Inuit sync of tax, product accounting, accounts and invoices

app/Models/Tax.php

@@ -5,8 +5,12 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Model;
 
+use App\Traits\ProviderRef;
+
 class Tax extends Model
 {
+	use ProviderRef;
+
 	public $timestamps = FALSE;
 
 	/* RELATIONS */
@@ -16,6 +20,12 @@ class Tax extends Model
 		return $this->belongsTo(Country::class);
 	}
 
+	public function providers()
+	{
+		return $this->belongsToMany(ProviderOauth::class,'tax__provider')
+			->withPivot('ref','synctoken','created_at','updated_at');
+	}
+
 	/* METHODS */
 
 	/**