jucai/app/Admin/Controllers/Content/ArticleCategoryController.php

<?php

namespace App\Admin\Controllers\Content;

use App\Admin\Extensions\Form\ValidateForm;
use App\Http\Controllers\Controller;
use App\Models\ArticleCategory;
use App\Models\ArticleCategoryRole;
use App\Models\Role;
use Encore\Admin\Controllers\HasResourceActions;
use Encore\Admin\Facades\Admin as userAdmin;
use Encore\Admin\Form;
use Encore\Admin\Grid;
use Encore\Admin\Layout\Column;
use Encore\Admin\Layout\Content;
use Encore\Admin\Layout\Row;
use Encore\Admin\Show;
use Encore\Admin\Tree;
use Encore\Admin\Widgets\Box;

//use Encore\Admin\Facades\Admin;
class ArticleCategoryController extends Controller
{
    use HasResourceActions;

    /**
     * Index interface.
     *
     * @param Content $content
     * @return Content
     */
    public function index(Content $content)
    {
        return $content
            ->header(trans('新闻分类'))
            ->description(trans('系统默认分类不能删除！删除顶级级分类将会自动删除此分类下的子分类。'))
            ->row(function (Row $row) {
                if (userAdmin::user()->can('content_article_category_create')) {
                    $row->column(6, $this->treeView()->render());
                    $row->column(6, function (Column $column) {
                        $form = new \Encore\Admin\Widgets\Form();
                        $form->action(route('article.category.index'));
                        $form->text('category_name', '名称')->setMustMark();
                        $cate_option = ArticleCategory::where(array('parent_id'=>0))->OrderBy('list_order', 'DESC')->orderBy('created_at', 'DESC')->pluck('category_name', 'id');
                        $cate_option = $cate_option->toArray();
                        $cate_option = array('0'=>'顶级分类')+$cate_option;
                        $form->select('parent_id', '所属分类')->options($cate_option)->default(0)->setMustMark();
                        $form->number('list_order', '排序')->min(0)->default(0)->help('（数字越大越靠前）')->setMustMark();
                        $form->multipleSelect('roles', trans('admin.roles'))->options(Role::all()->pluck('name', 'id'));
                        $form->text('title', 'Title')->help('（不填则为分类名称）');
                        $form->text('keywords', 'Keywords')->placeholder('合理设置Keywords有利于搜索引擎排名');
                        $form->textarea('description', 'Description')->placeholder('合理设置Description有利于搜索引擎排名');
                        $form->hidden('admin_set')->value(0);
                        $form->hidden('_token')->default(csrf_token());
                        $form->disableReset();
                        $column->append((new Box(trans('admin.new'), $form))->style('success'));
                    });
                } else {
                    $row->column(12, $this->treeView()->render());
                }
            });
    }

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

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

    /**
     * Create interface.
     *
     * @param Content $content
     * @return Content
     */
    public function create(Content $content)
    {
        return $content
            ->header('新闻分类')
            ->description(' ')
            ->body($this->form());
    }

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

        $grid->id('ID');
        $grid->created_at('添加时间');
        $grid->updated_at('更新时间');

        return $grid;
    }

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

        $show->id('ID');
        $show->category_name('名称');
        $show->parent_id('所属分类')->as(function ($parent_id) {
            $category_name = '顶级分类';
            if ($parent_id) {
                $cate_info = ArticleCategory::where('id', $parent_id)->first();
                if ($cate_info) {
                    $category_name = $cate_info->category_name;
                } else {
                    $category_name = '';
                }
            }
            return $category_name;
        });
        $show->list_order('排序');

        $show->roles(trans('admin.roles'))->as(function ($role) {
            return $role->pluck('name');
        })->label();

        $show->title('Title');
        $show->keywords('Keywords');
        $show->description('Description');
        $show->admin_set('系统分类')->as(function ($admin_set) {
            return $admin_set?'是':'否';
        });
        $show->created_at('添加时间');
        $show->updated_at('更新时间');

        return $show;
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        $form = new ValidateForm(new ArticleCategory);
        $form->text('category_name', '名称')->rules('required|max:15', array('required'=>'名称不能为空。', 'max'=>'名称长度不能超过15。'))->setWidth(4)->setMustMark();
        $cate_option = ArticleCategory::where(array('parent_id'=>0))->OrderBy('list_order', 'DESC')->orderBy('created_at', 'DESC')->get()->pluck('category_name', 'id');
        $cate_option = $cate_option->toArray();
        $cate_option = array('0'=>'顶级分类')+$cate_option;
        $form->select('parent_id', '所属分类')->options($cate_option)->default(0)->rules('required', array('required'=>'请选择所属分类。'))->setWidth(4)->setMustMark();
        $form->number('list_order', '排序')
             ->min(0)->default(0)
             ->rules('required', array('required'=>'排序不能为空。'))
             ->help('（数字越大越靠前）')
             ->setMustMark();
        $form->multipleSelect('roles', trans('admin.roles'))->options(Role::all()->pluck('name', 'id'));
        $form->text('title', 'Title')->help('（不填则为分类名称）')->rules('max:25', array('max'=>'Title长度不能大于25。'))->setWidth(4);
        $form->text('keywords', 'Keywords')
             ->placeholder('合理设置Keywords有利于搜索引擎排名')
             ->rules('max:25', array('max'=>'Keywords长度不能大于25。'));
        $form->textarea('description', 'Description')
             ->rules('max:25', array('max'=>'Description长度不能大于25。'))
             ->placeholder('合理设置Description有利于搜索引擎排名');
        $form->hidden('admin_set');
        $form->saving(function (Form $form) {
            $form->admin_set = $form->admin_set?$form->admin_set:0;
        });
        $form->footer(function ($footer) {
            $footer->disableViewCheck();
            $footer->disableEditingCheck();
            $footer->disableCreatingCheck();
            $footer->disableReset();
        });
        $form->tools(function (Form\Tools $tools) {
            $tools->disableDelete();
            $tools->disableView();
        });
        return $form;
    }

    public function stores()
    {
        $data=$this->form()->getValidateInput();
        $cate = new ArticleCategory();
        $cate->category_name = $data['category_name'];
        $cate->parent_id     = $data['parent_id'];
        $cate->list_order    = $data['list_order'];
        $cate->title          = $data['title'];
        $cate->keywords       = $data['keywords'];
        $cate->description    = $data['description'];
        $cate->admin_set      = $data['admin_set']?$data['admin_set']:'0';

        if ($cate->save()) {
            $cate_id = $cate->id;
            $roles = $data['roles'];
            $time = date('Y-m-d H:i:s', time());
            $role_data = array();
            if ($roles) {
                foreach ($roles as $k => $v) {
                    $role_data[] = array(
                        'role_id'=> $v,
                        'article_category_id' => $cate_id,
                        'created_at' => $time,
                        'updated_at' => $time
                    );
                }
                ArticleCategoryRole::insert($role_data);
            }
            admin_toastr(trans('admin.save_succeeded'));
            return redirect(admin_base_path('/content/article/category'));
        } else {
            throw new \Exception(trans('admin.save_failed'));
        }
    }

    /**
     * Make a grid builder.
     *
     * @return Tree
     */
    protected function treeView()
    {
        return ArticleCategory::tree(function (Tree $tree) {
            $tree->disableRefresh();
            $tree->disableSave();

            $tree->branch(function ($branch) {
                return "{$branch['category_name']} (id:{$branch['id']})";
            });
            $tree->setView(array(
                'tree'   => 'admin::tree',
                'branch' => 'admin.content.article_branch'
            ));
            $tree->query(function ($model) {
                $not_ids = ArticleCategory::categoryIds();
                if ($not_ids) {
                    return $model->whereNotIn('id', $not_ids)->OrderBy('list_order', 'DESC')->orderBy('created_at', 'DESC');
                } else {
                    return $model->OrderBy('list_order', 'DESC')->orderBy('created_at', 'DESC');
                }
            });
        });
    }
    public function destroy($id)
    {
        $id_arr =  explode(',', $id);
        $children_ids = ArticleCategory::whereIn('parent_id', $id_arr)->select('id')->get()->pluck('id')->toArray();
        if ($children_ids) {
            $children_ids = implode(',', $children_ids);
        } else {
            $children_ids = '';
        }
        if ($this->form()->destroy($id)) {
            $data = [
                'status'  => true,
                'message' => trans('admin.delete_succeeded'),
            ];
            //删除分类与角色的对应关系
            if ($children_ids) {
                $where = array();
                $ids = explode(',', $children_ids);
                ArticleCategoryRole::whereIn('article_category_id', $ids)->delete();
            }
        } else {
            $data = [
                'status'  => false,
                'message' => trans('admin.delete_failed'),
            ];
        }
        return response()->json($data);
    }
}