MIF_E31222541/app/Http/Controllers/Website/AlternatifReferensiControll...

311 lines
12 KiB
PHP

<?php
namespace App\Http\Controllers\Website;
use App\Http\Controllers\Controller;
use App\Models\CriteriaData;
use App\Models\Plant;
use App\Models\PreferenceResultPlant;
use App\Models\ReferensiAlternatif;
use Illuminate\Http\Request;
class AlternatifReferensiController extends Controller
{
public function index()
{
$plants = Plant::leftJoin('referensi_alternatifs', 'plants.id', '=', 'referensi_alternatifs.plant_id')
->whereNull('referensi_alternatifs.plant_id')
->select('plants.*')
->get();
$criterias = CriteriaData::all();
$listReferensiAlternatif = ReferensiAlternatif::select(
'referensi_alternatifs.id as referensi_alternatifs_id',
'referensi_alternatifs.plant_id as ra_plant_id',
'referensi_alternatifs.criteria_id as ra_criteria_id',
'referensi_alternatifs.value_alternatif',
'plants.id as plants_id',
'plants.plant',
'criteria_data.id as criteria_data_id',
'criteria_data.criteria',
'criteria_data.bobot',
'criteria_data.status'
)
->join('plants', 'plants.id', '=', 'referensi_alternatifs.plant_id')
->join('criteria_data', 'criteria_data.id', '=', 'referensi_alternatifs.criteria_id')
->get();
$groupByPlant = $listReferensiAlternatif->groupBy('ra_plant_id')->map(function ($plantData) {
$plant = $plantData->first();
return [
'plant_id' => $plant->plants_id,
'plant' => $plant->plant,
'criteria' => $plantData->map(function ($item) {
return [
'criteria_id' => $item->criteria_data_id,
'criteria' => $item->criteria,
'value_alternatif' => $item->value_alternatif,
'status' => $item->status,
'bobot' => $item->bobot
];
})->toArray()
];
});
// dd($groupByPlant);
return view('website.app.referensi-alternatif', compact('plants', 'criterias', 'groupByPlant'));
}
public function addAlternatifReferensi(Request $request)
{
$criterias = CriteriaData::all();
$plantId = $request->input('plantId');
foreach ($criterias as $key => $value) {
ReferensiAlternatif::create([
'plant_id' => $plantId,
'criteria_id' => $value->id,
'value_alternatif' => $request->input(str_replace(' ', '_', $value->criteria))
]);
// dd($request, $value, $request->input(str_replace(' ', '_', $value->criteria)));
}
toast('Data referensi alternatif berhasil ditambahkan!', 'success');
return redirect()->back();
}
public function updateAlternatifReferensi(Request $request)
{
$criterias = CriteriaData::all();
$plantId = $request->input('plantId');
foreach ($criterias as $key => $value) {
ReferensiAlternatif::updateOrCreate(
[
'plant_id' => $plantId,
'criteria_id' => $value->id,
],
[
'value_alternatif' => $request->input(str_replace(' ', '_', $value->criteria))
]
);
}
toast('Data referensi alternatif berhasil diubah!', 'success');
return redirect()->back();
}
public function deleteAlternatifReferensi($id)
{
// hapus referensi alternatif
$referensiAlternatif = ReferensiAlternatif::where('plant_id', '=', $id)->get();
foreach ($referensiAlternatif as $value) {
$value->delete();
}
// hapus pada relasi preference result plants
$preferenceResultPlant = PreferenceResultPlant::where('plant_id', '=', $id)->get();
foreach ($preferenceResultPlant as $value) {
$value->delete();
}
toast('Data alternatif referensi berhasil dihapus', 'success');
return redirect()->back();
}
public function getListAlternatifReferensi()
{
$listReferensiAlternatif = ReferensiAlternatif::select(
'referensi_alternatifs.id as referensi_alternatifs_id',
'referensi_alternatifs.plant_id as ra_plant_id',
'referensi_alternatifs.criteria_id as ra_criteria_id',
'referensi_alternatifs.value_alternatif',
'plants.id as plants_id',
'plants.plant',
'criteria_data.id as criteria_data_id',
'criteria_data.criteria',
'criteria_data.bobot',
'criteria_data.status'
)
->join('plants', 'plants.id', '=', 'referensi_alternatifs.plant_id')
->join('criteria_data', 'criteria_data.id', '=', 'referensi_alternatifs.criteria_id')
->get();
$listCriteria = CriteriaData::all();
$groupByPlant = $listReferensiAlternatif->groupBy('ra_plant_id')->map(function ($plantData) {
$plant = $plantData->first();
return [
'plant_id' => $plant->plants_id,
'plant' => $plant->plant,
'criteria' => $plantData->map(function ($item) {
return [
'criteria_id' => $item->criteria_data_id,
'criteria' => $item->criteria,
'value_alternatif' => $item->value_alternatif,
'status' => $item->status,
'bobot' => $item->bobot
];
})->toArray()
];
});
// mengecek apakah jumlah pada setiap criteria sama
$firstGroupByPlant = count($groupByPlant[1]['criteria']);
$checkGroupByPlant = true;
foreach ($groupByPlant as $plant) {
if (count($plant['criteria']) !== $firstGroupByPlant) {
$checkGroupByPlant = false;
break;
}
}
// jika jumlah pada setiap criteria berbeda
if ($checkGroupByPlant == false) {
return response()->json([
'listCriterias' => $listCriteria,
'groupByPlant' => $groupByPlant,
'message' => 'fail'
]);
} else {
// pembagi matriks ternomalisasi
$countCriteria = count($groupByPlant[1]['criteria']);
$pembagiMatriksTernomalisasi = [];
for ($i = 0; $i < $countCriteria; $i++) {
$sumKuadrat = 0;
foreach ($groupByPlant as $item) {
$sumKuadrat += pow($item["criteria"][$i]["value_alternatif"], 2);
}
// Hitung akar dari jumlah kuadrat
$pembagiMatriksTernomalisasi[$i] = round((sqrt($sumKuadrat)), 5);
}
// matrik ternomalisasi referensi (value / pembagi)
$matriksTernomalisasiReferensi = [];
foreach ($groupByPlant as $item) {
$valueBaru = [];
foreach ($item['criteria'] as $index => $value) {
$value['value_alternatif'] = round(($value['value_alternatif'] / $pembagiMatriksTernomalisasi[$index]), 5);
$valueBaru[] = [
'criteria_id' => $value['criteria_id'],
'criteria' => $value['criteria'],
'value_alternatif' => $value['value_alternatif'],
'status' => $value['status'],
'bobot' => $value['bobot']
];
}
$matriksTernomalisasiReferensi[] = [
'plant_id' => $item['plant_id'],
'plant' => $item['plant'],
'criteria' => $valueBaru
];
}
// matrik ternomalisasi referensi (value / pembagi)
$ternomalisasiTerbobotReferensi = [];
foreach ($groupByPlant as $item) {
$valueBaru = [];
foreach ($item['criteria'] as $index => $value) {
$value['value_alternatif'] = round(($value['value_alternatif'] / $pembagiMatriksTernomalisasi[$index]), 5);
$valueBaru[] = [
'criteria_id' => $value['criteria_id'],
'criteria' => $value['criteria'],
'value_alternatif' => round(($value['value_alternatif'] * $value['bobot']), 5),
'status' => $value['status'],
'bobot' => $value['bobot']
];
}
$ternomalisasiTerbobotReferensi[] = [
'plant_id' => $item['plant_id'],
'plant' => $item['plant'],
'criteria' => $valueBaru
];
}
// solusi ideal referensi
// 1. pengumpulan hasil data terbobot berdasarkan criteria
$criteria_values = [];
foreach ($ternomalisasiTerbobotReferensi as $ternomalisasi) {
foreach ($ternomalisasi['criteria'] as $index => $criteria) {
$criteria_values[$index]['criteria_id'] = $criteria['criteria_id'];
$criteria_values[$index]['criteria'] = $criteria['criteria'];
$criteria_values[$index]['status'] = $criteria['status'];
$criteria_values[$index]['values'][] = $criteria['value_alternatif'];
}
}
// 2. menentukan ideal positif dan ideal negatif
$ideal_positif = [];
$ideal_negatif = [];
foreach ($criteria_values as $index => $criteria) {
if ($criteria['status'] === "benefit") {
$ideal_positif[$index] = max($criteria['values']);
$ideal_negatif[$index] = min($criteria['values']);
} else {
$ideal_positif[$index] = min($criteria['values']);
$ideal_negatif[$index] = max($criteria['values']);
}
}
// solusi ideal terbobot referensi
$determinanReferensi = [];
foreach ($ternomalisasiTerbobotReferensi as $ternomalisasi) {
$jumlahDeterminanPositif = 0;
$jumlahDeterminanNegatif = 0;
foreach ($ternomalisasi['criteria'] as $index => $criteria) {
$jumlahDeterminanPositif += pow(($criteria['value_alternatif'] - $ideal_positif[$index]), 2);
$jumlahDeterminanNegatif += pow(($criteria['value_alternatif'] - $ideal_negatif[$index]), 2);
}
$determinanReferensi[] = [
'id' => $ternomalisasi['plant_id'],
'plant' => $ternomalisasi['plant'],
'determinanPositif' => round((sqrt($jumlahDeterminanPositif)), 5),
'determinanNegatif' => round((sqrt($jumlahDeterminanNegatif)), 5)
];
}
return response()->json([
'listCriterias' => $listCriteria,
'groupByPlant' => $groupByPlant,
'pembagiMatriksTernomalisasi' => $pembagiMatriksTernomalisasi,
'matriksTernomalisasiReferensi' => $matriksTernomalisasiReferensi,
'ternomalisasiTerbobotReferensi' => $ternomalisasiTerbobotReferensi,
'solusiIdealPositif' => $ideal_positif,
'solusiIdealNegatif' => $ideal_negatif,
'determinanReferensi' => $determinanReferensi
]);
}
}
public function addPreferensiResultReferensi()
{
$response = $this->getListAlternatifReferensi();
$data = json_decode($response->getContent(), true);
$preferenceResultPlant = $data['determinanReferensi'];
foreach ($preferenceResultPlant as $preference) {
// dd($preference, round($preference['determinanNegatif'] / ($preference['determinanNegatif'] + $preference['determinanPositif']), 5), $month, $year);
PreferenceResultPlant::updateOrCreate(
[
'plant_id' => $preference['id'],
],
[
'value_preference' => round($preference['determinanNegatif'] / ($preference['determinanNegatif'] + $preference['determinanPositif']), 5)
]
);
}
return response()->json([
'message' => 'success'
]);
}
}