如何从JS发送变量到我的Laravel控制器 [英] How to send a variable from JS to my Laravel Controller

问题描述

对不起.我已经研究了几个小时，但仍然没有成功.

I'm sorry. I have researched for several hours, several and I still do not reach success with this.

让我解释一下:

我在路线/events/1 上，所以我已经在该事件的详细信息之内了.

I'm on the route /events/1, so I'm already inside the details of the event.

当我选择一个日期(这就是为什么它是变量"day_id")时，它将进行查询.但是每个事件都有不同的日子，这就是为什么我也需要传递事件ID来进行查询.

When I select a date (that is why it is the variable "day_id") it makes a query. But each event has different days, that is why I need to pass the event ID also to make the query.

$event_id = "Dynamic Value";
$data = Hour::where('selected_date', $day_id)->where('event_id', $event_id)->get();

我不知道自己是否能很好地解释自己，我还需要做的是ID是动态的，例如 day_id .

I don't know if I explain myself well, what I need to do is also that the ID is dynamic, like the day_id.

我已经在许多方面尝试了5天以上.

I've been trying for more than 5 days in many ways.

我正在尝试通过JavaScript获取事件"的ID，我想将其作为变量发送给控制器，但目前还不能.有人可以帮我吗?

I'm trying to get the ID of my "Event" via JavaScript and I want to send it as a variable to the controller but I have not been able to yet. Could anyone help me, please?

@section('scripts')
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
   $(document).ready(function(){
      $(document).on('change', '#day', function(){
         var day_id=$(this).val();
         var event_id = $('#event_id').val();
         // console.log(day_id);
         // console.log(event_id);

         $.get('/hour?day_id=' + day_id, function(data){
            $('#hours').empty();
            $('#hours').append('<option value="0" disable selected="true"> Selecciona la hora</option>');

               for (var i = 0; i < data.length; i++) {
                  currentDay = data[i].hour; 
                  console.log(currentDay);
                  $('#hours').append('<option value="'+ data[i].hour +'">'+ data[i].hour +'</option>');
               }
         })
      });
   });
</script>
@endsection

使用此代码，我获取了日期的值，但是现在我需要根据事件的ID显示时间.这就是为什么我需要将变量 event_id 传递给控制器​​方法的原因.我正在使用 var event_id = $('#event_id').val();

With this code I'm getting the value of the date, but now I need to show the time depending on the ID of the event. That's why I need to pass the variable event_id to the controller method. I'm using var event_id = $('#event_id').val();

这是控制器中的代码:

   {
      $day_id = Input::get('day_id');
      $event_id = '2'; //I need this to be dynamic
      $data = Hour::where('selected_date', $day_id)->where('event_id', $event_id)->get();

      return response()->json($data);
   }

Web.php

Route :: get('/hour'，'Events \ EventController @ getHours')-> name('ajax.hour');

再次抱歉.我已经研究了几个小时，但仍然没有成功.

Once again, I'm sorry. I have researched for several hours, several and I still do not reach success with this.

我需要知道如何将 event_id 变量传递给laravel控制器.谢谢！

What I need is to know how to how to pass event_id variable to laravel controller. Thanks!

推荐答案

是的，您在这里获取事件ID:

So, yes, you're getting the event ID here:

var event_id = $('#event_id').val();

但是您没有对该变量做任何事情.如果您从不使用分配的变量，则表明您的代码有问题.一些编程语言甚至会因此而拒绝编译.

But you're not doing anything with that variable. If you never use a variable you've assigned, that's a major indication that you have a problem in your code. Some programming languages will even refuse to compile because of it.

将事件ID传递到GET请求的查询字符串中，就像处理日期ID一样:

Pass the event ID in the query string of your GET request, just like you're doing with day ID:

$.get('/hour?day_id=' + day_id + '&event_id=' + event_id, function(data){

然后以相同的方式从输入外观中检索它:

Then retrieve it the same way from the Input facade:

$event_id = Input::get('event_id');

这篇关于如何从JS发送变量到我的Laravel控制器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！