reconstruction of the project

app/Models/Stats.php

@@ -7,7 +7,13 @@ use App\Models\BaseModel;
 class Stats extends BaseModel
 {
     protected $table = 'stats';
-    protected $primaryKey = 'id';
+
+    /**
+     * If your stats table has created_at/updated_at, keep true (default).
+     * If it doesn't, set to false.
+     */
+    public $timestamps = false;
+
     protected $fillable = [
         'students',
         'teachers',
@@ -15,8 +21,44 @@ class Stats extends BaseModel
         'users',
     ];
 
-    public function getStats()
+    protected $casts = [
+        'students' => 'integer',
+        'teachers' => 'integer',
+        'admins'   => 'integer',
+        'users'    => 'integer',
+    ];
+
+    /**
+     * CI-compatible: getStats()
+     * Returns all rows.
+     */
+    public static function getStats()
     {
-        return $this->findAll();
+        return static::query()->get();
+    }
+
+    /**
+     * Enhancement: if you treat stats as a single row (common),
+     * this returns the first row, creating it with zeros if missing.
+     */
+    public static function singleton(): self
+    {
+        return static::query()->first() ?? static::query()->create([
+            'students' => 0,
+            'teachers' => 0,
+            'admins'   => 0,
+            'users'    => 0,
+        ]);
+    }
+
+    /**
+     * Enhancement: update singleton stats safely.
+     */
+    public static function updateSingleton(array $data): self
+    {
+        $row = static::singleton();
+        $row->fill($data);
+        $row->save();
+        return $row;
     }
 }