Blade returning [object Object] from array values

Hi - I'm feeding an array into a blade template to create a checkbox + label input element. I have this working correctly on one array but on the other instead of returning the value="(some value)", it returns value="[object Object]" and I can't see where the problem is originating.

The blade template code is:

@foreach($filters->$method() AS $key => $value)
            <label class="flex flex-row space-x-3 text-xs" wire:key="{{ $method }}-{{ $key }}">
                <input type="checkbox" wire:model.live="filters.{{ $method }}SelectedIds" value="{{ $key }}"> {{-- HERE'S THE PROBLEM --}}
                <span>{{ $value }}</span>
            </label>
@endforeach

When I do an @json() dump of the two arrays, they return:

{{-- first array --}}
{"1":"ABBR"};

{{-- second array --}}
{"2028":2028,"2027":2027,"2026":2026, etc.}

Here are the results when I inspect the HTML:

{{-- first array --}}
<label class="flex flex-row space-x-3 text-xs" wire:key="schools-1">
			<input type="checkbox" wire:model.live="filters.schoolsSelectedIds" value="1">
			<span>ABBR</span>
</label>

{{-- second array --}}
<label class="flex flex-row space-x-3 text-xs" wire:key="classOfs-2028">
			<input type="checkbox" wire:model.live="filters.classOfsSelectedIds" value="[object Object]">
			<span>2028</span>
</label>
...

Any thoughts on what might be causing this problem are appreciated! Rick

LaryAI

1 year ago

Level 58

The issue you're encountering is due to the fact that the $key in your second array is an object, not a primitive value like a string or number. When you try to use an object as the value of an HTML attribute, it gets converted to the string "[object Object]".

To fix this, you need to ensure that the $key is a primitive value. If the $key is an object, you should convert it to a string or extract a property from it that can be used as a value.

Here's a modified version of your Blade template that checks if the $key is an object and converts it to a string if necessary:

@foreach($filters->$method() as $key => $value)
    @php
        // Check if $key is an object and convert it to a string if necessary
        $keyValue = is_object($key) ? json_encode($key) : $key;
    @endphp
    <label class="flex flex-row space-x-3 text-xs" wire:key="{{ $method }}-{{ $keyValue }}">
        <input type="checkbox" wire:model.live="filters.{{ $method }}SelectedIds" value="{{ $keyValue }}">
        <span>{{ $value }}</span>
    </label>
@endforeach

In this solution, we use the json_encode function to convert the object to a JSON string if $key is an object. This ensures that the value attribute of the checkbox will always be a string.

If you know the structure of the object and you want to use a specific property of the object as the value, you can adjust the code accordingly. For example, if the object has an id property that you want to use:

@foreach($filters->$method() as $key => $value)
    @php
        // Use the 'id' property of the object if $key is an object
        $keyValue = is_object($key) ? $key->id : $key;
    @endphp
    <label class="flex flex-row space-x-3 text-xs" wire:key="{{ $method }}-{{ $keyValue }}">
        <input type="checkbox" wire:model.live="filters.{{ $method }}SelectedIds" value="{{ $keyValue }}">
        <span>{{ $value }}</span>
    </label>
@endforeach

This way, you can ensure that the value attribute is correctly set based on the structure of your data.

Rretzko

1 year ago

Best Answer

Level 15

Following the LaryAI suggestion did not resolve the problem. I was able to resolve it by changing the array which collected the user's checkbox response to:

$this-classOfsSelectedIds = auth()->user()->teacher->students
            ->unique('class_of')
            ->sortByDesc('class_of')
            ->pluck('class_of')
            ->toArray();

from

auth()->user()->teacher->students
            ->unique('class_of')
            ->sortByDesc('class_of')
            ->pluck('class_of', 'class_of')
            ->toArray();

I didn't research how using pluck('column', 'id') option causes this problem, but not using the 'id' option resolved the problem.

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