[Flow] Copy an object

[David Sporer]

Thanks, see my other E-Mail I got it :-)
Thank you!


> Am 16.04.2015 um 07:38 schrieb Carsten Bleicker <carsten at bleicker.de>:
> 
> You need to configure the configuration.
> Just take a look at this: http://docs.typo3.org/flow/TYPO3FlowDocumentation/stable/TheDefinitiveGuide/PartIII/PropertyMapping.html#configuring-the-conversion-process
> 
> 
> Mit sonnigem Gruß
> Carsten Bleicker
> 
> ----------------------
> 
> Carsten Bleicker
> Wülfingstraße 1
> 42477 Radevormwald
> 
> E-Mail:	carsten at bleicker.de
> Web:	www.bleicker.de
> Twitter:	@carstenbleicker
> Jabber:	cbleicker at jabber.ccc.de
> Telefon:	+49 (0)171-2690845
> 
>> Am 16.04.2015 um 07:28 schrieb David Sporer <david.sporer at gmail.com>:
>> 
>> Thank you Carsten.
>> I’ve tried your suggestion but it’s not yet working because if I create the connected objects like you suggested it gives me an error:
>> „It is not allowed to map property „0“. You need to use $propertyMappingConfiguration->allowProperties(‚0‘) to enable mapping of this property.“
>> 
>> This happens because the first entry of the array has index 0 which seems to be a problem.
>> 
>> Can you help?
>> 
>> Regards,
>> David
>> 
>>> Am 15.04.2015 um 09:40 schrieb Carsten Bleicker <carsten at bleicker.de>:
>>> 
>>> i think you can not solve this in a generic way.
>>> nobody knows if your application needs to just create a new collection of related objects
>>> or do you need to copy each single collection item also.
>>> 
>>> maybe you could try to get the properties you need for the copy project as a simple array.
>>> and use the converter features to convert this array into a new object.
>>> 
>>> f.e.
>>> 
>>> class CopyService {
>>> 
>>> 	/**
>>> 	* @var \TYPO3\Flow\Property\PropertyMapper
>>> 	* @Flow\Inject
>>> 	*/
>>> 	protected $propertyMapper;
>>> 
>>> 	/**
>>> 	* @var \TYPO3\Flow\Property\PropertyMappingConfigurationBuilder
>>> 	* @Flow\Inject
>>> 	*/
>>> 	protected $propertyMappingConfigurationBuilder;
>>> 
>>> 	/**
>>> 	* @param FooObject $object
>>> 	* @return FooObject
>>> 	*/
>>> 	public function copyFooWithSameBarReferences(FooObject $object){
>>> 		$properties = ObjectAccess::getGettableProperties($object);
>>> 
>>> 		// maybe $object->bars contains collection of Baz
>>> 		// and you want to use the same relations for the new object, just add their identifiers to the new collection
>>> 		$properties['bars'] = [];
>>> 		while($bar = $object->getBars()->current()){
>>> 			$properties['bars'][] = $this->persistenceManager->getIdentifierByObject($bar);
>>> 			$object->getBars()->next();
>>> 		}
>>> 
>>> 		// Configure what is allowed to map from $properties etc.
>>> 		// Note: its incomplete at this point
>>> 		$configuration = $this->propertyMappingConfigurationBuilder->build();
>>> 		$configuration->allowAllProperties();
>>> 
>>> 		return $this->propertyMapper->convert($properties, FooObject::class, $configuration);
>>> 	}
>>> 
>>> 	/**
>>> 	* @param FooObject $object
>>> 	* @return FooObject
>>> 	*/
>>> 	public function copyFooWithNewBarReferences(FooObject $object){
>>> 		$properties = ObjectAccess::getGettableProperties($object);
>>> 
>>> 		// maybe $object->bars contains collection of Baz
>>> 		// and you want to use the same relations for the new object, just add their identifiers to the new collection
>>> 		$properties['bars'] = [];
>>> 		while($bar = $object->getBars()->current()){
>>> 			$properties['bars'][] = ObjectAccess::getGettableProperties($bar);
>>> 			$object->getBars()->next();
>>> 		}
>>> 
>>> 		// Configure what is allowed to map from $properties etc.
>>> 		// Note: its incomplete at this point
>>> 		$configuration = $this->propertyMappingConfigurationBuilder->build();
>>> 		$configuration->allowAllProperties();
>>> 
>>> 		return $this->propertyMapper->convert($properties, FooObject::class, $configuration);
>>> 	}
>>> 
>>> }
>>> 
>>> 
>>> 
>>> 
>>>> Am 15.04.2015 um 08:45 schrieb David Sporer <david.sporer at gmail.com>:
>>>> 
>>>> Hi,
>>>> 
>>>> I have a fairly complex model and I want to create a copyAction in my controller that basically duplicates the object.
>>>> My first approach was to simply clone the original object with clone().
>>>> The problem with this however is that the references to resources and other collections remain the same.
>>>> If I clear collections of the copied resource the collection of the original resource is also cleared which I don’t want.
>>>> Same thing for resources. Deleting the original object fails because the resource is referenced by the new object also.
>>>> 
>>>> Do you have any best practices for doing such a thing?
>>>> One approach that I guess would work is creating the copied object from scratch and also manually duplicating all connected objects but that wouldn’t be that easy and I guess there must be an easier way.
>>>> 
>>>> Thanks,
>>>> David
>>>> _______________________________________________
>>>> Flow mailing list
>>>> Flow at lists.typo3.org
>>>> http://lists.typo3.org/cgi-bin/mailman/listinfo/flow
>>> 
>>> _______________________________________________
>>> Flow mailing list
>>> Flow at lists.typo3.org
>>> http://lists.typo3.org/cgi-bin/mailman/listinfo/flow
>> 
>> _______________________________________________
>> Flow mailing list
>> Flow at lists.typo3.org
>> http://lists.typo3.org/cgi-bin/mailman/listinfo/flow
> 
> _______________________________________________
> Flow mailing list
> Flow at lists.typo3.org
> http://lists.typo3.org/cgi-bin/mailman/listinfo/flow