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vendor/yiisoft/yii2/db/conditions/ConjunctionConditionBuilder.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\db\conditions;
+
+use yii\db\ExpressionBuilderInterface;
+use yii\db\ExpressionBuilderTrait;
+use yii\db\ExpressionInterface;
+
+/**
+ * Class ConjunctionConditionBuilder builds objects of abstract class [[ConjunctionCondition]]
+ *
+ * @author Dmytro Naumenko <d.naumenko.a@gmail.com>
+ * @since 2.0.14
+ */
+class ConjunctionConditionBuilder implements ExpressionBuilderInterface
+{
+    use ExpressionBuilderTrait;
+
+
+    /**
+     * Method builds the raw SQL from the $expression that will not be additionally
+     * escaped or quoted.
+     *
+     * @param ExpressionInterface|ConjunctionCondition $condition the expression to be built.
+     * @param array $params the binding parameters.
+     * @return string the raw SQL that will not be additionally escaped or quoted.
+     */
+    public function build(ExpressionInterface $condition, array &$params = [])
+    {
+        $parts = $this->buildExpressionsFrom($condition, $params);
+
+        if (empty($parts)) {
+            return '';
+        }
+
+        if (count($parts) === 1) {
+            return reset($parts);
+        }
+
+        return '(' . implode(") {$condition->getOperator()} (", $parts) . ')';
+    }
+
+    /**
+     * Builds expressions, that are stored in $condition
+     *
+     * @param ExpressionInterface|ConjunctionCondition $condition the expression to be built.
+     * @param array $params the binding parameters.
+     * @return string[]
+     */
+    private function buildExpressionsFrom(ExpressionInterface $condition, &$params = [])
+    {
+        $parts = [];
+        foreach ($condition->getExpressions() as $condition) {
+            if (is_array($condition)) {
+                $condition = $this->queryBuilder->buildCondition($condition, $params);
+            }
+            if ($condition instanceof ExpressionInterface) {
+                $condition = $this->queryBuilder->buildExpression($condition, $params);
+            }
+            if ($condition !== '') {
+                $parts[] = $condition;
+            }
+        }
+
+        return $parts;
+    }
+}