reconstruction of the project

app/Models/FinalScore.php

@@ -7,8 +7,11 @@ use App\Models\BaseModel;
 class FinalScore extends BaseModel
 {
     protected $table = 'final_score';
-    protected $primaryKey       = 'id';
-    protected $useAutoIncrement = true;
+
+    // CI model didn't specify timestamps behavior; table includes created_at/updated_at.
+    // If you want Laravel to auto-manage them, keep true (recommended).
+    public $timestamps = true;
+
     protected $fillable = [
         'student_id',
         'school_id',
@@ -22,19 +25,43 @@ class FinalScore extends BaseModel
         'updated_at',
         'semester',
     ];
-    public $timestamps = true;
 
-    // Function to get the final exam score for a specific student, semester, and school year
-    public function getFinalExamScore($studentId, $semester, $schoolYear)
+    protected $casts = [
+        'student_id'       => 'integer',
+        'school_id'        => 'integer',
+        'class_section_id' => 'integer',
+        'teacher_id'       => 'integer',
+        'score'            => 'decimal:2', // change to 'integer' if score is whole number
+    ];
+
+    /* Optional relationships */
+    public function student()
     {
-        // Query the final_score table for the final exam score based on student ID, semester, and school year
-        $result = $this->select('score')  // We only need the score
-                       ->where('student_id', $studentId)
-                       ->where('semester', $semester)
-                       ->where('school_year', $schoolYear)
-                       ->first();  // Get the first matching result
+        return $this->belongsTo(Student::class, 'student_id');
+    }
 
-        // Return the score, or null if no result is found
-        return $result ? $result['score'] : null;
+    public function teacher()
+    {
+        return $this->belongsTo(User::class, 'teacher_id');
+    }
+
+    public function classSection()
+    {
+        return $this->belongsTo(ClassSection::class, 'class_section_id');
+    }
+
+    /**
+     * Equivalent of CI getFinalExamScore()
+     */
+    public static function getFinalExamScore(int $studentId, string $semester, string $schoolYear)
+    {
+        $row = static::query()
+            ->select('score')
+            ->where('student_id', $studentId)
+            ->where('semester', $semester)
+            ->where('school_year', $schoolYear)
+            ->first();
+
+        return $row?->score;
     }
 }