在编辑模式下打开页面时如何填充 state/region/subregion 个选项？

Question

在Laravel 8/livewire 2/aplinejs中我需要填写state/region/subregion，这是db中的表我 select 来自先前 selected 区域的子区域和来自先前 selected 的 select 区域，例如

public function updatedSelectedState($state_id)
{
    $this->regionsSelectionArray       = Region::getRegionsSelectionArray($state_id, 'A');
    $this->detailsForm['state_id']     = $state_id;
}

public function updatedSelectedRegion($region_id)
{
    $this->subregionsSelectionArray    = Subregion::getSubregionsSelectionByRegionIdArray($region_id);
    $this->selectedSubregion           = null;
}

插入数据没问题，但是当我在“编辑”模式下打开编辑器时，我需要填写初始值我失败了怎么办。我记得当我用 jquery 做类似的任务时，我有一个 common bool var，我设置为 true 当 jquery 被启动时。在 onChange 事件中，我检查了这个 var 。但是我怎样才能在 livewire 中做到这一点？

提前致谢！

Answer 1

在您的编辑方法中调用以下函数示例：

public function updatedSelectedState($state_id)
{
$this->changeSelectedState($state_id);
}

public function updatedSelectedRegion($region_id)
{
$this->changeSelectedRegion($region_id);
}

public function changeSelectedState($state_id){
$this->regionsSelectionArray = Region::getRegionsSelectionArray($state_id, 'A');
$this->detailsForm['state_id'] = $state_id;
}

public function changeSelectedRegion($region_id)
{
$this->subregionsSelectionArray = Subregion::getSubregionsSelectionByRegionIdArray($region_id);
$this->selectedSubregion = null;
}

public function edit(){
// $state_id = provide your state id here
// $region_id = provide your region id here

$this->changeSelectedState($state_id);
$this->changeSelectedRegion($region_id);
}

在编辑模式下打开页面时如何填充 state/region/subregion 个选项？

How to fill state/region/subregion selections when page is opened in edit mode?

laravel-livewire