company.php

function generateElasticSearchQueryFromTerm( $term, $lang = null ) {
	$term           = strtolower( $term );

	$query = [
            'sort'=> [
		            'meta.societe_pgs_vip.raw'=> [
			            'order'=> 'desc'
		            ],
//		            '_score' => [
//			            'order'=> 'desc'
//		            ]
            ],
		'query' =>
			[
				'bool' => [
					'must'   => [],
					'filter' =>
						[
							'term' => [
								'post_type.raw' => 'societe'
							]
						]
				]
			]
	];

	$query['query']['bool']['must'][] = [
		'dis_max' =>
			[
				'queries'     =>
					[
						[
							'multi_match' =>
								[
									'query'  => $term,
									'type'   => 'cross_fields',
									'fields' =>
										[
											'terms.tag_societe.name',
										],
									'boost'  => 5,
								],
						],
						[
							'wildcard' =>
								[
									'post_title' => '*' . $term . '*'
								]
						],
						[
							'wildcard' =>
								[
									'terms.tag_societe.name' => '*' . $term . '*'
								]
						],
						[
							'multi_match' =>
								[
									'query'  => $term,
									'type'   => 'cross_fields',
									'fields' =>
										[
											0 => 'post_title',
										],
									'boost'  => 1,
								],
						],
						[
							'multi_match' =>
								[
									'query'  => $term,
									'type'   => 'cross_fields',
									'fields' =>
										[
											0 => '*_pds_ad_num_tel.value',
										],
									'boost'  => 0,
								],
						],
					],
				'tie_breaker' => '0.5'
			]
	];

	$field = [
	    'postalcode' => 'meta.pgs_address_0_pds_ad_code_postal.value',
	    'gouv' => 'meta.pgs_address_0_pgs_ad_gouvernorat.value'
    ];

	if(!empty($_GET['ac']) && $_GET['ac'] == 'a' && !empty($_GET['ac_id'])){
		$query['query']['bool']['must'] = [];
		$termIds = [];
		$termIds[] = pll_get_term($_GET['ac_id'], 'fr');
		$termIds[] = pll_get_term($_GET['ac_id'], 'en');
		$termIds[] = pll_get_term($_GET['ac_id'], 'ar');
		$query['query']['bool']['must'][] = [
			'terms' => [
				'terms.tag_societe.term_id' => $termIds
			]
		];
	}

	if(!empty($_GET['c_type']) && !empty($_GET['postalcode'])){

        $postalCodes = [];
        $postalCode = $_GET['postalcode'];
        $englishPostId = pll_get_post($postalCode, 'en');
        $arabicPostId = pll_get_post($postalCode, 'ar');

        if(null !== $englishPostId){
            $postalCodes[] = $englishPostId;
        }
        if(null !== $arabicPostId){
            $postalCodes[] = $arabicPostId;
        }
		$postalCodes[] = (int)$postalCode;

		$query['query']['bool']['must'][] = [
			'terms' => [
                $field[$_GET['c_type']] => $postalCodes
			]
		];
	}
	$langsToSearchIn = [
		'fr' => [
			'fr',
			'ar',
		],
		'en' => [
			'fr',
			'en',
		],
		'ar' => [
			'ar',
			'fr',
		]
	];
	$currentLang = pll_current_language();
	if(null !== $lang){
		$currentLang = $lang;
	}

	$query['query']['bool']['must'][] = [
		'terms' => [
			'terms.language.slug' => $langsToSearchIn[$currentLang]
		]
	];
//exit(json_encode($query));
	return $query;
}