Unable to switch page template on page creation

[Dakaa]

Bug report

What I did: Trying to create new page with a different template.

What I expected to happen: Different form inputs after switching template.

What happened: After the page refresh, it still loads the default template.

What I've already tried to fix it: Clueless.

Backpack, Laravel, PHP, DB version: 3.4, 7.2, MySQL 5.7

[welcome]

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[Dakaa]

`// -----------------------------------------------
// Overwrites of CrudController
// -----------------------------------------------

// Overwrites the CrudController create() method to add template usage.
public function create($template = false)
{
    if (request()->has('template')) {
        $template = request('template');
    }
    $this->addDefaultPageFields($template);
    $this->useTemplate($template);

    return parent::create();
}`

[tabacitu]

Thanks for your fix @Dakaa .

However, I think you're either using an old version of the select_page_template field, in which case I recommend you upgrade to the latest:

<!-- Select template field. Used in Backpack/PageManager to redirect to a form with different fields if the template changes. A fork of the select_from_array field with an extra ID and an extra javascript file. -->
  <div @include('crud::inc.field_wrapper_attributes') >

    <label>{{ $field['label'] }}</label>
    <select
        class="form-control"
        id="select_template"

        @foreach ($field as $attribute => $value)
            @if (!is_array($value))
            {{ $attribute }}="{{ $value }}"
            @endif
        @endforeach
        >

        @if (isset($field['allows_null']) && $field['allows_null']==true)
            <option value="">-</option>
        @endif

        @if (count($field['options']))
            @foreach ($field['options'] as $key => $value)
                <option value="{{ $key }}"
                    @if (isset($field['value']) && $key==$field['value'])
                         selected
                    @endif
                >{{ $value }}</option>
            @endforeach
        @endif
    </select>

    @if (isset($field['hint']))
        <p class="help-block">{!! $field['hint'] !!}</p>
    @endif
  </div>


{{-- ########################################## --}}
{{-- Extra CSS and JS for this particular field --}}
{{-- If a field type is shown multiple times on a form, the CSS and JS will only be loaded once --}}
@if ($crud->checkIfFieldIsFirstOfItsType($field, $fields))

    {{-- FIELD JS - will be loaded in the after_scripts section --}}
    @push('crud_fields_scripts')
        <!-- select_template crud field JS -->
        <script>
            function redirect_to_new_page_with_template_parameter() {
                var new_template = $("#select_template").val();
                var current_url = "{{ Request::url() }}";

                window.location.href = strip_last_template_parameter(current_url)+'?template='+new_template;
            }

            function strip_last_template_parameter(url) {
                // if it's a create or edit link with a template parameter
                if (url.indexOf("/create/") > -1 || url.indexOf("/edit/") > -1)
                {
                    // remove the last parameter of the url
                    var url_array = url.split('/');
                    url_array = url_array.slice(0, -1);
                    var clean_url = url_array.join('/');

                    return clean_url;
                }

                return url;
            }

            jQuery(document).ready(function($) {
                $("#select_template").change(function(e) {
                    var select_template_confirmation = confirm("@lang('backpack::pagemanager.change_template_confirmation')");
                    if (select_template_confirmation == true) {
                        redirect_to_new_page_with_template_parameter();
                    } else {
                        // txt = "You pressed Cancel!";
                    }
                });

            });
        </script>
    @endpush

@endif
{{-- End of Extra CSS and JS --}}
{{-- ########################################## --}}

Or you're using Backpack/Demo as a starting point for your project (which had this bug), which is not recommended. Take note it's always better to start from scratch. Unless you know what you're doing, in which case go ahead :-)

Cheers!