private function assertRelationshipsExist(TableNode $table, $type)
 {
     $relations = $this->aujaConfigurator->getRelations();
     foreach ($table->getHash() as $relationHash) {
         $leftModelName = $relationHash['left'];
         $rightModelName = $relationHash['right'];
         if (!isset($relations[$leftModelName])) {
             throw new Exception(sprintf('No relations for model %s', $leftModelName));
         }
         $modelRelations = $this->aujaConfigurator->getRelationsForModel($this->aujaConfigurator->getModel($leftModelName));
         $relationshipExists = false;
         foreach ($modelRelations as $relation) {
             if ($relation->getType() == $type && $relation->getRight()->getName() == $rightModelName) {
                 $relationshipExists = true;
             }
         }
         if (!$relationshipExists) {
             throw new Exception(sprintf('There is no %s relationship between %s and %s.', $type, $leftModelName, $rightModelName));
         }
     }
 }