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<?php |
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namespace Trucker\Finders\Conditions; |
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use Guzzle\Http\Message\Request; |
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use Illuminate\Container\Container; |
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use Trucker\Facades\Config; |
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/** |
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* Class to manage query conditions for a request, where the |
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* query conditions are passed as HTTP GET array parameters which are |
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* nested within a particular parameter name (defined in the config). |
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* The resulting GET params might be something like:. |
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* |
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* <code> |
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* search[0][property]=someProperty |
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* search[0][operator]=< |
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* search[0][value]=1234 |
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* search[1][property]=anotherProperty |
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* search[1][operator]=LIKE |
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* search[1][value]=someString |
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* logical_operator=AND |
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* </code> |
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*/ |
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class GetArrayParamsQueryCondition implements QueryConditionInterface |
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{ |
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/** |
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* Constant to referr to array |
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* entries that contain a property |
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* or attribute to which a condition should |
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* be applied. |
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*/ |
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const PROPERTY = 'property'; |
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/** |
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* Constant to referr to array |
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* entries that contain the operator |
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* that a value should be matched against |
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* on a property. |
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*/ |
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const OPERATOR = 'operator'; |
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/** |
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* Constant to referr to array |
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* entries that contain a value that |
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* should be used in a conditional match |
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* against a property. |
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*/ |
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const VALUE = 'value'; |
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/** |
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* The IoC Container. |
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* |
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* @var Container |
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*/ |
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protected $app; |
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/** |
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* Collection of conditions, each condition |
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* will be a 3 key array having an entry for |
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* property, operator and value. |
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* |
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* @var array |
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*/ |
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protected $conditions = []; |
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/** |
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* The logical operator that should be used |
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* to group the conditions herein together. |
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* |
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* @var string |
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*/ |
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protected $logicalOperator; |
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/** |
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* Build a new GetArrayParamsQueryCondition. |
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* |
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* @param Container $app |
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*/ |
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public function __construct(Container $app) |
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{ |
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$this->app = $app; |
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} |
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/** |
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* Function to return a new popuplated instance, |
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* typically this would be called from the Facade. |
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* |
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* @return GetArrayParamsQueryCondition |
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*/ |
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public function newInstance() |
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{ |
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return new static($this->app); |
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} |
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/** |
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* Function to add a query condition. |
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* |
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* @param string $property The field the condition operates on |
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* @param string $operator The operator (=, <, >, <= and so on) |
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* @param string $value The value the condition should match |
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*/ |
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public function addCondition($property, $operator, $value) |
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{ |
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$this->conditions[] = [ |
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self::PROPERTY => $property, |
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self::OPERATOR => $operator, |
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self::VALUE => $value, |
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]; |
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} |
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/** |
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* Function to set the logical operator for the |
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* combination of any conditions that have been passed to the |
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* addCondition() function. |
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* |
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* @param string $operator |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function setLogicalOperator($operator) |
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{ |
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if ($operator != $this->getLogicalOperatorAnd() && |
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$operator != $this->getLogicalOperatorOr() |
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) { |
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throw new \InvalidArgumentException("Invalid logical operator: {$operator}"); |
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} |
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$this->logicalOperator = $operator; |
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} |
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/** |
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* Function to get the string representing |
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* the AND logical operator. |
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* |
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* @return string |
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*/ |
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public function getLogicalOperatorAnd() |
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{ |
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return Config::get('query_condition.get_array_params.and_operator'); |
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} |
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/** |
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* Function to get the string representing |
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* the OR logical operator. |
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* |
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* @return string |
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*/ |
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public function getLogicalOperatorOr() |
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{ |
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return Config::get('query_condition.get_array_params.or_operator'); |
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} |
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/** |
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* Function to add all the conditions that have been |
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* given to the class to a given request object. |
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* |
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* @param Request $request Request passed by reference |
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*/ |
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public function addToRequest(Request $request) |
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{ |
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$query = $request->getQuery(); |
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$conatiner = Config::get('query_condition.get_array_params.container_parameter'); |
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$property = Config::get('query_condition.get_array_params.property'); |
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$operator = Config::get('query_condition.get_array_params.operator'); |
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$value = Config::get('query_condition.get_array_params.value'); |
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$x = 0; |
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foreach ($this->conditions as $condition) { |
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$query->add( |
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"{$conatiner}[$x][{$property}]", |
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$condition[self::PROPERTY] |
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); |
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$query->add( |
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"{$conatiner}[$x][{$operator}]", |
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$condition[self::OPERATOR] |
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); |
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$query->add( |
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"{$conatiner}[$x][{$value}]", |
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$condition[self::VALUE] |
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); |
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++$x; |
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}//end foreach $findConditions |
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if (isset($this->logicalOperator)) { |
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$query->add( |
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Config::get('query_condition.get_array_params.logical_operator'), |
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$this->logicalOperator |
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); |
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} |
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} |
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/** |
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* Function to convert the conditions and |
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* logical operator represented in this class |
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* to an array, this is useful for testing. |
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* |
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* @return array |
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*/ |
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public function toArray() |
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{ |
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$conatiner = Config::get('query_condition.get_array_params.container_parameter'); |
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$property = Config::get('query_condition.get_array_params.property'); |
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$operator = Config::get('query_condition.get_array_params.operator'); |
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$value = Config::get('query_condition.get_array_params.value'); |
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$params = []; |
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$x = 0; |
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foreach ($this->conditions as $condition) { |
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$params["{$conatiner}[$x][{$property}]"] = $condition[self::PROPERTY]; |
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$params["{$conatiner}[$x][{$operator}]"] = $condition[self::OPERATOR]; |
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$params["{$conatiner}[$x][{$value}]"] = $condition[self::VALUE]; |
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++$x; |
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}//end foreach $findConditions |
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if (isset($this->logicalOperator)) { |
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$params[Config::get('query_condition.get_array_params.logical_operator')] = $this->logicalOperator; |
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} |
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return $params; |
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} |
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/** |
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* Function to convert the conditions and logical operator |
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* represented in this class to a querystring, this is useful |
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* for testing. |
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* |
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* @return string |
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*/ |
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public function toQueryString() |
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{ |
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return http_build_query($this->toArray()); |
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} |
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} |
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