/**
* Dropdown constructor.
*
* @param array|null $config
* @param string $label
* @param bool $ismulti
* @param int $tid
*/
public function __construct($config = null, $label = '', $ismulti = false, $tid = 0)
{
global $conf;
parent::__construct($config, $label, $ismulti, $tid);
$this->config['schema'] = Schema::cleanTableName($this->config['schema']);
if ($this->usesLookup()) {
$this->schema = new Schema($this->config['schema']);
if (!$this->schema->getId()) {
// schema does not exist
msg(sprintf('Schema %s does not exist', $this->config['schema']), -1);
$this->schema = null;
$this->config['schema'] = '';
return;
}
// apply language replacement
$field = str_replace('$LANG', $conf['lang'], $this->config['field']);
$this->column = $this->schema->findColumn($field);
if (!$this->column) {
$field = str_replace('$LANG', 'en', $this->config['field']);
// fallback to en
$this->column = $this->schema->findColumn($field);
}
if (!$this->column) {
// field does not exist
msg(sprintf('Field %s.%s does not exist', $this->config['schema'], $this->config['field']), -1);
$this->column = null;
$this->config['field'] = '';
return;
}
if ($this->column->isMulti()) {
// field is multi
msg(sprintf('Field %s.%s is a multi field - not allowed for lookup', $this->config['schema'], $this->config['field']), -1);
$this->column = null;
$this->config['field'] = '';
return;
}
}
}
