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<?php |
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declare(strict_types=1); |
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namespace QB\Generic\Statement; |
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use QB\Generic\Clause\Table; |
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class Insert implements IInsert |
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{ |
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/** @var array<int,string|Table> */ |
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protected array $tables = []; |
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/** @var string[] */ |
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protected array $modifiers = []; |
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/** @var array<int|string,string> */ |
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protected array $columns = []; |
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/** @var array<int,mixed> */ |
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protected array $values = []; |
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/** |
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* @param string|Table $table |
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* |
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* @return $this |
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*/ |
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public function setInto(string|Table $table): static |
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{ |
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$this->tables = [$table]; |
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return $this; |
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} |
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/** |
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* @param string ...$modifiers |
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* |
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* @return $this |
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*/ |
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public function addModifier(string ...$modifiers): static |
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{ |
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$this->modifiers = array_merge($this->modifiers, $modifiers); |
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return $this; |
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} |
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/** |
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* @param string $column |
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* @param string|null $alias |
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* |
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* @return $this |
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*/ |
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public function addColumn(string $column, ?string $alias = null): static |
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{ |
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if ($alias === null) { |
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$this->columns[] = $column; |
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} else { |
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$this->columns[$alias] = $column; |
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} |
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return $this; |
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} |
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/** |
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* @param string ...$columns |
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* |
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* @return $this |
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*/ |
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public function addColumns(string ...$columns): static |
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{ |
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foreach ($columns as $rawColumn) { |
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if (strpos($rawColumn, ' AS ')) { |
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$parts = explode(' AS ', $rawColumn); |
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$this->columns[$parts[1]] = $parts[0]; |
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} else { |
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$this->columns[] = $rawColumn; |
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} |
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} |
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return $this; |
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} |
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/** |
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* @param mixed ...$values |
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* |
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* @return $this |
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*/ |
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public function addValues(...$values): static |
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{ |
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if (count($this->columns) && count($values) !== count($this->columns)) { |
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throw new \InvalidArgumentException('number of values does not match the number of columns'); |
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} |
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$this->values[] = $values; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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if (!$this->isValid()) { |
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throw new \RuntimeException('under-initialized INSERT query'); |
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} |
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$insert = $this->insert(); |
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$sqlParts = array_merge( |
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[$insert], |
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$this->values(), |
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); |
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$sqlParts = array_filter($sqlParts); |
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return implode(PHP_EOL, $sqlParts); |
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} |
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public function isValid(): bool |
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{ |
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return count($this->tables) === 1 && count($this->values) > 0; |
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} |
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protected function insert(): string |
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{ |
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$sql = []; |
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$sql[] = 'INSERT'; |
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$sql[] = $this->getModifiers(); |
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$sql[] = 'INTO'; |
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$sql[] = $this->tables[0]; |
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$sql = array_filter($sql); |
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$sql = implode(' ', $sql); |
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if (count($this->columns) === 0) { |
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return $sql; |
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} |
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$columnParts = []; |
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foreach ($this->columns as $alias => $column) { |
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if (is_numeric($alias)) { |
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$columnParts[] = $column; |
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} else { |
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$columnParts[] = "$column AS $alias"; |
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} |
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} |
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return $sql . ' (' . implode(', ', $columnParts) . ')'; |
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} |
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protected function getModifiers(): string |
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{ |
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if (empty($this->modifiers)) { |
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return ''; |
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} |
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return implode(' ', $this->modifiers); |
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} |
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protected function values(): array |
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{ |
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$columnCount = count($this->columns) > 0 ? count($this->columns) : count($this->values[0]); |
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$values = array_fill(0, $columnCount, '?'); |
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$row = sprintf('(%s)', implode(', ', $values)); |
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$rows = array_fill(0, count($this->values), $row); |
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return ['VALUES ' . implode(",\n", $rows)]; |
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} |
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/** |
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* @return array |
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*/ |
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public function getParams(): array |
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{ |
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$params = []; |
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foreach ($this->values as $values) { |
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foreach ($values as $value) { |
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$params[] = [$value, \PDO::PARAM_STR]; |
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} |
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} |
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return $params; |
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} |
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/** |
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* @return array |
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*/ |
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public function getValues(): array |
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{ |
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return array_merge(...$this->values); |
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} |
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} |
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abterphp /
qb
