*** Backup Mirror *** The web interface and JSON api for the ConnectedHumber Air Quality Monitoring Project. https://github.com/ConnectedHumber/Air-Quality-Web
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

106 lines
3.2 KiB

<?php
namespace AirQuality\Repositories;
/**
* Fetches device info from a MariaDB database.
*/
class MariaDBDeviceRepository implements IDeviceRepository {
public static $table_name = "devices";
public static $column_device_id = "device_id";
public static $column_device_name = "device_name";
public static $column_device_type = "device_type";
public static $column_owner_id = "owner_id";
public static $column_lat = "device_latitude";
public static $column_long = "device_longitude";
public static $column_altitude = "device_altitude";
public static $table_name_type = "device_types";
public static $column_type_id = "device_type";
public static $column_type_processor = "processor";
public static $column_type_connection = "Connection";
public static $column_type_particle_sensor = "particle_sensor";
public static $column_type_temp_sensor = "temp_sensor";
public static $column_type_power = "power";
public static $column_type_software = "Software";
public static $column_type_notes = "Other";
// ------------------------------------------------------------------------
/**
* 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 __construct(\AirQuality\Database $in_database) {
$this->database = $in_database;
$this->get_static = function($name) { return self::$$name; };
}
public function get_all_devices($only_with_location) {
$s = $this->get_static;
$sql = "SELECT
{$s("column_device_id")} AS id,
{$s("column_device_name")} AS name,
{$s("column_lat")} AS latitude,
{$s("column_long")} AS longitude,
{$s("column_altitude")} AS altitude,
{$s("column_device_type")} AS type_id
FROM {$s("table_name")}";
if($only_with_location)
$sql .= "\nWHERE
{$s("column_lat")} IS NOT NULL
AND {$s("column_long")} IS NOT NULL";
$sql .= ";";
return $this->database->query($sql)->fetchAll();
}
public function get_device_info_ext($device_id) {
$s = $this->get_static;
$query_result = $this->database->query(
"SELECT
{$s("table_name")}.{$s("column_device_id")} AS id,
{$s("table_name")}.{$s("column_device_name")} AS name,
{$s("table_name")}.{$s("column_lat")} AS latitude,
{$s("table_name")}.{$s("column_long")} AS longitude,
{$s("table_name")}.{$s("column_altitude")} AS altitude,
{$s("table_name_type")}.*
FROM {$s("table_name")}
JOIN {$s("table_name_type")} ON
{$s("table_name")}.{$s("column_device_type")} = {$s("table_name_type")}.{$s("column_type_id")}
WHERE {$s("table_name")}.{$s("column_device_id")} = :device_id;", [
"device_id" => $device_id
]
)->fetch(); // gets the next row from the query
$result = [];
foreach($query_result as $key => $value) {
// Hack! Filter out some useless columns
// We do this so that we can return everything we know about the
// device in a manner that means we don't need to alter this code
// if additional columns are added later.
if($key == self::$column_type_id)
continue;
$result[strtolower($key)] = $value;
}
return $result;
}
}