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Qiang Xue
2011-12-27 17:33:51 -05:00
parent 3301b9d6b2
commit 1dd651df51
4 changed files with 14 additions and 110 deletions
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1
framework/db/dao/Driver.php
View File

@ -29,6 +29,7 @@ abstract class Driver extends \yii\base\Object
/** /**
* The followings are the supported abstract column data types. * The followings are the supported abstract column data types.
*/ */
const TYPE_PK = 'pk';
const TYPE_STRING = 'string'; const TYPE_STRING = 'string';
const TYPE_TEXT = 'text'; const TYPE_TEXT = 'text';
const TYPE_SMALLINT = 'smallint'; const TYPE_SMALLINT = 'smallint';

107
framework/db/dao/mysql/ColumnSchema.php
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@ -1,107 +0,0 @@
<?php
/**
* ColumnSchema class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2012 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\db\dao\mysql;
/**
* ColumnSchema class describes the meta data of a MySQL table column.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class ColumnSchema extends \yii\db\dao\ColumnSchema
{
/**
* Extracts the PHP type from DB type.
* @param string $dbType DB type
*/
public function initTypes($dbType)
{
static $typeMap = array( // dbType => type
'tinyint' => self::TYPE_SMALLINT,
'bit' => self::TYPE_SMALLINT,
'smallint' => self::TYPE_SMALLINT,
'mediumint' => self::TYPE_INTEGER,
'int' => self::TYPE_INTEGER,
'integer' => self::TYPE_INTEGER,
'bigint' => self::TYPE_BIGINT,
'float' => self::TYPE_FLOAT,
'double' => self::TYPE_FLOAT,
'real' => self::TYPE_FLOAT,
'decimal' => self::TYPE_DECIMAL,
'numeric' => self::TYPE_DECIMAL,
'tinytext' => self::TYPE_TEXT,
'mediumtext' => self::TYPE_TEXT,
'longtext' => self::TYPE_TEXT,
'text' => self::TYPE_TEXT,
'varchar' => self::TYPE_STRING,
'string' => self::TYPE_STRING,
'char' => self::TYPE_STRING,
'datetime' => self::TYPE_DATETIME,
'year' => self::TYPE_DATE,
'date' => self::TYPE_DATE,
'time' => self::TYPE_TIME,
'timestamp' => self::TYPE_TIMESTAMP,
'enum' => self::TYPE_STRING,
);
$this->dbType = $dbType;
$this->type = self::TYPE_STRING;
$this->unsigned = strpos($this->dbType, 'unsigned') !== false;
if (preg_match('/^(\w+)(?:\(([^\)]+)\))?/', $this->dbType, $matches)) {
$type = $matches[1];
if (isset($typeMap[$type])) {
$this->type = $typeMap[$type];
}
if (!empty($matches[2])) {
if ($type === 'enum') {
$values = explode(',', $matches[2]);
foreach ($values as $i => $value) {
$values[$i] = trim($value, "'");
}
$this->enumValues = $values;
} else {
$values = explode(',', $matches[2]);
$this->size = $this->precision = (int)$values[0];
if (isset($values[1])) {
$this->scale = (int)$values[1];
}
if ($this->size === 1 && ($type === 'tinyint' || $type === 'bit')) {
$this->type = 'boolean';
} elseif ($type === 'bit') {
if ($this->size > 32) {
$this->type = 'bigint';
} elseif ($this->size === 32) {
$this->type = 'integer';
}
}
}
}
}
$this->phpType = $this->extractPhpType();
}
/**
* Extracts the default value for the column.
* The value is typecast to correct PHP type.
* @param mixed $defaultValue the default value obtained from metadata
*/
public function initDefaultValue($defaultValue)
{
if ($this->type === 'timestamp' && $defaultValue === 'CURRENT_TIMESTAMP') {
$this->defaultValue = null;
} else {
$this->defaultValue = $this->typecast($defaultValue);
}
}
}

12
framework/db/dao/mysql/Driver.php
View File

@ -22,7 +22,7 @@ use yii\db\dao\ColumnSchema;
class Driver extends \yii\db\dao\Driver class Driver extends \yii\db\dao\Driver
{ {
/** /**
* @var array mapping from physical types (keys) to abstract types (values) * @var array mapping from physical column types (keys) to abstract column types (values)
*/ */
public $typeMap = array( // dbType => type public $typeMap = array( // dbType => type
'tinyint' => self::TYPE_SMALLINT, 'tinyint' => self::TYPE_SMALLINT,
@ -260,4 +260,14 @@ class Driver extends \yii\db\dao\Driver
} }
return $names; return $names;
} }
/**
* Creates a query builder for the database.
* This method may be overridden by child classes to create a DBMS-specific query builder.
* @return QueryBuilder query builder instance
*/
public function createQueryBuilder()
{
return new QueryBuilder($this->connection);
}
} }

4
framework/db/dao/mysql/QueryBuilder.php
View File

@ -19,10 +19,10 @@ namespace yii\db\dao\mysql;
class QueryBuilder extends \yii\db\dao\QueryBuilder class QueryBuilder extends \yii\db\dao\QueryBuilder
{ {
/** /**
* @var array the abstract column types mapped to physical column types. * @var array mapping from abstract column types (keys) to physical column types (values).
*/ */
public $typeMap = array( public $typeMap = array(
'pk' => 'int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY', Driver::TYPE_PK => 'int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY',
Driver::TYPE_STRING => 'varchar(255)', Driver::TYPE_STRING => 'varchar(255)',
Driver::TYPE_TEXT => 'text', Driver::TYPE_TEXT => 'text',
Driver::TYPE_SMALLINT => 'smallint(6)', Driver::TYPE_SMALLINT => 'smallint(6)',