Added prune logic for transaction models

app/Models/MfmReading.php

@@ -2,39 +2,42 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Prunable;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
 class MfmReading extends Model
 {
+    use Prunable;
     use SoftDeletes;
 
     protected $fillable = [
         'plant_id',
         'mfm_meter_id',
-		'apparent_energy_received',
+        'apparent_energy_received',
         'reactive_energy_received',
         'active_energy_received',
         'active_power_r',
-		'active_power_y',
-		'active_power_b',
+        'active_power_y',
+        'active_power_b',
         'active_power_total',
-		'voltage_ry',
-		'voltage_yb',
+        'voltage_ry',
+        'voltage_yb',
         'voltage_br',
         'current_r',
-		'current_y',
+        'current_y',
         'current_b',
         'current_n',
-		'voltage_r_n',
-		'voltage_y_n',
+        'voltage_r_n',
+        'voltage_y_n',
         'voltage_b_n',
-		'frequency',
-		'power_factor_r',
+        'frequency',
+        'power_factor_r',
         'power_factor_y',
         'power_factor_b',
-		'power_factor_total',
+        'power_factor_total',
         'created_at',
         'updated_at',
     ];
@@ -48,4 +51,9 @@ class MfmReading extends Model
     {
         return $this->belongsTo(MfmMeter::class, 'mfm_meter_id');
     }
+
+    public function prunable(): Builder
+    {
+        return static::where('created_at', '<=', now()->subMonthsNoOverflow(6));
+    }
 }