mirror of
https://github.com/ConnectedHumber/Air-Quality-Web
synced 2024-06-16 08:04:55 +00:00
96 lines
3.2 KiB
PHP
96 lines
3.2 KiB
PHP
<?php
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namespace AirQuality\Repositories;
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/**
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* Fetches device info from a MariaDB database.
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*/
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class MariaDBMeasurementTypeRepository implements IMeasurementTypeRepository {
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public static $table_name = "reading_value_types";
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public static $column_id = "id";
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public static $column_short_description = "short_descr";
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public static $column_friendly_text = "friendly_text";
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// ------------------------------------------------------------------------
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/**
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* The database connection.
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* @var \AirQuality\Database
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*/
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private $database;
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/** Functions that get a static variable by it's name. Useful in preparing SQL queries. */
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private $get_static;
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private $get_static_extra;
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function __construct(\AirQuality\Database $in_database) {
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$this->database = $in_database;
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$this->get_static = function($name) { return self::$$name; };
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$this->get_static_extra = function($class_name, $name) {
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return $class_name::$$name;
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};
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}
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public function is_valid_type(int $id) : bool {
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$s = $this->get_static;
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return !empty($this->database->query(
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"SELECT {$s("column_id")} FROM {$s("table_name")} WHERE {$s("column_id")} = :id;", [
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"id" => $id
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]
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)->fetchColumn());
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}
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public function get_id(string $short_descr) {
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$s = $this->get_static;
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$result = $this->database->query(
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"SELECT {$s("column_id")} FROM {$s("table_name")} WHERE {$s("column_short_description")} = :short_descr", [
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"short_descr" => $short_descr
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]
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)->fetchColumn();
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if($result == false)
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return null;
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return $result;
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}
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public function get_friendly_name(int $id) : string {
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// TODO: Cache results here? Maybe https://packagist.org/packages/thumbtack/querycache will be of some use
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$s = $this->get_static;
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return $this->database->query(
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"SELECT {$s("column_friendly_text")} FROM {$s("table_name")} WHERE $this->column_id = :id;", [
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"id" => $id
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]
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)->fetchColumn();
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}
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public function get_all_types() {
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$s = $this->get_static;
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return $this->database->query(
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"SELECT * FROM {$s("table_name")}"
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)->fetchAll();
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}
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public function get_types_by_device($device_id) {
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$s = $this->get_static;
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$o = $this->get_static_extra;
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return $this->database->query(
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"SELECT
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{$s("table_name")}.*,
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COUNT({$s("table_name")}.{$s("column_id")}) AS count
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FROM {$o(MariaDBMeasurementDataRepository::class, "table_name_values")}
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JOIN {$o(MariaDBMeasurementDataRepository::class, "table_name_metadata")} ON
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{$o(MariaDBMeasurementDataRepository::class, "table_name_metadata")}.{$o(MariaDBMeasurementDataRepository::class, "column_metadata_id")} = {$o(MariaDBMeasurementDataRepository::class, "table_name_values")}.{$o(MariaDBMeasurementDataRepository::class, "column_values_reading_id")}
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JOIN {$s("table_name")} ON
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{$s("table_name")}.{$s("column_id")} = {$o(MariaDBMeasurementDataRepository::class, "table_name_values")}.{$o(MariaDBMeasurementDataRepository::class, "column_values_reading_type")}
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WHERE {$o(MariaDBMeasurementDataRepository::class, "table_name_metadata")}.{$o(MariaDBMeasurementDataRepository::class, "column_metadata_device_id")} = :device_id
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GROUP BY {$s("table_name")}.{$s("column_id")};", [
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"device_id" => $device_id
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]
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)->fetchAll();
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}
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}
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