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172 lines
5.3 KiB
172 lines
5.3 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\conditions; |
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use yii\db\ExpressionBuilderInterface; |
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use yii\db\ExpressionBuilderTrait; |
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use yii\db\ExpressionInterface; |
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use yii\db\Query; |
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/** |
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* Class InConditionBuilder builds objects of [[InCondition]] |
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* |
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* @author Dmytro Naumenko <d.naumenko.a@gmail.com> |
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* @since 2.0.14 |
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*/ |
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class InConditionBuilder implements ExpressionBuilderInterface |
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{ |
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use ExpressionBuilderTrait; |
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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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$operator = $expression->getOperator(); |
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$column = $expression->getColumn(); |
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$values = $expression->getValues(); |
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if ($column === []) { |
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// no columns to test against |
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return $operator === 'IN' ? '0=1' : ''; |
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} |
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if ($values instanceof Query) { |
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return $this->buildSubqueryInCondition($operator, $column, $values, $params); |
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} |
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if (!is_array($values) && !$values instanceof \Traversable) { |
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// ensure values is an array |
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$values = (array) $values; |
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} |
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if ($column instanceof \Traversable || ((is_array($column) || $column instanceof \Countable) && count($column) > 1)) { |
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return $this->buildCompositeInCondition($operator, $column, $values, $params); |
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} |
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if (is_array($column)) { |
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$column = reset($column); |
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} |
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$sqlValues = $this->buildValues($expression, $values, $params); |
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if (empty($sqlValues)) { |
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return $operator === 'IN' ? '0=1' : ''; |
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} |
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if (strpos($column, '(') === false) { |
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$column = $this->queryBuilder->db->quoteColumnName($column); |
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} |
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if (count($sqlValues) > 1) { |
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return "$column $operator (" . implode(', ', $sqlValues) . ')'; |
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} |
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$operator = $operator === 'IN' ? '=' : '<>'; |
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return $column . $operator . reset($sqlValues); |
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} |
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/** |
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* Builds $values to be used in [[InCondition]] |
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* |
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* @param ConditionInterface|InCondition $condition |
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* @param array $values |
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* @param array $params the binding parameters |
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* @return array of prepared for SQL placeholders |
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*/ |
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protected function buildValues(ConditionInterface $condition, $values, &$params) |
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{ |
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$sqlValues = []; |
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$column = $condition->getColumn(); |
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foreach ($values as $i => $value) { |
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if (is_array($value) || $value instanceof \ArrayAccess) { |
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$value = isset($value[$column]) ? $value[$column] : null; |
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} |
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if ($value === null) { |
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$sqlValues[$i] = 'NULL'; |
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} elseif ($value instanceof ExpressionInterface) { |
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$sqlValues[$i] = $this->queryBuilder->buildExpression($value, $params); |
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} else { |
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$sqlValues[$i] = $this->queryBuilder->bindParam($value, $params); |
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} |
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} |
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return $sqlValues; |
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} |
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/** |
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* Builds SQL for IN condition. |
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* |
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* @param string $operator |
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* @param array|string $columns |
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* @param Query $values |
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* @param array $params |
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* @return string SQL |
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*/ |
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protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
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{ |
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$sql = $this->queryBuilder->buildExpression($values, $params); |
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if (is_array($columns)) { |
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foreach ($columns as $i => $col) { |
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if (strpos($col, '(') === false) { |
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$columns[$i] = $this->queryBuilder->db->quoteColumnName($col); |
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} |
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} |
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return '(' . implode(', ', $columns) . ") $operator $sql"; |
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} |
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if (strpos($columns, '(') === false) { |
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$columns = $this->queryBuilder->db->quoteColumnName($columns); |
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} |
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return "$columns $operator $sql"; |
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} |
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/** |
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* Builds SQL for IN condition. |
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* |
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* @param string $operator |
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* @param array|\Traversable $columns |
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* @param array $values |
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* @param array $params |
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* @return string SQL |
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*/ |
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protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
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{ |
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$vss = []; |
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foreach ($values as $value) { |
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$vs = []; |
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foreach ($columns as $column) { |
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if (isset($value[$column])) { |
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$vs[] = $this->queryBuilder->bindParam($value[$column], $params); |
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} else { |
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$vs[] = 'NULL'; |
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} |
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} |
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$vss[] = '(' . implode(', ', $vs) . ')'; |
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} |
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if (empty($vss)) { |
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return $operator === 'IN' ? '0=1' : ''; |
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} |
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$sqlColumns = []; |
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foreach ($columns as $i => $column) { |
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$sqlColumns[] = strpos($column, '(') === false ? $this->queryBuilder->db->quoteColumnName($column) : $column; |
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} |
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return '(' . implode(', ', $sqlColumns) . ") $operator (" . implode(', ', $vss) . ')'; |
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} |
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}
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