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<?php |
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namespace Netdudes\DataSourceryBundle\Query; |
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use Netdudes\DataSourceryBundle\Util\AbstractArrayAccessibleCollection; |
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/** |
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* Group of filters bundled with a condition type |
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*/ |
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class Filter extends AbstractArrayAccessibleCollection implements \JsonSerializable |
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{ |
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/** |
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* The filters are concatenated AND-wise |
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*/ |
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const CONDITION_TYPE_AND = 'AND'; |
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/** |
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* The filters are concatenated OR-wise |
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*/ |
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const CONDITION_TYPE_OR = 'OR'; |
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/** |
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* The filters are concatenated XOR-wise |
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* Note: This is not currently supported by Doctrine, but left in for completeness |
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*/ |
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const CONDITION_TYPE_XOR = 'XOR'; |
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/** |
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* Condition concatenation type, by default OR |
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* |
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* @var int |
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*/ |
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private $conditionType = self::CONDITION_TYPE_AND; |
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/** |
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* Create a FilterDefinition from a deserialized compact exchange JSON filters. |
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* This wil recursively call itself to unpack the whole filter tree. |
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* |
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* @param $jsonSerializable |
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* |
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* @return array|Filter|FilterCondition |
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* @throws \Exception |
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* @deprecated Deprecated to be removed in 1.0.0. It seems to be unused. |
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*/ |
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public static function createFromJsonSerializable($jsonSerializable) |
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{ |
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@trigger_error('createFromJsonSerializable() is deprecated and will be removed in 1.0.0. It seems to be unused.', E_USER_DEPRECATED); |
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if (!count((array) $jsonSerializable)) { |
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// Edge case: empty filter |
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return new Filter(); |
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} |
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if (count($jsonSerializable) == 2 && is_array($jsonSerializable[1])) { |
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// Complex Filter |
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$logic = $jsonSerializable[0]; |
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$elements = $jsonSerializable[1]; |
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$filter = new Filter(); |
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$filter->setConditionType($logic); |
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foreach ($elements as $element) { |
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$filter[] = static::createFromJsonSerializable($element); |
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} |
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return $filter; |
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} elseif (count($jsonSerializable) == 3) { |
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// Simple element |
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return new FilterCondition($jsonSerializable[0], $jsonSerializable[1], $jsonSerializable[2], $jsonSerializable[2]); |
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} |
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throw new \Exception('Unable to parse JSON-serializable filter structure'); |
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} |
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public function toUQL() |
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{ |
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$parts = []; |
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foreach ($this as $filter) { |
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$subFilterUql = $filter->toUQL(); |
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if ($filter instanceof Filter) { |
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$subFilterUql = '(' . $subFilterUql . ')'; |
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} |
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$parts[] = $subFilterUql; |
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} |
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return implode(" " . strtolower($this->conditionType) . " ", $parts); |
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} |
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/** |
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* (PHP 5 >= 5.4.0)<br/> |
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* Specify data which should be serialized to JSON |
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* |
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* @link http://php.net/manual/en/jsonserializable.jsonserialize.php |
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* @return mixed data which can be serialized by <b>json_encode</b>, |
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* which is a value of any type other than a resource. |
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*/ |
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public function jsonSerialize() |
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{ |
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$serializableArray = [ |
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'logic' => $this->getConditionType(), |
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'elements' => [], |
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]; |
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foreach ($this as $filter) { |
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$serializableArray['elements'][] = $filter->toJsonSerializable(); |
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} |
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return $serializableArray; |
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} |
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/** |
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* Recursively compact into a easily JSON-serializable array |
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* representation |
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* @deprecated Deprecated to be removed in 1.0.0. It seems to be unused. |
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*/ |
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public function toJsonSerializable() |
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{ |
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@trigger_error('toJsonSerializable() is deprecated and will be removed in 1.0.0. It seems to be unused.', E_USER_DEPRECATED); |
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return $this->jsonSerialize(); |
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} |
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/** |
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* @return int |
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*/ |
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public function getConditionType() |
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{ |
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return $this->conditionType; |
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} |
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/** |
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* @param int $conditionType |
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*/ |
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public function setConditionType($conditionType) |
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{ |
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$this->conditionType = $conditionType; |
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} |
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public function getAllFirstLevelFilteredDataSourceUniqueNames() |
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{ |
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$filteredDataSourceIds = []; |
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foreach ($this as $element) { |
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if ($element instanceof FilterCondition) { |
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$filteredDataSourceIds[] = $element->getFieldName(); |
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} |
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} |
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return $filteredDataSourceIds; |
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} |
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/** |
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* Flatten the tree of Filters into a one-dimensional array |
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* or FilterConditions. |
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* |
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* @return FilterCondition[] |
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*/ |
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public function getAllFilterConditionsFlat() |
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{ |
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$flatConditionsList = []; |
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$flatten = function (Filter $filterDefinition) use (&$flatConditionsList, &$flatten) { |
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foreach ($filterDefinition as $filter) { |
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if ($filter instanceof Filter) { |
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$flatten($filter); |
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} elseif ($filter instanceof FilterCondition) { |
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$flatConditionsList[] = $filter; |
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} |
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} |
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}; |
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$flatten($this); |
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return $flatConditionsList; |
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} |
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} |
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If you suppress an error, we recommend checking for the error condition explicitly: