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<?php |
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namespace samsonframework\orm; |
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/** |
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* Query condition arguments group |
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* @author Vitaly Iegorov <[email protected]> |
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* @version 2.0 |
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*/ |
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class Condition implements ConditionInterface |
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{ |
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/** @var string Relation logic between arguments */ |
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public $relation = ConditionInterface::CONJUNCTION; |
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/** @var Argument[] Collection of condition arguments */ |
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protected $arguments = array(); |
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/** |
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* Add condition argument to this condition group |
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* @param ArgumentInterface $argument Condition argument to be added |
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* @return self Chaining |
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*/ |
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public function addArgument(ArgumentInterface $argument) |
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{ |
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// Add condition as current condition argument |
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$this->arguments[] = $argument; |
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return $this; |
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} |
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/** |
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* Add condition group to this condition group |
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* @param ConditionInterface $condition Condition group to be added |
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* @return self Chaining |
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*/ |
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public function addCondition(ConditionInterface $condition) |
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{ |
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// Add condition as current condition argument |
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$this->arguments[] = $condition; |
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return $this; |
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} |
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/** |
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* Generic condition addiction function |
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* @param string $argument Entity for adding to arguments collection |
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* @param mixed $value Argument value |
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* @param string $relation Relation between argument and value |
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* @return self Chaining |
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*/ |
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public function add($argument, $value, $relation = ArgumentInterface::EQUAL) |
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{ |
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if (is_string($argument)) { |
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// Add new argument to arguments collection |
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$this->arguments[] = new Argument($argument, $value, $relation); |
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} |
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return $this; |
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} |
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/** |
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* Constructor |
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* @param string $relation Relation type between arguments |
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*/ |
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public function __construct($relation = null) |
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{ |
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$this->relation = isset($relation) ? $relation : ConditionInterface::CONJUNCTION; |
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} |
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/** |
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* Return the current element |
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* @link http://php.net/manual/en/iterator.current.php |
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* @return mixed Can return any type. |
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* @since 5.0.0 |
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*/ |
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public function current() |
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{ |
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return current($this->arguments); |
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} |
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/** |
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* Move forward to next element |
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* @link http://php.net/manual/en/iterator.next.php |
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* @return void Any returned value is ignored. |
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* @since 5.0.0 |
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*/ |
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public function next() |
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{ |
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next($this->arguments); |
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} |
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/** |
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* Return the key of the current element |
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* @link http://php.net/manual/en/iterator.key.php |
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* @return mixed scalar on success, or null on failure. |
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* @since 5.0.0 |
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*/ |
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public function key() |
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{ |
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return key($this->arguments); |
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} |
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/** |
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* Checks if current position is valid |
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* @link http://php.net/manual/en/iterator.valid.php |
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* @return boolean The return value will be casted to boolean and then evaluated. |
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* Returns true on success or false on failure. |
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* @since 5.0.0 |
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*/ |
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public function valid() |
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{ |
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return key($this->arguments) !== null; |
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} |
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/** |
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* Rewind the Iterator to the first element |
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* @link http://php.net/manual/en/iterator.rewind.php |
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* @return void Any returned value is ignored. |
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* @since 5.0.0 |
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*/ |
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public function rewind() |
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{ |
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reset($this->arguments); |
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} |
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} |
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samsonframework /
orm
