/**
* Prepare database connection.
*
* @param string $dsn (default = SETTINGS_DSN)
* @param map $opt (default = [ 'table' => 'language', 'language' => SETTINGS_LANGUAGE, 'default' => 'txt' ])
* @param string $language (default = SETTINGS_LANGUAGE)
*/
public function setDSN($dsn = SETTINGS_DSN, $opt = ['table' => 'language', 'use' => SETTINGS_LANGUAGE, 'default' => 'txt'])
{
$this->db = Database::getInstance($dsn);
$query_map = ['@query_prefix' => '', 'escape_name@table' => $opt['table'], 'escape_name@use' => $opt['use'], 'escape_name@default' => $opt['default'], 'select' => "SELECT {:=@use} AS lang, {:=@default} AS default, txt FROM {:=@table} WHERE id='{:=id}'", 'insert' => "INSERT INTO {:=@table} (id, lchange, txt) VALUES ('{:=id}', NOW(), '{:=txt}')", 'delete' => "DELETE FROM {:=@table} WHERE id='{:=id}'"];
$this->db->setQueryHash($query_map);
$this->createTable($opt['table']);
}
/**
* Set database connection string. Change table name and add extra cols if necessary.
*
* @param string $dsn
* @param string $table (default = category)
* @param map $extra_cols
*/
public function setDSN($dsn, $table = 'category', $extra_cols = [])
{
$db = new Database();
$db->setDSN($dsn);
$table = ADatabase::escape_name($table);
$db->setQuery('drop', "DROP TABLE IF EXISTS {$table}");
$query = <<<END
CREATE TABLE {$table} (
id int NOT NULL AUTO_INCREMENT,
pid int,
name varchar(255) NOT NULL,
PRIMARY KEY (id),
FOREIGN KEY (pid) REFERENCES {$table}(id) ON DELETE CASCADE ON UPDATE CASCADE
);
END;
$db->setQuery('create', $query);
$db->setQuery('insert', "INSERT INTO {$table} (pid, name) VALUES ('{:=pid}', '{:=name}')");
$db->setQuery('select_name_pid', "SELECT * FROM {$table} WHERE name='{:=name}' AND pid='{:=pid}'");
$db->setQuery('select_id', "SELECT * FROM {$table} WHERE id='{:=id}'");
}
/**
* Set database connection string.
*
* @tok {sql_name:}a b{:sql_name} -> `a b`
* @see ADatabase::setDSN()
* @param string $arg
* @return empty string
*/
public function tok_sql_dsn($dsn)
{
$this->db = Database::getInstance($dsn);
return '';
}
