我在这里做错了什么？

Question

I've been staring at this page for over an hour. My update function just doesnt not seem to update. When i tried it through sql it seems ok. I have a form at the bottom of this page which updates a field in a table. Can anyone spot the mistakes?

   <?php

// First of all initialise the user and check for permissions
require_once "/var/www/users/user.php";
$user = new CHUser(2);


// Initialise the template
require_once "/var/www/template/template.php";
$template = new CHTemplate();

// And create a cid object
    require_once "/var/www/Testing/DisplayWIPOnLocation.php";
$BundleProgress= new CHWIPProgress();


 if(isset($_GET['Reference'])){

 $todays_date = date("Y-m-d H:i:s");
 $content .= " <h3> Details for Bundle : $reference </h3> ";
 $bundle = $BundleProgress->GetBundle($_GET['Reference']);   
 $reference = $_GET['Reference'];

 // Now show the details

    foreach($bundle as $x){
        $content .= "
       <table>
                                     <tr>
                    <th> Location </th> 
                    <td>" . $x['Description'] . "</td> 
                    </tr>



                    <tr>
                    <th> Works Order Number </th> 
                    <td>" . $x['WorksOrder'] . "</td> 
                    </tr>


                    <tr>
                    <th> Bundle Number </th> 
                            <td>" . $x['Number'] . "</td>
                    </tr>


                     <tr>
                    <th>Qty Issued</th>
                    <td>" . $x['Qty'] . "</td>

                    </tr>


                    <tr>
                    <th>Bundle Reference </th> 
                    <td>" . $x['Reference'] . "</td>

                    </tr>

                    <tr>
                    <th>Style description</th> 
                                            <td>" . $x['Stock'] . "</td>

                    </tr>

                    <tr>
                            <th>Due Date</th>
                    <td>" . $x['DueDate'] . "</td>

                    </tr>


                    <tr>
                    <th>Date In </th>
                    <td>" . $x['DateIN'] . "</td>

                    </tr>

                    <tr>
                    <th>Date Out</th>
                    <td>" . $x['DateOUT'] . "</td>

                    </tr>

                    <tr>
                    <th>Last Code</th>
                    <td>" . $x['Last'] . "</td>

                    </tr>

                </table>

                <br> "; 

    }

                 $content .= " </table>
                <form action='viewBundle.php?step=2' method='post'>
                <p>Reason: <input type='text' name='reason' /><br       
                                    /><p>
                <p><input type='hidden' name='bundlereference'   
                                     id='Username' value='" . $x['Reference'] . "' />
                <input type='submit' name ='add'/></form>

                </table>  ";   

                if($_GET['step'] == 2) {



        $BundleProgress->UpdateReason($_POST['reason'],$_POST['bundlereference']);

                 $content .= " <a href='index.php?location=" .   
              $x['Description'] . "'> updated</a> "; 
                }

       }


     else {
    $content .= "<h3>Something has gone wrong</h3>

    <br>

    <a href='index.php?location=" . $x['Description'] . "'> Return to Previous            
  Page </a> 

    ";
}

  $template->SetTag("content", $content);
  echo $template->Display();

  ?>

Function

    public function UpdateReason($reason, $bundlereference) {
                    $sql = "UPDATE `ArchiveBundle`
                                    SET `Issue` = " . $reason . "
                                    WHERE `BundleReference` = " . $bundlereference .    
                ";";
                    mysql_select_db(DB_DATABASE_NAME, $this->conn);
                    return mysql_query($sql, $this->conn);
            }

Answer 1

change:

if($_GET['step'] == 2)

to:

if((int)$_GET['step'] === 2)

and:

public function UpdateReason($reason, $bundlereference) {
    $sql = "UPDATE `ArchiveBundle`
        SET `Issue` = " . $reason . "
        WHERE `BundleReference` = " . $bundlereference .    
        ";";
    mysql_select_db(DB_DATABASE_NAME, $this->conn);
    return mysql_query($sql, $this->conn);
}

to:

public function UpdateReason($reason, $bundlereference) {
    mysql_select_db(DB_DATABASE_NAME, $this->conn);

    $_reason = mysql_real_escape_string($reason,$this->conn);
    $_bundlereference = mysql_real_escape_string($bundlereference,$this->conn);

    $sql = "UPDATE `ArchiveBundle`
            SET `Issue` = '" . $_reason . "'
            WHERE `BundleReference` = '" . $_bundlereference . "'";

    return mysql_query($sql, $this->conn);
}

Try that. Code hasn't been tested but it's a good place to start.

To try and debug what's going on here do the following:

public function UpdateReason($reason, $bundlereference) {
    error_reporting(E_ALL ^ E_NOTICE);

    $db_selected = mysql_select_db(DB_DATABASE_NAME, $this->conn);

    if (!$db_selected) {
        die("Can't use db : " . mysql_error());
    }

    $_reason = mysql_real_escape_string($reason,$this->conn);
    $_bundlereference = mysql_real_escape_string($bundlereference,$this->conn);

    $sql = "UPDATE `ArchiveBundle`
            SET `Issue` = '" . $_reason . "'
            WHERE `BundleReference` = '" . $_bundlereference . "'";

    mysql_query($sql, $this->conn);

    die(mysql_error());
}

Also, it looks like on your form submission you're not passing in the Reference parameter so the if(isset($_GET['Reference'])) will fail when you post the form. I've change the table and form code below to make it more readable, pass in the Reference param on form submission, and also to update the db record BEFORE fetching the dataset so you'll see the updated records in the table returned.

// First of all initialise the user and check for permissions
require_once "/var/www/users/user.php";
$user = new CHUser(2);


// Initialise the template
require_once "/var/www/template/template.php";
$template = new CHTemplate();

// And create a cid object
require_once "/var/www/Testing/DisplayWIPOnLocation.php";
$BundleProgress= new CHWIPProgress();


if(isset($_GET['Reference'])){
    if($_GET['step'] == 2) {
        $BundleProgress->UpdateReason($_POST['reason'],$_POST['bundlereference']);
    }

    $todays_date = date("Y-m-d H:i:s");
    $content .= " <h3> Details for Bundle : $reference </h3> ";
    $bundle = $BundleProgress->GetBundle($_GET['Reference']);   
    $reference = $_GET['Reference'];

    // Now show the details
    foreach($bundle as $x){
        $content .= "
                    <table>
                        <tr><th> Location </th><td>" . $x['Description'] . "</td></tr>
                        <tr><th> Works Order Number </th><td>" . $x['WorksOrder'] . "</td></tr>
                        <tr><th> Bundle Number </th><td>" . $x['Number'] . "</td></tr>
                        <tr><th>Qty Issued</th><td>" . $x['Qty'] . "</td></tr>
                        <tr><th>Bundle Reference </th><td>" . $x['Reference'] . "</td></tr>
                        <tr><th>Style description</th><td>" . $x['Stock'] . "</td></tr>
                        <tr><th>Due Date</th><td>" . $x['DueDate'] . "</td></tr>
                        <tr><th>Date In </th><td>" . $x['DateIN'] . "</td></tr>
                        <tr><th>Date Out</th><td>" . $x['DateOUT'] . "</td></tr>
                        <tr><th>Last Code</th><td>" . $x['Last'] . "</td></tr>
                    </table>
                    <br>";
    }

    $content .= "<table>
                    <form action='viewBundle.php?Reference=" . $_GET['Reference'] . "&step=2' method='post'>
                        <p>Reason: <input type='text' name='reason' /></p><br/>
                        <p><input type='hidden' name='bundlereference' id='Username' value='" . $x['Reference'] . "' /></p>
                        <input type='submit' name ='add'/>
                    </form>
                </table>";   
} else {
    $content .= "<h3>Something has gone wrong</h3>
                <br>
                <a href='index.php?location=" . $x['Description'] . "'> Return to Previous Page </a> 
                ";
}

$template->SetTag("content", $content);
echo $template->Display();

Answer 2

Can I advise you break this down by first checking what mysql_query returns. It maybe that this particular variable is defined incorrectly. Also remember add quotes to the values in your query.