minongyun.com/application/admin/controller/stock/Goodscategory.php

<?php

namespace app\admin\controller\stock;

use app\common\controller\Backend;
use think\Db;
use fast\Tree;

/**
 * 商品分类
 *
 * @icon fa fa-circle-o
 */
class Goodscategory extends Backend {

    /**
     * StockGoodscategory模型对象
     * @var \app\admin\model\stock\Goodscategory
     */
    protected $noNeedRight = ['madevalue', 'getjsTree', 'category'];
    protected $model = null;
    protected $categoryList = [];

    public function _initialize() {
        parent::_initialize();
        $this->model = model('\app\admin\model\stock\Goodscategory');
        $goodsCategoryList = collection($this->model->select())->toArray();
        Tree::instance()->init($goodsCategoryList);

        $goodsCategory = [];
        $this->categoryList = Tree::instance()->getTreeList(Tree::instance()->getTreeArray(0), 'name');
        $primary = array(array('name' => '无', 'id' => '0'));
        $result = array_merge_recursive($primary, $this->categoryList);
        foreach ($result as $k => $v) {
            $goodsCategory[$v['id']] = $v['name'];
        }

        $this->view->assign("goodsCategory", $goodsCategory);
    }

    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */

    /**
     * 查看
     */
    public function index() {
        if ($this->request->isAjax()) {
            $list = $this->categoryList;
            $total = count($this->categoryList);

            $result = array("total" => $total, "rows" => $list);

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 添加
     */
    public function add() {
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                    $params[$this->dataLimitField] = $this->auth->id;
                }
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : true) : $this->modelValidate;
                        $this->model->validate($validate);
                    }
                    $result = $this->model->allowField(true)->save($params);
                    if ($result !== false) {
                        $this->success();
                    } else {
                        $this->error($this->model->getError());
                    }
                } catch (\think\exception\PDOException $e) {
                    $this->error($e->getMessage());
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $result = $this->model->where('pid', 0)->order('value desc')->limit(1)->select();
        if ($result) {
            $suffix = (int) ($result[0]['value']);
            $suffix ++;
        } else {
            $suffix = 0;
        }
        $value = sprintf("%02d", $suffix);
        $this->view->assign('value', $value);
        return $this->view->fetch();
    }

    /**
     * 根据商品类别生成商品代码
     */
    public function madevalue() {
        if ($this->request->isPost()) {
            $id = $this->request->post('id');
            if ($id || $id == 0) {
                try {
                    $result = $this->model->where('pid', $id)->field('value')->order('value desc')->limit(1)->select();
                    $value = '';
                    if (count($result) > 0) {
                        $suffix = (int) (substr($result[0]['value'], -2));
                        $suffix ++;
                        $suffix = sprintf("%02d", $suffix); //数字自动补零
                        $prefix = substr($result[0]['value'], 0, -2);
                        $value = $prefix . $suffix;
                    } else {
                        $result = $this->model->where('id', $id)->field('value')->order('value desc')->limit(1)->select();
                        if (count($result) > 0) {
                            $value = $result[0]['value'] . '.01';
                        } else {
                            $value = '01';
                        }
                    }
                    $this->success("获取成功！","", ["code" => $value]);
                } catch (\think\exception\PDOException $e) {
                    $this->error($e->getMessage());
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $this->error('只接受POST请求', '');
    }

    /**
     * 获取商品类别树
     */
    public function getjsTree() {
        $categoryList = collection($this->model->select())->toArray();
        $result = [];
        foreach ($categoryList as $k => $v) {
            $n = [];
            $n['id'] = $v['id'];
            $n['parent'] = $v['pid'] == 0 ? "#" : $v['pid'];
            $n['text'] = $v['name'];
            $n['type'] = $v['id'];
            $n['data'] = $v;
            $n['state'] = ["opend" => true, "disabled" => false, "selected" => true];
            $result[] = $n;
        }
        return json($result);
    }

    /**
     * 获取商品类别名称
     */
    public function category() {
        $result = collection($this->model->select())->toArray();
        return json($result);
    }

    /**
     * 编辑
     */
    public function edit($ids = null) {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            if (!in_array($row[$this->dataLimitField], $adminIds)) {
                $this->error(__('You have no permission'));
            }
        }
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);
                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                        $row->validateFailException(true)->validate($validate);
                    }
                    $result = $row->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were updated'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }

    /**
     * 删除
     */
    public function del($ids = "") {
        if ($ids) {
            $pk = $this->model->getPk();
            $adminIds = $this->getDataLimitAdminIds();
            if (is_array($adminIds)) {
                $this->model->where($this->dataLimitField, 'in', $adminIds);
            }
            $list = $this->model->where($pk, 'in', $ids)->select();

            $count = 0;
            Db::startTrans();
            try {
                foreach ($list as $k => $v) {
                    $goodscount = model('\app\admin\model\stock\Goods')->where("goodscategoryid", $v->id)->count();
                    if ($goodscount > 0) {
                        $this->error("当前分类下面包含" . $goodscount . "种商品,禁止删除！");
                    }
                    $count += $v->delete();
                }
                Db::commit();
            } catch (PDOException $e) {
                Db::rollback();
                $this->error($e->getMessage());
            } catch (Exception $e) {
                Db::rollback();
                $this->error($e->getMessage());
            }
            if ($count) {
                $this->success();
            } else {
                $this->error(__('No rows were deleted'));
            }
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

}