用户在laravel中计数记录5.4

Question

我正试图显示用户在表关系中的记录。

我有一个关系到用户表loan_applications表。

在我看来，我算这样{!! $ loanapplications-> count() !!}，并告诉我的所有记录。

但我需要用户来算的记录，我尝试使用Auth :: user()方法，但在现阶段，我不能这样做。

这是表中的迁移的关系：

<?php 

use Illuminate\Support\Facades\Schema; 
use Illuminate\Database\Schema\Blueprint; 
use Illuminate\Database\Migrations\Migration; 

class CreateLoanApplicationsTable extends Migration 
{ 
    /** 
    * Run the migrations. 
    * 
    * @return void 
    */ 
    public function up() 
    { 
     Schema::create('loan_applications', function (Blueprint $table) { 
      $table->increments('id'); 
      $table->string('order',16)->unique(); 
      $table->string('loan_quantity'); 
      $table->string('loan_interests'); 
      $table->string('loan_type'); 
      $table->string('loan_time'); 
      $table->string('status'); 
      $table->integer('client_id')->unsigned();    
      $table->foreign('client_id') 
        ->references('id') 
        ->on('clients') 
        ->onDelete('cascade'); 
      $table->integer('user_id')->unsigned();    
      $table->foreign('user_id') 
        ->references('id') 
        ->on('users') 
        ->onDelete('cascade'); 
      $table->string('comments')->nullable();    
      $table->timestamps(); 
     }); 
    } 

    /** 
    * Reverse the migrations. 
    * 
    * @return void 
    */ 
    public function down() 
    { 
     Schema::dropIfExists('loan_applications'); 
    } 
} 

这是我的模型：

<?php 

namespace App\Http\Controllers; 

use Illuminate\Http\Request; 
use App\Http\Requests; 
use App\Http\Controllers\Controller; 
use App\LoanApplication; 
use App\Client; 
use App\Loans; 
use DB; 

class LoansController extends Controller 
{ 
    /** 
    * Display a listing of the resource. 
    * 
    * @return \Illuminate\Http\Response 
    */ 
    public function index(Request $request) 
    { 
     $data = Loans::order($request->get('criteria'))->orderBy('id','ASC')->paginate(8); 

     $loanapplications = DB::table('loan_applications')->get(); 

     $pendings = DB::table('loan_applications')->where('status', '=', '0')->get(); 

     $approved = DB::table('loan_applications')->where('status', '=', '1')->get(); 

     $declined = DB::table('loan_applications')->where('status', '=', '2')->get(); 

     //dd($data); 

     return view('loans.index',compact('data', 'loanapplications', 'pendings', 'approved', 'declined')) 
      ->with('i', ($request->input('page', 1) - 1) * 5); 
    } 

    /** 
    * Show the form for creating a new resource. 
    * 
    * @return \Illuminate\Http\Response 
    */ 
    public function create($id) 
    { 
     $data = DB::table('loan_applications')->find($id); 

     dd($data); 

     return view('loans.create',compact('data')); 
    } 
} 

这是我的节目在我的控制器方法：

public function show($id) 
{  

    $data = LoanApplication::find($id); 

    $clients = DB::table('clients')->find($id); 

    //$users = User::find($id); 

    $users = App\User::withCount('loan_applications')->find($id); 

    $loanapplications = DB::table('loan_applications')->get(); 

    $pendings = DB::table('loan_applications')->where('status', '=', '0')->get(); 

    $approved = DB::table('loan_applications')->where('status', '=', '1')->get(); 

    $declined = DB::table('loan_applications')->where('status', '=', '2')->get(); 

    //dd($data, $clients, $users); 

    return view('loanapplications.show',compact('data', 'clients', 'users', 'loanapplications', 'pendings', 'approved', 'declined')); 
} 

并且这是元素中的计数器a href

<a href="#" class="dropdown-toggle" data-toggle="dropdown"> 
    <i class="fa fa-bell-o"></i> 
    <span class="label label-warning">{!! $loanapplications->count() !!}</span> 
</a> 

有人谁可以给我一个小的方向是什么？

Answer 1

从官方载文：

$posts = App\Post::withCount('comments')->get(); 

foreach ($posts as $post) { 
    echo $post->comments_count; 
} 

因此，在你show方法，你可以这样做：

$user = App\User::withCount('loan_applications')->find(X /* User ID */); 

的$user然后返回到你的观点，你会得到的财产loan_applications_count那个对象。

*这不是为了让你动态传递用户为参数，如果你想与经过验证的用户做它的基础上经过验证的用户，仍然可以。

**当然，您必须在User模型中定义loan_applications关系。

[编辑]

您可以通过调用Auth::user()->id获取认证的用户的用户ID，然后将它传递到find方法，或访问与Auth::user()->loan_applications->count的关系，但我不知道这一个。