Question - success and fail events

[thim81]

Hi Markus,

Another question, where I'm not sure how to handle an automated import process properly.

Situation:

• a process dumps import files in a directory
• a cron job scans the folder and imports them using the ImportEngind command
• when success -> move file to "finished" folder and mail report
• when fail -> move file to "failed" folder and mail report

How can I handle the success and fail events?
Is there a event in the ImportEngine to do this? I have seen the "prepare" event but I'm not sure which are the other events and what data they expose.

[mathielen]

Hi Tim,

You could do this via the finish event. But you have to figure yourself what "fail" and "success" means.

<service id="myimport.endpoint" class="Import\Endpoint\SomeService">
    <tag name="kernel.event_listener" event="data-import.finish.myimport" method="finish"/>
</service>

btw. you could also omit the ".myimport" suffix on the event's property, to have a catch-all method for all imports

And in SomeService:

public function finish(\Mathielen\DataImport\Event\ImportProcessEvent $event)
{
    /** @var $import \Mathielen\ImportEngine\Import\Import */
    $import = $event->getContext();
    $importRun = $import->getRun();

    //i.e. - there was at least one row, but none had been successfully written
    $hasFailed = $importRun->getStatistics()['processed'] > 0 && $importRun->getStatistics()['written'] === 0;

    //do something with the source? - if its a LocalFileStorage...
    $sourceStorage = $import->getSourceStorage;
    if ($sourceStorage instanceof LocalFileStorage && $hasFailed) {
        rename($sourceStorage->getFile(), ...)
    }
}

Did not test the code above, but you will get the idea.

Best regards
Markus

[thim81]

Great!

I'll try to implement something like your example.

I'm thinking of making a small "example project" where I can combine all questions, would you be interested in something to attach it to your project for documentation?

[mathielen]

That would be awesome! I already thought about it the other day but didnt have the time to really get it started. I'm using the lib in a lot of different projects and could extend the demo with more advanced examples. Would be great to enable more developers to really understand what this library is all about.

[thim81]

I'm going to give it try when I have the file-upload and validations working.

I could provide examples:

• configuration for excell
• service to process data
• email processor command

And hopefully:

• manual file-upload
• validation