我没有什么问题用symfony创建collectiontype ..返回为空Symfony3 CollectionType,数据
我试图跟随多个教程,像 http://symfony.com/doc/current/cookbook/form/form_collections.html或 http://toni.uebernickel.info/2012/03/15/an-example-of-symfony2-collectiontype-form-field-prototype.html ..
但总是相同的结果。
$tags = $form->get('tags')->getData();
返回null。
我能够生成添加/删除链接和索引工作藏汉,但将数据传输到控制器...
我失去了一些重要的或做错了什么?希望有人能帮助我或给小费。
我目前有
任务实体
/**
* @ORM\OneToMany(targetEntity="Tag", mappedBy="task",
cascade={"persist", "remove"})
*/protected $tags;
标签实体
/**
* @ORM\ManyToOne(targetEntity="Task", inversedBy="tags")
* @ORM\JoinColumn(name="tag_id", referencedColumnName="id")
*/
protected $task;
任务类型
->add('tags', CollectionType::class, array(
'entry_type' => TagType::class,
'allow_add' => true,
'allow_delete' => true,
'prototype_name' => '__tag__name__',))
TagType
$builder->add('name', TextType::class, array()));
宏
{% macro widget_prototype(widget, remove_text) %}
{% if widget.vars.prototype is defined %}
{% set form = widget.vars.prototype %}
{% set name = widget.vars.prototype.vars.name %}
{% else %}
{% set form = widget %}
{% set name = widget.vars.full_name %}
{% endif %}
<div data-content="{{ name }}">
<a class="btn-remove" data-related="{{ name }}">{{ remove_text }}</a>
{{ form_widget(form) }}
</div>
{% endmacro %}
枝条
<div id="post_tags" data-prototype="{{ _self.widget_prototype(form.tags, 'Remove tag')|escape }}">
{% for widget in form.tags.children %}
{{ _self.widget_prototype(widget, 'Remove tag') }}
{% endfor %}
</div>
<a class="btn-add" data-target="post_tags">Add tag</a>
JS
jQuery(function($) {
$(document).on('click', '.btn-add[data-target]', function(event) {
var collectionHolder = $('#' + $(this).attr('data-target'));
if (!collectionHolder.attr('data-counter')) {
collectionHolder.attr('data-counter', collectionHolder.children().length);
}
var prototype = collectionHolder.attr('data-prototype');
var form = prototype.replace(/__tag__name__/g, collectionHolder.attr('data-counter'));
collectionHolder.attr('data-counter', Number(collectionHolder.attr('data-counter')) + 1);
collectionHolder.append(form);
event && event.preventDefault();
});
$(document).on('click', '.btn-remove[data-related]', function(event) {
var name = $(this).attr('data-related');
$('*[data-content="'+name+'"]').remove();
event && event.preventDefault();
});
});
和控制器
$form = $this->createForm(TaskType::class, $task);
编辑/ UPDATE
任务实体getter和setter方法的标签
public function __construct()
{
$this->tags = new \Doctrine\Common\Collections\ArrayCollection();
}
public function add(Tag $tag)
{
$this->tags[] = $tag;
return $this;
}
public function removeTag(Tag $tag)
{
$this->tags->removeElement($tag);
}
public function getTags()
{
return $this->tags;
}
控制器:
$task = new Task();
$form = $this->createForm(TaskType::class, $task);
$form->handleRequest($request);
if($form->isValid()){
$tags = $form->get('tags')->getData();
foreach($tags as $tag){
//Here var_dump, echo, print, array_push etc tricks = empty
}
//Also without foreach var_dump = empty
}
请在任务实体中显示您的获取者和设置者(用于标记)。 – galeaspablo
您可以发布整个控制器,或者至少是您试图获取标签数据的相关部分吗? – DonCallisto
已更新的问题,getters和setter是使用php bin/console doctrine生成的:generate:entities - 命令 – Degu