Symfony2 How to get the selected value from a select field with twig

问题

I have a form that has some bootstrap nav-tabs and I need to repeat in every nav-tabs some info that I have preloaded from a select type field.

I can access to the Id with

{{  dump(form.proveedor.vars.value) }}

But I need the selected label value. How can I do this?

回答1:

Hopefully I get you question correctly.

    {% set label = '' %}
    {% for choice in form.proveedor.vars.choices %}
        {% if choice.value == form.proveedor.vars.value %}
            {% set label = choice.label %}
        {% endif %}
    {% endfor %}

    {{ label }}

回答2:

selected is an attribute, so you can access it with:

{{ dump(form.proveedor.vars.attr["selected"]) }}

Then you can with if sentence check if option has attr equal to selected. If yes then do something, like echo label.

{% if form.proveedor.vars.attr["selected"] == "selected" %}
  {# do something, like echo label #}
{% endif %}

来源：https://stackoverflow.com/questions/26718986/symfony2-how-to-get-the-selected-value-from-a-select-field-with-twig