How to update form field from resource Edit page's method?

I have resource edit form. In one placeholder field I am including my custom Livewire component. My Livewire component dispatches event 'update-stock' and with event it is sending $productId and $stock info. I am listening for that event on my resource edit page and when method is triggered I want to update stock field in the underlying form. But for some reason that stock variable doesn't change.

This is code from my resource edit page:

// app/Filament/Resources/TaskResource/Pages/EditTask.php
...
protected $listeners = ['update-stock' => 'updateProductStock'];

public function updateProductStock($args)
{
  $productId = $args['product_id'];
  $stock = $args['stock'];
  // $args are array holding 'productId' and 'stock' key
  // here I want to update field that is inside of the repeater field
  // repeater field is called 'taskItems' and every repeater item
  // has fields 'product_id' and 'stock'. This is what I was trying to do:
  $items = $this->data['taskItems'];

  foreach($items as $item) {
    if ($item['product_id'] == $productId) {
      $item['stock'] = $stock;
      break;
    }
  }
}
...

// app/Filament/Resources/TaskResource/Pages/EditTask.php
...
protected $listeners = ['update-stock' => 'updateProductStock'];

public function updateProductStock($args)
{
  $productId = $args['product_id'];
  $stock = $args['stock'];
  // $args are array holding 'productId' and 'stock' key
  // here I want to update field that is inside of the repeater field
  // repeater field is called 'taskItems' and every repeater item
  // has fields 'product_id' and 'stock'. This is what I was trying to do:
  $items = $this->data['taskItems'];

  foreach($items as $item) {
    if ($item['product_id'] == $productId) {
      $item['stock'] = $stock;
      break;
    }
  }
}
...

As you can see I was trying to manipulate field values directly in $data array, but that doesn't work. When form is rendered I still see old stock value in the form.

Solution

After some more debugging problem was the way I was updating the value. This is foreach loop that made everything working fine:

$items = $this->data['taskItems'];

foreach($items as $key => $item) {
    if ($item['product_id'] == $productId) {
        // THIS IS HOW TO UPDATE PROPERTY INSIDE DATA ARRAY
        $this->data['taskItems'][$key]['stock'] = $stock;
        break;
    }
}

$items = $this->data['taskItems'];

foreach($items as $key => $item) {
    if ($item['product_id'] == $productId) {
        // THIS IS HOW TO UPDATE PROPERTY INSIDE DATA ARRAY
        $this->data['taskItems'][$key]['stock'] = $stock;
        break;
    }
}

I think that has nothing to do with filament but rather how PHP works.

Jump to solution

How to update form field from resource Edit page's method?

// app/Filament/Resources/TaskResource/Pages/EditTask.php
...
protected $listeners = ['update-stock' => 'updateProductStock'];

public function updateProductStock($args)
{
  $productId = $args['product_id'];
  $stock = $args['stock'];
  // $args are array holding 'productId' and 'stock' key
  // here I want to update field that is inside of the repeater field
  // repeater field is called 'taskItems' and every repeater item
  // has fields 'product_id' and 'stock'. This is what I was trying to do:
  $items = $this->data['taskItems'];

  foreach($items as $item) {
    if ($item['product_id'] == $productId) {
      $item['stock'] = $stock;
      break;
    }
  }
}
...

// app/Filament/Resources/TaskResource/Pages/EditTask.php
...
protected $listeners = ['update-stock' => 'updateProductStock'];

public function updateProductStock($args)
{
  $productId = $args['product_id'];
  $stock = $args['stock'];
  // $args are array holding 'productId' and 'stock' key
  // here I want to update field that is inside of the repeater field
  // repeater field is called 'taskItems' and every repeater item
  // has fields 'product_id' and 'stock'. This is what I was trying to do:
  $items = $this->data['taskItems'];

  foreach($items as $item) {
    if ($item['product_id'] == $productId) {
      $item['stock'] = $stock;
      break;
    }
  }
}
...

As you can see I was trying to manipulate field values directly in $data array, but that doesn't work. When form is rendered I still see old stock value in the form.

Solution

After some more debugging problem was the way I was updating the value. This is foreach loop that made everything working fine:

$items = $this->data['taskItems'];

foreach($items as $key => $item) {
    if ($item['product_id'] == $productId) {
        // THIS IS HOW TO UPDATE PROPERTY INSIDE DATA ARRAY
        $this->data['taskItems'][$key]['stock'] = $stock;
        break;
    }
}

$items = $this->data['taskItems'];

foreach($items as $key => $item) {
    if ($item['product_id'] == $productId) {
        // THIS IS HOW TO UPDATE PROPERTY INSIDE DATA ARRAY
        $this->data['taskItems'][$key]['stock'] = $stock;
        break;
    }
}

I think that has nothing to do with filament but rather how PHP works.

Jump to solution

How to update form field from resource Edit page's method?

How to update form field from resource Edit page's method?

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