Reverted removal, removed API links instead

Author: wouterj

components/form/form_events.rst

@@ -83,7 +83,7 @@ The ``FormEvents::PRE_SET_DATA`` event is dispatched at the beginning of the
 .. sidebar:: ``FormEvents::PRE_SET_DATA`` in the Form component
 
     The ``collection`` form type relies on the
-    :class:`Symfony\\Component\\Form\\Extension\\Core\\EventListener\\ResizeFormListener`
+    ``Symfony\Component\Form\Extension\Core\EventListener\ResizeFormListener``
     subscriber, listening to the ``FormEvents::PRE_SET_DATA`` event in order
     to reorder the form's fields depending on the data from the pre-populated
     object, by removing and adding all form rows.
@@ -108,6 +108,13 @@ the form.
 | View data       | Normalized data transformed using a view transformer |
 +-----------------+------------------------------------------------------+
 
+.. sidebar:: ``FormEvents::POST_SET_DATA`` in the Form component
+
+    The ``Symfony\Component\Form\Extension\DataCollector\EventListener\DataCollectorListener``
+    class is subscribed to listen to the ``FormEvents::POST_SET_DATA`` event
+    in order to collect information about the forms from the denormalized
+    model and view data.
+
 2) Submitting a Form (``FormEvents::PRE_SUBMIT``, ``FormEvents::SUBMIT`` and ``FormEvents::POST_SUBMIT``)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -145,10 +152,10 @@ It can be used to:
 
 .. sidebar:: ``FormEvents::PRE_SUBMIT`` in the Form component
 
-    The :class:`Symfony\\Component\\Form\\Extension\\Core\\EventListener\\TrimListener`
+    The ``Symfony\Component\Form\Extension\Core\EventListener\TrimListener``
     subscriber subscribes to the ``FormEvents::PRE_SUBMIT`` event in order to
     trim the request's data (for string values).
-    The :class:`Symfony\\Component\\Form\\Extension\\Csrf\\EventListener\\CsrfValidationListener`
+    The ``Symfony\Component\Form\Extension\Csrf\EventListener\CsrfValidationListener``
     subscriber subscribes to the ``FormEvents::PRE_SUBMIT`` event in order to
     validate the CSRF token.
 
@@ -179,7 +186,7 @@ It can be used to change data from the normalized representation of the data.
 
 .. sidebar:: ``FormEvents::SUBMIT`` in the Form component
 
-    The :class:`Symfony\\Component\\Form\\Extension\\Core\\EventListener\\ResizeFormListener`
+    The ``Symfony\Component\Form\Extension\Core\EventListener\ResizeFormListener``
     subscribes to the ``FormEvents::SUBMIT`` event in order to remove the
     fields that need to be removed whenever manipulating a collection of forms
     for which ``allow_delete`` has been enabled.
@@ -211,7 +218,10 @@ It can be used to fetch data after denormalization.
 
 .. sidebar:: ``FormEvents::POST_SUBMIT`` in the Form component
 
-    The :class:`Symfony\\Component\\Form\\Extension\\Validator\\EventListener\\ValidationListener`
+    The ``Symfony\Component\Form\Extension\DataCollector\EventListener\DataCollectorListener``
+    subscribes to the ``FormEvents::POST_SUBMIT`` event in order to collect
+    information about the forms.
+    The ``Symfony\Component\Form\Extension\Validator\EventListener\ValidationListener``
     subscribes to the ``FormEvents::POST_SUBMIT`` event in order to
     automatically validate the denormalized object, and update the normalized
     as well as the view's representations.