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Qiang Xue
2011-12-27 15:29:33 -05:00
parent a1a69c5e0e
commit d75d932656
6 changed files with 83 additions and 80 deletions
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57
framework/db/dao/Connection.php
View File

@ -85,7 +85,7 @@ use yii\db\Exception;
*
* @property boolean $active Whether the DB connection is established.
* @property Transaction $currentTransaction The currently active transaction. Null if no active transaction.
* @property Schema $schema The database schema for the current connection.
* @property Driver $driver The database driver for the current connection.
* @property QueryBuilder $queryBuilder The query builder.
* @property string $lastInsertID The row ID of the last row inserted, or the last value retrieved from the sequence object.
* @property string $driverName Name of the DB driver currently being used.
@ -225,35 +225,34 @@ class Connection extends \yii\base\ApplicationComponent
*/
public $initSQLs;
/**
* @var array mapping between PDO driver names and [[Schema]] classes.
* @var array mapping between PDO driver names and [[Driver]] classes.
* The keys of the array are PDO driver names while the values the corresponding
* schema class name or configuration. Please refer to [[\Yii::createObject]] for
* driver class name or configuration. Please refer to [[\Yii::createObject]] for
* details on how to specify a configuration.
*
* This property is mainly used by [[getSchema]] when fetching the database schema information.
* This property is mainly used by [[getDriver()]] when fetching the database schema information.
* You normally do not need to set this property unless you want to use your own
* [[Schema]] class to support DBMS that is not supported by Yii.
* [[Driver]] class to support DBMS that is not supported by Yii.
*/
public $schemaMap = array(
'pgsql' => '\yii\db\dao\pgsql\Schema', // PostgreSQL
'mysqli' => '\yii\db\dao\mysql\Schema', // MySQL
'mysql' => '\yii\db\dao\mysql\Schema', // MySQL
'sqlite' => '\yii\db\dao\sqlite\Schema', // sqlite 3
'sqlite2' => '\yii\db\dao\sqlite\Schema', // sqlite 2
'mssql' => '\yii\db\dao\mssql\Schema', // Mssql driver on windows hosts
'dblib' => '\yii\db\dao\mssql\Schema', // dblib drivers on linux (and maybe others os) hosts
'sqlsrv' => '\yii\db\dao\mssql\Schema', // Mssql
'oci' => '\yii\db\dao\oci\Schema', // Oracle driver
public $driverMap = array(
'pgsql' => '\yii\db\dao\pgsql\Driver', // PostgreSQL
'mysqli' => '\yii\db\dao\mysql\Driver', // MySQL
'mysql' => '\yii\db\dao\mysql\Driver', // MySQL
'sqlite' => '\yii\db\dao\sqlite\Driver', // sqlite 3
'sqlite2' => '\yii\db\dao\sqlite\Driver', // sqlite 2
'mssql' => '\yii\db\dao\mssql\Driver', // Mssql driver on windows hosts
'dblib' => '\yii\db\dao\mssql\Driver', // dblib drivers on linux (and maybe others os) hosts
'sqlsrv' => '\yii\db\dao\mssql\Driver', // Mssql
'oci' => '\yii\db\dao\oci\Driver', // Oracle driver
);
/**
* @var Transaction the currently active transaction
*/
private $_transaction;
/**
* @var Schema the database schema
* @var Driver the database driver
*/
private $_schema;
private $_driver;
/**
* Constructor.
@ -366,7 +365,7 @@ class Connection extends \yii\base\ApplicationComponent
if ($this->pdo !== null) {
\Yii::trace('Closing DB connection: ' . $this->dsn, __CLASS__);
$this->pdo = null;
$this->_schema = null;
$this->_driver = null;
$this->_transaction = null;
}
}
@ -454,18 +453,18 @@ class Connection extends \yii\base\ApplicationComponent
/**
* Returns the metadata information for the underlying database.
* @return Schema the metadata information for the underlying database.
* @return Driver the metadata information for the underlying database.
*/
public function getSchema()
public function getDriver()
{
if ($this->_schema !== null) {
return $this->_schema;
if ($this->_driver !== null) {
return $this->_driver;
} else {
$driver = $this->getDriverName();
if (isset($this->schemaMap[$driver])) {
return $this->_schema = \Yii::createObject($this->schemaMap[$driver], $this);
if (isset($this->driverMap[$driver])) {
return $this->_driver = \Yii::createObject($this->driverMap[$driver], $this);
} else {
throw new Exception("Connection does not support reading schema for '$driver' database.");
throw new Exception("Connection does not support reading meta data for '$driver' database.");
}
}
}
@ -476,7 +475,7 @@ class Connection extends \yii\base\ApplicationComponent
*/
public function getQueryBuilder()
{
return $this->getSchema()->getQueryBuilder();
return $this->getDriver()->getQueryBuilder();
}
/**
@ -521,7 +520,7 @@ class Connection extends \yii\base\ApplicationComponent
*/
public function quoteTableName($name, $simple = false)
{
return $simple ? $this->getSchema()->quoteSimpleTableName($name) : $this->getSchema()->quoteTableName($name);
return $simple ? $this->getDriver()->quoteSimpleTableName($name) : $this->getDriver()->quoteTableName($name);
}
/**
@ -533,7 +532,7 @@ class Connection extends \yii\base\ApplicationComponent
*/
public function quoteColumnName($name, $simple = false)
{
return $simple ? $this->getSchema()->quoteSimpleColumnName($name) : $this->getSchema()->quoteColumnName($name);
return $simple ? $this->getDriver()->quoteSimpleColumnName($name) : $this->getDriver()->quoteColumnName($name);
}
/**

8
framework/db/dao/Schema.php → framework/db/dao/Driver.php
View File

@ -1,6 +1,6 @@
<?php
/**
* Schema class file.
* Driver class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
@ -13,9 +13,9 @@ namespace yii\db\dao;
use yii\db\Exception;
/**
* Schema represents the meta data of a database.
* Driver is the base class for all database driver classes.
*
* Schema retrieves and maintains the meta data of database tables and columns.
* Driver implements the DBMS-specific methods to support retrieving meta data of a database.
*
* @property QueryBuilder $queryBuilder the query builder for this connection.
* @property array $tableNames the names of all tables in this database.
@ -24,7 +24,7 @@ use yii\db\Exception;
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
abstract class Schema extends \yii\base\Object
abstract class Driver extends \yii\base\Object
{
/**
* @var Connection the database connection

72
framework/db/dao/QueryBuilder.php
View File

@ -34,9 +34,9 @@ class QueryBuilder extends \yii\base\Object
*/
public $connection;
/**
* @var Schema the database schema
* @var Driver the database driver
*/
public $schema;
public $driver;
/**
* @var string the separator between different fragments of a SQL statement.
* Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement.
@ -54,7 +54,7 @@ class QueryBuilder extends \yii\base\Object
public function __construct($connection)
{
$this->connection = $connection;
$this->schema = $connection->getSchema();
$this->driver = $connection->getDriver();
}
/**
@ -105,7 +105,7 @@ class QueryBuilder extends \yii\base\Object
$placeholders = array();
$count = 0;
foreach ($columns as $name => $value) {
$names[] = $this->schema->quoteColumnName($name);
$names[] = $this->driver->quoteColumnName($name);
if ($value instanceof Expression) {
$placeholders[] = $value->expression;
foreach ($value->params as $n => $v) {
@ -121,7 +121,7 @@ class QueryBuilder extends \yii\base\Object
$this->_query->addParams($params);
}
return 'INSERT INTO ' . $this->schema->quoteTableName($table)
return 'INSERT INTO ' . $this->driver->quoteTableName($table)
. ' (' . implode(', ', $names) . ') VALUES ('
. implode(', ', $placeholders) . ')';
}
@ -143,12 +143,12 @@ class QueryBuilder extends \yii\base\Object
$count = 0;
foreach ($columns as $name => $value) {
if ($value instanceof Expression) {
$lines[] = $this->schema->quoteSimpleColumnName($name) . '=' . $value->expression;
$lines[] = $this->driver->quoteSimpleColumnName($name) . '=' . $value->expression;
foreach ($value->params as $n => $v) {
$params[$n] = $v;
}
} else {
$lines[] = $this->schema->quoteSimpleColumnName($name) . '=:p' . $count;
$lines[] = $this->driver->quoteSimpleColumnName($name) . '=:p' . $count;
$params[':p' . $count] = $value;
$count++;
}
@ -156,7 +156,7 @@ class QueryBuilder extends \yii\base\Object
if ($this->_query instanceof Query) {
$this->_query->addParams($params);
}
$sql = 'UPDATE ' . $this->schema->quoteTableName($table) . ' SET ' . implode(', ', $lines);
$sql = 'UPDATE ' . $this->driver->quoteTableName($table) . ' SET ' . implode(', ', $lines);
if (($where = $this->buildCondition($condition)) != '') {
$sql .= ' WHERE ' . $where;
}
@ -173,7 +173,7 @@ class QueryBuilder extends \yii\base\Object
*/
public function delete($table, $condition = '')
{
$sql = 'DELETE FROM ' . $this->schema->quoteTableName($table);
$sql = 'DELETE FROM ' . $this->driver->quoteTableName($table);
if (($where = $this->buildCondition($condition)) != '') {
$sql .= ' WHERE ' . $where;
}
@ -201,13 +201,13 @@ class QueryBuilder extends \yii\base\Object
$cols = array();
foreach ($columns as $name => $type) {
if (is_string($name)) {
$cols[] = "\t" . $this->schema->quoteColumnName($name) . ' ' . $this->schema->getColumnType($type);
$cols[] = "\t" . $this->driver->quoteColumnName($name) . ' ' . $this->driver->getColumnType($type);
} else
{
$cols[] = "\t" . $type;
}
}
$sql = "CREATE TABLE " . $this->schema->quoteTableName($table) . " (\n" . implode(",\n", $cols) . "\n)";
$sql = "CREATE TABLE " . $this->driver->quoteTableName($table) . " (\n" . implode(",\n", $cols) . "\n)";
return $options === null ? $sql : $sql . ' ' . $options;
}
@ -219,7 +219,7 @@ class QueryBuilder extends \yii\base\Object
*/
public function renameTable($table, $newName)
{
return 'RENAME TABLE ' . $this->schema->quoteTableName($table) . ' TO ' . $this->schema->quoteTableName($newName);
return 'RENAME TABLE ' . $this->driver->quoteTableName($table) . ' TO ' . $this->driver->quoteTableName($newName);
}
/**
@ -229,7 +229,7 @@ class QueryBuilder extends \yii\base\Object
*/
public function dropTable($table)
{
return "DROP TABLE " . $this->schema->quoteTableName($table);
return "DROP TABLE " . $this->driver->quoteTableName($table);
}
/**
@ -239,7 +239,7 @@ class QueryBuilder extends \yii\base\Object
*/
public function truncateTable($table)
{
return "TRUNCATE TABLE " . $this->schema->quoteTableName($table);
return "TRUNCATE TABLE " . $this->driver->quoteTableName($table);
}
/**
@ -253,8 +253,8 @@ class QueryBuilder extends \yii\base\Object
*/
public function addColumn($table, $column, $type)
{
return 'ALTER TABLE ' . $this->schema->quoteTableName($table)
. ' ADD ' . $this->schema->quoteColumnName($column) . ' '
return 'ALTER TABLE ' . $this->driver->quoteTableName($table)
. ' ADD ' . $this->driver->quoteColumnName($column) . ' '
. $this->getColumnType($type);
}
@ -266,8 +266,8 @@ class QueryBuilder extends \yii\base\Object
*/
public function dropColumn($table, $column)
{
return "ALTER TABLE " . $this->schema->quoteTableName($table)
. " DROP COLUMN " . $this->schema->quoteSimpleColumnName($column);
return "ALTER TABLE " . $this->driver->quoteTableName($table)
. " DROP COLUMN " . $this->driver->quoteSimpleColumnName($column);
}
/**
@ -279,9 +279,9 @@ class QueryBuilder extends \yii\base\Object
*/
public function renameColumn($table, $name, $newName)
{
return "ALTER TABLE " . $this->schema->quoteTableName($table)
. " RENAME COLUMN " . $this->schema->quoteSimpleColumnName($name)
. " TO " . $this->schema->quoteSimpleColumnName($newName);
return "ALTER TABLE " . $this->driver->quoteTableName($table)
. " RENAME COLUMN " . $this->driver->quoteSimpleColumnName($name)
. " TO " . $this->driver->quoteSimpleColumnName($newName);
}
/**
@ -295,9 +295,9 @@ class QueryBuilder extends \yii\base\Object
*/
public function alterColumn($table, $column, $type)
{
return 'ALTER TABLE ' . $this->schema->quoteTableName($table) . ' CHANGE '
. $this->schema->quoteSimpleColumnName($column) . ' '
. $this->schema->quoteSimpleColumnName($column) . ' '
return 'ALTER TABLE ' . $this->driver->quoteTableName($table) . ' CHANGE '
. $this->driver->quoteSimpleColumnName($column) . ' '
. $this->driver->quoteSimpleColumnName($column) . ' '
. $this->getColumnType($type);
}
@ -317,16 +317,16 @@ class QueryBuilder extends \yii\base\Object
{
$columns = preg_split('/\s*,\s*/', $columns, -1, PREG_SPLIT_NO_EMPTY);
foreach ($columns as $i => $col) {
$columns[$i] = $this->schema->quoteColumnName($col);
$columns[$i] = $this->driver->quoteColumnName($col);
}
$refColumns = preg_split('/\s*,\s*/', $refColumns, -1, PREG_SPLIT_NO_EMPTY);
foreach ($refColumns as $i => $col) {
$refColumns[$i] = $this->schema->quoteColumnName($col);
$refColumns[$i] = $this->driver->quoteColumnName($col);
}
$sql = 'ALTER TABLE ' . $this->schema->quoteTableName($table)
. ' ADD CONSTRAINT ' . $this->schema->quoteColumnName($name)
$sql = 'ALTER TABLE ' . $this->driver->quoteTableName($table)
. ' ADD CONSTRAINT ' . $this->driver->quoteColumnName($name)
. ' FOREIGN KEY (' . implode(', ', $columns) . ')'
. ' REFERENCES ' . $this->schema->quoteTableName($refTable)
. ' REFERENCES ' . $this->driver->quoteTableName($refTable)
. ' (' . implode(', ', $refColumns) . ')';
if ($delete !== null) {
$sql .= ' ON DELETE ' . $delete;
@ -345,8 +345,8 @@ class QueryBuilder extends \yii\base\Object
*/
public function dropForeignKey($name, $table)
{
return 'ALTER TABLE ' . $this->schema->quoteTableName($table)
. ' DROP CONSTRAINT ' . $this->schema->quoteColumnName($name);
return 'ALTER TABLE ' . $this->driver->quoteTableName($table)
. ' DROP CONSTRAINT ' . $this->driver->quoteColumnName($name);
}
/**
@ -368,12 +368,12 @@ class QueryBuilder extends \yii\base\Object
$cols[] = $col;
} else
{
$cols[] = $this->schema->quoteColumnName($col);
$cols[] = $this->driver->quoteColumnName($col);
}
}
return ($unique ? 'CREATE UNIQUE INDEX ' : 'CREATE INDEX ')
. $this->schema->quoteTableName($name) . ' ON '
. $this->schema->quoteTableName($table) . ' (' . implode(', ', $cols) . ')';
. $this->driver->quoteTableName($name) . ' ON '
. $this->driver->quoteTableName($table) . ' (' . implode(', ', $cols) . ')';
}
/**
@ -384,7 +384,7 @@ class QueryBuilder extends \yii\base\Object
*/
public function dropIndex($name, $table)
{
return 'DROP INDEX ' . $this->schema->quoteTableName($name) . ' ON ' . $this->schema->quoteTableName($table);
return 'DROP INDEX ' . $this->driver->quoteTableName($name) . ' ON ' . $this->driver->quoteTableName($table);
}
/**
@ -470,7 +470,7 @@ class QueryBuilder extends \yii\base\Object
$columns[$i] = (string)$column;
} elseif (strpos($column, '(') === false) {
if (preg_match('/^(.*?)(?i:\s+as\s+|\s+)([\w\-\.])$/', $column, $matches)) {
$columns[$i] = $this->connection->quoteColumnName($matches[1]) . ' AS ' . $this->connection->quoteSimpleColumnName($matches[2]);
$columns[$i] = $this->connection->quoteColumnName($matches[1]) . ' AS ' . $this->driver->quoteSimpleColumnName($matches[2]);
} else {
$columns[$i] = $this->connection->quoteColumnName($column);
}

10
framework/db/dao/mysql/Schema.php → framework/db/dao/mysql/Driver.php
View File

@ -1,6 +1,6 @@
<?php
/**
* Schema class file.
* Driver class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
@ -13,16 +13,16 @@ namespace yii\db\dao\mysql;
use yii\db\dao\TableSchema;
/**
* Schema is the class for retrieving metadata information from a MySQL database (version 4.1.x and 5.x).
* Driver is the class for retrieving meta data from a MySQL database (version 4.1.x and 5.x).
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class Schema extends \yii\db\dao\Schema
class Driver extends \yii\db\dao\Driver
{
/**
* Quotes a table name for use in a query.
* A simple table name does not schema prefix.
* A simple table name has no schema prefix.
* @param string $name table name
* @return string the properly quoted table name
*/
@ -33,7 +33,7 @@ class Schema extends \yii\db\dao\Schema
/**
* Quotes a column name for use in a query.
* A simple column name does not contain prefix.
* A simple column name has no prefix.
* @param string $name column name
* @return string the properly quoted column name
*/

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

@ -48,7 +48,7 @@ class QueryBuilder extends \yii\db\dao\QueryBuilder
*/
public function renameColumn($table, $name, $newName)
{
$quotedTable = $this->schema->quoteTableName($table);
$quotedTable = $this->driver->quoteTableName($table);
$row = $this->connection->createCommand('SHOW CREATE TABLE ' . $quotedTable)->queryRow();
if ($row === false)
throw new CDbException(Yii::t('yii', 'Unable to find "{column}" in table "{table}".', array('{column}' => $name, '{table}' => $table)));
@ -61,13 +61,13 @@ class QueryBuilder extends \yii\db\dao\QueryBuilder
if (preg_match_all('/^\s*`(.*?)`\s+(.*?),?$/m', $sql, $matches)) {
foreach ($matches[1] as $i => $c) {
if ($c === $name) {
return "ALTER TABLE $quotedTable CHANGE " . $this->schema->quoteColumnName($name)
. ' ' . $this->schema->quoteColumnName($newName) . ' ' . $matches[2][$i];
return "ALTER TABLE $quotedTable CHANGE " . $this->driver->quoteColumnName($name)
. ' ' . $this->driver->quoteColumnName($newName) . ' ' . $matches[2][$i];
}
}
}
// try to give back a SQL anyway
return "ALTER TABLE $quotedTable CHANGE " . $this->schema->quoteColumnName($name) . ' ' . $newName;
return "ALTER TABLE $quotedTable CHANGE " . $this->driver->quoteColumnName($name) . ' ' . $newName;
}
/**
@ -78,7 +78,7 @@ class QueryBuilder extends \yii\db\dao\QueryBuilder
*/
public function dropForeignKey($name, $table)
{
return 'ALTER TABLE ' . $this->schema->quoteTableName($table)
. ' DROP FOREIGN KEY ' . $this->schema->quoteColumnName($name);
return 'ALTER TABLE ' . $this->driver->quoteTableName($table)
. ' DROP FOREIGN KEY ' . $this->driver->quoteColumnName($name);
}
}

4
upgrade.md
View File

@ -24,6 +24,7 @@ Upgrading from v1.1.x
---------------------
- All framework classes are now namespaced, and the name prefix `C` is removed.
- The format of path alias is changed to `@yii/base/Component`.
In 1.x, this would be `system.base.CComponent`. See guide for more details.
@ -36,4 +37,7 @@ Upgrading from v1.1.x
- `CFormModel` is removed. Please use `yii\base\Model` instead.
- `CDbCriteria` is replaced by `yii\db\dao\Query` which includes methods for
building a query. `CDbCommandBuilder` is replaced by `yii\db\dao\QueryBuilder`
which has cleaner and more complete support of query building capabilities.