Binded input value does not appear in request

user_11125098 0
Viewed 773

I am trying to bind backAfterSaveStatus value to hidden input and for some reason then form is submited backAfterSave value is null. After that I go back and submit form again - backAfterSave value is 1. Where is the problem? I tried same thing without prevent and submit() but it's not working still. Also I had dumped div with x-text and code makes hidden input 1 before form submit. What I am doing wrong?

<form action="<...>" method="post">
    <div x-data="{
        backAfterSaveStatus: '',
        backAfterSave () {
            this.backAfterSaveStatus = '1';
            document.querySelector('form.withBackAfterSave').submit();
        }
    }">
        <input name="backAfterSave" :value="backAfterSaveStatus">
        <div>
            <span>
                <button x-on:click.prevent="backAfterSave()" type="submit">
                    Save & back
                </button>
            </span>
            <span>
                <button type="submit">
                    Save
                </button>
            </span>
        </div>
    </div>
</form>

I want same result as below:

let buttonBackAfterSave = document.getElementById('button-back-after-save');

if (buttonBackAfterSave) {
    buttonBackAfterSave.addEventListener('click',  () => document.getElementById('input-back-after-save').value = 1);
}
alpine.js laravel html javascript
3 Answers

The problem is the form being submitted "too fast" (the backAfterSaveStatus value isn't done binding to the input). Use $nextTick so Alpine waits until the value is properly changed.

<form method="post" class="withBackAfterSave">
    @csrf
    <div x-data="{
        backAfterSaveStatus: '',
        backAfterSave () {
            this.backAfterSaveStatus = '1';
            this.$nextTick(() => { document.querySelector('form.withBackAfterSave').submit() });
        }
    }">
        <input name="backAfterSave" x-bind:value="backAfterSaveStatus">
        <div>
            <span>
                <button x-on:click.prevent="backAfterSave()" type="submit">
                    Save & back
                </button>
            </span>
            <span>
                <button type="submit">
                    Save
                </button>
            </span>
        </div>
    </div>
</form>
user_43394020

Thank you! I don't use x-ref because these buttons are in separate layouts file, so I can't move it outside x-data range. My final code:

<div class="pt-5">
    <div class="flex justify-end" x-data="{
        backAfterSave: 0
    }">
        <input type="hidden" name="backAfterSave" :value="backAfterSave">
        <button type="button"
                class="bg-white py-2 px-4 border border-gray-300 rounded-md shadow-sm text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
            {{ __('Cancel') }}
        </button>
        <button type="submit"
                @click.prevent="backAfterSave=1; $nextTick(() => {
                    document.querySelector('form.with-back-after-save').submit()
                })"
                class="ml-3 inline-flex justify-center py-2 px-4 border border-transparent shadow-sm text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
            {{ __('Save & back') }}
        </button>
        <button type="submit"
                class="ml-3 inline-flex justify-center py-2 px-4 border border-transparent shadow-sm text-sm font-medium rounded-md text-white bg-teal-600 hover:bg-teal-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-teal-500">
            {{ __('Save') }}
        </button>
    </div>
</div>
user_111250980

Just released that I could use simple button with custom name and given value.. No javascript was needed :)

<button type="submit" name="back-after-submit" value="1">Save</button>
user_111250980
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