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<?php |
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namespace SilverStripe\ORM\Connect; |
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/** |
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* A result-set from a MySQL database (using MySQLiConnector) |
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* Note that this class is only used for the results of non-prepared statements |
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*/ |
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class MySQLQuery extends Query |
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{ |
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/** |
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* The internal MySQL handle that points to the result set. |
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* Select queries will have mysqli_result as a value. |
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* Non-select queries will not |
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* |
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* @var mixed |
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*/ |
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protected $handle; |
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/** |
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* Metadata about the columns of this query |
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*/ |
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protected $columns; |
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/** |
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* Hook the result-set given into a Query class, suitable for use by SilverStripe. |
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* |
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* @param MySQLiConnector $database The database object that created this query. |
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* @param mixed $handle the internal mysql handle that is points to the resultset. |
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* Non-mysqli_result values could be given for non-select queries (e.g. true) |
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*/ |
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public function __construct($database, $handle) |
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{ |
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$this->handle = $handle; |
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if (is_object($this->handle)) { |
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$this->columns = $this->handle->fetch_fields(); |
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} |
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} |
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public function __destruct() |
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{ |
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if (is_object($this->handle)) { |
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$this->handle->free(); |
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} |
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} |
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public function getIterator() |
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{ |
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if (is_object($this->handle)) { |
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while ($data = $this->nextRecord()) { |
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yield $data; |
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} |
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} |
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} |
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public function numRecords() |
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{ |
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if (is_object($this->handle)) { |
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return $this->handle->num_rows; |
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} |
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return null; |
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} |
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public function nextRecord() |
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{ |
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$floatTypes = [MYSQLI_TYPE_FLOAT, MYSQLI_TYPE_DOUBLE, MYSQLI_TYPE_DECIMAL, MYSQLI_TYPE_NEWDECIMAL]; |
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if (is_object($this->handle) && ($row = $this->handle->fetch_array(MYSQLI_NUM))) { |
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$data = []; |
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foreach ($row as $i => $value) { |
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if (!isset($this->columns[$i])) { |
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throw new DatabaseException("Can't get metadata for column $i"); |
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} |
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if (in_array($this->columns[$i]->type, $floatTypes)) { |
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$value = (float)$value; |
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} |
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$data[$this->columns[$i]->name] = $value; |
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} |
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return $data; |
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} else { |
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return false; |
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} |
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} |
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} |
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silverstripe /
silverstripe-framework
