geocoder-php / geocoder-php/Geocoder

Bug when use chain and GeoIp2 at first position with cache

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#936 3 comments 0 reactions 0 assignees View on GitHub

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question
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PHP
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Description

GeoIp2 return empty collection and save it in cache after that next providers(custom) load from cache empty collection instead of using his code

  $result = json_decode($this->executeQuery($address));

        if (null === $result) {
            return new AddressCollection([]);
        }

$result = json_decode(''); //NULL

private function executeQuery(string $address): string
    {
        $uri = sprintf('file://geoip?%s', $address);

        try {
            $result = $this->adapter->getContent($uri);
        } catch (AddressNotFoundException $e) {
            return '';
        } catch (AuthenticationException $e) {
            throw new InvalidCredentials(
                $e->getMessage(),
                $e->getCode(),
                $e
            );
        } catch (OutOfQueriesException $e) {
            throw new QuotaExceeded(
                $e->getMessage(),
                $e->getCode(),
                $e
            );
        }

        return $result;
    }

I think there should not be return '';, but there should be fatal

 public function geocodeQuery(GeocodeQuery $query): Collection
    {
        foreach ($this->providers as $provider) {
            try {
                $result = $provider->geocodeQuery($query);
                if (!$result->isEmpty()) {
                    return $result;
                }
            } catch (\Throwable $e) {
                $this->log(
                    'alert',
                    sprintf('Provider "%s" could geocode address: "%s".', $provider->getName(), $query->getText()),
                    ['exception' => $e]
                );
            }
        }

        return new AddressCollection();
    }

\Geocoder\Provider\Chain\Chain::geocodeQuery now always return empty collectioon \Geocoder\Model\AddressCollection();

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the GeoIp2 provider's executeQuery and geocodeQuery methods, then trace how Chain::geocodeQuery handles an empty collection from the first provider and cache reads for later providers. Reproduce a chain with GeoIp2 first and a custom provider second; done means an empty GeoIp2 response no longer prevents the later provider from being used, with the intended error behavior verified.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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