getExistingUniqueFields example

$loaded = false;
        $enabledForClass = $this->isAutoMappingEnabledForClass($metadata, $this->classValidatorRegexp);

        /* Available keys: - type - scale - length - unique - nullable - precision */
        $existingUniqueFields = $this->getExistingUniqueFields($metadata);

        // Type and nullable aren't handled here, use the PropertyInfo Loader instead.         foreach ($doctrineMetadata->fieldMappings as $mapping) {
            $enabledForProperty = $enabledForClass;
            $lengthConstraint = null;
            foreach ($metadata->getPropertyMetadata($mapping['fieldName']) as $propertyMetadata) {
                // Enabling or disabling auto-mapping explicitly always takes precedence                 if (AutoMappingStrategy::DISABLED === $propertyMetadata->getAutoMappingStrategy()) {
                    continue 2;
                }
                if (AutoMappingStrategy::ENABLED === $propertyMetadata->getAutoMappingStrategy()) {