| 1 |
<?php // phpcs:ignore |
| 2 |
|
| 3 |
/** |
| 4 |
* Condition Utility |
| 5 |
* |
| 6 |
* @package Disco |
| 7 |
* @subpackage App\Utility |
| 8 |
* @since 1.0.0 |
| 9 |
* @category Utility |
| 10 |
*/ |
| 11 |
|
| 12 |
namespace Disco\App\Utility; |
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|
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use Disco\App\Attributes\AttributeFactory; |
| 15 |
|
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/** |
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* Class Filter |
| 18 |
* |
| 19 |
* @package Disco |
| 20 |
* @subpackage App\Utility |
| 21 |
* @author Ohidul Islam <[email protected]> |
| 22 |
* @link https://webappick.com |
| 23 |
* @license https://opensource.org/licenses/gpl-license.php GNU Public License |
| 24 |
* @category Utility |
| 25 |
*/ |
| 26 |
class Conditions { // phpcs:ignore |
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|
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/** |
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* @var array $product Product Info. |
| 30 |
*/ |
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private $product; |
| 32 |
|
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/** |
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* Contains the conditions array. |
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* |
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* @var array $conditions Filter object. |
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*/ |
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private $conditions; |
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|
| 40 |
/** |
| 41 |
* Conditions constructor. |
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* |
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* @param \Disco\App\Utility\Config $config Campaign configuration. |
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* @param array $product Product Object. |
| 45 |
*/ |
| 46 |
public function __construct( $config, $product ) { |
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$this->conditions = $config->get_conditions(); |
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$this->product = $product; |
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} |
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|
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/** |
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* Check if the product is passed the filter |
| 53 |
* |
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* @return bool |
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*/ |
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public function is_passed() { |
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if ( ! empty( $this->conditions ) ) { |
| 58 |
return $this->check_all_conditions( $this->conditions ); |
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} |
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|
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return true; |
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} |
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|
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/** |
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* Check if the product is passed the filter |
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* |
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* @param array $filters Filter array. |
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* array( |
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* array( |
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* 'base_operator' => 'and', |
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* 'base_filters' => array( |
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* 0 => array( |
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* 'filter' => 'id', |
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* 'operator' => 'and', |
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* 'condition' => 'between', |
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* 'compare' => array( 1, 100 ), |
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* ), |
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* 1 => array( |
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* 'filter' => 'Hat Wizard', |
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* 'operator' => 'and', |
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* 'condition' => 'contain', |
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* 'compare' => 'Hat', |
| 83 |
* ), |
| 84 |
* ), |
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* ), |
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* array( |
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* 'base_operator' => 'or', |
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* 'base_filters' => array( |
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* 0 => array( |
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* 'filter' => 'total_sold', |
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* 'operator' => 'and', |
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* 'condition' => 'greater_tan', |
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* 'compare' => 2000, |
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* ), |
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* 1 => array( |
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* 'filter' => 'total_order_name', |
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* 'operator' => 'or', |
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* 'condition' => 'equal', |
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* 'compare' => '100', |
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* ), |
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* ), |
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* array( |
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* 'base_operator' => 'and', |
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* 'base_filters' => array( |
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* 0 => array( |
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* 'filter' => 'total_sold', |
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* 'operator' => 'and', |
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* 'condition' => 'greater_tan', |
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* 'compare' => 2000, |
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* ), |
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* 2 => array( |
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* 'filter' => 'title', |
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* 'operator' => 'and', |
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* 'condition' => 'not_equal', |
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* 'compare' => '', |
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* ), |
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* ), |
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* ), |
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* ),. |
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* @return bool |
| 121 |
*/ |
| 122 |
public function check_group_conditions( $filters ) {// phpcs:ignore |
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|
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$result = true; |
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// Start with true, will be updated based on conditions |
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$first = true; |
| 127 |
|
| 128 |
foreach ( $filters as $filter ) { |
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if ( is_array( $filter ) ) { |
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$filter = (object) $filter; |
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} |
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|
| 133 |
if ( strtolower( $filter->operator ) ) { |
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$operator = strtolower( $filter->operator ); |
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} else { |
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$operator = 'and'; |
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} |
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|
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$condition = $this->compare_value( $filter ); |
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|
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// Apply the operator |
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if ( $first ) { |
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$result = $condition; |
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$first = false; |
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} elseif ( $operator === 'and' ) { |
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$result = $result && $condition;// phpcs:ignore |
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} elseif ( $operator === 'or' ) { |
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$result = $result || $condition;// phpcs:ignore |
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} |
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}//end foreach |
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|
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return $result; |
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} |
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|
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/** |
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* Compare value based on a type |
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* |
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* @param object $filter Filter object. |
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* @return bool |
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*/ |
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public function compare_value( $filter ) { |
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if ( ! is_object( $filter ) || ! isset( $filter->condition, $filter->compare, $filter->compare_with ) ) { |
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return false; |
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} |
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|
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/** |
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* Special case for item_quantity and item_count |
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* If the compare_with is item_quantity or item_count, |
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* we need to get the matched products from the cart |
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* and then compare the quantity or count of those products. |
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* This is because item_quantity and item_count are not product attributes, |
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*/ |
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if ( in_array( $filter->compare_with, array( 'item_quantity', 'item_count' ), true ) ) { |
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$matched_products = Helper::get_matched_conditions_cart_products( $this->conditions, $this->product ); |
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|
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$info = array( |
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'matched_products' => $matched_products, |
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); |
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|
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return $this->compare_special_case( $filter, $info ); |
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} |
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|
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$type = $this->get_type( $filter->compare, $filter->condition ); |
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|
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switch ( $type ) { |
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case 'date': |
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return $this->date_compare( $filter ); |
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|
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case 'array': |
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return $this->array_compare( $filter ); |
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|
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case 'integer': |
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case 'double': |
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return $this->number_compare( $filter ); |
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|
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default: |
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return $this->string_compare( $filter ); |
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} |
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} |
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|
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/** |
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* Get the type of the compare value |
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* |
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* @param mixed $compare Compare value. |
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* @param string $condition Condition. |
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* @return string |
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*/ |
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public function get_type( $compare, $condition ) { // phpcs:ignore |
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// Get $compare variable value type |
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$type = 'string'; |
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|
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// If $compare is a number, check if it is an integer or double |
| 213 |
if ( is_numeric( $compare ) ) { |
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$type = 'integer'; |
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} |
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|
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// If $compare is a date, check if it is a valid date |
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if ( !is_numeric( $compare ) && is_string( $compare ) && strtotime( $compare ) ) { |
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$type = 'date'; |
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} |
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|
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// If $condition is an array, check if it is an array of strings |
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if ( in_array( $condition, array( 'in_list', 'not_in_list' ), true ) ) { |
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$type = 'array'; |
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} |
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|
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// If $compare is an array, check if it is a number range. Only for between condition. |
| 228 |
if ( $condition === 'between' && is_array( $compare ) && count( $compare ) === 2 ) { |
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$type = 'integer'; |
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} |
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|
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// If $compare is an array, check if it is a date range. Only for date between condition. |
| 233 |
if ( $condition === 'date_between' |
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&& is_array( $compare ) |
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&& count( $compare ) === 2 |
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&& strtotime( $compare[0] ) |
| 237 |
&& strtotime( $compare[1] ) |
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) { |
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$type = 'date'; |
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} |
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|
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if ( is_bool( $compare ) ) { |
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$type = 'boolean'; |
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} |
| 245 |
|
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return $type; |
| 247 |
} |
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|
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/** |
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* Compare value for a date type. |
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* |
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* @param object $filter Filter object. |
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* @return bool |
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*/ |
| 255 |
public function date_compare( $filter ) { |
| 256 |
if ( ! is_object( $filter ) || ! isset( $filter->condition, $filter->compare, $filter->compare_with ) ) { |
| 257 |
return false; |
| 258 |
} |
| 259 |
|
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$condition = $filter->condition; |
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$compare = $filter->compare; |
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$compare_with = AttributeFactory::get_value( $filter->compare_with, $this->product ); |
| 263 |
|
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switch ( $condition ) { |
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case 'equal': |
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return $compare === $compare_with; |
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|
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case 'not_equal': |
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return $compare !== $compare_with; |
| 270 |
|
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case 'greater': |
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return $compare_with > $compare; |
| 273 |
|
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case 'greater_equal': |
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return $compare_with >= $compare; |
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|
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case 'lesser': |
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return $compare_with < $compare; |
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|
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case 'lesser_equal': |
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return $compare_with <= $compare; |
| 282 |
|
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case 'date_between': |
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return $compare_with >= $compare[0] && $compare_with <= $compare[1]; |
| 285 |
|
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default: |
| 287 |
return false; |
| 288 |
}//end switch |
| 289 |
} |
| 290 |
|
| 291 |
/** |
| 292 |
* Compare value for an array type. |
| 293 |
* |
| 294 |
* @param object $filter Filter object. |
| 295 |
* @return bool |
| 296 |
*/ |
| 297 |
public function array_compare( $filter ) {// phpcs:ignore |
| 298 |
if ( ! is_object( $filter ) || ! isset( $filter->condition, $filter->compare, $filter->compare_with ) ) { |
| 299 |
return false; |
| 300 |
} |
| 301 |
|
| 302 |
$condition = $filter->condition; |
| 303 |
$compare = $filter->compare; |
| 304 |
|
| 305 |
// Is compare_with needs to be compared with id or name |
| 306 |
$column = $this->get_array_compare_column( $filter->compare_with ); |
| 307 |
|
| 308 |
if ( isset( $compare[0] ) && is_object( $compare[0] ) ) { |
| 309 |
$compare = array_column( (array) $compare, $column ); |
| 310 |
} elseif ( isset( $compare[0] ) && is_array( $compare[0] ) ) { |
| 311 |
$compare = array_column( $compare, $column ); |
| 312 |
} |
| 313 |
|
| 314 |
$compare_with = AttributeFactory::get_value( $filter->compare_with, $this->product ); |
| 315 |
|
| 316 |
if ( is_array( $compare ) ) { |
| 317 |
$compare = array_map( 'trim', $compare ); // Trim all values in the array |
| 318 |
} |
| 319 |
|
| 320 |
if ( is_array( $compare_with ) ) { |
| 321 |
$compare_with = array_map( 'trim', $compare_with ); // Trim all values in the array |
| 322 |
} |
| 323 |
|
| 324 |
switch ( $condition ) { |
| 325 |
case 'not_in_list': |
| 326 |
if ( is_array( $compare ) && is_array( $compare_with ) ) { |
| 327 |
// Check if there are no common elements between the two arrays |
| 328 |
return !count( array_intersect( $compare, $compare_with ) ); |
| 329 |
} |
| 330 |
|
| 331 |
if ( is_array( $compare_with ) ) { |
| 332 |
// Check if a scalar $compare is not in the array $compare_with |
| 333 |
return !in_array( $compare, $compare_with, true ); |
| 334 |
} |
| 335 |
|
| 336 |
if ( is_array( $compare ) && is_string( $compare_with ) ) { |
| 337 |
// Check if a string $compare_with is not in the array $compare |
| 338 |
return !in_array( $compare_with, $compare, true ); |
| 339 |
} |
| 340 |
|
| 341 |
// A single stored value against a single option: without this both |
| 342 |
// list conditions fell through and returned false either way. |
| 343 |
if ( is_string( $compare ) && is_string( $compare_with ) ) { |
| 344 |
return $compare !== $compare_with; |
| 345 |
} |
| 346 |
|
| 347 |
return false; |
| 348 |
|
| 349 |
case 'in_list': |
| 350 |
// return $compare; |
| 351 |
// Ensure $compare[0] is an array before calling array_intersect |
| 352 |
if ( is_array( $compare ) && is_array( $compare_with ) ) { |
| 353 |
// Extract IDs from $compare if $compare_with is an array of IDs |
| 354 |
return (bool) count( array_intersect( $compare, $compare_with ) ); |
| 355 |
} |
| 356 |
|
| 357 |
if ( is_array( $compare_with ) && is_string( $compare ) ) { |
| 358 |
// Check if a scalar $compare is in the array $compare_with |
| 359 |
return in_array( $compare, $compare_with, true ); |
| 360 |
} |
| 361 |
|
| 362 |
if ( is_array( $compare ) && is_string( $compare_with ) ) { |
| 363 |
// Check if a string $compare_with is in the array $compare |
| 364 |
return in_array( $compare_with, $compare, true ); |
| 365 |
} |
| 366 |
|
| 367 |
// A single stored value against a single option. |
| 368 |
if ( is_string( $compare ) && is_string( $compare_with ) ) { |
| 369 |
return $compare === $compare_with; |
| 370 |
} |
| 371 |
|
| 372 |
return false; |
| 373 |
|
| 374 |
default: |
| 375 |
return false; |
| 376 |
} |
| 377 |
} |
| 378 |
|
| 379 |
/** |
| 380 |
* Compare value for a number type. |
| 381 |
* |
| 382 |
* @param object $filter Filter object. |
| 383 |
* @return bool |
| 384 |
*/ |
| 385 |
public function number_compare( $filter ) {// phpcs:ignore |
| 386 |
if ( ! is_object( $filter ) || ! isset( $filter->condition, $filter->compare, $filter->compare_with ) ) { |
| 387 |
return false; |
| 388 |
} |
| 389 |
|
| 390 |
$condition = $filter->condition; |
| 391 |
$compare = is_array( $filter->compare ) ? array_map( |
| 392 |
static function( $val ) { |
| 393 |
return (float) $val; |
| 394 |
}, |
| 395 |
$filter->compare |
| 396 |
) : (float) $filter->compare; |
| 397 |
$compare_with = (float) AttributeFactory::get_value( $filter->compare_with, $this->product ); |
| 398 |
|
| 399 |
switch ( $condition ) { |
| 400 |
case 'equal': |
| 401 |
return $compare === $compare_with; |
| 402 |
|
| 403 |
case 'not_equal': |
| 404 |
return $compare !== $compare_with; |
| 405 |
|
| 406 |
case 'greater': |
| 407 |
return $compare_with > $compare; |
| 408 |
|
| 409 |
case 'greater_equal': |
| 410 |
return $compare_with >= $compare; |
| 411 |
|
| 412 |
case 'lesser': |
| 413 |
return $compare_with < $compare; |
| 414 |
|
| 415 |
case 'lesser_equal': |
| 416 |
return $compare_with <= $compare; |
| 417 |
|
| 418 |
case 'between': |
| 419 |
// @phpstan-ignore-next-line |
| 420 |
return $compare_with >= $compare[0] && $compare_with <= $compare[1]; |
| 421 |
|
| 422 |
default: |
| 423 |
return false; |
| 424 |
}//end switch |
| 425 |
} |
| 426 |
|
| 427 |
/** |
| 428 |
* Compare value for a string type. |
| 429 |
* |
| 430 |
* @param object $filter Filter object. |
| 431 |
* @return bool |
| 432 |
*/ |
| 433 |
public function string_compare( $filter ) { |
| 434 |
if ( ! is_object( $filter ) || ! isset( $filter->condition, $filter->compare, $filter->compare_with ) ) { |
| 435 |
return false; |
| 436 |
} |
| 437 |
|
| 438 |
$condition = $filter->condition; |
| 439 |
$compare = $filter->compare; |
| 440 |
$compare_with = AttributeFactory::get_value( $filter->compare_with, $this->product ); |
| 441 |
|
| 442 |
if ( is_array( $compare ) ) { |
| 443 |
$compare = wp_json_encode( $compare ); |
| 444 |
} |
| 445 |
|
| 446 |
if ( !is_string( $compare ) ) { |
| 447 |
$compare = (string) $compare; |
| 448 |
} |
| 449 |
|
| 450 |
/** |
| 451 |
* A field can hold more than one value. |
| 452 |
* |
| 453 |
* An ACF checkbox group, or any multi select, stores an array. Which |
| 454 |
* comparison runs is decided by {@see self::get_type()} from the value |
| 455 |
* the merchant typed and the condition, never from what the product |
| 456 |
* side holds, so a plain "contains red" rule arrives here even when the |
| 457 |
* stored value is an array. Handing that array to stripos(), strtolower() |
| 458 |
* or substr() is fatal on PHP 8. |
| 459 |
* |
| 460 |
* Each stored value is compared in turn: a positive condition passes |
| 461 |
* when any of them matches, a negative one only when none do. |
| 462 |
*/ |
| 463 |
$matched = false; |
| 464 |
|
| 465 |
foreach ( $this->comparable_values( $compare_with ) as $haystack ) { |
| 466 |
if ( $this->matches_string_condition( $haystack, $compare, $condition ) ) { |
| 467 |
$matched = true; |
| 468 |
|
| 469 |
break; |
| 470 |
} |
| 471 |
} |
| 472 |
|
| 473 |
if ( in_array( $condition, array( 'not_equal', 'not_contain' ), true ) ) { |
| 474 |
return ! $matched; |
| 475 |
} |
| 476 |
|
| 477 |
return $matched; |
| 478 |
} |
| 479 |
|
| 480 |
/** |
| 481 |
* @param array $filters Filter array. |
| 482 |
* @return bool |
| 483 |
*/ |
| 484 |
public function check_all_conditions( $filters ) { |
| 485 |
$final_result = true; |
| 486 |
$first_group = true; |
| 487 |
|
| 488 |
if ( empty( $filters ) ) { |
| 489 |
return true; |
| 490 |
} |
| 491 |
|
| 492 |
foreach ( $filters as $group ) { |
| 493 |
if ( is_array( $group ) ) { |
| 494 |
$group = (object) $group; |
| 495 |
} |
| 496 |
|
| 497 |
$group_result = $this->check_group_conditions( $group->base_filters ); |
| 498 |
|
| 499 |
if ( $first_group ) { |
| 500 |
$final_result = $group_result; |
| 501 |
$first_group = false; |
| 502 |
} elseif ( $group->base_operator === 'and' ) { |
| 503 |
$final_result = $final_result && $group_result; // phpcs:ignore |
| 504 |
} elseif ( $group->base_operator === 'or' ) { |
| 505 |
$final_result = $final_result || $group_result; // phpcs:ignore |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
return $final_result; |
| 510 |
} |
| 511 |
|
| 512 |
/** |
| 513 |
* Get the column for array compare |
| 514 |
* Sometime we need to get the column id for array compare. |
| 515 |
* For example, we need to compare the product id with the array of product ids |
| 516 |
* |
| 517 |
* @param string $compare_with Compare with value. |
| 518 |
* @return string |
| 519 |
*/ |
| 520 |
public function get_array_compare_column( $compare_with ) { |
| 521 |
$attributes_by_ids = array( |
| 522 |
'attributes', // Product Attributes |
| 523 |
'customer_country', // Customer Country |
| 524 |
'customer_state', // Customer State |
| 525 |
'products_in_cart', // Products in Cart |
| 526 |
'customer_history_total_order_made_by_ids', // Number of Orders Made with the Following Products |
| 527 |
'customer_history_total_amount_sold_by_ids', // Total Amount Sold with the Following Products |
| 528 |
'customer_history_total_quantity_sold_by_ids', // Number of Orders Made with the Following Products |
| 529 |
); |
| 530 |
|
| 531 |
if ( in_array( $compare_with, $attributes_by_ids, true ) ) { |
| 532 |
return 'id'; |
| 533 |
} |
| 534 |
|
| 535 |
/** |
| 536 |
* ACF stores the choice value, while the option's name is its label, so |
| 537 |
* matching on the name would compare "Red" against a stored "red". |
| 538 |
*/ |
| 539 |
if ( is_string( $compare_with ) && strpos( $compare_with, 'acf_fields_' ) === 0 ) { |
| 540 |
return 'id'; |
| 541 |
} |
| 542 |
|
| 543 |
return 'name'; |
| 544 |
} |
| 545 |
|
| 546 |
/** |
| 547 |
* Compare special cases for product filters, such as item quantity or item count. |
| 548 |
* |
| 549 |
* This function evaluates a filter condition (e.g., equal, greater, between) against either the total quantity |
| 550 |
* of matched products (when comparing with 'item_quantity') or the count of matched products (when comparing with 'item_count'). |
| 551 |
* |
| 552 |
* @param object $filter Filter object containing 'compare_with', 'condition', and 'compare' properties. |
| 553 |
* @param array $info Array containing 'matched_products' (list of product data arrays). |
| 554 |
* @return bool True if the condition is met, false otherwise. |
| 555 |
*/ |
| 556 |
public static function compare_special_case( $filter, $info ) { // phpcs:ignore |
| 557 |
$matched_products = $info['matched_products'] ?? array(); |
| 558 |
|
| 559 |
if ( |
| 560 |
! is_object( $filter ) || |
| 561 |
! property_exists( $filter, 'compare_with' ) || |
| 562 |
! property_exists( $filter, 'compare' ) || |
| 563 |
! property_exists( $filter, 'condition' ) |
| 564 |
) { |
| 565 |
return false; |
| 566 |
} |
| 567 |
|
| 568 |
if ( $filter->compare_with === 'item_quantity' ) { |
| 569 |
$total_quantity = array_sum( |
| 570 |
array_map( |
| 571 |
function( $item ) { |
| 572 |
if ( isset( $item['quantity'] ) ) { |
| 573 |
return $item['quantity']; |
| 574 |
} |
| 575 |
|
| 576 |
return 0; |
| 577 |
}, |
| 578 |
$matched_products |
| 579 |
) |
| 580 |
); |
| 581 |
|
| 582 |
$compare_value = $total_quantity; |
| 583 |
} elseif ( $filter->compare_with === 'item_count' ) { |
| 584 |
$compare_value = count( $matched_products ); |
| 585 |
} else { |
| 586 |
return false; |
| 587 |
} |
| 588 |
|
| 589 |
$condition = $filter->condition; |
| 590 |
|
| 591 |
if ( is_array( $filter->compare ) ) { |
| 592 |
$target = (int) $filter->compare[0]; |
| 593 |
} else { |
| 594 |
$target = (int) $filter->compare; |
| 595 |
} |
| 596 |
|
| 597 |
switch ( $condition ) { |
| 598 |
case 'equal': |
| 599 |
return $compare_value === $target; |
| 600 |
|
| 601 |
case 'not_equal': |
| 602 |
return $compare_value !== $target; |
| 603 |
|
| 604 |
case 'greater': |
| 605 |
return $compare_value > $target; |
| 606 |
|
| 607 |
case 'greater_equal': |
| 608 |
return $compare_value >= $target; |
| 609 |
|
| 610 |
case 'lesser': |
| 611 |
return $compare_value < $target; |
| 612 |
|
| 613 |
case 'lesser_equal': |
| 614 |
return $compare_value <= $target; |
| 615 |
|
| 616 |
case 'between': |
| 617 |
if ( is_array( $filter->compare ) && count( $filter->compare ) === 2 ) { |
| 618 |
return $compare_value >= $filter->compare[0] && $compare_value <= $filter->compare[1]; |
| 619 |
} |
| 620 |
|
| 621 |
return false; |
| 622 |
|
| 623 |
default: |
| 624 |
return false; |
| 625 |
} |
| 626 |
} |
| 627 |
|
| 628 |
/** |
| 629 |
* Run one string condition against a single stored value. |
| 630 |
* |
| 631 |
* The negative conditions share the comparison of their positive |
| 632 |
* counterpart; {@see self::string_compare()} inverts the result once every |
| 633 |
* stored value has been checked. |
| 634 |
* |
| 635 |
* @param string $haystack One stored value. |
| 636 |
* @param string $compare Value the merchant typed. |
| 637 |
* @param string $condition Condition name. |
| 638 |
*/ |
| 639 |
private function matches_string_condition( string $haystack, string $compare, string $condition ): bool { |
| 640 |
switch ( $condition ) { |
| 641 |
case 'equal': |
| 642 |
case 'not_equal': |
| 643 |
return strtolower( $haystack ) === strtolower( $compare ); |
| 644 |
|
| 645 |
case 'contain': |
| 646 |
case 'not_contain': |
| 647 |
return stripos( $haystack, $compare ) !== false; |
| 648 |
|
| 649 |
case 'start_with': |
| 650 |
return stripos( $haystack, $compare ) === 0; |
| 651 |
|
| 652 |
case 'end_with': |
| 653 |
return substr( $haystack, -strlen( $compare ) ) === $compare; |
| 654 |
|
| 655 |
default: |
| 656 |
return false; |
| 657 |
}//end switch |
| 658 |
} |
| 659 |
|
| 660 |
/** |
| 661 |
* Flatten an attribute value into the strings a comparison can run against. |
| 662 |
* |
| 663 |
* A single value yields one string, a multi value field one per entry. |
| 664 |
* Anything that cannot be expressed as text, a nested array or an object, |
| 665 |
* is dropped. An empty result still yields one empty string, so a negative |
| 666 |
* condition has something to fail against rather than passing by default. |
| 667 |
* |
| 668 |
* @param mixed $value Attribute value. |
| 669 |
* @return array<int, string> |
| 670 |
*/ |
| 671 |
private function comparable_values( $value ): array { |
| 672 |
$values = array( $value ); |
| 673 |
|
| 674 |
if ( is_array( $value ) ) { |
| 675 |
$values = $value; |
| 676 |
} |
| 677 |
|
| 678 |
$result = array(); |
| 679 |
|
| 680 |
foreach ( $values as $entry ) { |
| 681 |
if ( null === $entry ) { |
| 682 |
$result[] = ''; |
| 683 |
|
| 684 |
continue; |
| 685 |
} |
| 686 |
|
| 687 |
if ( ! is_scalar( $entry ) ) { |
| 688 |
continue; |
| 689 |
} |
| 690 |
|
| 691 |
$result[] = (string) $entry; |
| 692 |
} |
| 693 |
|
| 694 |
if ( empty( $result ) ) { |
| 695 |
return array( '' ); |
| 696 |
} |
| 697 |
|
| 698 |
return $result; |
| 699 |
} |
| 700 |
|
| 701 |
} |
| 702 |
|
