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<?php |
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namespace Wandu\Database\Query\Expression; |
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use Wandu\Database\Contracts\ExpressionInterface; |
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/** |
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* LogicalExpression = '(' ComparisonExpression (' AND '|' OR ') LogicalExpression ')' | ComparisonExpression |
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* |
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* @example `abc` = 30 |
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* @example (`abc` = 30 AND `foo` = 30 OR `foo` = 40) |
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*/ |
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class LogicalExpression implements ExpressionInterface |
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{ |
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/** @var array */ |
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protected $operators = []; |
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/** @var \Wandu\Database\Contracts\ExpressionInterface[] */ |
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protected $expressions = []; |
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/** |
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* @param string|array|callable $name |
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* @param string $operator |
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* @param string $value |
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* @return static |
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*/ |
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public function where($name, $operator = null, $value = null) |
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{ |
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return $this->andWhere($name, $operator, $value); |
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} |
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/** |
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* @param string|array|callable $name |
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* @param string $operator |
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* @param string $value |
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* @return static |
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*/ |
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public function andWhere($name, $operator = null, $value = null) |
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{ |
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$this->addWhereQuery('AND', $name, $operator, $value); |
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return $this; |
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} |
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/** |
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* @param string|array|callable $name |
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* @param string $operator |
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* @param string $value |
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* @return static |
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*/ |
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public function orWhere($name, $operator = null, $value = null) |
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{ |
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$this->addWhereQuery('OR', $name, $operator, $value); |
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return $this; |
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} |
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protected function addWhereQuery($logicalOp, $name, $operator = null, $value = null) |
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{ |
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if (!is_string($name) && is_callable($name)) { |
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$newWhere = new LogicalExpression(); |
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$newWhereResult = call_user_func($name, $newWhere); |
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$this->operators[] = $logicalOp; |
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$this->expressions[] = $newWhereResult ?: $newWhere; |
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} elseif (!is_array($name)) { |
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if (!isset($value)) { |
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$value = $operator; |
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$operator = '='; |
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} |
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$this->operators[] = $logicalOp; |
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$this->expressions[] = new ComparisonExpression($name, $operator, $value); |
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} else { |
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foreach ($name as $column => $value) { |
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if (is_array($value)) { |
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$newWhere = new LogicalExpression(); |
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foreach ($value as $innerOperator => $innerValue) { |
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$newWhere->andWhere($column, $innerOperator, $innerValue); |
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} |
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$this->operators[] = $logicalOp; |
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$this->expressions[] = $newWhere; |
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} else { |
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$this->operators[] = $logicalOp; |
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$this->expressions[] = new ComparisonExpression($column, '=', $value); |
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} |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toSql() |
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{ |
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$sql = ''; |
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foreach ($this->expressions as $index => $expression) { |
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if ($index) { |
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$sql .= ' ' . $this->operators[$index] . ' '; |
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} |
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$sql .= $expression->toSql(); |
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} |
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if (count($this->expressions) > 1) { |
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$sql = "(" . $sql . ")"; |
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} |
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return $sql; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getBindings() |
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{ |
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return array_reduce($this->expressions, function ($carry, ExpressionInterface $expression) { |
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return array_merge($carry, $expression->getBindings()); |
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}, []); |
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} |
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} |
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Wandu /
Framework
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.