PHP Codeigniter詳細検索フィルタ

Question

Codeigniter Query Builderを使用して高度な検索クエリを作成していますが、その結果が間違っています。私は3つのデータベーステーブル（vehicles, vehicle_pictures, date_ranges）を取得しています。 date_rangesテーブルには各車両の使用不可能な日付が含まれており、車両ごとに使用不可能な日付範囲がゼロまたはそれ以上ある可能性があります。このアプローチが良いかどうかを知りたいですか？私の質問に間違いがあります。以下は私のフィルターの画像とコードです。 Picture of Filters

public function get_results() { 
    $location = strip_tags($this->input->get('location')); 
    $location = explode(',', $location ? $location : ''); 
    $pickup = $this->input->get('pickup'); 
    $dropoff = $this->input->get('dropoff'); 
    $min_price = $this->input->get('min_price'); 
    $max_price = $this->input->get('max_price'); 
    $types = $this->input->get('types') ? $this->input->get('types') : []; 
    $travelers = $this->input->get('people'); 
    $min_year = $this->input->get('min_year'); 
    $max_year = $this->input->get('max_year'); 
    $min_length = $this->input->get('min_length'); 
    $max_length = $this->input->get('max_length'); 

    $select = ['vehicles.id', 'vehicles.year', 'vehicles.model', 'vehicles.nightly_rate', 'vehicles.class', 'vehicle_pictures.picture', 'vehicles.people']; 
    $this->db->select($select); 

    if (!empty($location)) { 
     foreach ($location as $loc) { 
      $this->db->or_like('country', $loc, 'both') 
      ->or_like('state', $loc, 'both') 
      ->or_like('city', $loc, 'both') 
      ->or_like('street', $loc, 'both') 
      ->or_like('zip', $loc, 'both'); 
     } 
    } 

    if (!empty($pickup) && !empty($dropoff)) { 
     $d1 = date('Y-m-d', strtotime($pickup)); 
     $d2 = date('Y-m-d', strtotime($dropoff)); 

     $this->db->where("'$d1' NOT BETWEEN date_ranges.start_date AND date_ranges.end_date AND '$d2' NOT BETWEEN date_ranges.start_date AND date_ranges.end_date OR ('$d1' < date_ranges.start_date AND '$d2' > date_ranges.end_date) "); 

    } else { 
     if ($pickup && !$dropoff) { 
      $d1 = date('Y-m-d', strtotime($pickup)); 
      $this->db->where("'$d1' NOT BETWEEN date_ranges.start_date AND date_ranges.end_date "); 
     } 
     if ($dropoff && !$pickup) { 
      $d2 = date('Y-m-d', strtotime($dropoff)); 
      $this->db->where("'$d2' NOT BETWEEN date_ranges.start_date AND date_ranges.end_date "); 
     } 
    } 

    if (!empty($min_price) && !empty($max_price)) { 
     $this->db->where("vehicles.nightly_rate BETWEEN '$min_price' AND '$max_price' "); 
    } else { 
     if (!empty($min_price)) { 
      $this->db->where('vehicles.nightly_rate <=', $min_price); 
     } 
     if (!empty($max_price)) { 
      $this->db->where('vehicles.nightly_rate >=', $max_price); 
     } 
    } 

    if (!empty($min_year) && !empty($max_year)) { 
     $this->db->where("vehicles.year BETWEEN '$min_year' AND '$max_year' "); 
    } else { 
     if (!empty($min_year)) { 
      $this->db->where('vehicles.year <=', $min_year); 
     } 
     if (!empty($max_year)) { 
      $this->db->where('vehicles.year >=', $max_year); 
     } 
    } 

    if (!empty($min_length) && !empty($max_length)) { 
     $this->db->where("vehicles.length BETWEEN '$min_length' AND '$max_length' "); 
    } else { 
     if (!empty($min_length)) { 
      $this->db->where('vehicles.length <=', $min_length); 
     } 
     if (!empty($max_length)) { 
      $this->db->where('vehicles.length >=', $max_length); 
     } 
    } 

    if (!empty($travelers)) { 
     $this->db->where('vehicles.people >', $travelers); 
    } 

    if(!empty($types)) { 
     $this->db->where_in('vehicles.class', array_values($types)); 
    } 

    $query = $this->db->join('vehicle_pictures', 'vehicles.id = vehicle_pictures.vehicle_id', 'left') 
    ->join('date_ranges', 'vehicles.id = date_ranges.vehicle_id', 'left') 
    ->group_by('vehicles.id') 
    ->get('vehicles'); 
    echo '<pre>'; 
    print_r($query->result_array()); 
    exit; 
} 

Answer 1

あなたのCIのバージョンは何ですか？この

if (!empty($location)) { 
      $this->db->group_start(); 
     foreach ($location as $loc) { 
      $this->db->or_like('country', $loc, 'both') 
      ->or_like('state', $loc, 'both') 
      ->or_like('city', $loc, 'both') 
      ->or_like('street', $loc, 'both') 
      ->or_like('zip', $loc, 'both'); 
     } 
      $this->db->group_end(); 
    }