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<?php |
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/** |
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* Copyright 2021 Aleksandar Panic |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace ArekX\PQL\Drivers\Pdo\MySql\Builders; |
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use ArekX\PQL\Contracts\StructuredQuery; |
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use ArekX\PQL\Drivers\Pdo\MySql\Builders\Traits\AliasTrait; |
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use ArekX\PQL\Drivers\Pdo\MySql\Builders\Traits\FromPartTrait; |
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use ArekX\PQL\Drivers\Pdo\MySql\Builders\Traits\JoinTrait; |
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use ArekX\PQL\Drivers\Pdo\MySql\Builders\Traits\NumberPartTrait; |
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use ArekX\PQL\Drivers\Pdo\MySql\Builders\Traits\WhereTrait; |
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use ArekX\PQL\Drivers\Pdo\MySql\MySqlQueryBuilderState; |
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use ArekX\PQL\Sql\Query\Select; |
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/** |
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* Represents a query builder for building a SELECT query. |
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* |
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* @see Select |
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*/ |
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class SelectBuilder extends QueryPartBuilder |
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{ |
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use AliasTrait; |
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use FromPartTrait; |
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use WhereTrait; |
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use NumberPartTrait; |
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use JoinTrait; |
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/** |
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* @inheritDoc |
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*/ |
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protected function getInitialParts(): array |
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{ |
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return ['SELECT']; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getRequiredParts(): array |
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{ |
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return []; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getPartBuilders(): array |
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{ |
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return [ |
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'columns' => fn($part, $state) => $this->buildAliasedNames($part, $state), |
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'from' => fn($part, $state) => $this->buildFrom($part, $state), |
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'join' => fn($part, $state) => $this->buildJoin($part, $state), |
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'where' => fn($part, $state) => $this->buildWhere($part, $state), |
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'groupBy' => fn($part, $state) => $this->buildGroupBy($part, $state), |
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'having' => fn($part, $state) => $this->buildHaving($part, $state), |
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'orderBy' => fn($part, $state) => $this->buildOrderBy($part, $state), |
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'limit' => fn($part) => $this->buildLimit($part), |
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'offset' => fn($part) => $this->buildOffset($part), |
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]; |
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} |
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/** |
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* Build GROUP BY part |
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* |
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* @param array|StructuredQuery $groupBy Part to be build |
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* @param MySqlQueryBuilderState $state Query builder state |
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* @return string |
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*/ |
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protected function buildGroupBy(StructuredQuery|array $groupBy, MySqlQueryBuilderState $state): string |
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{ |
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if ($groupBy instanceof StructuredQuery) { |
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return 'GROUP BY ' . $this->buildQuery($groupBy, $state); |
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} |
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$result = []; |
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foreach ($groupBy as $name) { |
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$result[] = $this->quoteName($name); |
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} |
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return 'GROUP BY ' . implode(', ', $result); |
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} |
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/** |
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* Build HAVING part |
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* |
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* @param array|StructuredQuery $condition Condition to be built. |
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* @param MySqlQueryBuilderState $state Query builder state |
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* @return string |
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* @throws \Exception |
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*/ |
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protected function buildHaving(StructuredQuery|array $condition, MySqlQueryBuilderState $state): string |
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{ |
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return 'HAVING ' . $this->buildCondition($condition, $state); |
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} |
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/** |
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* Build ORDER BY part |
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* |
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* @param array|StructuredQuery $orders Part to be built |
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* @param MySqlQueryBuilderState $state Query builder state |
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* @return string |
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*/ |
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protected function buildOrderBy(StructuredQuery|array $orders, MySqlQueryBuilderState $state): string |
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{ |
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if ($orders instanceof StructuredQuery) { |
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return 'ORDER BY '. $this->buildQuery($orders, $state); |
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} |
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$result = []; |
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foreach ($orders as $by => $order) { |
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if (!is_string($order)) { |
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$order = $order === SORT_ASC ? 'asc' : 'desc'; |
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} |
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$result[] = $this->quoteName($by) . ' ' . strtoupper($order); |
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} |
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return 'ORDER BY ' . implode(', ', $result); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getLastParts(): array |
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{ |
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return []; |
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} |
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} |
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ArekX /
PQL
