Doctrine\ODM\CouchDB\Mapping\ClassMetadata::validateAndCompleteFieldMapping PHP Method

    protected function validateAndCompleteFieldMapping($mapping)
    {
        if (!isset($mapping['fieldName']) || !$mapping['fieldName']) {
            throw new MappingException("Mapping a property requires to specify the name.");
        }
        if (!isset($mapping['jsonName'])) {
            $mapping['jsonName'] = $mapping['fieldName'];
        }
        if (isset($this->fieldMappings[$mapping['fieldName']]) || isset($this->associationsMappings[$mapping['fieldName']])) {
            throw MappingException::duplicateFieldMapping($this->name, $mapping['fieldName']);
        }
        return $mapping;
    }