Nicolaslopezj\Searchable\SearchableTrait::scopeSearchRestricted PHP Method

    public function scopeSearchRestricted(Builder $q, $search, $restriction, $threshold = null, $entireText = false, $entireTextOnly = false)
    {
        $query = clone $q;
        $query->select($this->getTable() . '.*');
        $this->makeJoins($query);
        if (!$search) {
            return $q;
        }
        $search = mb_strtolower(trim($search));
        $words = explode(' ', $search);
        $selects = [];
        $this->search_bindings = [];
        $relevance_count = 0;
        foreach ($this->getColumns() as $column => $relevance) {
            $relevance_count += $relevance;
            if (!$entireTextOnly) {
                $queries = $this->getSearchQueriesForColumn($query, $column, $relevance, $words);
            } else {
                $queries = [];
            }
            if ($entireText === true && count($words) > 1 || $entireTextOnly === true) {
                $queries[] = $this->getSearchQuery($query, $column, $relevance, [$search], 50, '', '');
                $queries[] = $this->getSearchQuery($query, $column, $relevance, [$search], 30, '%', '%');
            }
            foreach ($queries as $select) {
                $selects[] = $select;
            }
        }
        $this->addSelectsToQuery($query, $selects);
        // Default the threshold if no value was passed.
        if (is_null($threshold)) {
            $threshold = $relevance_count / 4;
        }
        $this->filterQueryWithRelevance($query, $selects, $threshold);
        $this->makeGroupBy($query);
        $this->addBindingsToQuery($query, $this->search_bindings);
        if (is_callable($restriction)) {
            $query = $restriction($query);
        }
        $this->mergeQueries($query, $q);
        return $q;
    }