first commit

app/Models/SubmissionAnswer.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class SubmissionAnswer extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'submission_id',
+        'checklist_item_id',
+        'value',
+        'unit',
+        'page_reference',
+        'consultant_note',
+        'officer_note',
+        'validation_status',
+    ];
+
+    public function submission(): BelongsTo
+    {
+        return $this->belongsTo(Submission::class);
+    }
+
+    public function item(): BelongsTo
+    {
+        return $this->belongsTo(ChecklistItem::class, 'checklist_item_id');
+    }
+
+    public function numericValue(): ?float
+    {
+        return is_numeric($this->value) ? (float) $this->value : null;
+    }
+}