Question 171774 in Laravel Question posted in
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“How can I send a selected value from a dropdown list to a Laravel database?”

So I’m creating an application where I can create a new group with a name, a dropdown list to add a member, a minimum age, a maximum age, and whether the group is active or not.

However I’m getting the validation error ‘member is required’ when I’m choosing a member from my dropdown list, and when I choose a member from my dropdown list I want it to be sent to the database and added to the new group I just created together with the all other input values.

Here is my dropdown code

<x-tmk.form.select wire:model="newGroup.member_id" id="member_id" class="block mt-1 w-full">
                            <option value="">Select a member</option>
                            @foreach ($members as $member)
                                <option value="{{ $member->id }}">{{ $member->name }}</option>
                            @endforeach
                        </x-tmk.form.select>

Here is my controller code to create a new group:

public function createGroup()
        {
            $this->validate();
            $group = Group::create([
                'id' => $this->newGroup['id'],
                'name' => $this->newGroup['name'],
                'member_id' => $this->newGroup['member_id'],
                'min_age' => $this->newGroup['min_age'],
                'max_age' => $this->newGroup['max_age'],
                'active' => $this->newGroup['active'],
            ]);
            $group->groupmember()->create([
                'member_id' => $this->newGroup['member_id'],
            ]);
            $this->showModal = false;
            $this->dispatchBrowserEvent('swal:toast', [
                'background' => 'success',
                'html' => "The group <b><i>{$group->name}</i></b> has been added",
            ]);
        }

And here is my controller code for my render() method:

public function render()
        {
            $members = Member::orderBy('name')->get();
    
            $query = Group::orderBy('id');
    
            if ($this->search) {
                $groups = $query->searchGroupName($this->search)->paginate($this->perPage);
            } else {
                if ($this->showActiveOnly) {
                    $groups = $query->where('active', 1)->paginate($this->perPage);
                } else {
                    $groups = $query->where('active', 0)->paginate($this->perPage);
                }
            }
    
            return view('livewire.admin.group-classification', compact('groups', 'members'))
                ->layout('layouts.projectphp-layout', [
                    'title' => 'Groepen',
                    'description' => 'Hier kan je de groep indelingen bekijken.'
                ]);
        }

I’m using laravel 9.52 and PHP 8.1

Thanks in advance

Tags:

2

Answers


  1. 0

    Add deafult value in your mount() function

    public function mount()
{
    $this->newGroup = new Group();
    $this->newGroup->member_id = 0;
}
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  2. 0

    Livewire does not listen to selected attributes in HTML when you are using wire:model, because it will overwrite it with the value from the component. Therefor, set wire:key to your option like below,

    <x-tmk.form.select wire:model="newGroup.member_id" id="member_id" class="block mt-1 w-full">
    <option value="">Select a member</option>
    @foreach ($members as $member)
        <option value="{{ $member->id }}" wire:key="member-{{ $member->id }}">{{ $member->name }}</option>
    @endforeach
</x-tmk.form.select>

    To set a value that is bound through wire:model, you need to set the value in the component. So in the mount() method, you can do

    $this->newGroup['member_id'] = $member->id;
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