FactoryGirl\Provider\Doctrine\EntityDef::readFieldDefs PHP Method

    private function readFieldDefs(array $params)
    {
        foreach ($params as $key => $def) {
            if ($this->metadata->hasField($key) || $this->metadata->hasAssociation($key)) {
                $this->fieldDefs[$key] = $this->normalizeFieldDef($def);
            } else {
                throw new Exception('No such field in ' . $this->entityType . ': ' . $key);
            }
        }
    }