我的EntryAdmin表单需要三个或四个额外字段用于用户定义的不同广告系列，并通过实体CampaignProperties处理，然后在选中相应的单选按钮时通过动态附加动态附加。
我有一个EntryProperty表，然后应该存储entry_id，property_id和value。
我的目的是在Entry实体的postPersist事件中保存额外的字段。
我已经扩展了edit.html.twig，它可以在表单上附加字段，但是现在我因为额外字段的持久性而被卡住了错误'此表单不应包含额外的字段。'< /强>
这是代码： EntryAdmin表单部分
$formMapper
->add('channel', 'choice', array('attr' => array('class' => 'channels'), 'expanded' => true, 'choices' => $this->getConfigurationPool()->getContainer()->get('doctrine')->getRepository('AcmeMyBundle:Entry')->allowedChannels($security_context))) /* checks user-allowed campaigns to load extra campaign fields on check */
->add('name')
->add('tel', null, array('label' => 'Telephone'))
->add('email')
->add('deviceType', 'choice', array('expanded' => true, 'choices' => array('Smartphone', 'Feature phone')))
->add('createdAt', 'sonata_type_datetime_picker', array('label' => 'Posted on'))
->with('Items for sale')
->add('listings','sonata_type_collection', array(
// Prevents the "Delete" option from being displayed
'type_options' => array('delete' => false)
), array(
'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position',
))
->end()
->with('Photos')
->add('images','sonata_type_collection', array(
// Prevents the "Delete" option from being displayed
'type_options' => array('delete' => false)
), array(
'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position',
))
->end()
;
通过ajax加载额外字段twig。
{% block fields %}
{% if(channel.properties) %}
<div class="box box-success">
<div class="box-header">
<h4 class="box-title">
Additional information
</h4>
</div>
<div class="box-body">
<div class="sonata-ba-collapsed-fields">
{% for property in channel.properties %}
<div id="sonata-ba-field-container-{{ uniqId }}_{{ property.name }}" class="form-group">
<label for="{{ uniqId }}['properties'][{{ property.id }}]" class="control-label required">
{{ property.label }}
</label>
<div class=" sonata-ba-field sonata-ba-field-standard-natural">
{% if(property.type == 'Text') and (property.length < 255) or (property.type == 'Number') %}
<input type="text" class=" form-control" maxlength="255" required="required" name="{{ uniqId }}['properties'][{{ property.id }}]" id="{{ uniqId }}_{{ property.name }}">
{% endif %}
{% if(property.type == 'Text') and (property.length > 255) %}
<textarea class="form-control" required="required" name="{{ uniqId }}['properties'][{{ property.id }}]" id="{{ uniqId }}_{{ property.name }}"></textarea>
{% endif %}
{% if(property.type == 'Boolean') %}
<ul class="list-unstyled channels" id="{{ uniqId}}_properties_{{ property.name }}">
<li>
<label class="">
<div class="iradio_minimal" style="position: relative;" aria-checked="false" aria-disabled="false">
<input type="radio" value="0" required="required" name="{{ uniqId }}['properties'][{{ property.id }}]" id="{{ uniqId}}_properties_{{ property.name }}_0" style="position: absolute; opacity: 0;">
<ins class="iCheck-helper" style="position: absolute; top: 0%; left: 0%; display: block; width: 100%; height: 100%; margin: 0px; padding: 0px; background: none repeat scroll 0% 0% rgb(255, 255, 255); border: 0px none; opacity: 0;"></ins>
</div>
<span>No </span>
</label>
</li>
<li>
<label class="">
<div class="iradio_minimal" style="position: relative;" aria-checked="false" aria-disabled="false">
<input type="radio" value="1" required="required" name="{{ uniqId }}['properties'][{{ property.id }}]" id="{{ uniqId}}_properties_{{ property.name }}_1" style="position: absolute; opacity: 0;">
<ins class="iCheck-helper" style="position: absolute; top: 0%; left: 0%; display: block; width: 100%; height: 100%; margin: 0px; padding: 0px; background: none repeat scroll 0% 0% rgb(255, 255, 255); border: 0px none; opacity: 0;"></ins>
</div>
<span>Yes </span>
</label>
</li>
</ul>
{% endif %}
{% if(property.type == 'Date') %}
<div class="form-group">
<div class='input-group date' id='{{ uniqId}}_properties_{{ property.name }}_div' data-date-format="YYYY-MM-DD HH:mm">
<input type="text" class="sonata-medium-date form-control" name="{{ uniqId }}['properties'][{{ property.id }}]" id="{{ uniqId}}_properties_{{ property.name }}" />
<span class="input-group-addon"><span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
<script type="text/javascript">
jQuery(function ($) {
$('#{{ uniqId}}_properties_{{ property.name }}_div').datetimepicker();
});
</script>
{% endif %}
</div>
</div>
{% endfor %}
</div>
</div>
</div>
{% endif %}
{% endblock %}
任何有想法如何解决这个问题的人？
答案 0 :(得分：1)
我认为这涵盖了您的问题
$builder->add('tags', 'collection', array(
'type' => new TagType(),
'allow_add' => true, <-- This Bit
));
通过更新后的Symfony 3.1 文档，您可能需要这样的内容：
$builder->add('tags', CollectionType::class, array(
'entry_type' => TagType::class,
'allow_add' => true,
));