From 3f0149b5b74d4017ba7f4ca28aa8a3e2053db964 Mon Sep 17 00:00:00 2001
From: "Christophe.Boulain" <>
Date: Mon, 15 Jun 2009 07:49:42 +0000
Subject: Primilary import of new db stuff

---
 framework/Db/schema/TDbTableSchema.php | 76 ++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100755 framework/Db/schema/TDbTableSchema.php

(limited to 'framework/Db/schema/TDbTableSchema.php')

diff --git a/framework/Db/schema/TDbTableSchema.php b/framework/Db/schema/TDbTableSchema.php
new file mode 100755
index 00000000..338ba96b
--- /dev/null
+++ b/framework/Db/schema/TDbTableSchema.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * TDbTableSchema 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/
+ */
+
+/**
+ * TDbTableSchema is the base class for representing the metadata of a database table.
+ *
+ * It may be extended by different DBMS driver to provide DBMS-specific table metadata.
+ *
+ * TDbTableSchema provides the following information about a table:
+ * <ul>
+ * <li>{@link name}</li>
+ * <li>{@link rawName}</li>
+ * <li>{@link columns}</li>
+ * <li>{@link primaryKey}</li>
+ * <li>{@link foreignKeys}</li>
+ * <li>{@link sequenceName}</li>
+ * </ul>
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package system.db.schema
+ * @since 1.0
+ */
+class TDbTableSchema extends TComponent
+{
+	/**
+	 * @var string name of this table.
+	 */
+	public $name;
+	/**
+	 * @var string raw name of this table. This is the quoted version of table name with optional schema name. It can be directly used in SQLs.
+	 */
+	public $rawName;
+	/**
+	 * @var string|array primary key name of this table. If composite key, an array of key names is returned.
+	 */
+	public $primaryKey;
+	/**
+	 * @var string sequence name for the primary key. Null if no sequence.
+	 */
+	public $sequenceName;
+	/**
+	 * @var array foreign keys of this table. The array is indexed by column name. Each value is an array of foreign table name and foreign column name.
+	 */
+	public $foreignKeys=array();
+	/**
+	 * @var array column metadata of this table. Each array element is a TDbColumnSchema object, indexed by column names.
+	 */
+	public $columns=array();
+
+	/**
+	 * Gets the named column metadata.
+	 * This is a convenient method for retrieving a named column even if it does not exist.
+	 * @param string column name
+	 * @return TDbColumnSchema metadata of the named column. Null if the named column does not exist.
+	 */
+	public function getColumn($name)
+	{
+		return isset($this->columns[$name]) ? $this->columns[$name] : null;
+	}
+
+	/**
+	 * @return array list of column names
+	 */
+	public function getColumnNames()
+	{
+		return array_keys($this->columns);
+	}
+}
-- 
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