Question

Hello im new to laravel livewire now im trying to sum of two values and result get in another input filed. but laravel i did this using jQuery now im trying livewire instead of jQuery.

现在我通过foreach循环从数据库表中获得第一个输入值，第二个输入值我手动插入，第三个输入值得到结果。

问题1

but im facing problem in 1st input if i use foreach with wire:model="Amount" & value="{{ $prices->Amount}}" at same time in input i get empty.

@foreach ($price $prices)
<label>Amount</label>
<input wire:model="Amount" name="Amount" value="{{ $prices->Amount}}">
@endforeach

<label>Disscount</label>
<input type="text" wire:model="Disscount" name="Disscount" >

<label>Result</label>
<input type="text" value="{{ $result }}" name="Disscount" >

问题2

if i removed code value="{{ $prices->Amount}}" & keeping wire:model="Amount" i dont get value from foreach because i removed value="{{ $prices->Amount}}" this time i entered manually insert value in input it works i get result, but i need to sum value with foreach value. if i removed wire:model="Amount" & keeping value="{{ $prices->Amount}}" sum not works because value not reach to controller without wire:mode.

@foreach ($price $prices)
<label>Amount</label>
<input wire:model="Amount" name="Amount" value="{{ $prices->Amount}}">
@endforeach

<label>Disscount</label>
<input type="text" wire:model="Disscount" name="Disscount" >

<label>Result</label>
<input type="text" value="{{ $result }}" name="Disscount" >

我的控制器

public $result;
public $Amount;
public $Disscount;

public function updated() //used for sum
{
    $this->result = $this->Amount - $this->Disscount;
}

  public function mount()
{
    $this->price = Pricing::all();   
}

Answer 1

您正在对一个Amount变量执行wire:model，但在价格的foreach内部执行。

因此，目前还不完全清楚你到底想安装什么。

您不应该使用value=“…”，因为Livewire通过wire:model自动从公共属性获取值。

此外，您可能应该在Result输入中使用wire:model。

Answer 2

我不太清楚为什么会有这个循环，所以我会告诉你没有循环

<label>Amount</label>
<input wire:model="amount" name="Amount">

<label>Disscount</label>
<input type="text" wire:model="disscount" name="Disscount" >

<label>Result</label>
<input type="text" wire:model="result" name="Result" >

//组件

public $result;
public $amount;
public $disscount;

public function updatedAmount()
{
    $this->getTotalSum();
}

public function updatedDisscount()
{
    $this->getTotalSum();
}

public function getTotalSum()
{
    if ($this->amount && $this->disscount)
        $this->result = ($this->amount + $this->disscount)
}

友情链接