ZF\Apigility\Admin\Model\InputFilterModel::getInputFilter PHP Method

    protected function getInputFilter($module, $controller, $inputFilterName = null)
    {
        $configModule = $this->configFactory->factory($module);
        $config = $configModule->fetch(true);
        $collectionType = $this->getCollectionType($controller);
        $entityType = $this->getEntityType($controller);
        if (!isset($config['zf-content-validation'][$controller]['input_filter'])) {
            return new $collectionType();
        }
        $validator = $config['zf-content-validation'][$controller]['input_filter'];
        if (!isset($config['input_filter_specs']) || !is_array($config['input_filter_specs']) || !array_key_exists($validator, $config['input_filter_specs'])) {
            return false;
        }
        if ($inputFilterName && $inputFilterName !== $validator) {
            return false;
        }
        // Retrieving the input filter by name
        if ($inputFilterName && $inputFilterName === $validator) {
            $inputFilter = new $entityType($config['input_filter_specs'][$inputFilterName]);
            $inputFilter['input_filter_name'] = $inputFilterName;
            return $inputFilter;
        }
        // Retrieving a collection
        $collection = new $collectionType();
        $inputFilter = new $entityType($config['input_filter_specs'][$validator]);
        $inputFilter['input_filter_name'] = $validator;
        $collection->enqueue($inputFilter);
        return $collection;
    }