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app/model/system/Database.php

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+<?php
+/**
+ * Niushop商城系统 - 团队十年电商经验汇集巨献!
+ * =========================================================
+ * Copy right 2019-2029 杭州牛之云科技有限公司, 保留所有权利。
+ * ----------------------------------------------
+ * 官方网址: https://www.niushop.com
+
+ * =========================================================
+ */
+
+namespace app\model\system;
+
+use think\facade\Db;
+use app\model\BaseModel;
+
+/**
+ * 数据库操作
+ */
+class Database extends BaseModel
+{
+
+    public $backup_path = __UPLOAD__ . '/dbsql';
+
+    /***********************************************************SQL开始*********************************************************/
+
+    /**
+     * 修复表
+     */
+    public function repair($tables)
+    {
+        if ($tables) {
+            Db::startTrans();
+            try {
+                if (is_array($tables)) {
+                    $tables = implode('`,`', $tables);
+                    Db::query("REPAIR TABLE `{$tables}`");
+                } else {
+                    Db::query("REPAIR TABLE `{$tables}`");
+                }
+                Db::commit();
+                return $this->success(1);
+            } catch (\Exception $e) {
+                // 回滚事务
+                Db::rollback();
+                return $this->error('', "DABASE_REPAIR_FAIL");
+            }
+        } else {
+            return $this->error('', "DABASE_REPAIR_FAIL");
+        }
+    }
+
+    /**
+     * 优化表
+     */
+    public function optimize($tables)
+    {
+        if ($tables) {
+            if (is_array($tables)) {
+                $tables = implode('`,`', $tables);
+                $list   = Db::query("OPTIMIZE TABLE `{$tables}`");
+                if ($list) {
+
+                    return $this->success(1);
+                } else {
+                    return $this->error('', "DATABASE_OPTIMIZE_FAIL");
+                }
+            } else {
+                $list = Db::query("OPTIMIZE TABLE `{$tables}`");
+                if ($list) {
+                    return $this->success(1);
+                } else {
+                    return $this->error('', "DATABASE_OPTIMIZE_FAIL");
+                }
+            }
+        } else {
+            return $this->error('', "REQUEST_DATABASE_TABLE");
+        }
+    }
+
+    private function sql_execute($sql, $is_debug)
+    {
+        if (trim($sql) != '') {
+            $sql       = str_replace("\r\n", "\n", $sql);
+            $sql       = str_replace("\r", "\n", $sql);
+            $sql_array = explode(";\n", $sql);
+            if (!$is_debug) {
+                Db::startTrans();
+            }
+            try {
+                foreach ($sql_array as $item) {
+                    if ($is_debug) {
+                        Db::startTrans();
+                    }
+                    $querySql = trim($item);
+                    if ($querySql != '') {
+                        @Db::execute($querySql . ";");
+                        if ($is_debug) {
+                            Db::rollback();
+                        }
+                    }
+                }
+                if (!$is_debug) {
+                    Db::commit();
+                }
+                return $this->success(1);
+            } catch (\Exception $e) {
+                Db::rollback();
+                return $this->error($e->getMessage());
+            }
+        } else {
+            return $this->error('');
+        }
+    }
+
+    /**
+     * 执行sql
+     */
+    public function sqlQuery($sql)
+    {
+        $result = $this->sql_execute($sql, false);
+        return $result;
+    }
+
+    public function yujjia($sql)
+    {
+        Db::startTrans();
+        try {
+            Db::query($sql);
+            Db::rollback();
+            return "1";
+        } catch (\Exception $e) {
+            Db::rollback();
+            return $this->error($e->getMessage());
+        }
+
+    }
+
+    /**
+     * 查询所有表
+     */
+    public function getDatabaseList()
+    {
+        $databaseList = Db::query("SHOW TABLE STATUS");
+        return $databaseList;
+    }
+
+    /**备份数据库语句
+     * @return string
+     */
+    public function backupSql($tables, $id, $start)
+    {
+
+    }
+
+    public function getTableSchemas($table)
+    {
+        $mysql                    = "DROP TABLE IF EXISTS `$table`;\r\n";
+        $temp_create_table_result = Db::query("show create table `$table`");
+        $create_table             = $temp_create_table_result[0]['Create Table'];
+        $mysql                    .= $create_table . ";\r\n";
+        return $mysql;
+    }
+
+    public function getTableInsertSql($tablename, $start, $size)
+    {
+        $data   = '';
+        $tmp    = '';
+        $sql    = "SELECT * FROM `{$tablename}` LIMIT {$start}, {$size}";
+        $result = Db::query($sql);
+        if (!empty($result)) {
+            foreach ($result as $row) {
+                $tmp .= '(';
+                foreach ($row as $k => $v) {
+                    $value = str_replace(array('\\', "\0", "\n", "\r", "'", '"', "\x1a"), array('\\\\', '\\0', '\\n', '\\r', "\\'", '\\"', '\\Z'), $v);
+                    $tmp   .= "'" . $value . "',";
+                }
+                $tmp = rtrim($tmp, ',');
+                $tmp .= "),\n";
+            }
+            $tmp   = rtrim($tmp, ",\n");
+            $data  .= "INSERT INTO `{$tablename}` VALUES \n{$tmp};\n";
+            $datas = array(
+                'data'   => $data,
+                'result' => $result,
+            );
+            return $datas;
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * 格式化字节大小
+     *
+     * @param number $size
+     *            字节数
+     * @param string $delimiter
+     *            数字和单位分隔符
+     * @return string 格式化后的带单位的大小
+     * @author
+     *
+     */
+    public function format_bytes($size, $delimiter = '')
+    {
+        $units = array(
+            'B',
+            'KB',
+            'MB',
+            'GB',
+            'TB',
+            'PB'
+        );
+        for ($i = 0; $size >= 1024 && $i < 5; $i++)
+            $size /= 1024;
+        return round($size, 2) . $delimiter . $units[$i];
+    }
+
+    /**
+     * 多维数组排序
+     */
+    public function my_array_multisort($data, $sort_order_field, $sort_order = SORT_DESC, $sort_type = SORT_NUMERIC)
+    {
+        foreach ($data as $val) {
+            $key_arrays[] = $val[$sort_order_field];
+        }
+        array_multisort($key_arrays, $sort_order, $sort_type, $data);
+        return $data;
+    }
+
+
+    /***********************************************************SQL结束*********************************************************/
+
+}