[Flow] Persistence problems after implementing an image field with TYPO3.Media

[Felix Rupp]

Hi Christian,

thank you for this hint! You are my hero! 

I'm still fixing my errors, but it seems to work with manually persisting the changes. Do you have a personal recommendation for deleting objects from the database? Should this be done by using a POST-request or is manually triggering the persistAll() a common workflow?


Thank your very much!


Best regards,

Felix


> The thing is, that the persistence wont be triggered during GET requests.
> 
> You need to inject the persistance manager and call persistAll to perist 
> you data in a GET request.
> 
> Here a piece from the Flow Documentation:
> 
> 
>       Safe request methods are read-only
> 
> According to the HTTP 1.1 specification, so called "safe request 
> methods" (usually GET or HEAD requests) should not change your data on 
> the server side and should be considered read-only. If you need to add, 
> modify or remove data, you should use the respective request methods 
> (POST, PUT, DELETE and PATCH).
> 
> Flow supports this principle because it helps making your application 
> more secure and perform better. In practice that means for any Flow 
> application: if the current request is a "safe request method", the 
> persistence framework will NOT trigger persistAll() at the end of the 
> script run.
> 
> If you need to store some data during a safe request (for example, 
> logging some data for your analytics), you are still free to call 
> PersistenceManager->persistAll() manually.