答案 0 :(得分:0)
生日表单类型使用块choice_widget进行渲染。
{% block choice_widget %}
{% spaceless %}
{% if expanded %}
{{ block('choice_widget_expanded') }}
{% else %}
{{ block('choice_widget_collapsed') }}
{% endif %}
{% endspaceless %}
{% endblock choice_widget %}
最后,执行输出的块名为choice_widget_collapsed。只需在那里进行更改。
{% block choice_widget_collapsed %}
{% spaceless %}
{% if required and empty_value is none and not empty_value_in_choices %}
{% set required = false %}
{% endif %}
<select {{ block('widget_attributes') }}{% if multiple %} multiple="multiple"{% endif %}>
{% if empty_value is not none %}
<option value=""{% if required and value is empty %} selected="selected"{% endif %}>{{ empty_value|trans({}, translation_domain) }}</option>
{% endif %}
{% if preferred_choices|length > 0 %}
{% set options = preferred_choices %}
{{ block('choice_widget_options') }}
{% if choices|length > 0 and separator is not none %}
<option disabled="disabled">{{ separator }}</option>
{% endif %}
{% endif %}
{% set options = choices %}
{{ block('choice_widget_options') }}
</select>
{% endspaceless %}
{% endblock choice_widget_collapsed %}