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<?php
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/**
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* Created by PhpStorm.
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* User: Zdenda
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* Date: 23.4.2018
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* Time: 12:47
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*/
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namespace App\Model;
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use Illuminate\Support\Facades\DB;
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/**
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* Trida reprezentujici entitu zarizeni v databazi.
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* @package App\Model
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*/
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class Zaznam extends BaseModel
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{
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protected $table = 'zaznam';
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/**
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* Vrati posledni datum pro ktere existuji nejake zaznamy.
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*/
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public static function lastInsertedDate() {
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return DB::table('zaznam_cas')->select(DB::raw('max(date(datetime_od)) as last_day'))->get();
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}
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/**
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* Vrati zaznamy pro urcite zarizeni.
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* Typ vozidla je vracen s kazdym zaznamem.
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*
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* @param $deviceId Id zarizeni pro ktere budou vraceny zaznamy.
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* @param $dateFrom Pocatecni datum. Null znamená poledni vlozeny den.
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* @param $dateTo Koncove datum. Null znamena posledni vlozeny den.
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* @param $timeFrom Pocatecni cas. Null znamena 00:00.
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* @param $timeTo Koncovy cas. Null znamena 23:59.
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* @param $direction Pozadovany smer. Null znamena oba smery.
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*/
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public static function findByDevice($deviceId, $dateFrom, $dateTo, $timeFrom, $timeTo, $direction) {
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$dateTimeFrom = null;
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$dateTimeTo = null;
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$lastDate = null;
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$dir = null;
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// jedno z omezujicich dat je null => ziskej posledni vlozene datum
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if ($dateFrom == null || $dateTo == null) {
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$lastDate = Zaznam::lastInsertedDate();
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if ($lastDate == null) {
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// database is empty
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// todo: error codes
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return "no-data";
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} else {
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$lastDate = $lastDate[0]->last_day;
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}
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}
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if ($dateFrom == null) {
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$dateFrom = $lastDate;
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}
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if ($dateTo == null) {
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$dateTo = $lastDate;
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}
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// omezujici casy
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if ($timeFrom == null) {
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$timeFrom = '00:00:00';
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}
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if ($timeTo == null) {
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$timeTo = '23:59:59';
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}
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$dateTimeFrom = date('Y-m-d H:i:s', strtotime("$dateFrom $timeFrom"));
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$dateTimeTo = date('Y-m-d H:i:s', strtotime("$dateTo $timeTo"));
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// vytvoreni query - vsechno to dat dohromady
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$query = DB::table('zaznam')
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->join('zaznam_cas', 'zaznam.zaznam_cas_id', '=', 'zaznam_cas.id')
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->join('vozidlo', 'zaznam.vozidlo_id', '=', 'vozidlo.id')
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->select('zaznam_cas.datetime_od as datetimeFrom',
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'zaznam_cas.datetime_do as datetimeTo',
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'zaznam_cas.smer as direction',
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'zaznam.rychlost_prumer as speedAverage',
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'vozidlo.nazev as typeVehicle',
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'vozidlo.id as numberVehicle')
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->where('zaznam_cas.datetime_od', '>=', $dateTimeFrom)
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->where('zaznam_cas.datetime_do', '<=', $dateTimeTo)
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->where('zaznam_cas.zarizeni_id', '=', $deviceId);
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if($direction != null) {
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$query = $query->where('zaznam_cas.smer', '=', $direction);
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}
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return $query->get();
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}
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}
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