/
SqliteSchema.php
132 lines (121 loc) · 3.42 KB
/
SqliteSchema.php
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<?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;
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.
*
* @return array An array of with the key/values of schema data.
*/
public function convertFieldDescription($row, $fieldParams = []) {
list($type, $length) = $this->convertColumn($row['type']);
$schema = [];
$schema[$row['name']] = [
'type' => $type,
'null' => !$row['notnull'],
'default' => $row['dflt_value'] === null ? null : trim($row['dflt_value'], "'"),
'length' => $length,
];
if ($row['pk'] == true) {
$schema[$row['name']]['key'] = 'primary';
$schema[$row['name']]['null'] = false;
}
return $schema;
}
}