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<?php |
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/** |
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* This file is part of the Grido (https://github.com/o5/grido) |
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* |
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* Copyright (c) 2011 Petr Bugyík (http://petr.bugyik.cz) |
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* |
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* For the full copyright and license information, please view |
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* the file LICENSE.md that was distributed with this source code. |
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*/ |
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namespace Grido\Components\Filters; |
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use Grido\Exception; |
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/** |
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* Builds filter condition. |
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* |
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* @package Grido |
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* @subpackage Components\Filters |
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* @author Petr Bugyík |
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* |
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* @property array $column |
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* @property array $condition |
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* @property mixed $value |
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* @property-read callable $callback |
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*/ |
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class Condition |
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{ |
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use \Nette\SmartObject; |
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const OPERATOR_OR = 'OR'; |
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const OPERATOR_AND = 'AND'; |
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/** @var array */ |
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protected $column; |
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/** @var array */ |
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protected $condition; |
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/** @var mixed */ |
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protected $value; |
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/** @var callable */ |
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protected $callback; |
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/** |
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* @param mixed $column |
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* @param mixed $condition |
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* @param mixed $value |
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*/ |
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public function __construct($column, $condition, $value = NULL) |
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{ |
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$this->setColumn($column); |
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$this->setCondition($condition); |
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$this->setValue($value); |
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} |
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/** |
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* @param mixed $column |
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* @throws Exception |
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* @return Condition |
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*/ |
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public function setColumn($column) |
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{ |
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if (is_array($column)) { |
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$count = count($column); |
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//check validity |
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if ($count % 2 === 0) { |
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throw new Exception('Count of column must be odd.'); |
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} |
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for ($i = 0; $i < $count; $i++) { |
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$item = $column[$i]; |
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if ($i & 1 && !self::isOperator($item)) { |
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$msg = "The even values of column must be 'AND' or 'OR', '$item' given."; |
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throw new Exception($msg); |
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} |
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} |
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} else { |
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$column = (array) $column; |
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} |
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$this->column = $column; |
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return $this; |
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} |
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/** |
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* @param mixed $condition |
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* @return Condition |
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*/ |
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public function setCondition($condition) |
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{ |
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$this->condition = (array) $condition; |
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return $this; |
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} |
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/** |
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* @param mixed $value |
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* @return Condition |
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*/ |
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public function setValue($value) |
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{ |
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$this->value = (array) $value; |
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return $this; |
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} |
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/**********************************************************************************************/ |
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/** |
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* @return array |
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*/ |
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public function getColumn() |
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{ |
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return $this->column; |
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} |
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/** |
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* @return array |
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*/ |
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public function getCondition() |
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{ |
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return $this->condition; |
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} |
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/** |
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* @return array |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* @return array |
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*/ |
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public function getValueForColumn() |
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{ |
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if (count($this->condition) > 1) { |
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return $this->value; |
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} |
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$values = []; |
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foreach ($this->getColumn() as $column) { |
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if (!self::isOperator($column)) { |
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foreach ($this->getValue() as $val) { |
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$values[] = $val; |
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} |
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} |
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} |
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return $values; |
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} |
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/** |
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* @return array |
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*/ |
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public function getColumnWithoutOperator() |
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{ |
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$columns = []; |
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foreach ($this->column as $column) { |
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if (!self::isOperator($column)) { |
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$columns[] = $column; |
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} |
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} |
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return $columns; |
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} |
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/** |
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* @return callable |
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*/ |
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public function getCallback() |
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{ |
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return $this->callback; |
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} |
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/**********************************************************************************************/ |
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/** |
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* Returns TRUE if $item is Condition:OPERATOR_AND or Condition:OPERATOR_OR else FALSE. |
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* @param string $item |
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* @return bool |
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*/ |
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public static function isOperator($item) |
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{ |
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return in_array(strtoupper($item), [self::OPERATOR_AND, self::OPERATOR_OR]); |
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} |
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/** |
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* @param mixed $column |
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* @param string $condition |
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* @param mixed $value |
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* @return Condition |
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*/ |
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public static function setup($column, $condition, $value) |
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{ |
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return new self($column, $condition, $value); |
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} |
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/** |
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* @return Condition |
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*/ |
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public static function setupEmpty() |
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{ |
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return new self(NULL, '0 = 1'); |
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} |
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/** |
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* @param array $condition |
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* @throws Exception |
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* @return Condition |
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*/ |
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public static function setupFromArray(array $condition) |
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{ |
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if (count($condition) !== 3) { |
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throw new Exception("Condition array must contain 3 items."); |
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} |
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return new self($condition[0], $condition[1], $condition[2]); |
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} |
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/** |
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* @param callable $callback |
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* @param mixed $value |
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* @return Condition |
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*/ |
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public static function setupFromCallback($callback, $value) |
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{ |
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$self = new self(NULL, NULL); |
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$self->value = $value; |
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$self->callback = $callback; |
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return $self; |
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} |
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/**********************************************************************************************/ |
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/** |
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* @param string $prefix - column prefix |
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* @param string $suffix - column suffix |
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* @param bool $brackets - add brackets when multiple where |
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* @throws Exception |
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* @return array |
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*/ |
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public function __toArray($prefix = NULL, $suffix = NULL, $brackets = TRUE) |
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{ |
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$condition = []; |
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$addBrackets = $brackets && count($this->column) > 1; |
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if ($addBrackets) { |
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$condition[] = '('; |
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} |
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$i = 0; |
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foreach ($this->column as $column) { |
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if (self::isOperator($column)) { |
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$operator = strtoupper($column); |
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$condition[] = " $operator "; |
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} else { |
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$i = count($this->condition) > 1 ? $i : 0; |
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$condition[] = "{$prefix}$column{$suffix} {$this->condition[$i]}"; |
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$i++; |
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} |
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} |
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if ($addBrackets) { |
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$condition[] = ')'; |
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} |
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return $condition |
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? array_values(array_merge([implode('', $condition)], $this->getValueForColumn())) |
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: $this->condition; |
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} |
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} |
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