...

framework/base/Model.php

@@ -281,7 +281,7 @@ class Model extends Component implements Initable, \IteratorAggregate, \ArrayAcc
 	 */
 	public function onInit($event)
 	{
-		$this->raiseEvent(__METHOD__, $event);
+		$this->raiseEvent(__FUNCTION__, $event);
 	}
 
 	/**
@@ -290,7 +290,7 @@ class Model extends Component implements Initable, \IteratorAggregate, \ArrayAcc
 	 */
 	public function onAfterConstruct($event)
 	{
-		$this->raiseEvent(__METHOD__, $event);
+		$this->raiseEvent(__FUNCTION__, $event);
 	}
 
 	/**
@@ -299,7 +299,7 @@ class Model extends Component implements Initable, \IteratorAggregate, \ArrayAcc
 	 */
 	public function onBeforeValidate($event)
 	{
-		$this->raiseEvent(__METHOD__, $event);
+		$this->raiseEvent(__FUNCTION__, $event);
 	}
 
 	/**
@@ -308,7 +308,7 @@ class Model extends Component implements Initable, \IteratorAggregate, \ArrayAcc
 	 */
 	public function onAfterValidate($event)
 	{
-		$this->raiseEvent(__METHOD__, $event);
+		$this->raiseEvent(__FUNCTION__, $event);
 	}
 
 	/**

framework/db/dao/ColumnSchema.php

@@ -11,7 +11,7 @@
 namespace yii\db\dao;
 
 /**
- * ColumnSchema class describes the column meta data of a database table.
+ * ColumnSchema class describes the meta data of a column in a database table.
  *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
@@ -23,7 +23,7 @@ class ColumnSchema extends \yii\base\Component
 	 */
 	public $name;
 	/**
-	 * @var string raw name of this column. This is the quoted name that can be directly used in SQL queries.
+	 * @var string the quoted name of this column.
 	 */
 	public $quotedName;
 	/**
@@ -42,7 +42,7 @@ class ColumnSchema extends \yii\base\Component
 	 */
 	public $phpType;
 	/**
-	 * @var string the DB type of this column. Possible DB types vary according to the DBMS.
+	 * @var string the DB type of this column. Possible DB types vary according to the type of DBMS.
 	 */
 	public $dbType;
 	/**
@@ -50,11 +50,11 @@ class ColumnSchema extends \yii\base\Component
 	 */
 	public $defaultValue;
 	/**
-	 * @var array enumerable values
+	 * @var array enumerable values. This is set only if the column is declared to be an enumerable type.
 	 */
 	public $enumValues;
 	/**
-	 * @var integer size of the column.
+	 * @var integer display size of the column.
 	 */
 	public $size;
 	/**
@@ -75,7 +75,7 @@ class ColumnSchema extends \yii\base\Component
 	public $autoIncrement = false;
 	/**
 	 * @var boolean whether this column is unsigned. This is only meaningful
-	 * when [[type]] is `integer` or `bigint`.
+	 * when [[type]] is `smallint`, `integer` or `bigint`.
 	 */
 	public $unsigned;
 
@@ -83,7 +83,7 @@ class ColumnSchema extends \yii\base\Component
 	 * Extracts the PHP type from DB type.
 	 * @return string PHP type name.
 	 */
-	protected function getPhpType()
+	protected function extractPhpType()
 	{
 		static $typeMap = array( // logical type => php type
 			'smallint' => 'integer',
@@ -104,7 +104,8 @@ class ColumnSchema extends \yii\base\Component
 	}
 
 	/**
-	 * Converts the input value to the type that this column is of.
+	 * Converts the input value according to [[phpType]].
+	 * If the value is null or an [[Expression]], it will not be converted.
 	 * @param mixed $value input value
 	 * @return mixed converted value
 	 */

framework/db/dao/DataReader.php

@@ -32,6 +32,11 @@ use yii\db\Exception;
  * [[fetchMode]]. See the [PHP manual](http://www.php.net/manual/en/function.PDOStatement-setFetchMode.php)
  * for more details about possible fetch mode.
  *
+ * @property boolean $isClosed whether the reader is closed or not.
+ * @property integer $rowCount number of rows contained in the result.
+ * @property integer $columnCount the number of columns in the result set.
+ * @property mixed $fetchMode fetch mode used when retrieving the data.
+ *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */

framework/db/dao/Query.php

@@ -34,6 +34,8 @@ namespace yii\db\dao;
  * And by calling [[createCommand()]], we can get a [[Command]] instance which can be further
  * used to perform/execute the DB query against a database.
  *
+ * @property string $sql the SQL statement represented by this query object.
+ *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
@@ -512,6 +514,38 @@ class Query extends \yii\base\Object
 	}
 
 	/**
+	 * Sets the parameters to be bound to the query.
+	 * @param array list of query parameter values indexed by parameter placeholders.
+	 * For example, `array(':name'=>'Dan', ':age'=>31)`.
+	 * @return Query the query object itself
+	 * @see addParams()
+	 */
+	public function params($params)
+	{
+		$this->params = $params;
+		return $this;
+	}
+
+	/**
+	 * Adds additional parameters to be bound to the query.
+	 * @param array list of query parameter values indexed by parameter placeholders.
+	 * For example, `array(':name'=>'Dan', ':age'=>31)`.
+	 * @return Query the query object itself
+	 * @see params()
+	 */
+	public function addParams($params)
+	{
+		foreach ($params as $name => $value) {
+			if (is_integer($name)) {
+				$this->params[] = $value;
+			} else {
+				$this->params[$name] = $value;
+			}
+		}
+		return $this;
+	}
+
+	/**
 	 * Creates and executes an INSERT SQL statement.
 	 * The method will properly escape the column names, and bind the values to be inserted.
 	 * @param string $table the table that new rows will be inserted into.
@@ -520,7 +554,7 @@ class Query extends \yii\base\Object
 	 */
 	public function insert($table, $columns)
 	{
-		$this->operation = array('insert', $table, $columns, array());
+		$this->operation = array(__FUNCTION__, $table, $columns, array());
 		return $this;
 	}
 
@@ -537,7 +571,7 @@ class Query extends \yii\base\Object
 	public function update($table, $columns, $condition = '', $params = array())
 	{
 		$this->addParams($params);
-		$this->operation = array('update', $table, $columns, $condition, array());
+		$this->operation = array(__FUNCTION__, $table, $columns, $condition, array());
 		return $this;
 	}
 
@@ -551,7 +585,7 @@ class Query extends \yii\base\Object
 	 */
 	public function delete($table, $condition = '', $params = array())
 	{
-		$this->operation = array('delete', $table, $condition);
+		$this->operation = array(__FUNCTION__, $table, $condition);
 		return $this->addParams($params);
 	}
 
@@ -575,7 +609,7 @@ class Query extends \yii\base\Object
 	 */
 	public function createTable($table, $columns, $options = null)
 	{
-		$this->operation = array('createTable', $table, $columns, $options);
+		$this->operation = array(__FUNCTION__, $table, $columns, $options);
 		return $this;
 	}
 
@@ -587,7 +621,7 @@ class Query extends \yii\base\Object
 	 */
 	public function renameTable($table, $newName)
 	{
-		$this->operation = array('renameTable', $table, $newName);
+		$this->operation = array(__FUNCTION__, $table, $newName);
 		return $this;
 	}
 
@@ -598,7 +632,7 @@ class Query extends \yii\base\Object
 	 */
 	public function dropTable($table)
 	{
-		$this->operation = array('dropTable', $table);
+		$this->operation = array(__FUNCTION__, $table);
 		return $this;
 	}
 
@@ -609,7 +643,7 @@ class Query extends \yii\base\Object
 	 */
 	public function truncateTable($table)
 	{
-		$this->operation = array('truncateTable', $table);
+		$this->operation = array(__FUNCTION__, $table);
 		return $this;
 	}
 
@@ -624,7 +658,7 @@ class Query extends \yii\base\Object
 	 */
 	public function addColumn($table, $column, $type)
 	{
-		$this->operation = array('addColumn', $table, $column, $type);
+		$this->operation = array(__FUNCTION__, $table, $column, $type);
 		return $this;
 	}
 
@@ -636,7 +670,7 @@ class Query extends \yii\base\Object
 	 */
 	public function dropColumn($table, $column)
 	{
-		$this->operation = array('dropColumn', $table, $column);
+		$this->operation = array(__FUNCTION__, $table, $column);
 		return $this;
 	}
 
@@ -649,7 +683,7 @@ class Query extends \yii\base\Object
 	 */
 	public function renameColumn($table, $name, $newName)
 	{
-		$this->operation = array('renameColumn', $table, $name, $newName);
+		$this->operation = array(__FUNCTION__, $table, $name, $newName);
 		return $this;
 	}
 
@@ -664,7 +698,7 @@ class Query extends \yii\base\Object
 	 */
 	public function alterColumn($table, $column, $type)
 	{
-		$this->operation = array('alterColumn', $table, $column, $type);
+		$this->operation = array(__FUNCTION__, $table, $column, $type);
 		return $this;
 	}
 
@@ -682,7 +716,7 @@ class Query extends \yii\base\Object
 	 */
 	public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null)
 	{
-		$this->operation = array('addForeignKey', $name, $table, $columns, $refTable, $refColumns, $delete, $update);
+		$this->operation = array(__FUNCTION__, $name, $table, $columns, $refTable, $refColumns, $delete, $update);
 		return $this;
 	}
 
@@ -694,7 +728,7 @@ class Query extends \yii\base\Object
 	 */
 	public function dropForeignKey($name, $table)
 	{
-		$this->operation = array('dropForeignKey', $name, $table);
+		$this->operation = array(__FUNCTION__, $name, $table);
 		return $this;
 	}
 
@@ -709,7 +743,7 @@ class Query extends \yii\base\Object
 	 */
 	public function createIndex($name, $table, $columns, $unique = false)
 	{
-		$this->operation = array('createIndex', $name, $table, $columns, $unique);
+		$this->operation = array(__FUNCTION__, $name, $table, $columns, $unique);
 		return $this;
 	}
 
@@ -721,39 +755,7 @@ class Query extends \yii\base\Object
 	 */
 	public function dropIndex($name, $table)
 	{
-		$this->operation = array('dropIndex', $name, $table);
-		return $this;
-	}
-
-	/**
-	 * Sets the parameters to be bound to the query.
-	 * @param array list of query parameter values indexed by parameter placeholders.
-	 * For example, `array(':name'=>'Dan', ':age'=>31)`.
-	 * @return Query the query object itself
-	 * @see addParams()
-	 */
-	public function params($params)
-	{
-		$this->params = $params;
-		return $this;
-	}
-
-	/**
-	 * Adds additional parameters to be bound to the query.
-	 * @param array list of query parameter values indexed by parameter placeholders.
-	 * For example, `array(':name'=>'Dan', ':age'=>31)`.
-	 * @return Query the query object itself
-	 * @see params()
-	 */
-	public function addParams($params)
-	{
-		foreach ($params as $name => $value) {
-			if (is_integer($name)) {
-				$this->params[] = $value;
-			} else {
-				$this->params[$name] = $value;
-			}
-		}
+		$this->operation = array(__FUNCTION__, $name, $table);
 		return $this;
 	}
 

framework/db/dao/QueryBuilder.php

@@ -34,6 +34,11 @@ class QueryBuilder extends \yii\base\Object
 	 */
 	public $schema;
 	/**
+	 * @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.
+	 */
+	public $separator = " ";
+	/**
 	 * @var Query the Query object. This is set when calling [[build()]] to generate a non-SELECT SQL statement.
 	 */
 	private $_query;
@@ -49,32 +54,36 @@ class QueryBuilder extends \yii\base\Object
 	}
 
 	/**
-	 * @param Query $query
-	 * @return string
+	 * Generates a SQL statement from a [[Query]] object.
+	 * Note that when generating SQL statements for INSERT and UPDATE queries,
+	 * the query object's [[Query::params]] property may be appended with new parameters.
+	 * @param Query $query the [[Query]] object from which the SQL statement will be generated
+	 * @return string the generated SQL statement
 	 */
 	public function build($query)
 	{
-		// non-SELECT query
 		if ($query->operation !== null) {
+			// non-SELECT query
 			$this->_query = $query;
 			$method = array_shift($query->operation);
 			$sql = call_user_func_array(array($this, $method), $query->operation);
 			$this->_query = null;
 			return $sql;
+		} else {
+			// SELECT query
+			$clauses = array(
+				$this->buildSelect($query),
+				$this->buildFrom($query),
+				$this->buildJoin($query),
+				$this->buildWhere($query),
+				$this->buildGroupBy($query),
+				$this->buildHaving($query),
+				$this->buildUnion($query),
+				$this->buildOrderBy($query),
+				$this->buildLimit($query),
+			);
+			return implode($this->separator, array_filter($clauses));
 		}
-		// SELECT query
-		$clauses = array(
-			$this->buildSelect($query),
-			$this->buildFrom($query),
-			$this->buildJoin($query),
-			$this->buildWhere($query),
-			$this->buildGroupBy($query),
-			$this->buildHaving($query),
-			$this->buildUnion($query),
-			$this->buildOrderBy($query),
-			$this->buildLimit($query),
-		);
-		return implode("\n", array_filter($clauses));
 	}
 
 	/**
@@ -82,7 +91,8 @@ class QueryBuilder extends \yii\base\Object
 	 * The method will properly escape the column names, and bind the values to be inserted.
 	 * @param string $table the table that new rows will be inserted into.
 	 * @param array $columns the column data (name=>value) to be inserted into the table.
-	 * @param array $params the parameters to be bound to the query.
+	 * @param array $params the parameters to be bound to the query. This method will modify
+	 * this parameter by appending new parameters to be bound to the query.
 	 * @return integer number of rows affected by the execution.
 	 */
 	public function insert($table, $columns, &$params = array())
@@ -119,7 +129,8 @@ class QueryBuilder extends \yii\base\Object
 	 * @param array $columns the column data (name=>value) to be updated.
 	 * @param mixed $condition the condition that will be put in the WHERE part. Please
 	 * refer to [[Query::where()]] on how to specify condition.
-	 * @param array $params the parameters to be bound to the query.
+	 * @param array $params the parameters to be bound to the query. This method will modify
+	 * this parameter by appending new parameters to be bound to the query.
 	 * @return integer number of rows affected by the execution.
 	 */
 	public function update($table, $columns, $condition = '', &$params = array())

framework/db/dao/Schema.php

@@ -13,7 +13,13 @@ namespace yii\db\dao;
 use yii\db\Exception;
 
 /**
- * Schema is the base class for retrieving metadata information.
+ * Schema represents the meta data of a database.
+ *
+ * Schema retrieves and maintains the meta data of database tables and columns.
+ *
+ * @property QueryBuilder $queryBuilder the query builder for this connection.
+ * @property array $tableNames the names of all tables in this database.
+ * @property array $tableSchemas the meta data for all tables in this database.
  *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
@@ -37,18 +43,26 @@ abstract class Schema extends \yii\base\Object
 	const TYPE_MONEY = 'money';
 
 	/**
-	 * @var \yii\db\dao\Connection the database connection
+	 * @var Connection the database connection
 	 */
 	public $connection;
-
+	/**
+	 * @var array list of ALL table names in the database
+	 */
 	private $_tableNames = array();
+	/**
+	 * @var array list of loaded table meta data (table name => TableSchema)
+	 */
 	private $_tables = array();
+	/**
+	 * @var QueryBuilder the query builder for this database
+	 */
 	private $_builder;
 
 	/**
 	 * Loads the metadata for the specified table.
 	 * @param string $name table name
-	 * @return TableSchema driver dependent table metadata, null if the table does not exist.
+	 * @return TableSchema DBMS-dependent table metadata, null if the table does not exist.
 	 */
 	abstract protected function loadTableSchema($name);
 
@@ -64,31 +78,28 @@ abstract class Schema extends \yii\base\Object
 	/**
 	 * Obtains the metadata for the named table.
 	 * @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
+	 * @param boolean $refresh whether to reload the table schema even if it is found in the cache.
 	 * @return TableSchema table metadata. Null if the named table does not exist.
 	 */
-	public function getTableSchema($name)
+	public function getTableSchema($name, $refresh = false)
 	{
-		if (isset($this->_tables[$name])) {
+		if (isset($this->_tables[$name]) && !$refresh) {
 			return $this->_tables[$name];
 		}
 
-		if (strpos($name, '{{') !== false) {
-			$realName = preg_replace('/\{\{(.*?)\}\}/', $this->connection->tablePrefix . '$1', $name);
-		} else {
-			$realName = $name;
-		}
-
 		$db = $this->connection;
 
+		$realName = $db->expandTablePrefix($name);
+
 		// temporarily disable query caching
 		if ($db->queryCachingDuration >= 0) {
 			$qcDuration = $db->queryCachingDuration;
 			$db->queryCachingDuration = -1;
 		}
 
-		if (!in_array($name, $db->schemaCachingExclude) && $db->schemaCachingDuration >= 0 && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null) {
-			$key = __CLASS__ . "/{$db->dsn}/{$db->username}/{$name}";
-			if (($table = $cache->get($key)) === false) {
+		if (!in_array($name, $db->schemaCachingExclude, true) && $db->schemaCachingDuration >= 0 && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null) {
+			$key = $this->getCacheKey($name);
+			if ($refresh || ($table = $cache->get($key)) === false) {
 				$table = $this->loadTableSchema($realName);
 				if ($table !== null) {
 					$cache->set($key, $table, $db->schemaCachingDuration);
@@ -107,10 +118,20 @@ abstract class Schema extends \yii\base\Object
 	}
 
 	/**
+	 * Returns the cache key for the specified table name.
+	 * @param string $name the table name
+	 * @return string the cache key
+	 */
+	public function getCacheKey($name)
+	{
+		return  __CLASS__ . "/{$this->connection->dsn}/{$this->connection->username}/{$name}";
+	}
+
+	/**
 	 * Returns the metadata for all tables in the database.
 	 * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema.
 	 * @return array the metadata for all tables in the database.
-	 * Each array element is an instance of {@link CDbTableSchema} (or its child class).
+	 * Each array element is an instance of [[TableSchema]] (or its child class).
 	 */
 	public function getTableSchemas($schema = '')
 	{
@@ -158,8 +179,7 @@ abstract class Schema extends \yii\base\Object
 		$db = $this->connection;
 		if ($db->schemaCachingDuration >= 0 && ($cache = \Yii::$application->getComponent($db->schemaCacheID)) !== null) {
 			foreach ($this->_tables as $name => $table) {
-				$key = __CLASS__ . ":{$db->dsn}/{$db->username}/{$name}";
-				$cache->delete($key);
+				$cache->delete($this->getCacheKey($name));
 			}
 		}
 		$this->_tables = array();
@@ -209,8 +229,7 @@ abstract class Schema extends \yii\base\Object
 		if (($pos = strrpos($name, '.')) !== false) {
 			$prefix = $this->quoteTableName(substr($name, 0, $pos)) . '.';
 			$name = substr($name, $pos + 1);
-		} else
-		{
+		} else {
 			$prefix = '';
 		}
 		return $prefix . $this->quoteSimpleColumnName($name);

framework/db/dao/TableSchema.php

@@ -13,7 +13,9 @@ 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 provide DBMS-specific table metadata.
+ * It may be extended by different DBMS driver to represent DBMS-specific table metadata.
+ *
+ * @property array $columnNames list of column names
  *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
@@ -61,7 +63,7 @@ class TableSchema extends \yii\base\Object
 	 * Gets the named column metadata.
 	 * This is a convenient method for retrieving a named column even if it does not exist.
 	 * @param string $name column name
-	 * @return CDbColumnSchema metadata of the named column. Null if the named column does not exist.
+	 * @return ColumnSchema metadata of the named column. Null if the named column does not exist.
 	 */
 	public function getColumn($name)
 	{
@@ -69,6 +71,7 @@ class TableSchema extends \yii\base\Object
 	}
 
 	/**
+	 * Returns the names of all columns in this table.
 	 * @return array list of column names
 	 */
 	public function getColumnNames()

framework/db/dao/Transaction.php

@@ -15,7 +15,7 @@ use yii\db\Exception;
 /**
  * Transaction represents a DB transaction.
  *
- * It is usually created by calling [[Connection::beginTransaction]].
+ * It is usually created by calling [[Connection::beginTransaction()]].
  *
  * The following code is a typical example of using transactions (note that some
  * DBMS may not support transactions):
@@ -39,7 +39,7 @@ class Transaction extends \yii\base\Object
 {
 	/**
 	 * @var boolean whether this transaction is active. Only an active transaction
-	 * can [[commit]] or [[rollBack]]. This property is set true when the transaction is started.
+	 * can [[commit()]] or [[rollBack()]]. This property is set true when the transaction is started.
 	 */
 	public $active;
 	/**

framework/db/dao/mysql/ColumnSchema.php

@@ -88,7 +88,7 @@ class ColumnSchema extends \yii\db\dao\ColumnSchema
 			}
 		}
 
-		$this->phpType = $this->getPhpType();
+		$this->phpType = $this->extractPhpType();
 	}
 
 	/**