如何显示来自 Laravel 控制器的变量以查看具有特定索引的 javascript

Question

我想从 laravel 控制器传递变量索引以查看 javascript 区域，以便我可以创建图表

我的控制器

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

class EventDashboardController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        $titles = GenderSeries::select('titles','numbers')->get();
        return view('events.dashboard',compact('titles'));
    }
}

和我的视图文件

@extends('layouts.templates.event')
@section('title','Store Dashboard')
@section('content')

    <div class="row">
        <div class="col-md-4">
            <div class="card">
                <div class="card-body">
                    <canvas id="genderCount" width="100%" height="80"></canvas>
                </div>
            </div>
        </div>
        <div class="col-md-4">
            <div class="card">
                <div class="card-body">
                    <canvas id="genderTitle" width="100%" height="80"></canvas>
                </div>
            </div>
        </div>
    </div>
@endsection

@section('scripts')
    <script>
        //Show graph of individuals count by gender
        var ctx = document.getElementById('genderTitle');
        var myChart = new Chart(ctx, {
            type: 'bar',
            data: {
                labels: {!! $titles !!},
                datasets: [{
                    label: '# Gender Series',
                    data:{!! $titles !!},
                }]
            },
            options: {
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true,
                        }
                    }]
                },
            }
        });
    </script>
@endsection

在 javascript 标签上，我想在 javascript 数据集数据上显示标题我想显示数字以制作图表。

当我尝试得到这个并查看我的源代码时

<script>
        //Show graph of individuals count by gender
        var ctx = document.getElementById('genderCount');
        var myChart = new Chart(ctx, {
            type: 'doughnut',
            data: {
                labels: [{"title":"Feminism","numbers":"50"}],
                datasets: [{
                    label: '# Individual By Gender',
                    data:[{"title":"Feminism","numbers":"50"}],
                }]
            },
            options: {
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true,
                        }
                    }]
                },

            }
        });
</script>

我需要帮助来解决这个问题

Answer 1

使用采集方式pluck():

@section('scripts')
    <script>
        //Show graph of individuals count by gender
        var ctx = document.getElementById('genderTitle');
        var myChart = new Chart(ctx, {
            type: 'bar',
            data: {
                labels: {!! $titles->pluck('title') !!},
                datasets: [{
                    label: '# Gender Series',
                    data:{!! $titles->pluck('numbers') !!},
                }]
            },
            options: {
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true,
                        }
                    }]
                },
            }
        });
    </script>
@endsection

如何显示来自 Laravel 控制器的变量以查看具有特定索引的 javascript

How to display variables from Laravel controller to view javascript with specific index

laravel

chart.js

laravel-6

chartjs-2.6.0