用戶在laravel中計數記錄5.4

Question

我正試圖顯示用戶在表關係中的記錄。

我有一個關係到用戶表loan_applications表。

在我看來，我算這樣{!! $ loanapplications-> count() !!}，並告訴我的所有記錄。

但我需要用戶來算的記錄，我嘗試使用Auth :: user()方法，但在現階段，我不能這樣做。

這是表中的遷移的關係：

<?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'); 
    } 
} 

這是我的模型：

<?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')); 
    } 
} 

這是我的節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')); 
} 

並且這是元素中的計數器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> 

有人誰可以給我一個小的方向是什麼？

Answer 1

從官方載文：

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

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

因此，在你show方法，你可以這樣做：

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

的$user然後返回到你的觀點，你會得到的財產loan_applications_count那個對象。

*這不是爲了讓你動態傳遞用戶爲參數，如果你想與經過驗證的用戶做它的基礎上經過驗證的用戶，仍然可以。

**當然，您必須在User模型中定義loan_applications關係。

[編輯]

您可以通過調用Auth::user()->id獲取認證的用戶的用戶ID，然後將它傳遞到find方法，或訪問與Auth::user()->loan_applications->count的關係，但我不知道這一個。