Air-Quality-Web/logic/Repositories/MariaDBMeasurementTypeRepos...

55 lines
1.5 KiB
PHP

<?php
namespace AirQuality\Repositories;
/**
* Fetches device info from a MariaDB database.
*/
class MariaDBMeasurementTypeRepository implements IMeasurementTypeRepository {
public static $table_name = "reading_value_types";
public static $column_id = "id";
public static $column_friendly_text = "friendly_text";
// ------------------------------------------------------------------------
/**
* The database connection.
* @var \AirQuality\Database
*/
private $database;
/** Function that gets a static variable by it's name. Useful in preparing SQL queries. */
private $get_static;
function __construct(\AirQuality\Database $in_database) {
$this->database = $in_database;
$this->get_static = function($name) { return self::$$name; };
}
public function is_valid_type(string $type_name) : boolean {
$s = $this->get_static;
return !empty($this->database->query(
"SELECT {$s("column_id")} FROM {$s("table_name")};"
)->fetchColumn());
}
public function get_friendly_name(string $type_name) : string {
// TODO: Cache results here? Maybe https://packagist.org/packages/thumbtack/querycache will be of some use
$s = $this->get_static;
return $this->database->query(
"SELECT {$s("column_friendly_text")} FROM {$s("table_name")} WHERE $this->column_id = :type_name;", [
"type_name" => $type_name
]
)->fetchColumn();
}
public function get_all_types() {
$s = $this->get_static;
return $this->database->query(
"SELECT * FROM {$s("table_name")}"
)->fetchAll();
}
}