Laravel 4+ very basic search Trait that you can add on any model

MatchableTrait.php

<?php

use Illuminate\Database\Query\Builder;

/**

 * Trait MatchableTrait
 * Author : Gael Debost
 * Add a very basic match method to an Eloquent Model. Based on a SQL MATCH
 * You need FULL TEXT Indexes in order to match fields. Somes rules :
 * http://stackoverflow.com/a/1241739

 * USAGE :
    * Model::match("Michel Dupont, France", ["name","firstname","country"]);
    * Model::match("keyword", [
    *  ["book_title","book_author"], ["editor_name"]
    * ]);

 * This only works directly on a model.
 * When building a query you'll end up with an instance of Illuminate\Database\Query\Builder.
 * You can then specify it as an additional argument
    * Model::match("Tyler Durden", ["name","firstname"], $query);

 */

trait MatchableTrait  {

    /**
     * @param string $expression
     * @param array  $indexes
     * @param Builder   $query
     *
     * @return Builder
     */
    public static function match($expression,$indexes,&$query=null)
    {
        $expressions = preg_split("/[,\s]+/",$expression);
        !$query && ($query = new self);

        foreach($expressions as $words) {
            $query->where(function ($query) use ($words, $indexes) {
                if(!is_array($indexes[0]))
                    $indexes = [$indexes];
                foreach($indexes as $fields)
                    $query->orWhereRaw(
                        'MATCH('.implode(",",$fields) . ') AGAINST ("'.$words.'" IN BOOLEAN MODE)'
                    );
            });
        }

        return $query;
    }
}