laravel-backpack - 如何利用背包克隆功能打造独特的 field 形态

Question

背包Crud具有克隆功能。但当我们的表具有唯一字段列时，它不起作用。 Backpack clone Documentation 当表有唯一列时如何克隆它？

public function clone($id)
    {
        $this->crud->hasAccessOrFail('clone');
        $this->crud->setOperation('clone');

        $clonedEntry = $this->crud->model->findOrFail($id)->replicate();

        return (string) $clonedEntry->push();
    }

Answer 1

最近我也遇到了同样的问题。这是我的解决方案:

public function clone($id)
{
    $this->crud->hasAccessOrFail('clone');
    $this->crud->setOperation('clone');

    $clonedEntry = $this->crud->model->findOrFail($id)->replicate();

    // now resolve the value for unique attribute before save. e.g.
    $slug = Str::slug($clonedEntry->name, '-');
    $count = $this->crud->model->whereRaw("slug RLIKE '^{$slug}(-[0-9]+)?$'")->count();
    $clonedEntry->slug = $count ? "{$slug}-{$count}" : $slug;

    // when you are done, save changes
    return (string) $clonedEntry->push();
}

您没有指定有关“唯一”属性的任何内容。您可以根据您的需求随意定制解析器。