**
* This function uses the Variables extension to provide navigation aids such as DPL_firstTitle, DPL_lastTitle, or DPL_findTitle. These variables can be accessed as {{#var:DPL_firstTitle}} if Extension:Variables is installed.
*
* @access public
* @param array Array of scroll variables with the key as the variable name and the value as the value. Non-arrays will be casted to arrays.
* @return void
*/
private function defineScrollVariables($scrollVariables)
{
$scrollVariables = (array) $scrollVariables;
foreach ($scrollVariables as $variable => $value) {
Variables::setVar(['', '', $variable, $value]);
if (defined('ExtVariables::VERSION')) {
\ExtVariables::get($this->parser)->setVarValue($variable, $value);
}
}
}
/**
* Connects to 'Variables' extension and sets a variable. Handles different versions of
* 'Variables' extension since there have changed some things along the way.
*
* @param Parser $parser
* @param string $varName
* @param string $varValue
*/
private static function setVariable(Parser &$parser, $varName, $varValue)
{
global $wgExtVariables;
static $newVersion = null;
if ($newVersion === null) {
// find out whether local wiki is using variables extension 2.0 or higher
$newVersion = defined('ExtVariables::VERSION') && version_compare(ExtVariables::VERSION, '1.9999', '>');
}
if ($newVersion) {
// clean way since Variables 2.0:
ExtVariables::get($parser)->setVarValue($varName, $varValue);
} else {
// make sure to trim values and convert them to string since old versions of Variables extension won't do this.
$wgExtVariables->vardefine($parser, trim($varName), trim($varValue));
}
}