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Explain how to get all flash messages #7432

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Explain how to get all flash messages
javiereguiluz Jan 31, 2017
51dfdf9
Simplified the Twig code with the Session helpers
javiereguiluz Jan 31, 2017
380d703
Minor change
javiereguiluz Feb 1, 2017
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30 changes: 26 additions & 4 deletions controller.rst
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Expand Up @@ -188,8 +188,8 @@ For more information, see the :doc:`Routing chapter </routing>`.

.. caution::

The ``redirect()`` method does not check its destination in any way. If you
redirect to some URL provided by the end-users, your application may be open
The ``redirect()`` method does not check its destination in any way. If you
redirect to some URL provided by the end-users, your application may be open
to the `unvalidated redirects security vulnerability`_.


Expand Down Expand Up @@ -425,21 +425,43 @@ read any flash messages from the session:
.. code-block:: html+twig

{# app/Resources/views/base.html.twig #}
{% for flash_message in app.session.flashBag.get('notice') %}

{# you can read and display just one flash message type... #}
{% for flash_message in app.session.flash('notice') %}
<div class="flash-notice">
{{ flash_message }}
</div>
{% endfor %}

{# ...or you can read and display every flash message available #}
{% for type, flash_messages in app.session.flashes %}
{% for flash_message in flash_messages %}
<div class="flash-{{ type }}">
{{ flash_message }}
</div>
{% endif %}
{% endfor %}

.. code-block:: html+php

<!-- app/Resources/views/base.html.php -->

// you can read and display just one flash message type...
<?php foreach ($view['session']->getFlash('notice') as $message): ?>
<div class="flash-notice">
<?php echo "<div class='flash-error'>$message</div>" ?>
<?php echo $message ?>
</div>
<?php endforeach ?>

// ...or you can read and display every flash message available
<?php foreach ($view['session']->getFlashes() as $type => $flash_messages): ?>
<?php foreach ($flash_messages as $flash_message): ?>
<div class="flash-<?php echo $type ?>">
<?php echo $message ?>
</div>
<?php endforeach ?>
<?php endforeach ?>

.. note::

It's common to use ``notice``, ``warning`` and ``error`` as the keys of the
Expand Down