search-api-acf

<?php

class Jalin_Search {

    public $add_filter = 0;

    public function __construct(){
        add_action( 'wp_ajax_query-projects', array( $this, 'jalin_query_projects' ) );
        add_action( 'wp_ajax_nopriv_query-projects', array( $this, 'jalin_query_projects' ) );
    }

    private function build_meta_query_array( $search ){

        if(!empty($search)){

            $meta_query = array('relation' => 'AND');

            $rental = $search->for_buy_or_rent == 'rent' ? true : false;

            foreach( (array) $search as $key => $value){

                if($value == 'Any' || $value == '') continue;

                switch($key){

                    case 'for_buy_or_rent' :
                    case 'type' :
                        $meta_query[] = $this->build_meta_query($key, $value, '=');
                    break;

                    case 'max_beds' :
                        if($value > 0 || $value != ''){
                            $this->add_filter = 1;
                            _log('do add filter');
                            $meta_query[] = $this->build_meta_query('stock_item_main_%_bedrooms', $value, '<=', 'NUMERIC');
                        }
                    break;

                    case 'max_price' :
                        if($value > 0 || $value != ''){
                            $this->add_filter = 1;
                            $meta_query[] = $this->build_meta_query('stock_item_main_%_starting_price', $value, '<=', 'NUMERIC');
                        }
                    break;

                    // attempt #2
                    case 'keyword' :

                        trim($value);

                        $keyword_query = array('relation' => 'OR');

                        $keyword_query[] = $this->build_meta_query('project_id', $value, 'LIKE', 'NUMERIC');

                        $keyword_query[] = $this->build_meta_query('postcode', $value, 'LIKE', 'NUMERIC');

                        $keyword_query[] = $this->build_meta_query('suburb', $value, 'LIKE');

                        $meta_query[] = $keyword_query;

                    break;

                }
            }

        }

        return $meta_query;
    }

    private function build_meta_query($key, $value, $compare, $type = 'CHAR'){
        return array(
            'key' => $key,
            'value' => $value,
            'compare' => $compare,
            'type' => $type
        );
    }

    public function jalin_where_filter( $pieces ){
        $pieces['where'] = str_replace("meta_key = 'stock_item_main_%", "meta_key LIKE 'stock_item_main_%", $pieces['where']);
        return $pieces;
    }

    public function jalin_query_projects() {

        $search = json_decode(stripslashes($_GET['search']));
        $projects = array();
        $project_args = array(
            'post_type' => 'project',
            'paged' => isset($search->page) ? $search->page : 1,
            'posts_per_page' => 24,
        );


        if(gettype($search) === 'object'){
            $meta_query = $this->build_meta_query_array($search);
            $project_args['meta_query'] = $meta_query;
        }

        if($this->add_filter)
            add_filter('get_meta_sql', array($this, 'jalin_where_filter'));

        $posts = get_posts($project_args);

        if($this->add_filter)
            remove_filter( 'get_meta_sql', array($this, 'jalin_where_filter') );

        foreach($posts as $post){

            $fields = get_fields($post->ID);
            $stock = array();

            foreach($fields['stock_item_main'] as $s){
                $stock[] = array(
                    'bedrooms' => $s['bedrooms'],
                    'bathrooms' => $s['bathrooms'],
                    'cars' => $s['cars'],
                    'price' => $s['starting_price']
                );
            }

            _log($fields['project_image']['sizes']);

            $projects[] = array(
                'name'  => $post->post_title,
                'slug'  => $post->post_name,
                'image' => $fields['project_image']['sizes']['thumb_crop'],
                'type'  => $fields['type'],
                'contract' => $fields['for_buy_or_rent'],
                'stock' => $stock,
                'address' => array(
                    'street' => $fields['street'],
                    'suburb' => $fields['suburb'],
                    'postcode' => $fields['postcode'],
                    'state' => $fields['state'],
                )
            );
        }

        wp_send_json( $projects );

    }

}

$jalin_search = new Jalin_Search();