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Editing: unitecreator_ajax_search.class.php

<?php 
/**
 * @package Unlimited Elements
 * @author unlimited-elements.com
 * @copyright (C) 2021 Unlimited Elements, All Rights Reserved.
 * @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
 * */
if ( ! defined( 'ABSPATH' ) ) exit;

class UniteCreatorAjaxSeach{
	
	public static $arrCurrentParams;
	public static $customSearchEnabled = false;
	public static $enableThirdPartyHooks = false;

private $searchInMeta = false;
	private $searchInTerms = false;
	private $strTerms = false;
	private $searchPostFields = array();
	private $searchMetaKey = "";

/**
	 * set post parts where clause
	 */
	public function setWherePostParts($where, $wp_query){
		
		if (in_array('all', $this->searchPostFields))
			return ($where);

if(empty($this->searchPostFields))
			return($where);
		
		//set fields to delete
		$arrDelete = array("post_title"=>true,"post_excerpt"=>true,"post_content"=>true);

foreach($this->searchPostFields as $field){
			
			unset($arrDelete[$field]);
		}
		
		//AI Help :)
		
		// Remove fields specified in $arrDelete
		
	 foreach ($arrDelete as $field => $remove) {
	 if ($remove) {
	 // Pattern to match the specific condition
	 $pattern = "/$wp_posts\.$field LIKE '[^']*'$\s*(OR\s*)?/";
	 $where = preg_replace($pattern, '', $where);
	 }
	 }
	
	 // Clean up unnecessary OR and extra spaces left after removal
	 $where = preg_replace('/\s+OR\s+\)/', ')', $where);
	 $where = preg_replace('/\(\s+OR\s+/', '(', $where);
	
	 $where = trim($where);		
		
		if(GlobalsProviderUC::$showPostsQueryDebug == true){
			
			dmp("Mat the search for those fields: ");
			dmp($this->searchPostFields);
			
			dmp($where);
		}
	 
		remove_filter( 'posts_where', array($this,'setWherePostParts'), 10, 2 );
		
		return($where);
	}
	
	/**
	 * on posts response
	 */
	public function onPostsResponse($arrPosts, $value, $filters){
		
		if(GlobalsProviderUC::$isUnderAjaxSearch == false)
			return($arrPosts);
					
		$name = UniteFunctionsUC::getVal($value, "uc_posts_name");
		
		$args = GlobalsProviderUC::$lastQueryArgs;
		
		$maxItems = UniteFunctionsUC::getVal($args, "posts_per_page", 9);
		
		$numPosts = count($arrPosts);
		
		//if maximum reached - return the original
		
		$addCount = $maxItems - count($arrPosts);
		
		if($addCount <= $maxItems){
						
			if(GlobalsProviderUC::$showPostsQueryDebug == true && $addCount <= 0){
				dmp("Max posts reach");
			}
			
		}
		
		//search in meta
		if($this->searchInMeta == true && $addCount > 0){
			
			$arrPosts = $this->getPostsByMeta($arrPosts, $args, $addCount);
			$addCount = $maxItems - count($arrPosts);
			
			if(GlobalsProviderUC::$showPostsQueryDebug == true && $addCount <= 0){
				dmp("Max posts reach");
			}
			
		}
		
		//search in taxonomy
		if($this->searchInTerms == true && $addCount > 0){
			
			$arrPosts = $this->getPostsByTerms($arrPosts, $args, $addCount);
			
			$addCount = $maxItems - count($arrPosts);
			
			if(GlobalsProviderUC::$showPostsQueryDebug == true && $addCount <= 0){
				dmp("Max posts reach");
			}
			
		}
		
		if (GlobalsProviderUC::$showPostsQueryDebug == true ) {
			
			//print total posts
			
			$totalPosts = count($arrPosts);
			
			dmp("Total Posts: {$totalPosts} ");
		}

return($arrPosts);
	}

/**
	 * get posts from meta query
	 */
	private function getPostsByMeta($arrPosts, $args, $maxPosts){

$search = $args["s"];
		unset($args["s"]);
				
		
		if(empty($this->searchMetaKey))
			return($arrPosts);

$searchMetaKeys = explode(",", $this->searchMetaKey);
		$arrMetaQuery = array("relation" => "OR");

foreach ($searchMetaKeys as $metaKey) {
			$metaKey = trim($metaKey);
			$arrMetaQuery[] = array(
				'key'     => $metaKey,
				'value'   => $search,
				'compare' => "LIKE"
			);
		}

$arrExistingMeta = UniteFunctionsUC::getVal($args, "meta_query", array());
		$args["meta_query"] = array_merge($arrExistingMeta, $arrMetaQuery);

$query = new WP_Query();
		$query->query($args);
		$arrPostsByMeta = $query->posts;

//debug output
		if(GlobalsProviderUC::$showPostsQueryDebug == true){

dmp("Search By Meta Fields");
			dmp("Query:");
			dmp($args);
			dmp("Found Posts: ".count($arrPostsByMeta));

}
		
		$arrPosts = array_merge($arrPosts, $arrPostsByMeta);
		
		if (!empty($arrPosts))
			$arrPosts = UniteFunctionsWPUC::deleteDuplicatePostsFromArray($arrPosts);
		
		return($arrPosts);
	}

/**
	 * search posts by terms
	 */
	private function getPostsByTerms($arrPosts, $args, $maxPosts){

if($this->searchInTerms == false)
			return($arrPosts);

$search = $args["s"];

unset($args["s"]);

$postType = UniteFunctionsUC::getVal($args, "post_type");

if(empty($postType))
			return($arrPosts);

$arrTax = UniteFunctionsWPUC::getPostTypeTaxomonies($postType);

if(empty($arrTax))
			return($arrPosts);

$arrAllTaxNames = array_keys($arrTax);

$arrTaxNames = UniteFunctionsUC::csvToArray($this->strTerms);

if(!empty($arrTaxNames))
			$arrTaxNames = array_intersect($arrAllTaxNames, $arrTaxNames);
		else
			$arrTaxNames = $arrAllTaxNames;

if(empty($arrTaxNames)){

if(GlobalsProviderUC::$showPostsQueryDebug == true) {
				
				dmp("Search By Terms ");
				dmp("Taxonomies not found: {$this->strTerms}. please use some of those: ");
				dmp($arrAllTaxNames);
				
			}

return($arrPosts);
		}
		
		
		$arrTermsSearch = array();
		$arrTermsSearch["taxonomy"] = $arrTaxNames;
		$arrTermsSearch["search"] = $search;
		$arrTermsSearch["hide_empty"] = true;
		$arrTermsSearch["number"] = 50;
		//$arrTermsSearch["fields"] = "id=>name";

$termsQuery = new WP_Term_Query();
		$arrTermsFound = $termsQuery->query($arrTermsSearch);

if(empty($arrTermsFound)){
			if(GlobalsProviderUC::$showPostsQueryDebug == true){
				dmp("no terms found by: $search. Terms Query:");
				dmp($arrTermsSearch);
			}

return($arrPosts);
		}
		
		$arrTaxQuery = UniteFunctionsWPUC::getTaxQueryFromTerms($arrTermsFound);
		$args = UniteFunctionsWPUC::mergeArgsTaxQuery($args,$arrTaxQuery);

$query = new WP_Query();
		$query->query($args);
		$arrPostsByTerms = $query->posts;

//debug output
		if(GlobalsProviderUC::$showPostsQueryDebug == true){
			dmp("Search By Terms");
			dmp("Query:");
			$strTerms = UniteFunctionsWPUC::getTermsTitlesString($arrTermsFound, true);
			dmp($strTerms);
			dmp($args);
			dmp("Found Terms: ".count($arrTermsFound));
			dmp("Found Posts: ".count($arrPostsByTerms));
			
		}

if(empty($arrPostsByTerms))
			return($arrPosts);

$arrPosts = array_merge($arrPosts, $arrPostsByTerms);

//remove duplicates if there are posts with the same ID in the array after merging two arrays "$arrPostsByTerms" and "$arrPosts"
		if (!empty($arrPosts))
			$arrPosts = UniteFunctionsWPUC::deleteDuplicatePostsFromArray($arrPosts);

return($arrPosts);
	}
	
	
	/**
	 * is there is special search in search filter
	 */
	public static function isSearchFilterHasSpecialArgs($data){
		
		$searchBy = UniteFunctionsUC::getVal($data, "search_by");
		
		if(empty($searchBy))
			return($output);
			
		if(is_array($searchBy) == false)
			return($output);
		
		$firstItem = $searchBy[0];
		
		if($firstItem != "all")
			return(true);
			
		//check search in meta
		
		$searchInMeta = UniteFunctionsUC::getVal($data, "search_in_meta");
		$searchInMeta = UniteFunctionsUC::strToBool($searchInMeta);
		
		if($searchInMeta == true){
			$searchInMetaName = UniteFunctionsUC::getVal($data, "searchin_meta_name");
			$searchInMetaName = trim($searchInMetaName);
			
			if(!empty($searchInMetaName))
				return(true);
							
		}
		
		//check search in terms
		
		$searchInTerms = UniteFunctionsUC::getVal($data, "search_in_terms");
		$searchInTerms = trim($searchInTerms);
		
		if($searchInTerms == true){

$searchInTaxonomy = UniteFunctionsUC::getVal($data, "search_in_taxonomy");
			$searchInTaxonomy = trim($searchInTaxonomy);
			
			if(!empty($searchInTaxonomy))
				return(true);
		}
		
		
		return(false);
	}

/**
	 * supress third party filters except of this class ones
	 */
	public static function supressThirdPartyFilters(){
		
		//on the enable hooks setting - don't supress hooks
		
		if(self::$enableThirdPartyHooks === true)
			return(false);

global $wp_filter;
		
		if(self::$customSearchEnabled == false){
			
			$wp_filter = array();
			return(false);
		}

//keys to leave
		$arrKeys = array("uc_filter_posts_list","posts_where");
		
		
		$newFilters = array();

foreach($arrKeys as $key){

$filter = UniteFunctionsUC::getVal($wp_filter, $key);

if(!empty($filter))
				$newFilters[$key] = $filter;
		}

$wp_filter = $newFilters;

}
	
	
	/**
	 * init the ajax search - before the get posts accure, from ajax request
	 */
	public function initCustomAjaxSeach($arrParams){
		
		self::$arrCurrentParams = $arrParams;
				
		//enable hooks
		
		$enableHooks = UniteFunctionsUC::getVal($arrParams, "enable_third_party_hooks");
		$enableHooks = UniteFunctionsUC::strToBool($enableHooks);
		
		if($enableHooks == true)
			self::$enableThirdPartyHooks = true;

$applyModifyFilter = false;

//search by meta fields
		$searchInMeta = UniteFunctionsUC::getVal($arrParams, "search_in_meta");
		$searchInMeta = UniteFunctionsUC::strToBool($searchInMeta);
		
		$searchMetaKey = UniteFunctionsUC::getVal($arrParams, "searchin_meta_name");

$searchMetaSku = UniteFunctionsUC::getVal($arrParams, "search_by_sku");
		$searchMetaSku = UniteFunctionsUC::strToBool($searchMetaSku);
		
		if($searchMetaSku == true){
			$searchInMeta = true;
			$searchMetaKey = "_sku";
		}
		
		if($searchInMeta == true){
			$applyModifyFilter = true;
			self::$customSearchEnabled = true;
			$this->searchInMeta = true;
			$this->searchMetaKey = $searchMetaKey;
		}

//search by terms
		$searchInTerms = UniteFunctionsUC::getVal($arrParams, "search_in_terms");
		$searchInTerms = UniteFunctionsUC::strToBool($searchInTerms);
		if($searchInTerms == true){
			$applyModifyFilter = true;
			self::$customSearchEnabled = true;
			$this->searchInTerms = true;
			$this->strTerms = UniteFunctionsUC::getVal($arrParams, "search_in_taxonomy");
		}
		
		//search by post fields
		$arrSearchPostFields = UniteFunctionsUC::getVal($arrParams, "search_by");
		
		if(!empty($arrSearchPostFields) && in_array("all", $arrSearchPostFields) == false){
			
			add_filter( 'posts_where', array($this,'setWherePostParts'), 10, 2 );
			
			self::$customSearchEnabled = true;
			
			$this->searchPostFields = $arrSearchPostFields;
		}
		
		
		//skip main query if just meta or terms selected for example
		
		if(empty($arrSearchPostFields) && $applyModifyFilter == true){
			GlobalsProviderUC::$skipRunPostQueryOnce = true;			
		}
		
		
		if($applyModifyFilter == true){
			UniteProviderFunctionsUC::addFilter("uc_filter_posts_list", array($this,"onPostsResponse"),10,3);
		}
		
	}

}

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