class
FormEvents
To learn more about how form events work check the documentation
entry at {@link https://symfony.com/doc/any/components/form/form_events.html}.
To learn how to dynamically modify forms using events check the cookbook
entry at {@link https://symfony.com/doc/any/cookbook/form/dynamic_form_modification.html}.
Constants
PRE_SUBMIT |
The PRE_SUBMIT event is dispatched at the beginning of the Form::submit() method.
It can be used to:
- Change data from the request, before submitting the data to the form.
- Add or remove form fields, before submitting the data to the form.
|
SUBMIT |
The SUBMIT event is dispatched just before the Form::submit() method
transforms back the normalized data to the model and view data.
It can be used to change data from the normalized representation of the data.
|
POST_SUBMIT |
The FormEvents::POST_SUBMIT event is dispatched after the Form::submit()
once the model and view data have been denormalized.
It can be used to fetch data after denormalization.
|
PRE_SET_DATA |
The FormEvents::PRE_SET_DATA event is dispatched at the beginning of the Form::setData() method.
It can be used to:
- Modify the data given during pre-population;
- Modify a form depending on the pre-populated data (adding or removing fields dynamically).
|
POST_SET_DATA |
The FormEvents::POST_SET_DATA event is dispatched at the end of the Form::setData() method.
This event is mostly here for reading data after having pre-populated the form.
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