Solved

error in while loop

Posted on 2014-04-02
3
673 Views
Last Modified: 2014-04-02
I have a mySQL table called filterSetup which has 16 records. in the body of the page I loop through the recordset to dynamically create a form.  That works fine.  I see 16 rows. Each row has two text fields: operator1, value1 for row 1, operator2, value2 for row 2, etc.  Again, this part seems to be fine.

On submit is where I am having trouble looping through the recordset, and perhaps I am even going about this whole thing wrong.  But I have added some "alerts" and see that it gets through the first time but doesn't move to the next record.

I know that I should be using mysqli instead of mysql, and that will be my next task when the site is up and running.

<?php
    require_once('config.php');
    if (!empty($_POST["applyFilter"]) )
    {
        $sql = "Delete from reportfilters";
        if (!$res = mysql_query($sql)) die( mysql_error() );  

        $sql = "SELECT * FROM filterSetup order by filterID" ;
        $res = mysql_query($sql);
        if (!$res) die( mysql_error() );
        while ($row = mysql_fetch_assoc($res))
        {
            echo "</br>top of while</br>";
            $filterID =$row["filterID"];
            $operator = $_POST["operator".$filterID];
            $value = '';
            if (!empty($_POST["value".$row["filterID"]]) ) {            
                $value = mysql_real_escape_string($_POST["value".$filterID]);
            } 
echo "id:".$filterID." operator:".$operator." value:".$value;
            //save the filterSetup
echo "</br>starting update";    
                $sql = "Update filterSetup set myOperator='".$operator."', filterValue='".$value."'".
                            " where filterID=".$filterID;
                if (!$res = mysql_query($sql)) die( mysql_error() ); 
echo "</br>update ok";
            //save the filterLine
                if ($value !='' ) {
                    if ($operator =='contains') {
                        $strFilter=" like '%". $value . "%'";
                    } else {
                        $strFilter=$operator . "'" . $value . "'";
                    }
                    $strFilter= $row["filterField"] . $strFilter;
                    $sql = "Insert into reportfilters (filterLine) values('".mysql_real_escape_string($strFilter)."')";
echo "</br>running: ".$sql;
                    if (!$res = mysql_query($sql)) die( mysql_error() ); 
echo "</br>insert completed";
                }
echo "</br>moving to next";
        }
        //header("Location: gridDisplay_new.php?viewid=1" );
        //exit;                               

    }
?>
<form action="filterForm.php" id="filterForm" name="filterForm" method="POST">
<?php 

    $sql2 = "SELECT * FROM filterSetup order by filterID" ;
    $res2 = mysql_query($sql2);
    if (!$res2) die( mysql_error() );
?>
    <table>
        <?php
            while ($row2 = mysql_fetch_assoc($res2))
            {
        ?>
                <tr>
                    <td><?php echo $row2["filterField"]; ?></td>
                    <td>
                        <select name="operator<?php echo $row2["filterID"]; ?>">
                            <option value = "contains" <?php if ($row2["myOperator"]=="contains") echo " selected" ?>>contains</option>
                            <option value = "=" <?php if ($row2["myOperator"]=="=") echo " selected" ?>>=</option>
                            <option value = "!=" <?php if ($row2["myOperator"]=="!=") echo " selected" ?>>!=</option>
                            <option value = "<" <?php if ($row2["myOperator"]=="<") echo " selected" ?>><</option>
                            <option value = ">" <?php if ($row2["myOperator"]==">") echo " selected" ?>>></option>
                            <option value = "<=" <?php if ($row2["myOperator"]=="<=") echo " selected" ?>><=</option>
                            <option value = ">=" <?php if ($row2["myOperator"]==">=") echo " selected" ?>>=></option>
                        </select>
                    </td>
                    <td><input type="text" name="value<?php echo $row2['filterID']; ?>" value="<?php echo $row2["filterValue"] ?>" /></td>
                </tr>
        <?php
            }
        ?>
    </table>
    <input type="submit" value="Apply Changes" name="applyFilter" id="applyFilter" />
</form>
<button id="closeSlide">Close Filter Menu</button>

Open in new window


Here is the result when I submit:
top of while
id:1 operator:contains value:bronco
starting update
update ok
running: Insert into reportfilters (filterLine) values('Manufacturer_Dealer_Name like \'%bronco%\'')
insert completed
moving to next
Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in /home/uniqueda/public_html/xtime/filterForm.php on line 11
0
Comment
Question by:UniqueData
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 35

Accepted Solution

by:
Dan Craciun earned 500 total points
ID: 39973254
You're reusing the $res variable, which inside the loop will point to a new resource.

On line 25 give another name to the resource. $res1 or whatever strikes you fancy.
The same on line 37.

If you don't, then after the first loop pass, $res will point to the result of an INSERT, and not to the result of the original SELECT.

HTH,
Dan
0
 
LVL 7

Author Comment

by:UniqueData
ID: 39973399
oh my..of course it was something like that I missed.

thanks for your time
0
 
LVL 35

Expert Comment

by:Dan Craciun
ID: 39973403
Glad I could help!
0

Featured Post

NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this series, we will discuss common questions received as a database Solutions Engineer at Percona. In this role, we speak with a wide array of MySQL and MongoDB users responsible for both extremely large and complex environments to smaller singl…
Code that checks the QuickBooks schema table for non-updateable fields and then disables those controls on a form so users don't try to update them.
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

628 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question