first commit

app/Models/ChecklistItem.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class ChecklistItem extends Model
+{
+    use HasFactory;
+
+    public const INPUT_TYPES = [
+        'number' => 'Nombor',
+        'text' => 'Teks',
+        'textarea' => 'Teks Panjang',
+        'select' => 'Senarai Pilihan',
+        'checkbox' => 'Kotak Semak',
+        'file_reference' => 'Rujukan Fail',
+        'calculated' => 'Dikira Automatik',
+    ];
+
+    protected $fillable = [
+        'checklist_section_id',
+        'checklist_scope_id',
+        'code',
+        'formula_token',
+        'label',
+        'description',
+        'input_type',
+        'options',
+        'unit',
+        'is_required',
+        'is_calculated',
+        'formula',
+        'order',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'options' => 'array',
+            'is_required' => 'boolean',
+            'is_calculated' => 'boolean',
+            'order' => 'integer',
+        ];
+    }
+
+    public function section(): BelongsTo
+    {
+        return $this->belongsTo(ChecklistSection::class, 'checklist_section_id');
+    }
+
+    public function scope(): BelongsTo
+    {
+        return $this->belongsTo(ChecklistScope::class, 'checklist_scope_id');
+    }
+
+    public function answers(): HasMany
+    {
+        return $this->hasMany(SubmissionAnswer::class);
+    }
+
+    public function isNumeric(): bool
+    {
+        return in_array($this->input_type, ['number', 'calculated'], true);
+    }
+}