wkshi/app/Admin/Controllers/ExamargController.php

<?php

namespace App\Admin\Controllers;

use App\Exam;
use App\Examarg;
use App\Grade;
use App\School;
use App\Http\Controllers\Controller;
use App\Sclass;
use Encore\Admin\Controllers\HasResourceActions;
use Encore\Admin\Form;
use Encore\Admin\Grid;
use Encore\Admin\Layout\Content;
use Encore\Admin\Show;

class ExamargController extends Controller
{
    use HasResourceActions;

    /**
     * Index interface.
     *
     * @param Content $content
     * @return Content
     */
    public function index(Content $content)
    {
        return $content
            ->header('考试管理')
            ->description('列表')
            ->body($this->grid());
    }

    /**
     * Show interface.
     *
     * @param mixed $id
     * @param Content $content
     * @return Content
     */
    public function show($id, Content $content)
    {
        return $content
            ->header('考试管理')
            ->description('详情')
            ->body($this->detail($id));
    }

    /**
     * Edit interface.
     *
     * @param mixed $id
     * @param Content $content
     * @return Content
     */
    public function edit($id, Content $content)
    {
        return $content
            ->header('考试管理')
            ->description('编辑')
            ->body($this->form()->edit($id));
    }

    /**
     * Create interface.
     *
     * @param Content $content
     * @return Content
     */
    public function create(Content $content)
    {
        return $content
            ->header('考试管理')
            ->description('创建')
            ->body($this->form());
    }

    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        $grid = new Grid(new Examarg);

        $grid->id('编号');
        $grid->name('名称');
        $grid->exam_name('试卷名称')->display(function () {
            $name = Exam::where('id', $this->exam_id)->select('name')->first();
            if ($name) {
                return $name['name'];
            }
            return null;
        });
        $grid->exam_time('考试时长');
        $grid->exam_start('开考时间');
        $grid->exam_end('结束时间');
        $grid->created_at('创建时间');
        $grid->updated_at('更新时间');

        $grid->disableExport();
        $grid->actions(function (Grid\Displayers\Actions $actions) {
            $actions->disableView();
        });

        return $grid;
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     * @return Show
     */
    protected function detail($id)
    {
        $show = new Show(Examarg::findOrFail($id));

        $show->id('编号');
        $show->exam_id('试卷编号');
        $show->exam_name('试卷名称')->as(function () {
            $name = Exam::where('id', $this->exam_id)->select("name")->first();
            if ($name) {
                return $name['name'];
            }
        });
        $show->exam_time('考试时长');
        $show->exam_start('开考时间');
        $show->exam_end('结束时间');
        $show->school_name('学校名称')->as(function () {
            $name = School::where('id', $this->school_id)->select("name")->first();
            if ($name) {
                return $name['name'];
            }
        });

        $show->grade_name('年级名称')->as(function () {
            $name = Grade::where('id', $this->sclass_id)->select("name")->first();
            if ($name) {
                return $name['name'];
            }
        });

        $show->class_name('班级名称')->unescape()->as(function () {

            $names = Sclass::select('name')->find($this->sclass_id);
            $titleshow = "";
            foreach ($names as $name => $value) {
                $titleshow = $titleshow . $value['name'] . '<br/>';
            }
            return $titleshow;
        });
        $show->created_at('创建时间');
        $show->updated_at('更新时间');

        return $show;
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        $form = new Form(new Examarg);

        $form->text('name', '设置名称')->rules('required');
        $form->textarea('remark', '考试备注信息')->rules('required');
        $form->select('exam_id', '试卷名称')->options('/admin/api/getExams');
        $form->text('exam_time', '考试时长')->help('单位：分钟')->rules('required');
        $form->datetime('exam_start', '开考时间')->default(date('Y-m-d H:i:s'));
        $form->datetime('exam_end', '结束时间')->default(date('Y-m-d H:i:s'));
        $form->select('school_id', '学校')->options(
            School::pluck("name", 'id')
        )->load('sclass_id', '/admin/api/getClassApi')->rules('required');
        $form->select('grade_id', '年级')->options(Grade::pluck("name", 'id')->toArray())->rules('required');

        $form->multipleSelect('sclass_id', '班级编号')->options(Sclass::pluck("name", 'id')->toArray())->rules('required');


        $form->disableViewCheck();
        $form->disableEditingCheck();
        $form->disableCreatingCheck();
        $form->tools(function (Form\Tools $tools) {
            $tools->disableView();
        });

        return $form;
    }
}