reconstruction of the project

app/Models/Competition.php

@@ -2,13 +2,19 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
+use App\Models\BaseModel;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
-class Competition extends Model
+class Competition extends BaseModel
 {
-    use SoftDeletes;
     protected $table = 'competitions';
+
+    // ✅ CI: useSoftDeletes = true
+    use SoftDeletes;
+
+    // ✅ CI: useTimestamps = true (created_at/updated_at) + deleted_at for soft deletes
+    public $timestamps = true;
+
     protected $fillable = [
         'title',
         'semester',
@@ -28,5 +34,43 @@ class Competition extends Model
         'locked_at',
         'locked_by',
     ];
-    public $timestamps = true;
+
+    protected $casts = [
+        'class_section_id' => 'integer',
+        'winners_count'    => 'integer',
+        'prize_per_point'  => 'decimal:2', // adjust precision if needed
+
+        'is_published'     => 'boolean',
+        'is_locked'        => 'boolean',
+
+        // change to 'date' if your columns are DATE (not DATETIME)
+        'start_date'       => 'date',
+        'end_date'         => 'date',
+        'published_at'     => 'datetime',
+        'locked_at'        => 'datetime',
+
+        'locked_by'        => 'integer',
+        'created_by'       => 'integer',
+    ];
+
+    /* Optional relationships */
+    public function classSection()
+    {
+        return $this->belongsTo(ClassSection::class, 'class_section_id');
+    }
+
+    public function lockedByUser()
+    {
+        return $this->belongsTo(User::class, 'locked_by');
+    }
+
+    public function createdByUser()
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    public function classWinners()
+    {
+        return $this->hasMany(CompetitionClassWinner::class, 'competition_id');
+    }
 }