Question

可以将客户分配给许多公司。因此，当选择了客户时，相应的公司应出现。我得到的是company_ids，而不是公司名称。

我想我快到了

我在下面包括了controller，view和jquery部分

JobController.php

public function edit(Job $job)
    {
        $subJobs = $job->sub_jobs;
        $customers = User::all();
        $selectedCustomer = $job->user_id;
        //dd($selectedCustomer);
        $companies = Company::all();
        $selectedCompany = $job->company_id;
        return view('employees.jobs.edit', compact('job', 'subJobs', 'customers', 'selectedCustomer', 'companies', 'selectedCompany'));
    }


    public function ajax(Job $job)
    {
      //Get the Job Number
      $id = $job->id;

      //Get the user_id of the job
      $userId = Job::where('id', '=', $id)->pluck('user_id')->first();

      //Show all customers
      $customers = User::all();
      //dd($customers);
      //Show the companies according to the customer list
      $companies = Job::where('user_id', '=', $userId)
                        ->pluck('company_id')->unique();
      //dd($companies);
      return json_encode($companies);

    }

public function update(Request $request, Job $job)
    {
        $this->validate($request, [
          'job_owner' => 'required'
        ]);

        //dd($request);
        $customer = new User();
        $customer->user_id = $request['customer'];


        $customer = User::Find($request['customer']);
        $customer->companies()->attach($request['company']);
        $customer->save();

        $job->user_id = $request['customer'];
        $job->company_id = $request['company'];
        $job->description= $request['description'];
        $job->owner= $request['owner'];
        $job->status= $request['status'];
        $job->despatch_status= $request['despatch_status'];
        $job->invoice_status= $request['invoice_status'];
        $job->sales_status= $request['sales_status'];
        $job->entered_status= $request['entered_status'];
        $job->delivery_date= $request['delivery_date'];
        $job->delivery_time= $request['delivery_time'];
        $job->comp= $request['comp'];
        $job->cost= $request['cost'];
        $job->profit= $request['profit'];
        $job->price= $request['price'];
        $job->nbt= $request['nbt'];
        $job->vat= $request['vat'];
        $job->total_value= $request['total_value'];
        $job->save();

        $jobs = Job::all();
        return view('employees.jobs.job', compact('jobs', $jobs));
    }

jobs.edit.blade.php

<form action="{{ route('employee.job.update',$job->id) }}" method="post">
      @method('PUT')
      @csrf
      <div class="form-group">
        <label for="inputJobNumber">Job Number</label>
        <input type="text" class="form-control" id="inputJobNumber" name="id" value="{{$job->id}}" readonly>
      </div>
      <div class="form-group">
        <label for="inputCustomerName">Customer Name</label>
          <select name="customer" class="form-control" id="inputUser">
             <option value="">--Select User--</option>
             @if ($customers->count())
               @foreach ($customers as $customer)
               <option value="{{ $customer->id }}" {{ $selectedCustomer == $customer->id ? 'selected="selected"' : '' }}>
                  {{ $customer->name }}
                </option>
               @endforeach
             @endif
          </select>
      </div>
      <div class="form-group">
        <label for="inputCustomerName">Company Name</label>
          <select name="company" class="form-control" id="inputCompany">
             <option value="">--Select Company--</option>
             @if ($companies->count())
             @foreach ($companies as $key => $value)
             <option value="{{ $key }}" {{ $selectedCompany == $key ? 'selected="selected"' : '' }}>
               {{ $value->name }}
             </option>
             @endforeach
           @endif

jobs.edit.blade.php的jQuery

<script type="text/javascript">
      $(document).ready(function() {
          $('select[name="customer"]').on('change', function() {
              var cusotmerId = $(this).val();
              if(cusotmerId) {
                  $.ajax({
                      url: '/employee/job/ajax/'+cusotmerId,
                      type: "GET",
                      dataType: "json",
                      success:function(data) {
                          $('select[name="company"]').empty();
                          $.each(data, function(key, value) {
                              $('select[name="company"]').append('<option value="'+ key +'">'+ value +'</option>');
                          });
                      }
                  });
              }else{
                  $('select[name="company"]').empty();
              }
          });
      });
  </script>

给定user_id时，我需要获取company_ids

$companies = DB::table('jobs')
                  ->where('user_id', '=', $userId)
                  ->join('companies', 'jobs.company_id', '=', 'companies.id')
                  ->get()
                  ->unique();

Answer 1

根据您的class ViewController: UIViewController { let url = "http://roadfiresoftware.com/feed/json" struct Blog: Decodable { let title: String let homepageURL: URL let articles: [Article] enum CodingKeys : String, CodingKey { case title case homepageURL = "home_page_url" case articles = "items" } } struct Article: Decodable { let id: String let url: URL let title: String } let task = URLSession.shared.dataTask(with: URL(string: url)!) { (data, response, error) in guard let data = data else { NSLog("Error: No data to decode") return } guard let blog = try? JSONDecoder().decode(Blog.self, from: data) else { NSLog("Error: Couldn't decode data into Blog") return } NSLog("blog title: \(blog.title)") NSLog("blog home: \(blog.homepageURL)") NSLog("articles:") for article in blog.articles { NSLog("- \(article.title)") } } }，您正在请求jobs.edit.blade.php进行客户变更，但是您的/employee/job/ajax/'+cusotmerId方法需要一个JobController::ajax实例作为参数，这似乎是错误的，请尝试此操作Job $job的实现：

JobController::ajax

更新

让我们假设public function ajax(Customer $customer) { $companies = $customer->companies()->pluck("name", "company_id"); return json_encode($companies); }确实在接收实例Job。根据我看到的代码，您可以像这样实现：

JobController::ajax

如果public function ajax(Job $job) { $userId = $job->user_id; $companies = Company::whereHas('jobs', function($query) use ($userId) { $query->where('user_id', '=', $userId); })->pluck('name', 'company_id'); return json_encode($companies); }关系尚不存在，则需要使用以下方式更新jobs模型

Company

依赖下拉列表-jQuery-Ajax

1 个答案: