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<?php |
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namespace mindplay\sql\model\query; |
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use mindplay\sql\model\Driver; |
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use mindplay\sql\model\schema\Column; |
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use mindplay\sql\model\schema\Table; |
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use mindplay\sql\model\TypeProvider; |
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use RuntimeException; |
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/** |
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* This class represents an INSERT query. |
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*/ |
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class InsertQuery extends Query |
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{ |
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private Driver $driver; |
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private Table $table; |
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/** |
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* @var Column[] |
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*/ |
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private array $columns; |
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/** |
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* @var string[] list of tuple expressions |
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*/ |
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private $tuples = []; |
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/** |
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* @param Driver $driver |
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* @param TypeProvider $types |
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* @param Table $table Table to INSERT into |
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*/ |
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public function __construct(Driver $driver, TypeProvider $types, Table $table) |
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{ |
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parent::__construct($types); |
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if ($table->getAlias()) { |
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throw new RuntimeException("can't insert into a Table instance with an alias"); |
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} |
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$this->driver = $driver; |
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$this->table = $table; |
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$this->columns = array_filter( |
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$table->listColumns(), |
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function (Column $column) { |
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return $column->isAuto() === false; |
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} |
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); |
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} |
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/** |
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* Add a record to this INSERT query. |
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* |
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* @param array<string,mixed> $record record map (where Column name => value) |
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* |
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* @return $this |
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*/ |
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public function add(array $record): static |
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{ |
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$placeholders = []; |
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$tuple_num = count($this->tuples); |
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foreach ($this->columns as $col_index => $column) { |
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$name = $column->getName(); |
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if (array_key_exists($name, $record)) { |
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$value = $record[$name]; |
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} elseif ($column->isRequired() === false) { |
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$value = $column->getDefault(); |
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} else { |
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throw new RuntimeException("required value '{$name}' missing from tuple # {$tuple_num}"); |
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} |
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$placeholder = "c{$tuple_num}_{$col_index}"; |
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$placeholders[] = ":{$placeholder}"; |
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$this->bind($placeholder, $value, $column->getType()); |
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} |
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$this->tuples[] = "(" . implode(", ", $placeholders) . ")"; |
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return $this; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getSQL(): string |
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{ |
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if (count($this->tuples) === 0) { |
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throw new RuntimeException("no records added to this query"); |
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} |
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$table = "{$this->table}"; |
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$quoted_column_names = implode( |
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", ", |
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array_map( |
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function (Column $column) { |
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return $this->driver->quoteName($column->getName()); |
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}, |
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$this->columns |
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) |
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); |
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return "INSERT INTO {$table} ({$quoted_column_names}) VALUES\n" . implode(",\n", $this->tuples); |
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} |
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} |
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mindplay-dk /
sql
