Upgrade from Livewire 2 to Livewire 3

Certainly! This is a common issue when upgrading from Livewire 2 to Livewire 3, due to changes in how Livewire syncs data and refreshes the DOM.

The Issue

In Livewire 3, the modifier .live was removed and is no longer needed (wire:model.live). Additionally, Livewire 3 now expects you to use wire:model, unless you have a very specific use-case that needs .defer or .lazy.
However, another change is that Livewire now closely follows how Alpine handles reactivity, and the browser's <select> may not always behave as expected if the value types differ (string versus int).

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Solution Steps

1. Remove .live Modifier

   Replace:

   wire:model.live="entreprise_id"
   

   With:

   wire:model="entreprise_id"
   

2. Ensure Type Consistency

   Make sure the value of each <option> is the same type as your $entreprise_id property (string or int), and that the $entreprise_id property is properly set in your Livewire component before rendering the select. You may want to cast the values:

   <option value="{{ (string) $entreprise->id }}">{{ $entreprise->raison_sociale }}</option>
   

   And in your Livewire component:

   public int|string|null $entreprise_id = null;
   

3. If Using defer or lazy, Check for Delays

   If you intentionally want to delay updates, use wire:model.defer or wire:model.lazy appropriately.

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Example — Updated Select

<select id="entreprise_id" wire:model="entreprise_id" name="entreprise_id" @if ($readonly) disabled @endif>
    <option value="">Choisir une entreprise</option>
    @foreach ($entreprises as $entreprise)
        <option value="{{ (string) $entreprise->id }}">{{ $entreprise->raison_sociale }}</option>
    @endforeach
</select>

Extra tip: If $entreprise_id is an integer, casting the value to string ensures the browser matches the value correctly.

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TL;DR

• Remove .live: use wire:model instead.
• Cast option values to string if your model uses integer IDs.
• Ensure $entreprise_id is set before rendering.

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If you still experience issues, try running php artisan livewire:publish --assets and clear your browser cache to ensure the new Livewire 3 assets are being loaded.

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Let me know if this works or if you have further issues!