mysql＆codeigniter更新多行

Question

I have a table containing the availability of rooms 我有一张桌子，上面有房间
the table looks something like this (sorry for the snippet) 桌子看起来像这样（对不起代码段）

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>availability</title> <meta name="GENERATOR" content="HeidiSQL 9.1.0.4936"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style type="text/css"> thead tr {background-color: ActiveCaption; color: CaptionText;} th, td {vertical-align: top; font-family: "Tahoma", Arial, Helvetica, sans-serif; font-size: 8pt; padding: 3px; } table, td {border: 1px solid silver;} table {border-collapse: collapse;} thead .col0 {width: 106px;} .col0 {text-align: right;} thead .col1 {width: 80px;} .col1 {text-align: right;} thead .col2 {width: 79px;} .col2 {text-align: right;} thead .col3 {width: 80px;} .col3 {text-align: right;} thead .col4 {width: 91px;} thead .col5 {width: 51px;} .col5 {text-align: right;} thead .col6 {width: 113px;} .col6 {text-align: right;} thead .col7 {width: 113px;} .col7 {text-align: right;} thead .col8 {width: 78px;} .col8 {text-align: right;} thead .col9 {width: 79px;} .col9 {text-align: right;} </style> </head> <body> <p style="font-family: monospace; white-space: pre;">SELECT * FROM `availability` WHERE today between '2015-04-10' and '2015-04-18' and idroom = 28 LIMIT 1000</p> <table caption="jos_bookitavailability (9 rows)"> <thead> <tr> <th class="col0">idavailability</th> <th class="col1">idoffer</th> <th class="col2">idbook</th> <th class="col3">idroom</th> <th class="col4">today</th> <th class="col5">price</th> <th class="col6">price_deviation_1</th> <th class="col7">price_deviation_2</th> <th class="col8">availability</th> <th class="col9">idcategory</th> </tr> </thead> <tbody> <tr> <td class="col0">149631</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-18</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149630</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-17</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149629</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-16</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149628</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-15</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149627</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-14</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149626</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-13</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149625</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-12</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149624</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-11</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> <tr> <td class="col0">149623</td> <td class="col1">0</td> <td class="col2">0</td> <td class="col3">28</td> <td class="col4">2015-04-10</td> <td class="col5">0</td> <td class="col6"></td> <td class="col7"></td> <td class="col8">0</td> <td class="col9">1</td> </tr> </tbody> </table> <p> <em>generated 2015-04-06 13:09:39 by <a href="http://www.heidisql.com/">HeidiSQL 9.1.0.4936</a></em> </p> </body> </html>

What i want to do is: when i have a new booking, change the field 'idbook' to the booking id and the availability to 1 for each row depending on dates the book (see: today field) and idroom. 我想做的是：当我有一个新的预订时，将“ idbook”字段更改为预订ID，并将每行的可用性更改为1，具体取决于书籍的日期（请参阅“今天”字段）和idroom。
In the model i have this code (mind the "debugging") 在模型中，我有此代码（注意“调试”）


function updateAvailability($data)
    {

    $this->db->select('idbook');
    $this->db->where('idguests',$data['guestid']);
    $this->db->where('valid_from',$data['from_date']);
    $this->db->where('valid_to',$data['to_date']);
    $this->db->where('idroom',$data['idroom']);
    $query = $this->db->get('bookitbooking');

    $result = $query->row();
    $idbook = $result->idbook;

    $changes = array(
        'idbook' => $idbook,
        'availability' => 1
    );
    $where = array(
        'today' => "BETWEEN '{$data['from_date']}' AND '{$data['to_date']}'",
        'idroom' => $data['idroom']
    );

    $update = $this->db->update('bookitavailability',$changes,$where);
    if( $update === TRUE){
        echo "done";
    } else {
        echo "wrong";
    }

}

For a reason, the above code doesnt work, i have a "done" return echoed, but no changes in my DB. 由于上述原因，上面的代码无法正常工作，我回显了“完成”的返回值，但是数据库中没有任何更改。

Answer 1

Try to double check this string: 尝试仔细检查以下字符串：

"BETWEEN '{$data['from_date']}' AND '{$data['to_date']}'"

to 至

"BETWEEN ".$data['from_date']." AND ".$data['to_date']

Answer 2

The Problem may be $data['from_date'] is a string so it may not be upadting the correct row. 问题可能是$ data ['from_date']是一个字符串，因此它可能不会更新正确的行。

try 尝试

"BETWEEN DATE(".$data['from_date'].") AND DATE(".$data['to_date'] . ")"

Answer 3

Ok... So since i saw there was an issue with the where clause not functioning as i wanted and hoped, i've made some changes to my code. 好的...因此，由于我看到where子句无法按我希望的那样工作，所以我对代码进行了一些更改。
First, i've made a foreach() loop for the dates and then i passed in each loop, the dates i wanted for the where statement. 首先，我为日期创建了一个foreach（）循环，然后在每个循环中传递了我想要的where语句日期。 Here's how i "solved" it. 这就是我“解决”它的方法。


function updateAvailability($data)
    {
        $this->db->select('idbook');
        $this->db->where('idguests',$data['guestid']);
        $this->db->where('valid_from',$data['from_date']);
        $this->db->where('valid_to',$data['to_date']);
        $this->db->where('idroom',$data['idroom']);
        $query = $this->db->get('bookitbooking');

        $result = $query->row();
        $idbook = $result->idbook;

        $changes = array(
            'idbook' => $idbook,
            'availability' => 1
        );

        $arrival = new DateTime($data['from_date']);
        $departure = new DateTime($data['to_date']);
        $interval = DateInterval::createFromDateString('1 day');
        $period = new DatePeriod($arrival, $interval, $departure);

        foreach($period as $day){
            $this->db->where('idroom',$data['idroom']);
            $this->db->where('today',$day->format('Y-m-d'));
            $this->db->update('bookitavailability',$changes);
        }
    }

mysql＆codeigniter更新多行

问题描述

3 个解决方案

解决方案1
0 2015-04-06 10:29:35

解决方案2
0 2015-04-06 10:46:13

解决方案3
0 已采纳 2015-04-06 12:22:14

mysql＆codeigniter更新多行

问题描述

3 个解决方案

解决方案1 0 2015-04-06 10:29:35

解决方案2 0 2015-04-06 10:46:13

解决方案3 0 已采纳 2015-04-06 12:22:14

解决方案1
0 2015-04-06 10:29:35

解决方案2
0 2015-04-06 10:46:13

解决方案3
0 已采纳 2015-04-06 12:22:14