1<?php
2/**
3 * CreateProcessor.php
4 *
5 * This file implements the processor for the CREATE statements.
6 *
7 * PHP version 5
8 *
9 * LICENSE:
10 * Copyright (c) 2010-2014 Justin Swanhart and André Rothe
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. The name of the author may not be used to endorse or promote products
22 *    derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 * @author    André Rothe <andre.rothe@phosco.info>
36 * @copyright 2010-2014 Justin Swanhart and André Rothe
37 * @license   http://www.debian.org/misc/bsd.license  BSD License (3 Clause)
38 * @version   SVN: $Id$
39 *
40 */
41
42namespace PHPSQLParser\processors;
43use PHPSQLParser\utils\ExpressionType;
44
45/**
46 * This class processes the CREATE statements.
47 *
48 * @author  André Rothe <andre.rothe@phosco.info>
49 * @license http://www.debian.org/misc/bsd.license  BSD License (3 Clause)
50 *
51 */
52class CreateProcessor extends AbstractProcessor {
53
54    public function process($tokens) {
55        $result = $expr = array();
56        $base_expr = "";
57
58        foreach ($tokens as $token) {
59
60            $trim = trim($token);
61            $base_expr .= $token;
62
63            if ($trim === "") {
64                continue;
65            }
66
67            $upper = strtoupper($trim);
68            switch ($upper) {
69
70            case 'TEMPORARY':
71                // CREATE TEMPORARY TABLE
72                $result['expr_type'] = ExpressionType::TEMPORARY_TABLE;
73                $result['not-exists'] = false;
74                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
75                break;
76
77            case 'TABLE':
78                // CREATE TABLE
79                $result['expr_type'] = ExpressionType::TABLE;
80                $result['not-exists'] = false;
81                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
82                break;
83
84            case 'INDEX':
85                // CREATE INDEX
86                $result['expr_type'] = ExpressionType::INDEX;
87                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
88                break;
89
90            case 'UNIQUE':
91            case 'FULLTEXT':
92            case 'SPATIAL':
93                // options of CREATE INDEX
94                $result['base_expr'] = $result['expr_type'] = false;
95                $result['constraint'] = $upper;
96                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
97                break;
98
99            case 'IF':
100                // option of CREATE TABLE
101                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
102                break;
103
104            case 'NOT':
105                // option of CREATE TABLE
106                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
107                break;
108
109            case 'EXISTS':
110                // option of CREATE TABLE
111                $result['not-exists'] = true;
112                $expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
113                break;
114
115            default:
116                break;
117            }
118        }
119        $result['base_expr'] = trim($base_expr);
120        $result['sub_tree'] = $expr;
121        return $result;
122    }
123}
124?>