Laravel重用形式有时存在变量

Question

I have a form which contains separate date and time fields, when submitted my controller actually joins the two values to store into my datetime field in my database.

Form:

<div class="form-group @if ($errors->has('date')) has-error @endif">
    {!! Form::label('date', 'Date') !!}
    {!! Form::date('date', null, ['class' => 'form-control']) !!}
    <small class="text-danger">{{ $errors->first('date') }}</small>
</div>

<div class="form-group @if ($errors->has('time')) has-error @endif">
    {!! Form::label('time', 'Time') !!}
    {!! Form::time('time', null, ['class' => 'form-control']) !!}
    <small class="text-danger">{{ $errors->first('time') }}</small>
</div>

This works fine when creating a new record, but I want to reuse the form on my edit pages (using the same partial), I have to edit the values in the inputs like so:

<div class="form-group @if ($errors->has('date')) has-error @endif">
    {!! Form::label('date', 'Date') !!}
    {!! Form::date('date', $booking->reservation_datetime->format('Y-m-d'), ['class' => 'form-control']) !!}
    <small class="text-danger">{{ $errors->first('date') }}</small>
</div>

<div class="form-group @if ($errors->has('time')) has-error @endif">
    {!! Form::label('time', 'Time') !!}
    {!! Form::time('time', $booking->reservation_datetime->format('G:i'), ['class' => 'form-control']) !!}
    <small class="text-danger">{{ $errors->first('time') }}</small>
</div>

But this will consequently will cause issues on the create page. How can I use the same form but only load values on edit pages?

Answer 1

You can use an intermediary variable:

<?php $date = isset($booking->reservation_datetime) ? $booking->reservation_datetime->format('Y-m-d') : null ?>
<div class="form-group @if ($errors->has('date')) has-error @endif">
    {!! Form::label('date', 'Date') !!}
    {!! Form::date('date', $date, ['class' => 'form-control']) !!}
    <small class="text-danger">{{ $errors->first('date') }}</small>
</div>

<?php $time = isset($booking->reservation_datetime) ? $booking->reservation_datetime->format('G:i') : null ?>    
<div class="form-group @if ($errors->has('time')) has-error @endif">
    {!! Form::label('time', 'Time') !!}
    {!! Form::time('time', $time, ['class' => 'form-control']) !!}
    <small class="text-danger">{{ $errors->first('time') }}</small>
</div>