Merge pull request #30 from arieeefajar/fix/assessment-form

fix(assessment-form): function certainty factor calculation

app/Http/Controllers/AssesmentFormController.php

@@ -7,6 +7,7 @@
 use App\Models\Indicator;
 use App\Models\Land;
 use App\Models\Rule;
+use Dotenv\Parser\Value;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Validator;
@@ -18,12 +19,21 @@ public function index()
         $lands = Land::select('id', 'owner')->whereNotIn('id', function ($query) {
             $query->select('land_id')->from('evaluation');
         })->orderBy('created_at', 'desc')->get();
-        $indicators = Indicator::select('id', 'name')->whereIn('id', function ($query) {
+        $indicators = Indicator::select('id', 'name')->whereHas('rules')->with('rules')->get();
-            $query->select('indicator_id')->from('rule');
-        })->get();
         return view('assessment.form', compact('lands', 'indicators'));
     }
 
+    public function calculateCFc($cf1, $cf2)
+    {
+        if ($cf1 >= 0 && $cf2 >= 0) {
+            return $cf1 + $cf2 * (1 - $cf1);
+        } elseif ($cf1 < 0 && $cf2 < 0) {
+            return $cf1 + $cf2 * (1 + $cf1);
+        } else {
+            return ($cf1 + $cf2) / (1 - min(abs($cf1), abs($cf2)));
+        }
+    }
+
     public function store(Request $request)
     {
         $customMessages = [
@@ -40,54 +50,120 @@ public function store(Request $request)
             return redirect()->back()->withInput();
         }
 
-        $indicators = $request->except('_token', 'land');
+        $cf_e = $request->except('_token', 'land');
-        if (count($indicators) == 0) {
+        if (count($cf_e) == 0) {
             toast('Harap pilih jawaban untuk nilai indikator', 'error')->position('top-right')->autoclose(3000);
             return redirect()->back();
         }
 
-        $rules = Rule::whereIn('indicator_id', array_keys($indicators))->get()->keyBy('indicator_id');
+        $cf_h = collect(Rule::whereIn('indicator_id', array_keys($cf_e))
+            ->orderByDesc('cf')
+            ->get()
+            ->unique('indicator_id')
+            ->pluck('cf', 'indicator_id')
+            ->sortKeys());
 
-        $cfValue = [];
+
-        foreach ($indicators as $id => $value) {
+        $cf_he = collect($cf_e)->map(function ($value, $key) use ($cf_h) {
-            if (isset($rules[$id])) {
+            return [
-                $rule = $rules[$id];
+                "cf(h,e)" . $key => (float) $value * (float) ($cf_h[$key] ?? 1)
-                $cfValue[$id] = $rule->mb * $value;
+            ];
+        })->collapse();
+
+        $cf_he_array = $cf_he->toArray();
+
+        $cf_combined = array_shift($cf_he_array);
+
+        foreach ($cf_he_array as $cf) {
+            $cf_combined = $this->calculateCFc($cf_combined, $cf);
+        }
+
+        $cf_pakar = Rule::pluck('cf')->toArray();
+
+        $mean_cf = collect($cf_pakar)->avg();
+        $std_dev_cf = sqrt(collect($cf_pakar)->map(function ($cf) use ($mean_cf) {
+            return pow($cf - $mean_cf, 2);
+        })->avg());
+
+        $threshold_cocok = $mean_cf + $std_dev_cf;
+        $threshold_cocok_bersyarat = $mean_cf - $std_dev_cf;
+
+        if ($cf_combined > $threshold_cocok) {
+            $hasil = 'cocok';
+        } elseif ($cf_combined > $threshold_cocok_bersyarat) {
+            $hasil = 'cocok bersyarat';
         } else {
-                toast("Rule untuk indikator ID {$id} tidak ditemukan.", 'error')->position('top-right')->autoclose(3000);
+            $hasil = 'tidak cocok';
-                return redirect()->back();
-            }
         }
 
-        $cfCombine = array_shift($cfValue);
+        $landName = Land::find($request->land)->owner;
-
+        // dd($cf_e, $cf_h, $cf_he, $cf_he_array, $cf_combined, $hasil);
-        foreach ($cfValue as $cf) {
-            $cfCombine = $cfCombine + $cf * (1 - $cfCombine);
-        }
 
         DB::beginTransaction();
         try {
             $evaluation = new Evaluation;
             $evaluation->land_id = $request->land;
-            $evaluation->cf_value = $cfCombine;
+            $evaluation->cf_value = $cf_combined;
             $evaluation->user_id = auth()->user()->id;
             $evaluation->save();
 
-            foreach ($indicators as $id => $value) {
+            foreach ($cf_e as $id => $value) {
-                $evaluationDetail = new EvaluationDetail();
+                $evaluationDetail = new EvaluationDetail;
                 $evaluationDetail->evaluation_id = $evaluation->id;
                 $evaluationDetail->indicator_id = $id;
-                $evaluationDetail->md_value = $value;
+                $evaluationDetail->cf_e = $value;
                 $evaluationDetail->save();
             }
             DB::commit();
-            $presentase = round($cfCombine * 100, 2);
+            $presentase = round($cf_combined * 100, 2);
-            toast('Data berhasil disimpan', 'success')->position('top-right')->autoclose(3000);
+            toast("Data berhasil disimpan.", "success")->position('top-right')->autoclose(3000);
-            return redirect()->back()->with('presentase', $presentase);
+            return redirect()->back()->with(['land' => $landName, 'presentase' => $presentase, 'hasil' => $hasil]);
         } catch (\Throwable $th) {
             DB::rollBack();
-            toast('Terjadi kesalahan', 'error')->position('top-right')->autoclose(3000);
+            toast($th->getMessage(), 'error')->position('top-right')->autoclose(3000);
             return redirect()->back();
         }
+
+        // $cfValue = [];
+        // foreach ($cf_e as $id => $value) {
+        //     if (isset($rules[$id])) {
+        //         $rule = $rules[$id];
+        //         $cfValue[$id] = $rule->mb * $value;
+        //     } else {
+        //         toast("Rule untuk indikator ID {$id} tidak ditemukan.", 'error')->position('top-right')->autoclose(3000);
+        //         return redirect()->back();
+        //     }
+        // }
+
+        // $cfCombine = array_shift($cfValue);
+
+        // foreach ($cfValue as $cf) {
+        //     $cfCombine = $cfCombine + $cf * (1 - $cfCombine);
+        // }
+
+        // DB::beginTransaction();
+        // try {
+        //     $evaluation = new Evaluation;
+        //     $evaluation->land_id = $request->land;
+        //     $evaluation->cf_value = $cfCombine;
+        //     $evaluation->user_id = auth()->user()->id;
+        //     $evaluation->save();
+
+        //     foreach ($indicators as $id => $value) {
+        //         $evaluationDetail = new EvaluationDetail();
+        //         $evaluationDetail->evaluation_id = $evaluation->id;
+        //         $evaluationDetail->indicator_id = $id;
+        //         $evaluationDetail->md_value = $value;
+        //         $evaluationDetail->save();
+        //     }
+        //     DB::commit();
+        //     $presentase = round($cfCombine * 100, 2);
+        //     toast('Data berhasil disimpan', 'success')->position('top-right')->autoclose(3000);
+        //     return redirect()->back()->with('presentase', $presentase);
+        // } catch (\Throwable $th) {
+        //     DB::rollBack();
+        //     toast('Terjadi kesalahan', 'error')->position('top-right')->autoclose(3000);
+        //     return redirect()->back();
+        // }
     }
 }

database/migrations/2025_02_06_085614_create_evaluation_details_table.php

@@ -15,7 +15,7 @@ public function up(): void
             $table->id();
             $table->unsignedBigInteger('evaluation_id');
             $table->unsignedBigInteger('indicator_id');
-            $table->float('md_value');
+            $table->float('cf_e');
             $table->timestamps();
         });
 

resources/views/assessment/form.blade.php

@@ -52,15 +52,12 @@
                                         <select name="{{ $indicator->id }}" class="form-control"
                                             id="{{ $indicator->id }}-field" required>
                                             <option value="" selected disabled>Pilih Jawaban</option>
-                                            <option value="0">Tidak</option>
+                                            @foreach ($indicator->rules as $rule)
-                                            <option value="0.2">Tidak Tahu</option>
+                                                <option value="{{ $rule->cf }}">{{ $rule->parameter_type }}</option>
-                                            <option value="0.4">Mungkin</option>
+                                            @endforeach
-                                            <option value="0.6">Kemungkinan Besar</option>
-                                            <option value="0.8">Hampir Pasti</option>
-                                            <option value="1">Pasti</option>
                                         </select>
                                         <div class="invalid-feedback">
-                                            Pilih Jawaban
+                                            Pilih Jawaban {{ $indicator->name }}
                                         </div>
                                     </div>
                                 @endforeach
@@ -79,19 +76,25 @@
                         <form action="">
                             <div class="card-body text-center">
                                 @if (session('presentase'))
-                                    <h1 class="mb-0 mt-2"><span class="counter-value"
-                                            data-target="{{ session('presentase') }}">0</span>%
-                                    </h1>
                                     <p class="text-muted mb-0 mt-2">Presentase kelayakan tanah berdasarkan perhitungan
                                         Certainty
                                         Factor.</p>
+                                    <h1 class="mb-0 mt-2"><span class="counter-value"
+                                            data-target="{{ session('presentase') }}">0</span>%
+                                    </h1>
+                                @endif
+                                @if (session('hasil') && session('land'))
+                                    <p class="text-muted mb-0 mt-2">Hasil perhitungan sistem menetapkan lahan
+                                        <b>"{{ session('land') }}"</b>
+                                        termasuk
+                                        dalam kondisi <b>"{{ session('hasil') }}"</b>
+                                    </p>
                                 @endif
                             </div>
                         </form>
                     </div>
                 </div>
             </div>
-
         </div>
         <!-- container-fluid -->
     </div>
@@ -104,7 +107,6 @@
 
         <!-- listjs init -->
         <script src="assets/js/pages/form-validation.init.js"></script>
-
         <script src="assets/js/pages/customJs/assessment/form.js"></script>
     @endpush
 @endsection