<?php
class GPSSimulation {
private $conn;
private $hst = null;
private $db = null;
private $usr = null;
private $pwd = null;
private $gpsdata = [];
//////////////////////// PRIVATE
private function fillDataTable() {
$this->initializeDatabase();
$add = $this->conn->prepare("INSERT INTO gpsmsg(dom, wagon, x, y)
VALUES(?, ?, ?, ?)");
// voorkom dubbele entries in de database.
// als satelliet, datum, x en y al voorkomen in de tabel
// kun je vaststellen dat de huifkar tijdelijk stilstaat
// voor pauze, lunch of restaurantbezoek
// en is een nieuwe entry niet nodig.
$doesRecordExist = $this->conn->prepare(
"SELECT COUNT(*) FROM gpsmsg
WHERE dom = ? AND wagon = ? AND x = ? AND y = ?"
);
foreach($this->gpsdata as $ins) {
list($dom, $wagon, $x, $y) = $ins;
$doesRecordExist->execute([$dom, $wagon, $x, $y]);
if($doesRecordExist->fetchColumn() == 0) {
$add->execute([$dom, $wagon, $x, $y]);
}
}
}
private function initializeDatabase() {
$this->conn->query("TRUNCATE TABLE gpsmsg");
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 100, 100];
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 150, 150];
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 230, 310];
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 80, 245];
// test dubbelen, worden niet opgenomen in de database
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 100, 100];
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 150, 150];
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 230, 310];
$this->gpsdata[] = ["2023-10-19", "Old Faithful", 80, 245];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 10, 54];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 75, 194];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 175, 161];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 134, 280];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 300, 160];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 400, 290];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 544, 222];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 444, 122];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 321, 60];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 200, 88];
$this->gpsdata[] = ["2023-10-15", "Jade Princess", 25, 25];
$this->gpsdata[] = ["2023-10-10", "Skyblue Wonder", 50, 50];
$this->gpsdata[] = ["2023-10-10", "Skyblue Wonder", 300, 188];
$this->gpsdata[] = ["2023-10-10", "Skyblue Wonder", 225, 90];
// test dubbelen, worden niet opgenomen in de database
$this->gpsdata[] = ["2023-10-10", "Skyblue Wonder", 50, 50];
$this->gpsdata[] = ["2023-10-10", "Skyblue Wonder", 300, 188];
$this->gpsdata[] = ["2023-10-10", "Skyblue Wonder", 225, 90];
$this->gpsdata[] = ["2023-10-05", "Red Lobster", 50, 50];
$this->gpsdata[] = ["2023-10-05", "Red Lobster", 190, 288];
$this->gpsdata[] = ["2023-10-05", "Red Lobster", 260, 122];
$this->gpsdata[] = ["2023-10-05", "Red Lobster", 340, 90];
$this->gpsdata[] = ["2023-10-05", "Red Lobster", 240, 45];
}
//////////////////////// PUBLIC
public function __construct($phst, $pdb, $pusr, $ppwd, $refresh = false) {
$this->hst = $phst; // bewaar de verbindingsgegevens
$this->db = $pdb;
$this->hst = $pusr;
$this->pwd = $ppwd;
$this->conn = new PDO("mysql:host=$phst;dbname=$pdb", $pusr, $ppwd);
if($refresh) $this->fillDataTable();
}
public function getDataRaw($wagname = null) {
$sql = "SELECT * FROM gpsmsg ";
if($satnm != null) {
$sql .= "WHERE wagon = :wag";
$stmt = $this->conn->prepare($sql);
$stmt->execute([":wag" => $wagname]);
} else {
$stmt = $this->conn->query($sql);
}
$s = "<table border='1' cellspacing='5' cellpadding='5'>";
$s .= "\r<tr><td>Date</td><td>Wagon</td><td>X</td><td>Y</td><tr>";
while ($row = $stmt->fetch(PDO::FETCH_OBJ)) {
$s .= "\r<tr>"
."<td>{$row->dom}</td>"
."<td>{$row->wagon}</td>"
."<td>{$row->x}</td>"
."<td>{$row->y}</td>"
."</tr>";
}
$s .= "\r</table><br>";
return $s;
}
public function getTraject() {
$stmt = $this->conn->query("SELECT * FROM gpsmsg ");
$dta = [];
while($row = $stmt->fetch(PDO::FETCH_OBJ)) {
$dta[] = [
"dom" => $row->dom,
"wagon" => $row->wagon,
"x" => $row->x,
"y" => $row->y
];
}
return $dta;
}
public function createSelectbox() {
$stmt = $this->conn->query("SELECT DISTINCT wagon FROM gpsmsg");
$s = "<div id='pleaseChooseWagon'><strong>Wagon</strong>";
$s .= "<select name='selWagon' id='selWagon' "
."onchange='getWagonSelected(this)'>";
$s .= "<option value='0'>-- choose wagon --</option>";
while($row = $stmt->fetch(PDO::FETCH_OBJ)) {
$s .= "<option value='{$row->wagon}'>{$row->wagon}</option>";
}
$s .= "</select></div>";
return $s;
}
} // einde class GPSSimulation
