Add paypal payments

app/Models/Checkout.php

@@ -13,4 +13,31 @@ class Checkout extends Model
 	{
 		return $this->hasMany(Payment::class);
 	}
+
+	/** SCOPES **/
+
+	/**
+	 * Search for a record
+	 *
+	 * @param        $query
+	 * @param string $term
+	 * @return
+	 */
+	public function scopeActive($query)
+	{
+		return $query->where('active',TRUE);
+	}
+
+	/** FUNCTIONS **/
+
+	public function fee(float $amt,int $items=1): float
+	{
+		if (! $this->fee_passon OR ! $items)
+			return 0;
+
+		$fee = $amt+$this->fee_fixed/$items;
+		$fee /= (1-$this->fee_variable);
+
+		return round($fee-$amt,2);
+	}
 }