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This commit is contained in:
Qiang Xue
2011-12-27 17:28:48 -05:00
parent bcd884adb4
commit 3301b9d6b2
6 changed files with 142 additions and 48 deletions
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31
framework/db/dao/ColumnSchema.php
View File

@ -18,24 +18,6 @@ namespace yii\db\dao;
*/
class ColumnSchema extends \yii\base\Component
{
/**
* The followings are the supported abstract column data types.
*/
const TYPE_STRING = 'string';
const TYPE_TEXT = 'text';
const TYPE_SMALLINT = 'smallint';
const TYPE_INTEGER = 'integer';
const TYPE_BIGINT = 'bigint';
const TYPE_FLOAT = 'float';
const TYPE_DECIMAL = 'decimal';
const TYPE_DATETIME = 'datetime';
const TYPE_TIMESTAMP = 'timestamp';
const TYPE_TIME = 'time';
const TYPE_DATE = 'date';
const TYPE_BINARY = 'binary';
const TYPE_BOOLEAN = 'boolean';
const TYPE_MONEY = 'money';
/**
* @var string name of this column (without quotes).
*/
@ -99,9 +81,8 @@ class ColumnSchema extends \yii\base\Component
/**
* Extracts the PHP type from DB type.
* @return string PHP type name.
*/
protected function extractPhpType()
public function resolvePhpType()
{
static $typeMap = array( // logical type => php type
'smallint' => 'integer',
@ -112,13 +93,15 @@ class ColumnSchema extends \yii\base\Component
);
if (isset($typeMap[$this->type])) {
if ($this->type === 'bigint') {
return PHP_INT_SIZE == 8 && !$this->unsigned ? 'integer' : 'string';
$this->phpType = PHP_INT_SIZE == 8 && !$this->unsigned ? 'integer' : 'string';
} elseif ($this->type === 'integer') {
return PHP_INT_SIZE == 4 && $this->unsigned ? 'string' : 'integer';
$this->phpType = PHP_INT_SIZE == 4 && $this->unsigned ? 'string' : 'integer';
} else {
$this->phpType = $typeMap[$this->type];
}
return $typeMap[$this->type];
} else {
$this->phpType = 'string';
}
return 'string';
}
/**

19
framework/db/dao/Driver.php
View File

@ -26,6 +26,24 @@ use yii\db\Exception;
*/
abstract class Driver extends \yii\base\Object
{
/**
* The followings are the supported abstract column data types.
*/
const TYPE_STRING = 'string';
const TYPE_TEXT = 'text';
const TYPE_SMALLINT = 'smallint';
const TYPE_INTEGER = 'integer';
const TYPE_BIGINT = 'bigint';
const TYPE_FLOAT = 'float';
const TYPE_DECIMAL = 'decimal';
const TYPE_DATETIME = 'datetime';
const TYPE_TIMESTAMP = 'timestamp';
const TYPE_TIME = 'time';
const TYPE_DATE = 'date';
const TYPE_BINARY = 'binary';
const TYPE_BOOLEAN = 'boolean';
const TYPE_MONEY = 'money';
/**
* @var Connection the database connection
*/
@ -260,5 +278,4 @@ abstract class Driver extends \yii\base\Object
{
throw new Exception(get_class($this) . 'does not support fetching all table names.');
}
}

10
framework/db/dao/TableSchema.php
View File

@ -11,9 +11,7 @@
namespace yii\db\dao;
/**
* TableSchema is the base class for representing the metadata of a database table.
*
* It may be extended by different DBMS driver to represent DBMS-specific table metadata.
* TableSchema represents the meta data of a database table.
*
* @property array $columnNames list of column names
*
@ -22,6 +20,12 @@ namespace yii\db\dao;
*/
class TableSchema extends \yii\base\Object
{
/**
* @var string name of the catalog (database) that this table belongs to.
* Defaults to null, meaning no catalog (or the current database).
* This property is only meaningful for MSSQL.
*/
public $catalogName;
/**
* @var string name of the schema that this table belongs to.
*/

2
framework/db/dao/mysql/ColumnSchema.php
View File

@ -11,7 +11,7 @@
namespace yii\db\dao\mysql;
/**
* ColumnSchema class describes the column meta data of a MySQL table.
* ColumnSchema class describes the meta data of a MySQL table column.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0

100
framework/db/dao/mysql/Driver.php
View File

@ -11,6 +11,7 @@
namespace yii\db\dao\mysql;
use yii\db\dao\TableSchema;
use yii\db\dao\ColumnSchema;
/**
* Driver is the class for retrieving meta data from a MySQL database (version 4.1.x and 5.x).
@ -20,6 +21,37 @@ use yii\db\dao\TableSchema;
*/
class Driver extends \yii\db\dao\Driver
{
/**
* @var array mapping from physical types (keys) to abstract types (values)
*/
public $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,
);
/**
* Quotes a table name for use in a query.
* A simple table name has no schema prefix.
@ -79,7 +111,7 @@ class Driver extends \yii\db\dao\Driver
/**
* Creates a table column.
* @param array $column column metadata
* @return CDbColumnSchema normalized column metadata
* @return ColumnSchema normalized column metadata
*/
protected function createColumn($column)
{
@ -90,12 +122,69 @@ class Driver extends \yii\db\dao\Driver
$c->allowNull = $column['Null'] === 'YES';
$c->isPrimaryKey = strpos($column['Key'], 'PRI') !== false;
$c->autoIncrement = stripos($column['Extra'], 'auto_increment') !== false;
$c->initTypes($column['Type']);
$c->initDefaultValue($column['Default']);
$c->dbType = $column['Type'];
$this->resolveColumnType($c);
$c->resolvePhpType();
$this->resolveDefaultValue($c, $column['Default']);
return $c;
}
/**
* @param \yii\db\dao\ColumnSchema $column
* @param string $value
*/
protected function resolveDefaultValue($column, $value)
{
if ($column->type !== 'timestamp' || $value !== 'CURRENT_TIMESTAMP') {
$column->defaultValue = $column->typecast($value);
}
}
/**
* Extracts the PHP type from DB type.
* @param \yii\db\dao\ColumnSchema $column the column
*/
public function resolveColumnType($column)
{
$column->type = self::TYPE_STRING;
$column->unsigned = strpos($column->dbType, 'unsigned') !== false;
if (preg_match('/^(\w+)(?:\(([^\)]+)\))?/', $column->dbType, $matches)) {
$type = $matches[1];
if (isset($this->typeMap[$type])) {
$column->type = $this->typeMap[$type];
}
if (!empty($matches[2])) {
if ($type === 'enum') {
$values = explode(',', $matches[2]);
foreach ($values as $i => $value) {
$values[$i] = trim($value, "'");
}
$column->enumValues = $values;
} else {
$values = explode(',', $matches[2]);
$column->size = $column->precision = (int)$values[0];
if (isset($values[1])) {
$column->scale = (int)$values[1];
}
if ($column->size === 1 && ($type === 'tinyint' || $type === 'bit')) {
$column->type = 'boolean';
} elseif ($type === 'bit') {
if ($column->size > 32) {
$column->type = 'bigint';
} elseif ($column->size === 32) {
$column->type = 'integer';
}
}
}
}
}
}
/**
* Collects the table column metadata.
* @param \yii\db\dao\TableSchema $table the table metadata
@ -107,7 +196,7 @@ class Driver extends \yii\db\dao\Driver
try {
$columns = $this->connection->createCommand($sql)->queryAll();
}
catch(\Exception $e) {
catch (\Exception $e) {
return false;
}
foreach ($columns as $column) {
@ -164,7 +253,8 @@ class Driver extends \yii\db\dao\Driver
if ($schema === '') {
return $this->connection->createCommand('SHOW TABLES')->queryColumn();
}
$names = $this->connection->createCommand('SHOW TABLES FROM ' . $this->quoteSimpleTableName($schema))->queryColumn();
$sql = 'SHOW TABLES FROM ' . $this->quoteSimpleTableName($schema);
$names = $this->connection->createCommand($sql)->queryColumn();
foreach ($names as &$name) {
$name = $schema . '.' . $name;
}

28
framework/db/dao/mysql/QueryBuilder.php
View File

@ -23,20 +23,20 @@ class QueryBuilder extends \yii\db\dao\QueryBuilder
*/
public $typeMap = array(
'pk' => 'int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY',
ColumnSchema::TYPE_STRING => 'varchar(255)',
ColumnSchema::TYPE_TEXT => 'text',
ColumnSchema::TYPE_SMALLINT => 'smallint(6)',
ColumnSchema::TYPE_INTEGER => 'int(11)',
ColumnSchema::TYPE_BIGINT => 'bigint(20)',
ColumnSchema::TYPE_FLOAT => 'float',
ColumnSchema::TYPE_DECIMAL => 'decimal',
ColumnSchema::TYPE_DATETIME => 'datetime',
ColumnSchema::TYPE_TIMESTAMP => 'timestamp',
ColumnSchema::TYPE_TIME => 'time',
ColumnSchema::TYPE_DATE => 'date',
ColumnSchema::TYPE_BINARY => 'blob',
ColumnSchema::TYPE_BOOLEAN => 'tinyint(1)',
ColumnSchema::TYPE_MONEY => 'decimal(19,4)',
Driver::TYPE_STRING => 'varchar(255)',
Driver::TYPE_TEXT => 'text',
Driver::TYPE_SMALLINT => 'smallint(6)',
Driver::TYPE_INTEGER => 'int(11)',
Driver::TYPE_BIGINT => 'bigint(20)',
Driver::TYPE_FLOAT => 'float',
Driver::TYPE_DECIMAL => 'decimal',
Driver::TYPE_DATETIME => 'datetime',
Driver::TYPE_TIMESTAMP => 'timestamp',
Driver::TYPE_TIME => 'time',
Driver::TYPE_DATE => 'date',
Driver::TYPE_BINARY => 'blob',
Driver::TYPE_BOOLEAN => 'tinyint(1)',
Driver::TYPE_MONEY => 'decimal(19,4)',
);
/**