form_attr = true at form level does not work for fields rendered after form_end #48794
Description
Symfony version(s) affected
6.1.7
Description
Hi guys, thanks for the great work you do on Symfony! Let me show you what brings me here.
My goal is to have a button outside the <form> and </form> tags (for various reasons I would not like to discuss here), html5 allows this if controls outside the tags point to a form with their form attribute. According to the documentation, there is an option called form_attr that You can also set this to true on a root form to automatically set the "form" attribute on all its children.
Nice! I tried, and it failed. The 'form_attr' => true option was set on root form, but it does not give a form="name" attribute for children rendered after the form_end.
EditorshipType:
$builder
->add('entity', EntityType::class, blah blah blah)
->add('request', SubmitType::class, blah blah blah); <-- Button will be outside the form tags
Controller:
$formName = 'form1';
// Set the name
$form = $formFactory->createNamed($formName, EditorshipType::class, $editorshipDecision, [
'attr' => [
// Set the id
'id' => $formName,
],
// Command sub fields to have form = name
'form_attr' => true,
]);
Template:
<tr>
<td>{{ form_start(form) }}{{ form_row(form.entity) }}{{ form_end(form, {'render_rest': false}) }}</td>
<td>{{ form_row(form.request) }}</td>
</tr>
Resulting html:
<tr>
<td>
<form id="form1" name="form1" method="post">
<select id="form1_entity" name="form1[entity]" form="form1" bla bla bla>
<option value="">Choose a seminar...</option>
<option value="3">Blah blah blah</option>
</select>
</form>
</td>
<td>
<button type="submit" id="form1_request" name="form1[request]">Request</button>
</td>
</tr>
Notice my button rendered after the </form> tag does not have the form="form1" attribute. The select rendered between <form> and </form> does.
Of course, as a workaround, I can put the form attribute on the button by its field options, so it's not blocking:
EditorshipType:
$builder
->add('entity', EntityType::class, blah blah blah)
->add('request', SubmitType::class, [
'attr' => ['form' => $builder->getName()],
]);
How to reproduce
See the code above, I made it easy to read.
Possible Solution
No response
Additional Context
No response