feat(backend): 初始化中储粮后端后台代码与数据库脚本

application/common/model/AttachmentModel.php

@@ -0,0 +1,204 @@
+<?php
+
+namespace app\common\model;
+
+use think\Model;
+
+/**
+ * 附件模型
+ * Class AttachmentModel
+ * @package app\common\model
+ */
+class AttachmentModel extends Model
+{
+    protected $name = 'attachment';
+
+    /**
+     * 获取列表
+     * @param $params
+     * @param int $rows
+     * @param int $page
+     * @param string $fields
+     * @return array
+     * @throws \think\exception\DbException
+     */
+    public function getLists($params, $rows = 20, $page = 1, $fields = '*')
+    {
+        // 条件搜索
+        if (!empty($params['where'])) {
+            $this->where($params['where']);
+        } else {
+            if (!empty($params['keyword'])) {
+                switch ($params['type']) {
+                    case 1 :
+                        $this->where(['filename' => ['LIKE', '%' . $params['keyword'] . '%']]);
+                        break;
+                }
+            }
+            if (!empty($params['nav'])) {
+                $navGroup = implode('_', $params['nav']);
+                $this->where(['nav_group' => $navGroup]);
+            }
+            if (!empty($params['nid'])) {
+                $this->where(['nid' => $params['nid']]);
+            }
+            if (!empty($params['category'])) {
+                $this->where(['category' => $params['category']]);
+            }
+            if (!empty($params['mimetype'])) {
+                $this->where(['mimetype' => ['LIKE', '' . $params['mimetype'] . '%']]);
+            }
+            // 时间范围查询
+            if (!empty($params['start_time'])) {
+                $this->where('createtime', '>=', $params['start_time']);
+            }
+            if (!empty($params['end_time'])) {
+                $this->where('createtime', '<=', $params['end_time']);
+            }
+        }
+
+        // 排序
+        $order  = !empty($params['order']) ? $params['order'] : 'id DESC';
+        $result = $this
+            ->field($fields)
+            ->order($order)
+            ->paginate($rows, false, [
+                'page' => $page
+            ]);
+
+        $arr = [
+            'list'     => [],
+            'total'    => 0,
+            'page'     => 1,
+            'pageSize' => $rows
+        ];
+        // 格式化数据信息
+        if (!$result->isEmpty()) {
+            $arr = [
+                'list'     => $result->items(),
+                'total'    => $result->total(),
+                'page'     => $result->currentPage(),
+                'pageSize' => $result->listRows()
+            ];
+            if (!empty($arr['list'])) {
+                foreach ($arr['list'] as &$v) {
+                    $v['nav_name'] = '未分类';
+                    if (!empty($v['nav_group'])) {
+                        $navGroupArr = explode('_', $v['nav_group']);
+                        if (count($navGroupArr) == 1) {
+                            $v['nav_name'] = AttachmentNavModel::where(['id' => $navGroupArr[0]])->value('name');
+                        } else {
+                            $v['nav_name'] = AttachmentNavModel::where(['id' => $navGroupArr[0]])->value('name') . ' / ' . AttachmentNavModel::where(['id' => $navGroupArr[1]])->value('name');
+                        }
+                    }
+                }
+            }
+        }
+
+        return $arr;
+    }
+
+    /**
+     * 归类
+     * @param $data
+     * @return bool|mixed
+     */
+    public function nav($data)
+    {
+        if (empty($data) || !is_array($data)) {
+            $this->error = '参数不正确';
+            return false;
+        }
+
+        return $this->transaction(function () use ($data) {
+            foreach ($data['ids'] as $v) {
+                $nid      = count($data['nav']) > 1 ? $data['nav'][1] : $data['nav'][0];
+                $navGroup = implode('_', $data['nav']);
+                $this->update([
+                    'id'        => $v,
+                    'nid'       => $nid,
+                    'nav_group' => $navGroup
+                ]);
+            }
+
+            return true;
+        });
+    }
+
+    /**
+     * 添加
+     * @param $data
+     * @return bool|int|string
+     */
+    public function add($data)
+    {
+        if (empty($data) || !is_array($data)) {
+            $this->error = '参数不正确';
+            return false;
+        }
+
+        if ($this->insertGetId($data)) {
+            return true;
+        } else {
+            $this->error = '添加出错了，请重新尝试。';
+            return false;
+        }
+    }
+
+    /**
+     * 获取某条记录
+     * @param $where
+     * @return array|bool|false|\PDOStatement|string|Model
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\ModelNotFoundException
+     * @throws \think\exception\DbException
+     */
+    public function getItem($where)
+    {
+        if (empty($where)) {
+            $this->error = '参数不正确。';
+            return false;
+        }
+        if (floor($where) > 0) {
+            $where = ['id' => $where];
+        }
+
+        return $this->where($where)->find();
+    }
+
+    /**
+     * 编辑
+     * @param $data
+     * @return bool
+     */
+    public function edit($data)
+    {
+        if (empty($data) || !is_array($data)) {
+            $this->error = '参数不正确';
+            return false;
+        }
+
+        if ($this->update($data)) {
+            return true;
+        } else {
+            $this->error = '编辑出错了，请重新尝试。';
+            return false;
+        }
+    }
+
+    // 删除
+    public function del($where)
+    {
+        if (empty($where)) {
+            $this->error = '参数不正确';
+            return false;
+        }
+
+        if ($this->where($where)->delete()) {
+            return true;
+        } else {
+            $this->error = '删除出错了，请重新尝试。';
+            return false;
+        }
+    }
+}