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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Sqlite; |
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use Yiisoft\Db\Expression\ExpressionBuilderInterface; |
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use Yiisoft\Db\Expression\ExpressionInterface; |
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use Yiisoft\Db\Query\Query; |
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use Yiisoft\Db\Query\QueryInterface; |
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use Yiisoft\Db\QueryBuilder\AbstractDQLQueryBuilder; |
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use Yiisoft\Db\QueryBuilder\Condition\InCondition; |
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use Yiisoft\Db\QueryBuilder\Condition\LikeCondition; |
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use Yiisoft\Db\Sqlite\Builder\InConditionBuilder; |
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use Yiisoft\Db\Sqlite\Builder\LikeConditionBuilder; |
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use function array_filter; |
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use function array_merge; |
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use function implode; |
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use function trim; |
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/** |
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* Implements a DQL (Data Query Language) SQL statements for SQLite Server. |
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*/ |
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final class DQLQueryBuilder extends AbstractDQLQueryBuilder |
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{ |
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public function build(QueryInterface $query, array $params = []): array |
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{ |
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$query = $query->prepare($this->queryBuilder); |
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$params = empty($params) ? $query->getParams() : array_merge($params, $query->getParams()); |
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$clauses = [ |
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$this->buildSelect($query->getSelect(), $params, $query->getDistinct(), $query->getSelectOption()), |
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$this->buildFrom($query->getFrom(), $params), |
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$this->buildJoin($query->getJoin(), $params), |
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$this->buildWhere($query->getWhere(), $params), |
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$this->buildGroupBy($query->getGroupBy()), |
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$this->buildHaving($query->getHaving(), $params), |
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]; |
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$orderBy = $query->getOrderBy(); |
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$sql = implode($this->separator, array_filter($clauses)); |
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$sql = $this->buildOrderByAndLimit($sql, $orderBy, $query->getLimit(), $query->getOffset()); |
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if (!empty($orderBy)) { |
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/** @psalm-var array<string|ExpressionInterface> $orderBy */ |
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foreach ($orderBy as $expression) { |
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if ($expression instanceof ExpressionInterface) { |
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$this->buildExpression($expression, $params); |
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} |
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} |
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} |
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$groupBy = $query->getGroupBy(); |
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if (!empty($groupBy)) { |
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/** @psalm-var array<string|ExpressionInterface> $groupBy */ |
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foreach ($groupBy as $expression) { |
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if ($expression instanceof ExpressionInterface) { |
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$this->buildExpression($expression, $params); |
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} |
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} |
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} |
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$union = $this->buildUnion($query->getUnion(), $params); |
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if ($union !== '') { |
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$sql = "$sql$this->separator$union"; |
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} |
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$with = $this->buildWithQueries($query->getWithQueries(), $params); |
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if ($with !== '') { |
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$sql = "$with$this->separator$sql"; |
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} |
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return [$sql, $params]; |
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} |
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public function buildLimit(ExpressionInterface|int|null $limit, ExpressionInterface|int|null $offset): string |
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{ |
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$sql = ''; |
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if ($this->hasLimit($limit)) { |
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$sql = 'LIMIT ' . ($limit instanceof ExpressionInterface ? $this->buildExpression($limit) : (string)$limit); |
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if ($this->hasOffset($offset)) { |
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$sql .= ' OFFSET ' . |
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($offset instanceof ExpressionInterface ? $this->buildExpression($offset) : (string)$offset); |
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} |
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} elseif ($this->hasOffset($offset)) { |
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/** |
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* Limit isn't optional in SQLite. |
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* |
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* {@see http://www.sqlite.org/syntaxdiagrams.html#select-stmt} |
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*/ |
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$sql = 'LIMIT 9223372036854775807 OFFSET ' . // 2^63-1 |
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($offset instanceof ExpressionInterface ? $this->buildExpression($offset) : (string)$offset); |
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} |
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return $sql; |
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} |
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public function buildUnion(array $unions, array &$params = []): string |
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{ |
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if (empty($unions)) { |
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return ''; |
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} |
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$result = ''; |
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/** @psalm-var array<array-key, array{query: Query|null, all: bool}> $unions */ |
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foreach ($unions as $i => $union) { |
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$query = $union['query']; |
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if ($query instanceof QueryInterface) { |
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[$unions[$i]['query'], $params] = $this->build($query, $params); |
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} |
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$result .= ' UNION ' . ($union['all'] ? 'ALL ' : '') . ' ' . (string) $unions[$i]['query']; |
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} |
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return trim($result); |
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} |
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/** |
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* Has an array of default expression builders. |
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* |
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* Extend this method and override it if you want to change default expression builders for this query builder. |
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* |
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* {@see ExpressionBuilder} docs for details. |
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* |
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* @psalm-return array<string, class-string<ExpressionBuilderInterface>> |
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*/ |
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protected function defaultExpressionBuilders(): array |
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{ |
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return array_merge(parent::defaultExpressionBuilders(), [ |
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LikeCondition::class => LikeConditionBuilder::class, |
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InCondition::class => InConditionBuilder::class, |
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]); |
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} |
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} |
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yiisoft /
db-sqlite
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