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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\MySql\Builder\Builders\Traits; |
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use ArekX\PQL\Contracts\StructuredQuery; |
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use ArekX\PQL\Drivers\MySql\Builder\MySqlQueryBuilderState; |
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trait ConditionTrait |
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{ |
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use SubQueryTrait; |
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use QuoteNameTrait; |
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protected function buildCondition($condition, MySqlQueryBuilderState $state) |
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{ |
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static $map = null; |
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if ($map === null) { |
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$map = [ |
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'all' => fn($condition, $state) => $this->buildAssociativeCondition(' AND ', $condition, $state), |
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'any' => fn($condition, $state) => $this->buildAssociativeCondition(' OR ', $condition, $state), |
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'and' => fn($condition, $state) => $this->buildConjuctionCondition(' AND ', $condition, $state), |
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'or' => fn($condition, $state) => $this->buildConjuctionCondition(' OR ', $condition, $state), |
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'not' => fn($condition, $state) => $this->buildNotCondition($condition, $state), |
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'in' => fn($condition, $state) => $this->buildInCondition($condition, $state), |
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'between' => fn($condition, $state) => $this->buildBetweenCondition($condition, $state), |
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'like' => fn($condition, $state) => $this->buildLikeCondition($condition, $state), |
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'column' => fn($condition) => $this->buildColumnCondition($condition), |
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'value' => fn($condition, $state) => $this->buildValueCondition($condition, $state), |
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]; |
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} |
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if ($condition instanceof StructuredQuery) { |
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return $this->buildSubQuery($condition, $state); |
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} |
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if (is_array($condition)) { |
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if (empty($map[$condition[0]])) { |
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throw new \Exception('Unknown condition: ' . var_export($condition[0], true)); |
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} |
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return $map[$condition[0]]($condition, $state); |
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} |
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throw new \Exception('Condition must be an array.'); |
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} |
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protected function buildAssociativeCondition($glue, $condition, MySqlQueryBuilderState $state) |
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{ |
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$result = []; |
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foreach ($condition[1] as $key => $value) { |
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$leftSide = $this->quoteName($key); |
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if ($value instanceof StructuredQuery) { |
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$result[] = $leftSide . ' IN ' . $this->buildSubQuery($value, $state); |
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continue; |
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} |
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if (is_array($value)) { |
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$result[] = $leftSide . ' IN (' . $this->buildWrapValue($value, $state) . ')'; |
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continue; |
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} |
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$result[] = $leftSide . ' = ' . $this->buildWrapValue($value, $state); |
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} |
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return implode($glue, $result); |
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} |
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protected function buildWrapValue($value, MySqlQueryBuilderState $state, $type = null) |
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{ |
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$builder = $state->getParamsBuilder(); |
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if (is_array($value)) { |
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$results = []; |
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foreach ($value as $item) { |
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$results[] = $builder->wrapValue($item, $type); |
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} |
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return implode(', ', $results); |
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} |
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return $builder->wrapValue($value, $type); |
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} |
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protected function buildConjuctionCondition(string $glue, $condition, MySqlQueryBuilderState $state) |
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{ |
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$result = []; |
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$max = count($condition); |
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for ($i = 1; $i < $max; $i++) { |
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$result[] = '(' . $this->buildCondition($condition[$i], $state) . ')'; |
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} |
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return implode($glue, $result); |
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} |
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protected function buildColumnCondition($condition) |
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{ |
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$column = $condition[1] ?? null; |
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if (empty($column)) { |
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throw new \Exception('Column name must be set.'); |
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} else if (!is_string($column)) { |
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throw new \Exception('Column name must be a string.'); |
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} |
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return $this->quoteName($column); |
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} |
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protected function buildValueCondition($condition, MySqlQueryBuilderState $state) |
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{ |
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return $this->buildWrapValue( |
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$condition[1] ?? null, |
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$state, |
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$condition[2] ?? null |
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); |
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} |
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protected function buildNotCondition($condition, MySqlQueryBuilderState $state) |
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{ |
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if ($condition[1] instanceof StructuredQuery) { |
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return 'NOT ' . $this->buildSubQuery($condition[1], $state); |
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} |
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return 'NOT (' . $this->buildCondition($condition[1], $state) . ')'; |
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} |
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protected function buildBetweenCondition($condition, MySqlQueryBuilderState $state) |
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{ |
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$of = $this->buildCondition($condition[1] ?? null, $state); |
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$from = $this->buildCondition($condition[2] ?? null, $state); |
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$to = $this->buildCondition($condition[3] ?? null, $state); |
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return $of . ' BETWEEN ' . $from . ' AND ' . $to; |
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} |
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protected function buildInCondition($condition, MySqlQueryBuilderState $state) |
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{ |
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$left = $this->buildCondition($condition[1] ?? null, $state); |
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$right = $condition[2] ?? null; |
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if ($right instanceof StructuredQuery) { |
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return $left . ' IN ' . $this->buildSubQuery($right, $state); |
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} |
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return $left . ' IN (' . $this->buildCondition($right, $state) . ')'; |
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} |
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protected function buildLikeCondition($condition, MySqlQueryBuilderState $state) |
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{ |
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$left = $this->buildCondition($condition[1] ?? null, $state); |
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$right = $this->buildCondition($condition[2] ?? null, $state); |
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return $left . ' LIKE ' . $right; |
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} |
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} |
ArekX /
PQL
