Yii2: ActiveField::checkbox() - There's no way to force check/uncheck.

[twisted1919]

What steps will reproduce the problem?

Having below code:

<?= $form->field($model, 'categories[]', ['options' => ['class' => 'xform-group']])->checkbox([
    'uncheck'      => null,
    'class'        => 'chk',
    'id'           => 'model-category_id_' . $category->id,
    'label'        => $category->name,
    'labelOptions' => ['class' => 'chk full-width'],
    'template'     => '{input}{beginLabel}{labelTitle}{endLabel}{error}',
    'value'        => $category->id,
    'checked'      => true,
]);?>

What is the expected result?

I expect to see the checkbox checked.

What do you get instead?

The checked option is ignored.

Additional info

| Q | A |
| --- | --- |
| Yii version | 2.0.9 |
| PHP version | 7.0.8 |
| Operating system | CentOS 7 |

[w3lifer]

This method will generate the "checked" tag attribute according to the model attribute value.

Source

This means the following:

$model->myAttribute = true; // or 1, or '1'

echo $form->field($model, 'myAttribute')->checkbox(); // checked ckeckbox

[twisted1919]

@w3lifer - That still does not fix the issue i am referencing. It works fine for attribute directly, but if your attribute is an array then it does not work anymore. In 1.1.x versions you could set the checked attribute manually, this should be the case here too, so that my above use case to work properly.

[cebe]

how should a checkbox work for an array valued attribute?

[cebe]

maybe what you want is activeCheckboxList?

[cebe]

but to fix this issue we could set checked option only if it does not exist already here: https://github.com/yiisoft/yii2/blob/0ac161b69d77db3179cf17388aedd8df35246079/framework/helpers/BaseHtml.php#L723

[desaikalpesh34]

still not working
<?php echo $form->field($model, "is_listable[$contentModel->id]")->checkbox(['label'=>'','class'=>'content_is_listable_class','checked'=>true]); ?>

this must be checked by default render but not working.