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[Form] Deprecate searchAndRenderBlock returning empty string #10387

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[Form] Deprecate searchAndRenderBlock returning empty string #10387

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e73b5f3
Updated a form example to avoid a deprecated feature
javiereguiluz Sep 24, 2018
062bfc1
Fixed a RST syntax issue
javiereguiluz Sep 24, 2018
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8 changes: 7 additions & 1 deletion form/create_custom_field_type.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -122,7 +122,7 @@ link for details), create a ``shipping_widget`` block to handle this:
{% spaceless %}
{% if expanded %}
<ul {{ block('widget_container_attributes') }}>
{% for child in form %}
{% for child in form if not child.rendered %}
<li>
{{ form_widget(child) }}
{{ form_label(child) }}
Expand All @@ -136,6 +136,12 @@ link for details), create a ``shipping_widget`` block to handle this:
{% endspaceless %}
{% endblock %}

.. note::

Symfony 4.2 deprecated calling ``FormRenderer::searchAndRenderBlock`` for
fields that have already been rendered. That's why the previous example
includes the ``... if not child.rendered`` statement.

.. tip::

You can further customize the template used to render each children of the
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