public function buildFields()
{
return $this->context == self::CONTEXT_EXISTS ? "SELECT 1" : parent::buildFields();
}
public function setSubquery(Select $subquery)
{
if ($subquery->parameters) {
array_push($this->parameters, ...$subquery->parameters);
}
$this->raw("(" . $subquery->build() . ")");
return $this;
}
/**
* @param Database|null $database
* @param Select\Cache|null $cache
*
* @return Select
*/
public static function lookup(Database $database = null, Select\Cache &$cache = null)
{
if (func_num_args() == 2) {
return Select::cached($cache)->from(static::class)->database($database ?: self::$__defaultDatabase);
} else {
return (new Select())->from(static::class)->database($database ?: self::$__defaultDatabase);
}
}
public function testCacheInvalidBuild()
{
$this->expectException(\BadMethodCallException::class);
$cache = null;
Select::cached($cache);
$cache->build();
}
