Question

我试图在Laravel 5.6.9中的视图中显示数据，但我一直收到此错误。

错误

代码段

TodosController

<div class="title m-b-md">
    <?php $__currentLoopData = $todos; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $todo): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?>
    <?php echo e($todo->todo); ?>
<br>

浏览器发出此错误

{{1}}

Answer 1

在您的控制器中，您必须删除return view('todos')->with('todos', $todos);变量周围的单引号：

var baseUrl = $("#base_url").val();
var currentLeave = 0;
var currentUnit ="";
var currentEmp =0;
var currentUsed=0;


$(document).ready(function () {
    $("#start_date").datepicker({
        format: 'yyyy-mm-dd',
        autoclose: true,
        todayHighlight: true
    })

    $("#end_date").datepicker({
        format: 'yyyy-mm-dd',
        autoclose: true,
        todayHighlight: true
    })
    $('#example').DataTable({
        buttons: [
            {
                 extend: 'print',className: "btn btn-default btn-sm btn-success",
                title: window.reportTitle,
            },
            {
               extend: 'excelHtml5',className: "btn btn-default btn-sm btn-primary",
                title: 'Leave Report',
            }
        ],
        "bLengthChange": false,
        "bFilter": false,
        responsive: true,
        "bSort": false,
        dom: "Bfrtip",
        destroy: true,
        searching: !0
    });
    
      $('#data1').DataTable({
        buttons: [
            {
                extend: 'print',className: "btn btn-default btn-sm btn-success",
                title: window.reportTitle,
            },
            {
               extend: 'excelHtml5',className: "btn btn-default btn-sm btn-primary",
                title: 'Leave Report',
            }
        ],
        "bLengthChange": false,
        "bFilter": false,
        responsive: true,
        "bSort": false,
        dom: "Bfrtip",
        destroy: true,
        searching: !0
    });
});


function approveLeave(id,unit,emp_id,used_leave) {
    $("#approveModal").modal('toggle');
    currentLeave = id;
    currentUnit= unit;
    currentEmp= emp_id;
    currentUsed = used_leave;
    
}

function approveNow() {
    var startDate = $("#start_date").val();
    var endDate = $("#end_date").val();
   
    if (startDate != "" && endDate != "") {
        if (startDate < endDate) {
            var csrf_token = $('meta[name="csrf-token"]').attr('content');

            $.ajax({
                url: baseUrl + "/approve-leave",
                method: "POST",
                data: {id:currentLeave, _token: csrf_token, status: 'Approved', start_date: startDate,unit:currentUnit,emp_id:currentEmp,used_leave:currentUsed,return_date: endDate},
                dataType: 'json',
                success: function (data) {
                    if (data.status == "success") {
                        swal({
                            title: 'Success!',
                            text: 'Data has been updated',
                            type: 'success'
                        })
                        window.location.reload();
                    } else {
                        swal({
                            title: 'Failled',
                            text: data.err_msg,
                            type: 'error'
                        })
                    }
                    window.location.reload();
                },
                error: function () {
                    swal({
                        title: 'Oops...',
                        text: 'Something went wrong!',
                        type: 'error'
                    })
                }
            });
        } else {
            swal({
                title: 'Failed',
                text: 'Start Date should less than End Date',
                type: 'error'
            })
        }
    } else {
        swal({
            title: 'Failed',
            text: 'Start date and end date required',
            type: 'error'
        })
    }

}

function rejectLeave(id) {
    var csrf_token = $('meta[name="csrf-token"]').attr('content');
    swal({
        title: 'Enter rejection reason',
        input: 'textarea',
        showCancelButton: true,
        confirmButtonColor: '#3085d6',
        cancelButtonColor: '#d33',
        confirmButtonText: 'Reject',
        cancelButtonText: 'Cancel',
        confirmButtonClass: 'btn btn-success',
        cancelButtonClass: 'btn btn-danger',
        buttonsStyling: false,
        allowOutsideClick: false,
        showLoaderOnConfirm: true,
        inputPlaceholder: 'This rejection will be sent via email to the Employee',
        preConfirm: function (textarea) {
            return new Promise(function (resolve, reject) {

                if (textarea == "") {
                    reject("Enter a comment for rejection");
                } else {
                    $.ajax({
                        url: "reject-leave",
                        type: "POST",
                        dataType: "json",
                        data: {id: id, _token: csrf_token, comment: textarea, status: 'Rejected'},
                        success: function (data) {

                            if (data.status == "success") {

                                swal({
                                    title: 'Success!',
                                    text: 'you have rejected this employee!',
                                    type: 'success'
                                })
                            } else {
                                swal({
                                    title: 'Oops...',
                                    text: data.err_msg,
                                    type: 'error'
                                })
                            }
                            window.location.reload();
                        },
                        error: function () {
                            swal({
                                title: 'Oops...',
                                text: 'Something went wrong, please try again later!',
                                type: 'error'
                            })
                        }
                    });
                }
            })
        }
    }).then(function () {
    });
}

Answer 2

您应该更改控制器代码，如：

namespace App\Http\Controllers;

use App\Todo;

use Illuminate\Http\Request;

class TodosController extends Controller 
{ 
  public function index() { 

    $todos = Todo::get(); 
    return view('todos',compact('todos'));

  } 
}

Answer 3

更明智的方法是使用紧凑型。 Compact是一个PHP函数，它创建一个包含变量及其值的数组。

返回视图时，我们可以轻松使用compact传递一些数据。

可以像这样使用契约：

$data = Data::all();
return view('viewname')->with(compact('data'));

所以在你的剧本中：

<?php
namespace App\Http\Controllers;
use\App\Todo;
use Illuminate\Http\Request;

class TodosController extends Controller {
    public function index()
    {
        $todos = Todo::all();
        return view('todos')->with(compact('todos'));

    } 
}

如果您希望按照首先尝试的方式进行，您应该这样做：

<?php
namespace App\Http\Controllers;
use\App\Todo;
use Illuminate\Http\Request;

class TodosController extends Controller {
    public function index()
    {
        $todos = Todo::all();
        return view('todos')->with('todos', $todos);

    } 
}

请注意变量$ todos周围没有撇号。

尝试显示视图时Laravel 5.6.9出错

3 个答案: