php 使用表单生成器 symfony2 创建数组输入字段
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Create array input field with form builder symfony2
提问by markoub
I'm having a trouble with using Form builder in Symfony2. To be exact, I need input field that is html array, but I can't create it with createFormBuilder->add. Here is what I tried:
我在 Symfony2 中使用表单构建器时遇到问题。确切地说，我需要输入字段是 html 数组，但我无法使用 createFormBuilder->add 创建它。这是我尝试过的：
$attributesForm = $this->createFormBuilder()
->add('attribute[0]', 'text') ...
And so on, but I get the following exception:
依此类推，但我收到以下异常：
The name "attribute[0]" contains illegal characters. Names should start with a letter, >digit or underscore and only contain letters, digits, numbers, underscores ("_"), hyphens >("-") and colons (":").
名称“attribute[0]”包含非法字符。名称应以字母、> 数字或下划线开头，并且仅包含字母、数字、数字、下划线 ("_")、连字符 >("-") 和冒号 (":")。
Is there any nice solution or I have to create fields manually?
有什么好的解决方案，或者我必须手动创建字段？
Thanks in advance!
提前致谢！
EDIT: to clarify this further... I want something like this to be generated:
编辑：为了进一步澄清这一点......我想要生成这样的东西：
<div id="msoft_adminbundle_offertype">
<div>Name <input type="text" name="name"></div>
<div>...</div>
<div>Attribute 0 <input type="text" name="attribute[0]"></div>
<div>Attribute 1 <input type="text" name="attribute[1]"></div>
<div>Attribute 3 <input type="text" name="attribute[3]"></div>
<ul>
</ul>
<p>
<button type="submit">Edit</button>
</p>
Help?
帮助？
采纳答案by Mats Rietdijk
You can create an array of input fields using the 'collection'-field type.
您可以使用“集合”字段类型创建输入字段数组。
Documentation about how to use it can be found here:
可以在此处找到有关如何使用它的文档：
If that isn't clear enough or you still have questions I will gladly help you with them.
如果这还不够清楚，或者您仍有疑问，我将很乐意为您提供帮助。
回答by Bernhard Schussek
As the previous answer states, use the collection type or a nested form, where each field corresponds to one entry of the array. And in cases where you can't/don't want to do that, you can do the following:
正如上一个答案所述，使用集合类型或嵌套形式，其中每个字段对应于数组的一个条目。如果您不能/不想这样做，您可以执行以下操作：
->add('attribute_0', 'text', array(
'property_path' => 'attribute[0]',
))
回答by user1156168
Also you can ovveride field in TWIG. Example:
您也可以在 TWIG 中覆盖字段。例子：
{{ form_row(form[field_name],{ 'full_name': 'attribute[' ~ step ~ ']' })}}
Where step is your index.
其中 step 是您的索引。
