/
SqliteSchema.php
140 lines (128 loc) · 3.68 KB
/
SqliteSchema.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
<?php
/**
* PHP Version 5.4
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since CakePHP(tm) v 3.0.0
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
namespace Cake\Database\Schema;
use Cake\Database\Schema\Table;
class SqliteSchema {
/**
* The driver instance being used.
*
* @var Cake\Database\Driver\Sqlite
*/
protected $driver;
public function __construct($driver) {
$this->_driver = $driver;
}
/**
* Convert a column definition to the abstract types.
*
* The returned type will be a type that
* Cake\Database\Type can handle.
*
* @param string $column The column type + length
* @throws Cake\Error\Exception
* @return array List of (type, length)
*/
public function convertColumn($column) {
preg_match('/([a-z]+)(?:\(([0-9,]+)\))?/i', $column, $matches);
if (empty($matches)) {
throw new Error\Exception(__d('cake_dev', 'Unable to parse column type from "%s"', $column));
}
$col = strtolower($matches[1]);
$length = null;
if (isset($matches[2])) {
$length = (int)$matches[2];
}
if ($col === 'bigint') {
return ['biginteger', $length];
}
if (in_array($col, ['blob', 'clob'])) {
return ['binary', null];
}
if (in_array($col, ['date', 'time', 'timestamp', 'datetime'])) {
return [$col, null];
}
if (strpos($col, 'decimal') !== false) {
return ['decimal', null];
}
if (strpos($col, 'boolean') !== false) {
return ['boolean', null];
}
if (strpos($col, 'int') !== false) {
return ['integer', $length];
}
if (strpos($col, 'char') !== false) {
return ['string', $length];
}
if (in_array($col, ['float', 'real', 'double'])) {
return ['float', null];
}
return ['text', null];
}
/**
* Get the SQL to list the tables in Sqlite
*
* @param array $config The connection configuration to use for
* getting tables from.
* @return array An array of (sql, params) to execute.
*/
public function listTablesSql() {
return ["SELECT name FROM sqlite_master WHERE type='table' ORDER BY name", []];
}
/**
* Get the SQL to describe a table in Sqlite.
*
* @param string $table The table name to describe
* @return array An array of (sql, params) to execute.
*/
public function describeTableSql($table) {
return ["PRAGMA table_info(" . $this->_driver->quoteIdentifier($table) . ")", []];
}
/**
* Additional metadata columns in table descriptions.
*
* @return array
*/
public function extraSchemaColumns() {
return [];
}
/**
* Convert field description results into abstract schema fields.
*
* @param Cake\Database\Schema\Table $table The table object to append fields to.
* @param array $row The row data from describeTableSql
* @param array $fieldParams Additional field parameters to parse.
*/
public function convertFieldDescription(Table $table, $row, $fieldParams = []) {
list($type, $length) = $this->convertColumn($row['type']);
$field = [
'type' => $type,
'null' => !$row['notnull'],
'default' => $row['dflt_value'] === null ? null : trim($row['dflt_value'], "'"),
'length' => $length,
];
if ($row['pk'] == true) {
$field['null'] = false;
}
$table->addColumn($row['name'], $field);
if ($row['pk'] == true) {
$table->addIndex('primary', [
'type' => Table::INDEX_PRIMARY,
'columns' => [$row['name']]
]);
}
}
}