70 lines
2.9 KiB
PHP
70 lines
2.9 KiB
PHP
<?php
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namespace App\Http\Controllers;
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use Illuminate\Http\Request;
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use App\Models\Kriteria;
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use App\Models\Alternatif;
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use App\Models\Penilaian;
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class PerhitunganController extends Controller
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{
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function index()
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{
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$alternatif = Alternatif::with('penilaian.kriteria')->orderBy('kode_alternatif', 'ASC')->get();
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$kriteria = Kriteria::get();
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$penilaian = Penilaian::with('subKriteria')->get();
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// return response()->json($alternatif);
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// mencari min max
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foreach ($kriteria as $key => $vkriteria) {
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foreach ($penilaian as $key_1 => $vpenilaian) {
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if ($vkriteria->id == $vpenilaian->id_kriteria) {
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if ($vkriteria->sifat == "benefit") {
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$minMax[$vkriteria->id][] = $vpenilaian->subKriteria['bobot'];
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} elseif ($vkriteria->sifat == "cost") {
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$minMax[$vkriteria->id][] = $vpenilaian->subKriteria['bobot'];
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}
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}
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}
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}
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// normalisasi
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foreach ($penilaian as $key_1 => $vpenilaian) {
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foreach ($kriteria as $key => $vkriteria) {
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if ($vkriteria->id == $vpenilaian->id_kriteria) {
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if ($vkriteria->sifat == "benefit") { //nilai sub_kriteria : nilai maksimal
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$normalisasi[$vpenilaian->alternatif->guru['nama_guru']][$vkriteria->id] = $vpenilaian->subKriteria['bobot'] / max($minMax[$vkriteria->id]);
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} elseif ($vkriteria->sifat == "cost") { //nilai minimal : nilai sub_kriteria
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$normalisasi[$vpenilaian->alternatif->guru['nama_guru']][$vkriteria->id] = min($minMax[$vkriteria->id]) / $vpenilaian->subKriteria['bobot'];
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}
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}
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}
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}
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// perangkingan
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foreach ($normalisasi as $key => $vnormalisasi) {
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foreach ($kriteria as $key_1 => $vkriteria) { // hasil normalisasi x bobot_kriteria
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// Check if the key exists in the $vnormalisasi array
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if (isset($vnormalisasi[$vkriteria->id])) {
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$rank[$key][] = $vnormalisasi[$vkriteria->id] * $vkriteria->bobot_kriteria;
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} else {
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// Handle the case when the key is not found (you can skip it or handle it accordingly)
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// For example, you might want to assign a default value or log a message.
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$rank[$key][] = 0; // Assign a default value
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// or
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// log_message('error', 'Key not found: ' . $vkriteria->id);
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}
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}
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}
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foreach ($normalisasi as $key => $value) { //total hasil perangkingan
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$rank[$key][] = array_sum($rank[$key]);
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}
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arsort($rank); //sortir $rank
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// dd($rank);
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return view('pages.proses_penilaian.index', compact(['kriteria', 'alternatif', 'penilaian', 'minMax', 'normalisasi', 'rank']));
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}
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}
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