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<?php
namespace ipl\Sql;
use InvalidArgumentException;
use function ipl\Stdlib\arrayval;
/**
* SQL UPDATE query
*/
class Update implements CommonTableExpressionInterface, WhereInterface
{
use CommonTableExpression;
use Where;
/** @var array|null The table for the UPDATE query */
protected $table;
/** @var array|null The columns to update in terms of column-value pairs */
protected $set = [];
/**
* Get the table for the UPDATE query
*
* @return array|null
*/
public function getTable()
{
return $this->table;
}
/**
* Set the table for the UPDATE query
*
* Note that this method does NOT quote the table you specify for the UPDATE.
* If you allow user input here, you must protected yourself against SQL injection using
* {@link Connection::quoteIdentifier()} for the table names passed to this method.
* If you are using special table names, e.g. reserved keywords for your DBMS, you are required to use
* {@link Connection::quoteIdentifier()} as well.
*
* @param string|array $table The table to update. The table specification must be in one of the
* following formats: 'table', 'table alias', ['alias' => 'table']
*
* @return $this
*/
public function table($table)
{
$this->table = is_array($table) ? $table : [$table];
return $this;
}
/**
* Get the columns to update in terms of column-value pairs
*
* @return array|null
*/
public function getSet()
{
return $this->set;
}
/**
* Set the columns to update in terms of column-value pairs
*
* Values may either be plain or expressions or scalar subqueries.
*
* Note that this method does NOT quote the columns you specify for the UPDATE.
* If you allow user input here, you must protected yourself against SQL injection using
* {@link Connection::quoteIdentifier()} for the column names passed to this method.
* If you are using special column names, e.g. reserved keywords for your DBMS, you are required to use
* {@link Connection::quoteIdentifier()} as well.
*
* @param iterable $set Associative set of column-value pairs
*
* @return $this
*
* @throws InvalidArgumentException If set type is invalid
*/
public function set($set)
{
$this->set = arrayval($set);
return $this;
}
public function __clone()
{
$this->cloneCte();
$this->cloneWhere();
foreach ($this->set as &$value) {
if ($value instanceof ExpressionInterface || $value instanceof Select) {
$value = clone $value;
}
}
unset($value);
}
}
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