Symfony 2 - Checkbox with default Value unless Data From Database

Question

I have a check box that Renders correctly . If there is no data from the database I want the check box to be checked by default.

If I set "data" = True it displays the checkbox checked. Now if I get the data from the database it won't override the checkbox to the boolean value of false. If I remove the data" => true then I am able to get the correct checkbox from the database but I am not able to set the default checkbox.

    public function buildForm(FormBuilderInterface $builder, array $options)
{

    $builder
        ->add('isFieldFirstname', 'checkbox', array(
        'label'    => 'Show First Name',
        'required' => false,
            "data" => true,
            )
                )

Just to recap

Database - No record found - show default checkbox as checked
If record found use value from database ex isFieldFirstname = false checkbox unchecked

Try to set the value as true in the entity __construct() function. — A.L
– A.L, Commented Apr 24, 2015 at 20:13
@A.L thanks for your response. I tried that but it seems that data option is called last. — JimmyB
– JimmyB, Commented Apr 24, 2015 at 20:26
If __construct() set the default value of isFieldFirstname as true and you pass it to the form, you shouldn't need to use the data attribute. — A.L
– A.L, Commented Apr 24, 2015 at 20:29

Aitch · Accepted Answer · 2015-04-26 13:57:27Z

1

You implement a buildForm method to describe the structure of the form, not the values. The values are from a plain array or a data object. Symfony uses the DataAccess component to map them.

drop "data" option in your checkbox
call your checkbox "fieldFirstname" (no "is")

// MyFormType.php

public function buildForm(FormBuilderInterface $builder, array $options) {
  $builder
    ->add(
      'fieldFirstname',
      'checkbox',
      [
        'label'    => 'Show First Name',
        'required' => false
      ]
    );
}

create a data class

// MyFormData.php

class MyFormData {
  private $fieldFirstname;

  public function isFieldFirstname() {
    return $this->fieldFirstname;
  }

  public function setFieldFirstname($fieldFirstname) {
    $this->fieldFirstname = $fieldFirstname;
  }
}

create your action

// MyController.php

// ...
public function myAction() {
  $data = new MyFormData();
  $data->setFieldFirstname(
    ! $myService->isDataInDatabase()
  );

  $form = $this->createForm(
    new MyFormType(),
    $data
  );

  // ... 
}

Didn't test it right now, but should work.

answered Apr 26, 2015 at 13:57

Aitch

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2 Comments

JimmyB Over a year ago

Thank you i misunderstood the usage of "is" thanks for the detail clarification.

Aitch Over a year ago

oh okay, if that was the problem, than have a look at the DataAccess component which is trying to access public $x, isX(), getX(), hasX() for reading x and public $x, setX($x) for writing x for objects. For arrays it's just the the key $arr['x'] I think and also all methods of ArrayAccess (maybe I forgot some).

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