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php - Symfony 5 $form->isSubmitted() Returning False for File Upload

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Solution:

For form classes derived fromAbstractType, the form is named using when it's built through .

You can confirm this by dumping$form->getName().

Now,$form->handleRequest method as implemented performs a number of checks through the request handler before submitting the form.

1. Checks the method matches that of the form
2. Checks the name of the form is present in the request if the form has a name
3. Checks that at least one of the form fields are filled if the form has no name

Your form is not submitting through the request handlerhandleRequest method because fields in the request are not properly mapped together with your form name.

You have to map the form name in your HTTP POST request in following way:

[ "user_file" =>  [ "file" => <uploaded file> ] ]
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This may prove to not be straight forward in Postman. Therefore I recommend to implement your form as a nameless form instead by overridinggetBlockPrefix to return an empty string.

class UserFileType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        //...
    }

    public function getBlockPrefix()
    {
        return '';
    }

}
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Undefined asked

2023-06-17

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525

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Answer

Solution:

Since this is the first SO thread that comes up for the keywordshandlerequest issubmitted false, I thought I would share what worked for my team on an adjacent issue.

We were getting afalse response when doing aPATCH request. We eventually realized that we were neglecting to passRequest::METHOD_PATCH in themethod option when creatin the form. Putting in a ternary statement that set that value was enough to solve our problem.

I hope this helps someone.

Undefined answered

2023-06-17

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About the technologies asked in this question

PHP

PHP (from the English Hypertext Preprocessor - hypertext preprocessor) is a scripting programming language for developing web applications. Supported by most hosting providers, it is one of the most popular tools for creating dynamic websites. The PHP scripting language has gained wide popularity due to its processing speed, simplicity, cross-platform, functionality and distribution of source codes under its own license.
https://www.php.net/

Symfony

Symfony compares favorably with other PHP frameworks in terms of reliability and maturity. This framework appeared a long time ago, in 2005, that is, it has existed much longer than most of the other tools we are considering. It is popular for its web standards compliance and PHP design patterns.
https://symfony.com/

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