/**
* Render the #get_db_data parser function
*/
static function doGetDBData(&$parser)
{
global $wgTitle, $edgCurPageName, $edgValues;
// if we're handling multiple pages, reset $edgValues
// when we move from one page to another
$cur_page_name = $wgTitle->getText();
if (!isset($edgCurPageName) || $edgCurPageName != $cur_page_name) {
$edgValues = array();
$edgCurPageName = $cur_page_name;
}
$params = func_get_args();
array_shift($params);
// we already know the $parser ...
$args = EDUtils::parseParams($params);
// parse params into name-value pairs
$data = array_key_exists('data', $args) ? $args['data'] : null;
$dbID = array_key_exists('db', $args) ? $args['db'] : null;
// For backwards-compatibility - 'db' parameter was added
// in External Data version 1.3.
if (is_null($dbID)) {
$dbID = array_key_exists('server', $args) ? $args['server'] : null;
}
$table = array_key_exists('from', $args) ? $args['from'] : null;
$conds = array_key_exists('where', $args) ? $args['where'] : null;
$limit = array_key_exists('limit', $args) ? $args['limit'] : null;
$orderBy = array_key_exists('order by', $args) ? $args['order by'] : null;
$options = array('LIMIT' => $limit, 'ORDER BY' => $orderBy);
$mappings = EDUtils::paramToArray($data);
// parse the data arg into mappings
$external_values = EDUtils::getDBData($dbID, $table, array_values($mappings), $conds, $options);
// handle error cases
if (is_null($external_values)) {
return;
}
// Build $edgValues
foreach ($mappings as $local_var => $external_var) {
if (array_key_exists($external_var, $external_values)) {
foreach ($external_values[$external_var] as $value) {
$edgValues[$local_var][] = $value;
}
}
}
return;
}
/**
* Render the #display_external_table parser function
*
* @author Dan Bolser
*/
static function doDisplayExternalTable(&$parser)
{
global $edgValues;
$params = func_get_args();
array_shift($params);
// we already know the $parser ...
$args = EDUtils::parseParams($params);
// parse params into name-value pairs
if (array_key_exists('template', $args)) {
$template = $args['template'];
} else {
return EDUtils::formatErrorMessage("No template specified");
}
if (array_key_exists('data', $args)) {
// parse the 'data' arg into mappings
$mappings = EDUtils::paramToArray($args['data'], false, false);
} else {
// or just use keys from edgValues
foreach ($edgValues as $local_variable => $values) {
$mappings[$local_variable] = $local_variable;
}
}
// The string placed in the wikitext between template calls -
// default is a newline.
if (array_key_exists('delimiter', $args)) {
$delimiter = str_replace('\\n', "\n", $args['delimiter']);
} else {
$delimiter = "\n";
}
$num_loops = 0;
// May differ when multiple '#get_'s are used in one page
foreach ($mappings as $template_param => $local_variable) {
$num_loops = max($num_loops, count($edgValues[$local_variable]));
}
$text = "";
for ($i = 0; $i < $num_loops; $i++) {
if ($i > 0) {
$text .= $delimiter;
}
$text .= '{{' . $template;
foreach ($mappings as $template_param => $local_variable) {
$value = self::getIndexedValue($local_variable, $i);
$text .= "|{$template_param}={$value}";
}
$text .= "}}";
}
// This actually 'calls' the template that we built above
return array($text, 'noparse' => false);
}
