133 lines
3.6 KiB
PHP
133 lines
3.6 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Model;
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use Nette;
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use Nette\Database\Explorer;
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use Nette\Database\Row;
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use Nette\Security\User;
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use Nette\Utils\DateTime;
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/**
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* Třída pro načítání informací o obvodech z DB.
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*/
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final class ObvodFacade
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{
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/** Sloupce bez GEO, aby seznam obvodů nenačítal hranice. */
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private const SLOUPCE = 'ID, NAZEV, CISLO, SKUPINA, AKTIVNI';
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public function __construct(
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private Explorer $database,
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private User $user,
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) {
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}
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/**
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* Základní informace o obvodu.
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* @param int $id
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* @return Nette\Database\Table\ActiveRow|null
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*/
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public function getObvod(int $id): Row|null
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{
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$sql = 'SELECT ' . self::SLOUPCE . '
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FROM OBVOD
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WHERE OBVOD.ID = ?';
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return $this->database->fetch($sql, $id);
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}
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public const SKUPINA_COOKIE = 'obvodSkupina';
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/**
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* Základní informace o obvodech.
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* @return array<int, Row>
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*/
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public function getObvody(?string $skupina = null): array
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{
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if ($skupina === null || $skupina === '') {
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return $this->database->fetchAll('SELECT ' . self::SLOUPCE . ' FROM OBVOD ORDER BY CISLO');
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}
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return $this->database->fetchAll(
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'SELECT ' . self::SLOUPCE . ' FROM OBVOD WHERE SKUPINA = ? ORDER BY CISLO',
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$skupina,
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);
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}
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/**
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* @return list<string>
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*/
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public function getSkupiny(): array
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{
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$radky = $this->database->fetchAll(
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"SELECT DISTINCT SKUPINA
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FROM OBVOD
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WHERE SKUPINA IS NOT NULL AND LTRIM(RTRIM(SKUPINA)) <> ''
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ORDER BY SKUPINA",
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);
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return array_map(static fn(Row $radek): string => (string) $radek->SKUPINA, $radky);
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}
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/**
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* Předchozí a další existující obvod podle čísla.
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* Čísla nemusí jít po sobě.
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*
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* @return array{predchozi: int|null, dalsi: int|null}
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*/
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public function getSousede(int $id): array
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{
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$prazdne = ['predchozi' => null, 'dalsi' => null];
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$radky = $this->database->fetchAll('SELECT ID FROM OBVOD ORDER BY CISLO, ID');
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$ids = array_map(static fn(Row $radek): int => (int) $radek->ID, $radky);
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$index = array_search($id, $ids, true);
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if ($index === false) {
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return $prazdne;
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}
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return [
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'predchozi' => $index > 0 ? $ids[$index - 1] : null,
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'dalsi' => $index < count($ids) - 1 ? $ids[$index + 1] : null,
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];
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}
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public function vyberSkupinu(?string $pozadovana, ?string $ulozena): string
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{
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$skupiny = $this->getSkupiny();
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if ($pozadovana !== null && in_array($pozadovana, $skupiny, true)) {
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return $pozadovana;
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}
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if ($ulozena !== null && in_array($ulozena, $skupiny, true)) {
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return $ulozena;
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}
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return $skupiny[0] ?? '';
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}
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/**
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* Hranice obvodů jako GeoJSON FeatureCollection.
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* GEO v databázi je GeoJSON geometrie (Polygon nebo MultiPolygon).
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*/
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public function getGeoJson(): string
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{
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$radky = $this->database->fetchAll(
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"SELECT CISLO, GEO
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FROM OBVOD
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WHERE GEO IS NOT NULL AND LTRIM(RTRIM(GEO)) <> ''
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ORDER BY CISLO",
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);
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$features = [];
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foreach ($radky as $radek) {
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$features[] = '{"type":"Feature","properties":{"number":'
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. (int) $radek->CISLO
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. '},"geometry":'
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. $radek->GEO
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. '}';
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}
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return '{"type":"FeatureCollection","features":[' . implode(',', $features) . ']}';
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}
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} |