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-rwxr-xr-xframework/Db/schema/TDbSchema.php193
1 files changed, 0 insertions, 193 deletions
diff --git a/framework/Db/schema/TDbSchema.php b/framework/Db/schema/TDbSchema.php
deleted file mode 100755
index f7e889ec..00000000
--- a/framework/Db/schema/TDbSchema.php
+++ /dev/null
@@ -1,193 +0,0 @@
-<?php
-/**
- * TDbSchema class file.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.yiiframework.com/
- * @copyright Copyright &copy; 2008-2009 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-prado::using('System.db.schema.TDbCommandBuilder');
-
-/**
- * TDbSchema is the base class for retrieving metadata information.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package system.db.schema
- * @since 1.0
- */
-abstract class TDbSchema extends TComponent
-{
- private $_tableNames=array();
- private $_tables=array();
- private $_connection;
- private $_builder;
- private $_cacheExclude=array();
-
- /**
- * Creates a table instance representing the metadata for the named table.
- * @return TDbTableSchema driver dependent table metadata, null if the table does not exist.
- */
- abstract protected function createTable($name);
-
- /**
- * Constructor.
- * @param TDbConnection database connection.
- */
- public function __construct($conn)
- {
- $conn->setActive(true);
- $this->_connection=$conn;
- foreach($conn->schemaCachingExclude as $name)
- $this->_cacheExclude[$name]=true;
- }
-
- /**
- * @return TDbConnection database connection. The connection is active.
- */
- public function getDbConnection()
- {
- return $this->_connection;
- }
-
- /**
- * Obtains the metadata for the named table.
- * @param string table name
- * @return TDbTableSchema table metadata. Null if the named table does not exist.
- */
- public function getTable($name)
- {
- if(isset($this->_tables[$name]))
- return $this->_tables[$name];
- else if(!isset($this->_cacheExclude[$name]) && ($duration=$this->_connection->schemaCachingDuration)>0 && ($cache=prado::getApplication()->getCache())!==null)
- {
- $key='prado:dbschema'.$this->_connection->connectionString.':'.$this->_connection->username.':'.$name;
- if(($table=$cache->get($key))===false)
- {
- $table=$this->createTable($name);
- $cache->set($key,$table,$duration);
- }
- return $this->_tables[$name]=$table;
- }
- else
- return $this->_tables[$name]=$this->createTable($name);
- }
-
- /**
- * Returns the metadata for all tables in the database.
- * @param string the schema of the tables. Defaults to empty string, meaning the current or default schema.
- * @return array the metadata for all tables in the database.
- * Each array element is an instance of {@link TDbTableSchema} (or its child class).
- * The array keys are table names.
- * @since 1.0.2
- */
- public function getTables($schema='')
- {
- $tables=array();
- foreach($this->getTableNames($schema) as $name)
- $tables[$name]=$this->getTable($name);
- return $tables;
- }
-
- /**
- * Returns all table names in the database.
- * @param string the schema of the tables. Defaults to empty string, meaning the current or default schema.
- * If not empty, the returned table names will be prefixed with the schema name.
- * @return array all table names in the database.
- * @since 1.0.2
- */
- public function getTableNames($schema='')
- {
- if(!isset($this->_tableNames[$schema]))
- $this->_tableNames[$schema]=$this->findTableNames($schema);
- return $this->_tableNames[$schema];
- }
-
- /**
- * @return TDbCommandBuilder the SQL command builder for this connection.
- */
- public function getCommandBuilder()
- {
- if($this->_builder!==null)
- return $this->_builder;
- else
- return $this->_builder=$this->createCommandBuilder();
- }
-
- /**
- * Refreshes the schema.
- * This method resets the loaded table metadata and command builder
- * so that they can be recreated to reflect the change of schema.
- */
- public function refresh()
- {
- $this->_tables=array();
- $this->_builder=null;
- }
-
- /**
- * Quotes a table name for use in a query.
- * @param string table name
- * @return string the properly quoted table name
- */
- public function quoteTableName($name)
- {
- return "'".$name."'";
- }
-
- /**
- * Quotes a column name for use in a query.
- * @param string column name
- * @return string the properly quoted column name
- */
- public function quoteColumnName($name)
- {
- return '"'.$name.'"';
- }
-
- /**
- * Compares two table names.
- * The table names can be either quoted or unquoted. This method
- * will consider both cases.
- * @param string table name 1
- * @param string table name 2
- * @return boolean whether the two table names refer to the same table.
- */
- public function compareTableNames($name1,$name2)
- {
- $name1=str_replace(array('"','`',"'"),'',$name1);
- $name2=str_replace(array('"','`',"'"),'',$name2);
- if(($pos=strrpos($name1,'.'))!==false)
- $name1=substr($name1,$pos+1);
- if(($pos=strrpos($name2,'.'))!==false)
- $name2=substr($name2,$pos+1);
- return $name1===$name2;
- }
-
- /**
- * Creates a command builder for the database.
- * This method may be overridden by child classes to create a DBMS-specific command builder.
- * @return TDbCommandBuilder command builder instance
- */
- protected function createCommandBuilder()
- {
- return new TDbCommandBuilder($this);
- }
-
- /**
- * Returns all table names in the database.
- * This method should be overridden by child classes in order to support this feature
- * because the default implemenation simply throws an exception.
- * @param string the schema of the tables. Defaults to empty string, meaning the current or default schema.
- * If not empty, the returned table names will be prefixed with the schema name.
- * @return array all table names in the database.
- * @since 1.0.2
- */
- protected function findTableNames($schema='')
- {
- throw new TDbException('{0} does not support fetching all table names.',
- get_class($this));
- }
-}