*** Backup Mirror *** The web interface and JSON api for the ConnectedHumber Air Quality Monitoring Project. https://github.com/ConnectedHumber/Air-Quality-Web
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<?php
namespace AirQuality\Repositories;
use Location\Coordinate;
use Location\Distance\Vincenty;
/**
* Fetches device info from a MariaDB database.
*/
class MariaDBSensorRepository implements ISensorRepository {
public static $table_name = "sensors";
public static $col_id = "id";
public static $col_type = "Type";
public static $col_description = "Description";
public static $table_name_assoc = "device_sensors";
public static $col_assoc_device_id = "device_id";
public static $col_assoc_sensor_id = "sensors_id";
public static $table_name_rtassoc = "sensor_reading_value_types";
public static $col_rtassoc_sensor_id = "sensor_id";
public static $col_rtassoc_rvt_id = "reading_value_types_id";
// ------------------------------------------------------------------------
/**
* The database connection.
* @var \AirQuality\Database
*/
private $database;
/**
* Function that gets a static variable by it's name. Useful in preparing SQL queries.
* @var callable
*/
private $get_static;
/**
* Function that gets a static variable by it's name & class. Useful in preparing SQL queries.
* @var callable
*/
private $get_static_extra;
/**
* Creates a new ISensorRepository implementation that's designed for
* talking to MariaDB databases.
* @param \AirQuality\Database $in_database The database connection instance to use to talk to the database.
*/
function __construct(\AirQuality\Database $in_database) {
$this->database = $in_database;
$this->get_static = function($name) { return self::$$name; };
$this->get_static_extra = function($class_name, $name) {
return $class_name::$$name;
};
}
public function get_all_sensors() {
$s = $this->get_static;
return $this->database->query(
"SELECT
{$s("table_name")}.{$s("col_id")} AS id,
{$s("table_name")}.{$s("col_type")} AS type,
{$s("table_name")}.{$s("col_description")} AS description
FROM {$s("table_name")};", [
]
)->fetchAll();
}
public function get_device_sensors(int $device_id) : array {
$s = $this->get_static;
return $this->database->query(
"SELECT
{$s("table_name")}.{$s("col_id")} AS id,
{$s("table_name")}.{$s("col_type")} AS type,
{$s("table_name")}.{$s("col_description")} AS description
FROM {$s("table_name_assoc")}
JOIN {$s("table_name")}
ON {$s("table_name")}.{$s("col_id")} = {$s("table_name_assoc")}.{$s("col_assoc_sensor_id")}
WHERE {$s("table_name_assoc")}.{$s("col_assoc_device_id")} = :device_id;", [
"device_id" => $device_id
]
)->fetchAll();
}
}