@ -39,80 +39,9 @@ namespace yii\db\dao;
* @author Qiang Xue < qiang.xue @ gmail . com > * @author Qiang Xue < qiang.xue @ gmail . com >
* @since 2.0 * @since 2.0
*/ */
class Query extends \yii\base\Object class Query extends BaseQuery
{ {
/** /**
* @var string|array the columns being selected. This refers to the SELECT clause in a SQL
* statement. It can be either a string (e.g. `'id, name'`) or an array (e.g. `array('id', 'name')`).
* If not set, if means all columns.
* @see select()
*/
public $select;
/**
* @var string additional option that should be appended to the 'SELECT' keyword. For example,
* in MySQL, the option 'SQL_CALC_FOUND_ROWS' can be used.
*/
public $selectOption;
/**
* @var string|array the table(s) to be selected from. This refers to the FROM clause in a SQL statement.
* It can be either a string (e.g. `'tbl_user, tbl_post'`) or an array (e.g. `array('tbl_user', 'tbl_post')`).
* @see from()
*/
public $from;
/**
* @var boolean whether to select distinct rows of data only. If this is set true,
* the SELECT clause would be changed to SELECT DISTINCT.
*/
public $distinct;
/**
* @var string|array query condition. This refers to the WHERE clause in a SQL statement.
* For example, `age > 31 AND team = 1`.
* @see where()
*/
public $where;
/**
* @var integer maximum number of records to be returned. If not set or less than 0, it means no limit.
*/
public $limit;
/**
* @var integer zero-based offset from where the records are to be returned. If not set or
* less than 0, it means starting from the beginning.
*/
public $offset;
/**
* @var string|array how to sort the query results. This refers to the ORDER BY clause in a SQL statement.
* It can be either a string (e.g. `'id ASC, name DESC'`) or an array (e.g. `array('id ASC', 'name DESC')`).
*/
public $orderBy;
/**
* @var string|array how to group the query results. This refers to the GROUP BY clause in a SQL statement.
* It can be either a string (e.g. `'company, department'`) or an array (e.g. `array('company', 'department')`).
*/
public $groupBy;
/**
* @var string|array how to join with other tables. This refers to the JOIN clause in a SQL statement.
* It can either a string (e.g. `'LEFT JOIN tbl_user ON tbl_user.id=author_id'`) or an array (e.g.
* `array('LEFT JOIN tbl_user ON tbl_user.id=author_id', 'LEFT JOIN tbl_team ON tbl_team.id=team_id')`).
* @see join()
*/
public $join;
/**
* @var string|array the condition to be applied in the GROUP BY clause.
* It can be either a string or an array. Please refer to [[where()]] on how to specify the condition.
*/
public $having;
/**
* @var array list of query parameter values indexed by parameter placeholders.
* For example, `array(':name'=>'Dan', ':age'=>31)`.
*/
public $params;
/**
* @var string|array the UNION clause(s) in a SQL statement. This can be either a string
* representing a single UNION clause or an array representing multiple UNION clauses.
* Each union clause can be a string or a `Query` object which refers to the SQL statement.
*/
public $union;
/**
* @var array the operation that this query represents. This refers to the method call as well as * @var array the operation that this query represents. This refers to the method call as well as
* the corresponding parameters for constructing a non-query SQL statement (e.g. INSERT, CREATE TABLE). * the corresponding parameters for constructing a non-query SQL statement (e.g. INSERT, CREATE TABLE).
* This property is mainly maintained by methods such as [[insert()]], [[update()]], [[createTable()]]. * This property is mainly maintained by methods such as [[insert()]], [[update()]], [[createTable()]].
@ -120,497 +49,33 @@ class Query extends \yii\base\Object
*/ */
public $operation; public $operation;
/**
/**
* Sets the SELECT part of the query.
* @param mixed $columns the columns to be selected. Defaults to '*', meaning all columns.
* Columns can be specified in either a string (e.g. "id, name") or an array (e.g. array('id', 'name')).
* Columns can contain table prefixes (e.g. "tbl_user.id") and/or column aliases (e.g. "tbl_user.id AS user_id").
* The method will automatically quote the column names unless a column contains some parenthesis
* (which means the column contains a DB expression).
* @param boolean $distinct whether to use 'SELECT DISTINCT'.
* @param string $option additional option that should be appended to the 'SELECT' keyword. For example,
* in MySQL, the option 'SQL_CALC_FOUND_ROWS' can be used.
* @return Query the query object itself
*/
public function select($columns = '*', $distinct = false, $option = '')
{
$this->select = $columns;
$this->distinct = $distinct;
$this->selectOption = $option;
return $this;
}
/**
* Sets the FROM part of the query.
* @param mixed $tables the table(s) to be selected from. This can be either a string (e.g. 'tbl_user')
* or an array (e.g. array('tbl_user', 'tbl_profile')) specifying one or several table names.
* Table names can contain schema prefixes (e.g. 'public.tbl_user') and/or table aliases (e.g. 'tbl_user u').
* The method will automatically quote the table names unless it contains some parenthesis
* (which means the table is given as a sub-query or DB expression).
* @return Query the query object itself
*/
public function from($tables)
{
$this->from = $tables;
return $this;
}
/**
* Sets the WHERE part of the query.
*
* The method requires a $condition parameter, and optionally a $params parameter
* specifying the values to be bound to the query.
*
* The $condition parameter should be either a string (e.g. 'id=1') or an array.
* If the latter, it must be in one of the following two formats:
*
* - hash format: `array('column1' => value1, 'column2' => value2, ...)`
* - operator format: `array(operator, operand1, operand2, ...)`
*
* A condition in hash format represents the following SQL expression in general:
* `column1=value1 AND column2=value2 AND ...`. In case when a value is an array,
* an `IN` expression will be generated. And if a value is null, `IS NULL` will be used
* in the generated expression. Below are some examples:
*
* - `array('type'=>1, 'status'=>2)` generates `(type=1) AND (status=2)`.
* - `array('id'=>array(1,2,3), 'status'=>2)` generates `(id IN (1,2,3)) AND (status=2)`.
* - `array('status'=>null) generates `status IS NULL`.
*
* A condition in operator format generates the SQL expression according to the specified operator, which
* can be one of the followings:
*
* - `and`: the operands should be concatenated together using `AND`. For example,
* `array('and', 'id=1', 'id=2')` will generate `id=1 AND id=2`. If an operand is an array,
* it will be converted into a string using the rules described here. For example,
* `array('and', 'type=1', array('or', 'id=1', 'id=2'))` will generate `type=1 AND (id=1 OR id=2)`.
* The method will NOT do any quoting or escaping.
*
* - `or`: similar to the `and` operator except that the operands are concatenated using `OR`.
*
* - `between`: operand 1 should be the column name, and operand 2 and 3 should be the
* starting and ending values of the range that the column is in.
* For example, `array('between', 'id', 1, 10)` will generate `id BETWEEN 1 AND 10`.
*
* - `not between`: similar to `between` except the `BETWEEN` is replaced with `NOT BETWEEN`
* in the generated condition.
*
* - `in`: operand 1 should be a column or DB expression, and operand 2 be an array representing
* the range of the values that the column or DB expression should be in. For example,
* `array('in', 'id', array(1,2,3))` will generate `id IN (1,2,3)`.
* The method will properly quote the column name and escape values in the range.
*
* - `not in`: similar to the `in` operator except that `IN` is replaced with `NOT IN` in the generated condition.
*
* - `like`: operand 1 should be a column or DB expression, and operand 2 be a string or an array representing
* the values that the column or DB expression should be like.
* For example, `array('like', 'name', '%tester%')` will generate `name LIKE '%tester%'`.
* When the value range is given as an array, multiple `LIKE` predicates will be generated and concatenated
* using `AND`. For example, `array('like', 'name', array('%test%', '%sample%'))` will generate
* `name LIKE '%test%' AND name LIKE '%sample%'`.
* The method will properly quote the column name and escape values in the range.
*
* - `or like`: similar to the `like` operator except that `OR` is used to concatenate the `LIKE`
* predicates when operand 2 is an array.
*
* - `not like`: similar to the `like` operator except that `LIKE` is replaced with `NOT LIKE`
* in the generated condition.
*
* - `or not like`: similar to the `not like` operator except that `OR` is used to concatenate
* the `NOT LIKE` predicates.
*
* @param string|array $condition the conditions that should be put in the WHERE part.
* @param array $params the parameters (name=>value) to be bound to the query.
* For anonymous parameters, they can alternatively be specified as separate parameters to this method.
* For example, `where('type=? AND status=?', 100, 1)`.
* @return Query the query object itself
* @see andWhere()
* @see orWhere()
*/
public function where($condition, $params = array())
{
$this->where = $condition;
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
}
$this->addParams($params);
return $this;
}
/**
* Adds an additional WHERE condition to the existing one.
* The new condition and the existing one will be joined using the 'AND' operator.
* @param string|array $condition the new WHERE condition. Please refer to [[where()]]
* on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
* @see where()
* @see orWhere()
*/
public function andWhere($condition, $params = array())
{
if ($this->where === null) {
$this->where = $condition;
} else {
$this->where = array('and', $this->where, $condition);
}
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
}
$this->addParams($params);
return $this;
}
/**
* Adds an additional WHERE condition to the existing one.
* The new condition and the existing one will be joined using the 'OR' operator.
* @param string|array $condition the new WHERE condition. Please refer to [[where()]]
* on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
* @see where()
* @see andWhere()
*/
public function orWhere($condition, $params = array())
{
if ($this->where === null) {
$this->where = $condition;
} else {
$this->where = array('or', $this->where, $condition);
}
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
}
$this->addParams($params);
return $this;
}
/**
* Appends an INNER JOIN part to the query.
* @param string $table the table to be joined.
* Table name can contain schema prefix (e.g. 'public.tbl_user') and/or table alias (e.g. 'tbl_user u').
* The method will automatically quote the table name unless it contains some parenthesis
* (which means the table is given as a sub-query or DB expression).
* @param string|array $condition the join condition that should appear in the ON part.
* Please refer to [[where()]] on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
*/
public function join($table, $condition, $params = array())
{
$this->join[] = array('JOIN', $table, $condition);
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
array_shift($params);
}
return $this->addParams($params);
}
/**
* Appends a LEFT OUTER JOIN part to the query.
* @param string $table the table to be joined.
* Table name can contain schema prefix (e.g. 'public.tbl_user') and/or table alias (e.g. 'tbl_user u').
* The method will automatically quote the table name unless it contains some parenthesis
* (which means the table is given as a sub-query or DB expression).
* @param string|array $condition the join condition that should appear in the ON part.
* Please refer to [[where()]] on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query
* @return Query the query object itself
*/
public function leftJoin($table, $condition, $params = array())
{
$this->join[] = array('LEFT JOIN', $table, $condition);
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
array_shift($params);
}
return $this->addParams($params);
}
/**
* Appends a RIGHT OUTER JOIN part to the query.
* @param string $table the table to be joined.
* Table name can contain schema prefix (e.g. 'public.tbl_user') and/or table alias (e.g. 'tbl_user u').
* The method will automatically quote the table name unless it contains some parenthesis
* (which means the table is given as a sub-query or DB expression).
* @param string|array $condition the join condition that should appear in the ON part.
* Please refer to [[where()]] on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query
* @return Query the query object itself
*/
public function rightJoin($table, $condition, $params = array())
{
$this->join[] = array('RIGHT JOIN', $table, $condition);
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
array_shift($params);
}
return $this->addParams($params);
}
/**
* Appends a CROSS JOIN part to the query.
* Note that not all DBMS support CROSS JOIN.
* @param string $table the table to be joined.
* Table name can contain schema prefix (e.g. 'public.tbl_user') and/or table alias (e.g. 'tbl_user u').
* The method will automatically quote the table name unless it contains some parenthesis
* (which means the table is given as a sub-query or DB expression).
* @return Query the query object itself
*/
public function crossJoin($table)
{
$this->join[] = array('CROSS JOIN', $table);
return $this;
}
/**
* Appends a NATURAL JOIN part to the query.
* Note that not all DBMS support NATURAL JOIN.
* @param string $table the table to be joined.
* Table name can contain schema prefix (e.g. 'public.tbl_user') and/or table alias (e.g. 'tbl_user u').
* The method will automatically quote the table name unless it contains some parenthesis
* (which means the table is given as a sub-query or DB expression).
* @return Query the query object itself
*/
public function naturalJoin($table)
{
$this->join[] = array('NATURAL JOIN', $table);
return $this;
}
/**
* Sets the GROUP BY part of the query.
* @param string|array $columns the columns to be grouped by.
* Columns can be specified in either a string (e.g. "id, name") or an array (e.g. array('id', 'name')).
* The method will automatically quote the column names unless a column contains some parenthesis
* (which means the column contains a DB expression).
* @return Query the query object itself
* @see addGroupBy()
*/
public function groupBy($columns)
{
$this->groupBy = $columns;
return $this;
}
/**
* Adds additional group-by columns to the existing ones.
* @param string|array $columns additional columns to be grouped by.
* Columns can be specified in either a string (e.g. "id, name") or an array (e.g. array('id', 'name')).
* The method will automatically quote the column names unless a column contains some parenthesis
* (which means the column contains a DB expression).
* @return Query the query object itself
* @see groupBy()
*/
public function addGroupBy($columns)
{
if (empty($this->groupBy)) {
$this->groupBy = $columns;
} else {
if (!is_array($this->groupBy)) {
$this->groupBy = preg_split('/\s*,\s*/', trim($this->groupBy), -1, PREG_SPLIT_NO_EMPTY);
}
if (!is_array($columns)) {
$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY);
}
$this->groupBy = array_merge($this->groupBy, $columns);
}
return $this;
}
/**
* Sets the HAVING part of the query.
* @param string|array $condition the conditions to be put after HAVING.
* Please refer to [[where()]] on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
* @see andHaving()
* @see orHaving()
*/
public function having($condition, $params = array())
{
$this->having = $condition;
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
}
$this->addParams($params);
return $this;
}
/**
* Adds an additional HAVING condition to the existing one.
* The new condition and the existing one will be joined using the 'AND' operator.
* @param string|array $condition the new HAVING condition. Please refer to [[where()]]
* on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
* @see having()
* @see orHaving()
*/
public function andHaving($condition, $params = array())
{
if ($this->having === null) {
$this->having = $condition;
} else {
$this->having = array('and', $this->having, $condition);
}
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
}
$this->addParams($params);
return $this;
}
/**
* Adds an additional HAVING condition to the existing one.
* The new condition and the existing one will be joined using the 'OR' operator.
* @param string|array $condition the new HAVING condition. Please refer to [[where()]]
* on how to specify this parameter.
* @param array $params the parameters (name=>value) to be bound to the query.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
* @see having()
* @see andHaving()
*/
public function orHaving($condition, $params = array())
{
if ($this->having === null) {
$this->having = $condition;
} else {
$this->having = array('or', $this->having, $condition);
}
if (!is_array($params)) {
$params = func_get_args();
array_shift($params);
}
$this->addParams($params);
return $this;
}
/**
* Sets the ORDER BY part of the query.
* @param string|array $columns the columns (and the directions) to be ordered by.
* Columns can be specified in either a string (e.g. "id ASC, name DESC") or an array (e.g. array('id ASC', 'name DESC')).
* The method will automatically quote the column names unless a column contains some parenthesis
* (which means the column contains a DB expression).
* @return Query the query object itself
* @see addOrderBy()
*/
public function orderBy($columns)
{
$this->orderBy = $columns;
return $this;
}
/** /**
* Adds additional ORDER BY columns to the query. * Generates and returns the SQL statement according to this query.
* @param string|array $columns the columns (and the directions) to be ordered by. * @param Connection $connection the database connection used to generate the SQL statement.
* Columns can be specified in either a string (e.g. "id ASC, name DESC") or an array (e.g. array('id ASC', 'name DESC')). * If this parameter is not given, the `db` application component will be used.
* The method will automatically quote the column names unless a column contains some parenthesis * @return string the generated SQL statement
* (which means the column contains a DB expression).
* @return Query the query object itself
* @see orderBy()
*/
public function addOrderBy($columns)
{
if (empty($this->orderBy)) {
$this->orderBy = $columns;
} else {
if (!is_array($this->orderBy)) {
$this->orderBy = preg_split('/\s*,\s*/', trim($this->orderBy), -1, PREG_SPLIT_NO_EMPTY);
}
if (!is_array($columns)) {
$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY);
}
$this->orderBy = array_merge($this->orderBy, $columns);
}
return $this;
}
/**
* Sets the LIMIT part of the query.
* @param integer $limit the limit
* @return Query the query object itself
*/
public function limit($limit)
{
$this->limit = $limit;
return $this;
}
/**
* Sets the OFFSET part of the query.
* @param integer $offset the offset
* @return Query the query object itself
*/
public function offset($offset)
{
$this->offset = $offset;
return $this;
}
/**
* Appends a SQL statement using UNION operator.
* @param string $sql the SQL statement to be appended using UNION
* @return Query the query object itself
*/
public function union($sql)
{
$this->union[] = $sql;
return $this;
}
/**
* Sets the parameters to be bound to the query.
* @param array list of query parameter values indexed by parameter placeholders.
* For example, `array(':name'=>'Dan', ':age'=>31)`.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters.
* @return Query the query object itself
* @see addParams()
*/ */
public function params($params ) public function getSql($connection = null)
{ {
if (!is_array($params) ) { if ($connection === null) {
$params = func_get_args() ; $connection = \Yii::$application->db;
} }
$this->params = $params; return $connection->getQueryBuilder()->build($this);
return $this;
} }
/** /**
* Adds additional parameters to be bound to the query. * Creates a DB command that can be used to execute this query.
* @param array list of query parameter values indexed by parameter placeholders. * @param Connection $connection the database connection used to generate the SQL statement.
* For example, `array(':name'=>'Dan', ':age'=>31)`. * If this parameter is not given, the `db` application component will be used.
* Please refer to [[where()]] on alternative syntax of specifying anonymous parameters. * @return Command the created DB command instance.
* @return Query the query object itself
* @see params()
*/ */
public function addParams($params ) public function createCommand($connection = null)
{ {
if (!is_array($params)) { if ($connection === null) {
$params = func_get_args(); $connection = \Yii::$application->db;
}
foreach ($params as $name => $value) {
if (is_integer($name)) {
$this->params[] = $value;
} else {
$this->params[$name] = $value;
}
} }
return $this; return $connection->createCommand($this);
} }
/** /**
@ -643,7 +108,7 @@ class Query extends \yii\base\Object
$params = func_get_args(); $params = func_get_args();
array_shift($params); array_shift($params);
array_shift($params); array_shift($params);
array_shift($params ); unset($params[0] );
} }
$this->addParams($params); $this->addParams($params);
$this->operation = array(__FUNCTION__, $table, $columns, $condition, array()); $this->operation = array(__FUNCTION__, $table, $columns, $condition, array());
@ -664,7 +129,7 @@ class Query extends \yii\base\Object
if (!is_array($params)) { if (!is_array($params)) {
$params = func_get_args(); $params = func_get_args();
array_shift($params); array_shift($params);
array_shift($params ); unset($params[0] );
} }
$this->operation = array(__FUNCTION__, $table, $condition); $this->operation = array(__FUNCTION__, $table, $condition);
return $this->addParams($params); return $this->addParams($params);
@ -839,147 +304,4 @@ class Query extends \yii\base\Object
$this->operation = array(__FUNCTION__, $name, $table); $this->operation = array(__FUNCTION__, $name, $table);
return $this; return $this;
} }
/**
* Generates and returns the SQL statement according to this query.
* @param Connection $connection the database connection used to generate the SQL statement.
* If this parameter is not given, the `db` application component will be used.
* @return string the generated SQL statement
*/
public function getSql($connection = null)
{
if ($connection === null) {
$connection = \Yii::$application->db;
}
return $connection->getQueryBuilder()->build($this);
}
/**
* Creates a DB command that can be used to execute this query.
* @param Connection $connection the database connection used to generate the SQL statement.
* If this parameter is not given, the `db` application component will be used.
* @return Command the created DB command instance.
*/
public function createCommand($connection = null)
{
if ($connection === null) {
$connection = \Yii::$application->db;
}
return $connection->createCommand($this);
}
/**
* Resets the query object to its original state.
* @return Query the query object itself
*/
public function reset()
{
foreach (get_object_vars($this) as $name => $value) {
$this->$name = null;
}
return $this;
}
/**
* Merges this query with another one.
*
* The merging is done according to the following rules:
*
* - [[select]]: the union of both queries' [[select]] property values.
* - [[selectOption]], [[distinct]], [[limit]], [[offset]]: the new query
* takes precedence over this query.
* - [[where]], [[having]]: the new query's corresponding property value
* will be 'AND' together with the existing one.
* - [[params]], [[orderBy]], [[groupBy]], [[join]], [[union]]: the new query's
* corresponding property value will be appended to the existing one.
*
* In general, the merging makes the resulting query more restrictive and specific.
* @param array|Query $query the new query to be merged with this query.
* @return Query the query object itself
*/
public function mergeWith($query)
{
if (is_array($query)) {
$class = '\\' . get_class($this);
$query = $class::newInstance($query);
}
if ($this->select !== $query->select) {
if (empty($this->select)) {
$this->select = $query->select;
} elseif (!empty($query->select)) {
$select1 = is_string($this->select) ? preg_split('/\s*,\s*/', trim($this->select), -1, PREG_SPLIT_NO_EMPTY) : $this->select;
$select2 = is_string($query->select) ? preg_split('/\s*,\s*/', trim($query->select), -1, PREG_SPLIT_NO_EMPTY) : $query->select;
$this->select = array_merge($select1, array_diff($select2, $select1));
}
}
if ($query->selectOption !== null) {
$this->selectOption = $query->selectOption;
}
if ($query->distinct !== null) {
$this->distinct = $query->distinct;
}
if ($query->limit !== null) {
$this->limit = $query->limit;
}
if ($query->offset !== null) {
$this->offset = $query->offset;
}
if ($query->where !== null) {
$this->andWhere($query->where);
}
if ($query->having !== null) {
$this->andHaving($query->having);
}
if ($query->params !== null) {
$this->addParams($query->params);
}
if ($query->orderBy !== null) {
$this->addOrderBy($query->orderBy);
}
if ($query->groupBy !== null) {
$this->addGroupBy($query->groupBy);
}
if ($query->join !== null) {
if (empty($this->join)) {
$this->join = $query->join;
} else {
if (!is_array($this->join)) {
$this->join = array($this->join);
}
if (is_array($query->join)) {
$this->join = array_merge($this->join, $query->join);
} else {
$this->join[] = $query->join;
}
}
}
if ($query->union !== null) {
if (empty($this->union)) {
$this->union = $query->union;
} else {
if (!is_array($this->union)) {
$this->union = array($this->union);
}
if (is_array($query->union)) {
$this->union = array_merge($this->union, $query->union);
} else {
$this->union[] = $query->union;
}
}
}
return $this;
}
} }
Qiang Xue
13 years ago