ErrorException 尝试从不同的数据库表中搜索名称时尝试获取非对象的属性“名称”？

Question

嘿，我想做一个用户 id、姓名和班次模式 id 的搜索功能。所有搜索功能都适用于所有人，但名称搜索失败。仅供参考，名称在用户表内，用户 ID 和班次模式 ID 在用户班次模式表内。

型号：-

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class UserShiftPattern extends Model
{
  protected $fillable = ['name'];

  public function shiftpattern(){
    return $this->belongsTo(ShiftPattern::class, 'shift_pattern_id');
  }

  public function uspattern(){
    return $this->belongsTo(User::class, 'user_id');
  }

  public function name(){
    return $this->hasOne(User::class);
  }
}

控制器：-

public function index(Request $req) {
    $usershiftpattern = [];
    if($req->filled('searching')){
        $usershiftpattern = $this->fetch($req);
    }
    return view('admin.usershiftpattern', ['usps' => $usershiftpattern]);
}
public function fetch(Request $req) {
    $fuserid = $req->inputuserid;
    $fname = explode(",", str_replace(' ','',$req->inputname));
    $fshiftpatternid = explode(",", str_replace(' ','',$req->inputshiftpatternid));
    $usershiftpatternlist = UserShiftPattern::query();
    if(isset($req->inputuserid)) {
            $usershiftpatternlist = $usershiftpatternlist->where('user_id','LIKE','%' .$fuserid. '%');
        }
        
        if(isset($req->inputname)){
            $usershiftpatternlist = $usershiftpatternlist->whereIn('name',$fname);
        }
        
        if(isset($req->inputshiftpatternid)){
            $usershiftpatternlist = $usershiftpatternlist->whereIn('shift_pattern_id',$fshiftpatternid);
        }
        $usershiftpatternlist = $usershiftpatternlist->get();

        return $usershiftpatternlist;
    }  

查看：-

<div class="text-right">
            <br>
            <button type="submit" name="searching" value="filter" class="btn-up">SEARCH</button>
        </div>
            <br>
    </form>

            <thead>
                <tr>
                    <th>User ID</th>
                    <th>Name</th>
                    <th>Shift Pattern ID</th>
                </tr>
            </thead>
            <tbody>
                @foreach($usps as $uspslist)
                <tr>
                    <td>{{ $uspslist->user_id }}</td>
                    <td>{{ $uspslist->uspattern->name }}</td>
                    <td>{{ $uspslist->shift_pattern_id }}</td>
                </tr>
                @endforeach
            </tbody>

Answer 1

这是因为在某些 $usps 实例中删除了 uspattern 关系，要忽略这一点，您可以使用 null 合并：

<td>{{ $uspslist->uspattern->name ?? "" }}</td>

或者过滤掉没有uspattern关系的记录：

$usershiftpatternlist = $usershiftpatternlist->has('uspattern')->get();

您只需要使用上述解决方案之一

Answer 2

更新 我现在让您包含用户模型，就像我在评论中显示的那样，并且 尝试像这样更改您的控制器，不要对所有变量名称使用小写字母，而不是$inputuserid 使用$inputUserId

  public function fetch(Request $req) {
        $fuserid = $req->inputuserid;
        $fname = explode(",", str_replace(' ','',$req->inputname));
        $fshiftpatternid = explode(",", str_replace(' ','',$req->inputshiftpatternid));
        $usershiftpatternlist = new UserShiftPattern(); //change this line

        $user = new User(); //check user table
        if(isset($req->inputuserid)) {
                $usershiftpatternlist = $usershiftpatternlist->where('user_id','LIKE','%' .$fuserid. '%');
            }
            
            if(isset($req->inputname)){
                $usershiftpatternlist = $user->whereIn('name',$fname); //change to user variable
            }
            
            if(isset($req->inputshiftpatternid)){
                $usershiftpatternlist = $usershiftpatternlist->whereIn('shift_pattern_id',$fshiftpatternid);
            }
            $results = $usershiftpatternlist->get(); //change variable
    
            return $results; //change this too
        }  

我希望它有效

用户数据库：-

public function up()
{
    Schema::create('users', function (Blueprint $table) {

        $table->integer('id')->primary('id')->unsigned();


        $table->string('name');
        $table->string('email');
        $table->rememberToken();

        $table->string('staff_no');
        $table->integer('persno')->nullable();
        $table->string('new_ic')->unique();
        $table->string('company_id')->nullable();
        $table->integer('orgunit')->nullable();
        $table->string('persarea',10)->nullable();
        $table->string('perssubarea',10)->nullable();
        $table->string('state_id')->nullable();
        $table->integer('reptto')->nullable();
        $table->timestamps();

    });
}

用户转移模式数据库：-

public function up()
{
    Schema::create('user_shift_patterns', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->integer('user_id');
        $table->integer('shift_pattern_id');
        $table->dateTime('start_date')->nullable();
        $table->dateTime('end_date')->nullable();
        $table->string('sap_code', 20);
        $table->integer('created_by')->default(0);
        $table->string('source','5')->default('SAP');
        $table->dateTime('upd_sap')->nullable();
        $table->timestamps();
    });
}