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<?php |
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declare(strict_types=1); |
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namespace Level23\Druid\Filters; |
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use Level23\Druid\Types\DataType; |
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/** |
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* Class BetweenFilter |
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* |
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* This filter will create a filter where the given dimension is greater than or equal to the given minValue, and |
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* less than or equal to the given $maxValue. |
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* |
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* So in SQL syntax, this would be: |
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* ``` |
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* WHERE dimension => $minValue AND dimension <= $maxValue |
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* ``` |
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* |
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* @package Level23\Druid\Filters |
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*/ |
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class BetweenFilter implements FilterInterface |
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{ |
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protected string $column; |
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protected int|string|float $minValue; |
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protected int|string|float $maxValue; |
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protected DataType $valueType; |
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/** |
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* BetweenFilter constructor. |
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* |
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* @param string $column The dimension to filter on |
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* @param int|string|float $minValue |
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* @param int|string|float $maxValue |
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* @param DataType|null $valueType String specifying the type of bounds to match. The valueType determines how |
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* Druid interprets the matchValue to assist in converting to the type of the |
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* matched column and also defines the type of comparison used when matching |
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* values. |
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*/ |
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public function __construct( |
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string $column, |
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int|float|string $minValue, |
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int|float|string $maxValue, |
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?DataType $valueType = null |
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) { |
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if (is_null($valueType)) { |
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if (is_int($minValue)) { |
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$valueType = DataType::LONG; |
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} elseif (is_float($minValue)) { |
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$valueType = DataType::DOUBLE; |
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} else { |
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$valueType = DataType::STRING; |
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} |
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} |
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$this->column = $column; |
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$this->valueType = $valueType; |
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$this->minValue = $minValue; |
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$this->maxValue = $maxValue; |
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} |
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/** |
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* Return the filter as it can be used in the druid query. |
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* |
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* @return array<string,string|bool|float> |
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*/ |
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public function toArray(): array |
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{ |
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return [ |
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'type' => 'range', |
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'column' => $this->column, |
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'matchValueType' => $this->valueType->value, |
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'lower' => $this->minValue, |
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'lowerOpen' => false, // >= |
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'upper' => $this->maxValue, |
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'upperOpen' => true, // < |
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]; |
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} |
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} |
level23 /
druid-client
