在Symfony2中,是否有一种方法可以将更多字段从实体映射到从基于实体的表单生成的选择下拉列表的选项标签中?
我目前有类似的东西:
$builder->add('creditcard', 'entity',
array( 'label' => 'Credit Card',
'required' => true,
'expanded' => false,
'class' => 'Acme\Bundle\Entity\CreditCard',
'property' => 'display_text',
'multiple' => false,
'query_builder' => function(\Acme\Bundle\Repository\CreditCardRepository $er) {
return $er->createQueryBuilder('b');
},
'mapped' => false,
));
这工作正常,但我想生成如下内容:
<option value="id" string_mapped_from_field1="value_of_field1">display_text</option>
谢谢!
好吧,如果有人带着相同的问题来到这里,这就是我最后要做的事情:
我创建了一个自定义字段类型(请参阅http://symfony.com/doc/current/cookbook/form/create_custom_field_type.html)
由于最后我们将成为一个实体字段,因此您需要添加:
public function getParent() {
return 'entity';
}
在表单上使用它时:
$builder->add('creditcard', new CreditCardFieldType(),
array( 'label' => 'Credit Card',
'required' => true,
'expanded' => false,
'class' => 'Acme\Bundle\Entity\CreditCardCharge',
'property' => 'object',
'multiple' => false,
'query_builder' => function(\Acme\Bundle\Repository\CreditCardChargeRepository $er) {
return $er->createQueryBuilder('b');
},
'mapped' => false,
));
object是添加到包含整个对象的实体的新属性,因此我添加到了实体:
public function getObject()
{
return $this;
}
这样,我们可以从模板访问对象,我们只需要为自己的自定义字段类型创建一个新模板:
{% block creditcard_widget %}
{% 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_creditcard_widget_options') }}
{% if choices|length > 0 and separator is not none %}
<option disabled="disabled">{{ separator }}</option>
{% endif %}
{% endif %}
{% set options = choices %}
{{ block('choice_creditcard_widget_options') }}
</select>
{% endspaceless %}
{% endblock creditcard_widget %}
{% block choice_creditcard_widget_options %}
{% spaceless %}
{% for group_label, choice in options %}
{% if choice is iterable %}
<optgroup label="{{ group_label|trans({}, translation_domain) }}">
{% set options = choice %}
{{ block('choice_creditcard_widget_options') }}
</optgroup>
{% else %}
<option value="{{ choice.data.creditcard }}" charge="{{ choice.data.charge }}" {% if choice is selectedchoice(data.creditcard_charges_id) %} selected="selected"{% endif %}>{{ choice.data.text|trans({}, translation_domain) }}</option>
{% endif %}
{% endfor %}
{% endspaceless %}
{% endblock choice_creditcard_widget_options %}
并在您的config.yml中将其注册为树枝:
twig:
form:
resources:
- 'AcmeBundle:Form:creditcardfield.html.twig'
不确定这是最好的解决方案,但可以解决问题。希望能帮助到你。
本文收集自互联网,转载请注明来源。
如有侵权,请联系[email protected] 删除。
我来说两句