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Kieran Fahy
Kieran Fahy

Posted on • Edited on

Livewire 3 Multiple Select with Alpine JS

I have built a multiple select dropdown using livewire 3 and alpine. Most of the code I found on the web and adjusted it to work for me. I didn't want to use and additional plugins. Let me know if you have any suggestions.

@props([
    'optionValue'  => '',
    'optionLabel' => '',
    'optionsList' => [],
    'label' => null,
    'disabled' => false,
])

<div>
    @if($label)
        <x-input-label class="mb-1" x-on:click="open" > {{ $label }}</x-input-label>
    @endif

    <div
        wire:key="{{ rand() }}"
        x-data="dropdown()"
        x-init="$nextTick(() => loadOptions())"
    >
        <input name="values" type="hidden" x-bind:value="selectedValues()">
        <div class="inline-block relative w-full">
            <div class="flex flex-col items-center relative">
                <div x-on:click="open" class="w-full">
                    <div class="flex form-select-sm appearance-none w-full px-2 py-1 text-sm
                                                                font-normal
                                                                text-gray-700
                                                                bg-white bg-clip-padding bg-no-repeat
                                                                border border-solid border-gray-300
                                                                rounded
                                                                transition
                                                                ease-in-out
                                                                duration-500
                                                                focus:text-gray-700 focus:bg-white focus:border-blue-600 focus:outline-none">
                        <div class="flex flex-auto flex-wrap">
                            <template x-for="(option,index) in selected" :key="options[option].value">
                                <div
                                    class="inline-flex items-center rounded-md bg-gray-50 px-2 py-1 mr-1 text-sm font-medium text-gray-600 ring-1 ring-inset ring-gray-500/10">
                                    <div class="text-xs font-normal leading-none max-w-full flex-initial"
                                         x-model="options[option]" x-text="options[option].text"></div>
                                    <div class="flex flex-auto flex-row-reverse">
                                        <div x-on:click="remove(index,option)">
                                            <svg class="fill-current h-4 w-4 " role="button" viewBox="0 0 20 20">
                                                <path d="M14.348,14.849c-0.469,0.469-1.229,0.469-1.697,0L10,11.819l-2.651,3.029c-0.469,0.469-1.229,0.469-1.697,0
                                           c-0.469-0.469-0.469-1.229,0-1.697l2.758-3.15L5.651,6.849c-0.469-0.469-0.469-1.228,0-1.697s1.228-0.469,1.697,0L10,8.183
                                           l2.651-3.031c0.469-0.469,1.228-0.469,1.697,0s0.469,1.229,0,1.697l-2.758,3.152l2.758,3.15
                                           C14.817,13.62,14.817,14.38,14.348,14.849z"/>
                                            </svg>
                                        </div>
                                    </div>
                                </div>
                            </template>
                            <div x-show="selected.length == 0" class="flex-1">
                                <input placeholder="Select a option"
                                       class="bg-transparent p-1 px-2 appearance-none outline-none h-full w-full text-gray-800"
                                       x-bind:value="selectedValues()"
                                >
                            </div>
                        </div>
                        <div class="text-gray-300 w-8 py-1 pl-2 pr-1 border-l flex items-center border-gray-200">

                            <button type="button" x-show="isOpen() === true" x-on:click="open"
                                    class="cursor-pointer w-6 h-6 text-gray-600 outline-none focus:outline-none">
                                <svg version="1.1" class="fill-current h-4 w-4" viewBox="0 0 20 20">
                                    <path d="M17.418,6.109c0.272-0.268,0.709-0.268,0.979,0s0.271,0.701,0,0.969l-7.908,7.83
    c-0.27,0.268-0.707,0.268-0.979,0l-7.908-7.83c-0.27-0.268-0.27-0.701,0-0.969c0.271-0.268,0.709-0.268,0.979,0L10,13.25
    L17.418,6.109z"/>
                                </svg>

                            </button>
                            <button type="button" x-show="isOpen() === false" @click="close"
                                    class="cursor-pointer w-6 h-6 text-gray-600 outline-none focus:outline-none">
                                <svg class="fill-current h-4 w-4" viewBox="0 0 20 20">
                                    <path d="M2.582,13.891c-0.272,0.268-0.709,0.268-0.979,0s-0.271-0.701,0-0.969l7.908-7.83
    c0.27-0.268,0.707-0.268,0.979,0l7.908,7.83c0.27,0.268,0.27,0.701,0,0.969c-0.271,0.268-0.709,0.268-0.978,0L10,6.75L2.582,13.891z
    "/>
                                </svg>

                            </button>
                        </div>
                    </div>
                </div>
                <div class="w-full">
                    <div x-show.transition.origin.top="isOpen()"
                         class="absolute shadow top-100 bg-white z-40 w-full lef-0 rounded max-h-64 overflow-y-auto text-sm"
                         x-on:click.away="close">
                        <div class="flex flex-col w-full">
                            <template x-for="(option,index) in options" :key="index">
                                <div>
                                    <div
                                        class="cursor-pointer w-full border-gray-100 rounded-t border-b hover:bg-gray-200"
                                        @click="select(index,$event)">
                                        <div x-bind:class="option.selected ? 'border-gray-600' : ''"
                                             class="flex w-full items-center p-2 pl-2 border-transparent border-l-2 relative">
                                            <div class="w-full items-center flex">
                                                <div class="mx-2 leading-6" x-model="option" x-text="option.text"></div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </template>
                        </div>
                    </div>
                </div>
            </div>
            <!-- on tailwind components page will no work  -->
        </div>
    </div>
    <script>

        function dropdown() {
            return {

                options: [],
                selected: [],
                show: false,
                open() {
                    this.show = true
                },
                close() {
                    this.show = false
                },
                isOpen() {
                    return this.show === true
                },
                select(index, event) {

                    if (!this.options[index].selected) {

                        this.options[index].selected = true;
                        this.options[index].element = event.target;
                        this.selected.push(index);
                        @this.set('{{ $attributes->wire('model')->value() }}', this.selectedValues());


                    } else {
                        this.selected.splice(this.selected.lastIndexOf(index), 1);
                        this.options[index].selected = false
                        @this.set('{{ $attributes->wire('model')->value() }}', this.selectedValues());
                    }
                },
                remove(index, option) {
                    this.options[option].selected = false;
                    this.selected.splice(index, 1);
                    @this.set('{{ $attributes->wire('model')->value() }}', this.selectedValues());
                },
                loadOptions() {
                    const options = @json($optionsList);
                    const selected = @entangle($attributes->wire('model')->value());

                    for (let i = 0; i < options.length; i++) {

                        this.options.push({
                            value: options[i]['{{ $optionValue }}'],
                            text: options[i]['{{ $optionLabel }}'],
                            selected: selected.initialValue.includes(options[i]['{{ $optionValue }}'])
                        });

                    }

                    this.options.forEach((option, index) => {
                        if (option.selected) this.selected.push(index);
                    });

                },
                selectedValues() {
                    return this.selected.map((option) => {
                        return this.options[option].value;
                    })
                },

            }

        }

    </script>


</div>


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I then add it to my livewire component like so

<x-form.multi-select
                            wire:model.live="grades"
                            :options-list="\Config::get('applications.grades')"
                            :option-label="'name'"
                            :option-value="'id'"
                            label="Grades" />
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Thanks

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