codeigniter框架中的错误消息： 发生数据库错误
$CI->db->where('id',1);
$settings = $CI->db->get('settings')->row_array();
$CI->db->where('id',$room_type_id);
$CI->db->select('room_types.*,base_price as price');
$room_type = $CI->db->get('room_types')->row_array();
//echo '<pre>'; print_r($room_type);die;
$CI->db->where('room_type_id',$room_type_id);
$CI->db->select('rooms.*,count(room_no) as total_rooms');
$rooms = $CI->db->get('rooms')->row_array();
$total_rooms = $rooms['total_rooms'];
//echo '<pre>'; print_r($rooms);die;
$begin = new DateTime($check_in);
$end = new DateTime($check_out);
$interval = DateInterval::createFromDateString('1 day');
$period = new DatePeriod($begin, $interval, $end);
foreach($period as $dt){
$date = $dt->format( "Y-m-d" );
$dayno = $dt->format( "N" );
$day = $dt->format( "D" );
$day = strtolower($day);
///echo $date;die;
//check for room block period
if($date >= $settings['room_block_start_date'] && $date <=$settings['room_block_end_date'])
{
$block_message = "Sorry.. No Room Available Between ".date('d/m/Y',strtotime($settings['room_block_start_date']))." to ".date('d/m/Y',strtotime($settings['room_block_end_date']))." ";
$CI->session->set_flashdata('error', $block_message);
redirect('');
}
$CI->db->where('O.room_type_id',$room_type_id);
$CI->db->where('R.date',$date);
$CI->db->select('R.*,');
$CI->db->join('orders O', 'O.id = R.order_id', 'LEFT');
$orders = $CI->db->get('rel_orders_prices R')->result_array();
//echo '<pre>'; print_r($orders);die;
//echo $total_rooms;die;
if($total_rooms > 0){
//echo count($orders);die;
if(count($orders) >= $total_rooms){
$CI->session->unset_userdata('booking_data');
$CI->session->unset_userdata('coupon_data');
$CI->session->set_flashdata('error', "Sorry.. This Dates Between Rooms Not Available Please Try With Another Date Or Room");
redirect('front/book/index'.$query);
}else{
continue; // continue loop
}
}else{
$CI->session->unset_userdata('booking_data');
$CI->session->unset_userdata('coupon_data');
$CI->session->set_flashdata('error', "Sorry.. This Dates Between Rooms Not Available Please Try With Another Date Or Room");
redirect('front/book/index'.$query);
}
}
return;
}
function check_availability_ajax($check_in,$check_out,$adults,$kids,$room_type_id){
$query = '?date_from='.$check_in.'&date_to='.$check_out.'&adults='.$adults.'&kids='.$kids.'&room_type=';
$CI =& get_instance();
if($check_in==$check_out){
$check_out = date('Y-m-d', strtotime($check_out.'+ 1 day'));
}
$CI->db->where('id',1);
$settings = $CI->db->get('settings')->row_array();
$CI->db->where('id',$room_type_id);
$CI->db->select('room_types.*,base_price as price');
$room_type = $CI->db->get('room_types')->row_array();
//echo '<pre>'; print_r($room_type);die;
$CI->db->where('room_type_id',$room_type_id);
$CI->db->select('rooms.*,count(room_no) as total_rooms');
$rooms = $CI->db->get('rooms')->row_array();
$total_rooms = $rooms['total_rooms'];
//echo '<pre>'; print_r($rooms);die;
$begin = new DateTime($check_in);
$end = new DateTime($check_out);
$interval = DateInterval::createFromDateString('1 day');
$period = new DatePeriod($begin, $interval, $end);
foreach($period as $dt){
$date = $dt->format( "Y-m-d" );
$dayno = $dt->format( "N" );
$day = $dt->format( "D" );
$day = strtolower($day);
if($date >= $settings['room_block_start_date'] && $date <=$settings['room_block_end_date'])
{
$block_message = "Sorry.. No Room Available Between ".date('d/m/Y',strtotime($settings['room_block_start_date']))." to ".date('d/m/Y',strtotime($settings['room_block_end_date']))." ";
return $block_message;
}
$CI->db->where('O.room_type_id',$room_type_id);
$CI->db->where('R.date',$date);
$CI->db->select('R.*,');
$CI->db->join('orders O', 'O.id = R.order_id', 'LEFT');
$orders = $CI->db->get('rel_orders_prices R')->result_array();
//echo $total_rooms;die;
if($total_rooms > 0){
if(count($orders) > $total_rooms){
$CI->session->unset_userdata('booking_data');
$CI->session->unset_userdata('coupon_data');
return 'Sorry.. This Dates Between Rooms Not Available Please Try With Another Date Or Room';
}else{
continue; // continue loop
}
}else{
$CI->session->unset_userdata('booking_data');
$CI->session->unset_userdata('coupon_data');
return 'Sorry.. This Dates Between Rooms Not Available Please Try With Another Date Or Room';
}
}
return 1;
}
为什么会出现这样的错误以及如何消除它？在代码中可能存在什么问题？
在这些功能中，出现问题或一切正常？
功能check_availability（$ check_in，$ check_out，$ adults，$ kids，$ room_type_id）{ $ query =＆＃39;？date_from =＆＃39;。$ check_in。＆＃39;＆amp; date_to =＆＃39;。$ check_out。＆＃39;＆amp; adults =＆＃39;。$ adult。 ＆＃39;＆安培;孩子=＆＃39; $孩子＆＃39;＆安培; room_type =＆＃39 ;; $ CI =＆amp; get_instance（）; 如果（$ CHECK_IN == $ CHECK_OUT）{ $ check_out =日期（＆＃39; Y-m-d＆＃39;，strtotime（$ check_out。＆＃39; + 1天＆＃39;））; }
function index()
{
//echo '<pre>'; print_r($_GET);
//check availbilty
//get_invoice_number();
$this->session->unset_userdata('booking_data');
$this->session->unset_userdata('coupon_data');
$data['page_title'] = lang('make_reservation');
$data['meta_description'] = $this->setting->meta_description;
$data['meta_keywords'] = $this->setting->meta_keywords;
$data['banners'] = $this->homepage_model->get_banners();
$data['testimonials'] = $this->homepage_model->get_testimonials(); // get 6 testimonials
$data['room_types'] = $this->homepage_model->get_room_types_all();
$data['taxes'] = $this->homepage_model->get_taxes();
if(!empty($_GET['room_type'])){
$data['services'] = $this->homepage_model->get_paid_services($_GET['room_type']);
}
//echo '<pre>'; print_r($data['services']);
if(empty($_GET['room_type'])){
$this->render('book/room_types', $data);
}else{
check_availability($_GET['date_from'],$_GET['date_to'],$_GET['adults'],$_GET['kids'],$_GET['room_type']);
$data['room_type'] = $this->homepage_model->get_room_type($_GET['room_type']);
$this->render('book/view', $data);
}
}
这是我使用该函数的Book.php控制器代码：
["Microsoft.Website", "Microsoft.Compute"]答案 0 :(得分：2)
由于MYSQL中的ONLY_FULL_GROUP_BY选项设置如此友好，您正面临此问题，
SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));
解决问题。
答案 1 :(得分：1)
包括COUNT()或SUM()等聚合函数的SQL查询总是有一个GROUP BY子句。其中指定了最终结果集中的其他非分组列。
在您的查询中，注意到以下注释：
rooms.*，在分组时不建议这样做。GROUP BY子句中指定这些列。例如，
SELECT
Count(product_tb.product_id),
product_tb.`name`,
product_tb.details
FROM
`product_tb`
WHERE
product_tb.product_id = 1
GROUP BY
product_tb.`name`,
product_tb.details