8000 Wrong description of normalized data in FormEvents::SUBMIT · Issue #11193 · symfony/symfony-docs · GitHub
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sb-relaxt-at opened this issue Mar 20, 2019 · 9 comments
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Wrong description of normalized data in FormEvents::SUBMIT #11193

sb-relaxt-at opened this issue Mar 20, 2019 · 9 comments
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@sb-relaxt-at
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There seems to be an error in the documentation about form events. Given our limited testing we see the following behaviour in Symfony 4.2:

FormEvents::SUBMIT / Normalized data
This contains the same data as in FormEvents::POST_SET_DATA (so it is yet not updated) - whereas the docs say "Data from the request reverse-transformed from the request using a view transformer" (which indicates that this contains the new value from the request).

FormEvents::POST_SUBMIT / Normalized data
As a subsequent error the description of FormEvents::POST_SUBMIT ("Same as in FormEvents::SUBMIT") is wrong, as it contains the data from the request.
@xabbuh
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xabbuh commented Mar 20, 2019

I'd say this is rather related to your code then as both events will actually receive the submitted data but not the initial data.

@xabbuh xabbuh added the Form label Mar 20, 2019
@sb-relaxt-at
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sb-relaxt-at commented Mar 20, 2019 •
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Whereas the data received via the event is the submitted data, this i 8000 s not true for the data retrieved from the form. We have prepared a minimal working example. If you use this type and submit a change from "initial_data" to "request_data" you will receive the following output:

FormEvents::PRE_SUBMIT

"request_data" // $event->getData()
"initial_data" // $event->getForm()->getData()
"initial_data" // $event->getForm()->getNormData()
"initial_data" // $event->getForm()->getViewData()

FormEvents::SUBMIT

"request_data" // $event->getData()
"initial_data" // $event->getForm()->getData()
"initial_data" // $event->getForm()->getNormData() (!!!)
"initial_data" // $event->getForm()->getViewData()

FormEvents::POSTSUBMIT

"request_data" // $event->getData()
"request_data" // $event->getForm()->getData()
"request_data" // $event->getForm()->getNormData()
"request_data" // $event->getForm()->getViewData()

From my understanding this corresponds to the implementation in Form.php as the norm data of the form is updated just before dispatching FormEvents::POST_SUBMIT.

@xabbuh
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xabbuh commented Mar 20, 2019

That's the expected behaviour. From your initial description I thought you were talking about the getData() method of the event as that's the method being documented here.

@sb-relaxt-at
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Sorry for being ambiguous in this point. I am referring to the following description (screenshot from the docs):

The FormEvents::SUBMIT Event
image

I believe this to document getData(), getNormData() and getViewData() methods from $event->getForm().

@sb-relaxt-at
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@xabbuh Could you be so kind and have another look at this issue? It's about the normalized data in the submit event (example and description in previous comments).

8000
@xabbuh
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xabbuh commented Jun 14, 2019

@sb-relaxt-at This looks indeed confusing. Though I have no idea how we could improve this.

@carsonbot
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Thank you for this issue.
There has not been a lot of activity here for a while. Has this been resolved?

@carsonbot
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Hello? This issue is about to be closed if nobody replies.

@carsonbot carsonbot removed the Stalled label Jan 15, 2021
@alamirault alamirault mentioned this issue Sep 27, 2023
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@alamirault
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alamirault commented Sep 27, 2023 •
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I created PR #18934 which update documentation

@xabbuh xabbuh added the hasPR A Pull Request has already been submitted for this issue. label Sep 29, 2023
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