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72 lines
2.3 KiB
72 lines
2.3 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\db\oci\conditions; |
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use yii\db\conditions\InCondition; |
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use yii\db\ExpressionInterface; |
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/** |
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* {@inheritdoc} |
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*/ |
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class InConditionBuilder extends \yii\db\conditions\InConditionBuilder |
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{ |
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/** |
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* Method builds the raw SQL from the $expression that will not be additionally |
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* escaped or quoted. |
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* |
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* @param ExpressionInterface|InCondition $expression the expression to be built. |
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* @param array $params the binding parameters. |
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* @return string the raw SQL that will not be additionally escaped or quoted. |
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*/ |
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public function build(ExpressionInterface $expression, array &$params = []) |
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{ |
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$splitCondition = $this->splitCondition($expression, $params); |
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if ($splitCondition !== null) { |
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return $splitCondition; |
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} |
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return parent::build($expression, $params); |
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} |
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/** |
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* Oracle DBMS does not support more than 1000 parameters in `IN` condition. |
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* This method splits long `IN` condition into series of smaller ones. |
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* |
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* @param ExpressionInterface|InCondition $condition the expression to be built. |
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* @param array $params the binding parameters. |
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* @return null|string null when split is not required. Otherwise - built SQL condition. |
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*/ |
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protected function splitCondition(InCondition $condition, &$params) |
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{ |
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$operator = $condition->getOperator(); |
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$values = $condition->getValues(); |
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$column = $condition->getColumn(); |
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if ($values instanceof \Traversable) { |
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$values = iterator_to_array($values); |
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} |
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if (!is_array($values)) { |
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return null; |
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} |
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$maxParameters = 1000; |
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$count = count($values); |
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if ($count <= $maxParameters) { |
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return null; |
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} |
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$slices = []; |
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for ($i = 0; $i < $count; $i += $maxParameters) { |
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$slices[] = $this->queryBuilder->createConditionFromArray([$operator, $column, array_slice($values, $i, $maxParameters)]); |
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} |
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array_unshift($slices, ($operator === 'IN') ? 'OR' : 'AND'); |
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return $this->queryBuilder->buildCondition($slices, $params); |
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} |
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}
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