初始化项目

core/library/think/db/builder/Sqlsrv.php

@@ -0,0 +1,88 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace think\db\builder;
+
+use think\db\Builder;
+
+/**
+ * Sqlsrv数据库驱动
+ */
+class Sqlsrv extends Builder
+{
+    protected $selectSql = 'SELECT T1.* FROM (SELECT thinkphp.*, ROW_NUMBER() OVER (%ORDER%) AS ROW_NUMBER FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%) AS thinkphp) AS T1 %LIMIT%%COMMENT%';
+    protected $selectInsertSql = 'SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%';
+    protected $updateSql = 'UPDATE %TABLE% SET %SET% %JOIN% %WHERE% %LIMIT% %LOCK%%COMMENT%';
+    protected $deleteSql = 'DELETE FROM %TABLE% %USING% %JOIN% %WHERE% %LIMIT% %LOCK%%COMMENT%';
+
+    /**
+     * order分析
+     * @access protected
+     * @param mixed $order
+     * @return string
+     */
+    protected function parseOrder($order)
+    {
+        return !empty($order) ? ' ORDER BY ' . $order : ' ORDER BY rand()';
+    }
+
+    /**
+     * 随机排序
+     * @access protected
+     * @return string
+     */
+    protected function parseRand()
+    {
+        return 'rand()';
+    }
+
+    /**
+     * 字段名分析
+     * @access protected
+     * @param string $key
+     * @return string
+     */
+    protected function parseKey($key)
+    {
+        $key = trim($key);
+        if (!is_numeric($key) && !preg_match('/[,\'\"\*\(\)\[.\s]/', $key)) {
+            $key = '[' . $key . ']';
+        }
+        return $key;
+    }
+
+    /**
+     * limit
+     * @access protected
+     * @param mixed $limit
+     * @return string
+     */
+    protected function parseLimit($limit)
+    {
+        if (empty($limit)) {
+            return '';
+        }
+
+        $limit = explode(',', $limit);
+        if (count($limit) > 1) {
+            $limitStr = '(T1.ROW_NUMBER BETWEEN ' . $limit[0] . ' + 1 AND ' . $limit[0] . ' + ' . $limit[1] . ')';
+        } else {
+            $limitStr = '(T1.ROW_NUMBER BETWEEN 1 AND ' . $limit[0] . ")";
+        }
+        return 'WHERE ' . $limitStr;
+    }
+     public function selectInsert($fields, $table, $options)
+    {
+        $this->selectSql=$this->selectInsertSql;
+        return parent::selectInsert($fields, $table, $options);
+    }
+
+}