choices type field not populating value

[sitapraj]

In $this->add('fields', 'choice', [
'choices' => ['choice1' => 'choice1', 'choice2' => 'choice2'],
'empty_value' => 'Select',
'multiple' => TRUE,
'attr' => ['class' => 'multiple-input'],
])
value is not populating through model,passing value as $model->fields = ['choice1']
$form = \FormBuilder::create('Form', [
'method' => 'PUT',
'url' => route('update', $id),
'model' => $model
]);

[kristijanhusak]

When you pass the model, you have to manually assign choices:

<?php
    $this->add('fields', 'choice', [
        'choices' => $this->model->fields,
        ...
    ]);

[sitapraj]

No,No,,,, how to populate the values that are saved for editing

[kristijanhusak]

I don't understand your question. When the form is submitted, you should receive selected data in Input::get('fields'), and you handle them after.

[sitapraj]

ya.. I got that but in edit form how to populate selected values in 'choice' type using model.Means,if I want to pass default value as $model->id = 1,it displays in the form but $model->fields = ['choice1'], not displaying in the form,not showing selected choice,choice1

[kristijanhusak]

I'm not 100% sure, but i think that Laravel's form builder does not support automatically checking multiple values. You can try to put like this:

<?php
    $this->add('fields', 'choice', [
        'choices' => $this->model->getAllPossibleFields(),
       'selected' => $this->model->fields
    ]);

selected property holds the keys of all selected values, so if you have ['choice1 => 'some choice', 'choice2' => 'some other choice'], if you want them to both be selected you put:

<?php
'selected' => ['choice1', 'choice2']

[sitapraj]

Thank You,,, what I need was this 'selected' => $this->model->fields

[kristijanhusak]

Great. It should be automatic, but i think that works only when there is one selection.

[sitapraj]

it works for multiple selection too...

[sitapraj]

But, how this 'selected' => $this->model->fields can be use for subforms,,Subforms generate field name as name="subFormClassName[field]"????

[kristijanhusak]

Same way, when you initialize it, pass model and use it.

[sitapraj]

if sub form attributes are the attributes of a model then how value can be populated. subFormClassName[field] is the attribute of model. $model->subFormClassName[field] = "value".

[kristijanhusak]

I think just passing the model to the subform should work.

<?php
$this->add('sub_form', 'form', [
    'class' => \FormBuilder::create('Forms/SubForm', ['model' => $this->model])
    // ...
]);

[sitapraj]

but passing value like this $model->subFormClassName[field] = "value" is not populating in the form

[kristijanhusak]

yes, it's not working that way. It's not supported that way by laravel form builder class.