Style a table row if one of its column attributes is true - php

Question

I'm filling an HTML table with data from the following query:
$content_downloads = mysql_query( "SELECT
s.site, s.machine, d.projectid, d.directorySize, d.connectivityError,
d.blocked, d.blockedBy, d.blockedSince, d.errorString, d.dashboardTimeStamp
FROM rtcdb.site_machines s
LEFT JOIN rtcdb.downloadstatuses d
on (s.site = d.site and s.machine = d.machine)
where s.site in (select d2.site from rtcdb.downloadstatuses d2
where d2.dashboardTimeStamp > (SELECT DATE_ADD(max(dashboardTimeStamp),INTERVAL -1 DAY)
from rtcdb.downloadstatuses)) order by s.site, s.machine asc", $con) or die(mysql_error());
This query is going into an HTML table based on the following HTML/PHP:
<table>
<thead>
<tr>
<th>Site</th>
<th>Machine</th>
<th>Project ID</th>
<th>Folder Size</th>
<th>Error Description</th>
</tr>
</thead>
<tbody>
<?php
while ($row = mysql_fetch_assoc($content_downloads)) {
$error_string = "";
if ($row["connectivityError"] == true ) {
$error_string = "COULD NOT CONNECT: " . $row["errorString"];
}
elseif ($row["blocked"] == true ) {
$error_string = "BLOCKED BY LOCK OWNED BY: " . $row["blockedBy"] . " " . $row["blockedSince"];
}
echo '
<tr>
<td>'.$row["site"].'</td>
<td>'.$row["machine"].'</td>
<td>'.$row["projectid"].'</td>
<td>'.$row["directorySize"].'</td>
<td style = "text-align: left; color: red;">'.$error_string.'</td>
</tr> ';
}
?>
</tbody>
</table>
The error description column in this table rarely has contents. As you can see, when it does, a PHP conditional function (the if and ifelse functions) places a statement before the error description to make the description more understandable. One thing you may notice is that I am coloring the text of error descriptions red. The thing that I am struggling with that I need your help on is to selectively style an entire row with a background-color of yellow, when the error description cell in that row has a value. In other words, when the two conditionals I wrote are true, I would like to make the background-color of the row that includes that error description yellow.
It seems pretty simple, but I have tried various options and can't seem to figure it out. Any tips Stack Overflow?

Answer 1

Check if the error string is empty:
echo '
<tr' . (empty($error_string) ? '' : ' style="background-color:yellow;"') . '>
<td>'.$row["site"].'</td>
<td>'.$row["machine"].'</td>
<td>'.$row["projectid"].'</td>
<td>'.$row["directorySize"].'</td>
<td style = "text-align: left; color: red;">'.$error_string.'</td>
</tr> ';

Answer 2

What I would try is setting a class on the row of interest:
<tr class="highLight">
and then use CSS to set the background color of the cells in that row:
tr.highLight td {background-color: yellow; }
Set the class attribute is your error string has content.

Answer 3

Try this:
if($error_string != "")
{
echo '<tr class="error-row"';
}else{
echo '<tr>';
}
echo '<td>'.$row["site"].'</td>
<td>'.$row["machine"].'</td>
<td>'.$row["projectid"].'</td>
<td>'.$row["directorySize"].'</td>
<td style = "text-align: left; color: red;">'.$error_string.'</td>
</tr> ';
and add this to your stylesheet:
.error-row{background:yellow;}
if you want less code you can use the if shorthand too like this:
echo '<tr' . ($error_string == "" ? '' : 'class="error-row"') . '>
<td>'.$row["site"].'</td>
<td>'.$row["machine"].'</td>
<td>'.$row["projectid"].'</td>
<td>'.$row["directorySize"].'</td>
<td style = "text-align: left; color: red;">'.$error_string.'</td>
</tr> ';

Answer 4

Ok, I figured out what to do, and I apologize for not using jQuery or class attributes. I appreciate everyones help, and am being honest when I say that everyone's comments and answers helped me figure it out. Here's the solution:
if ($error_string != ""){
echo '
<tr style = "background-color: yellow;">
<td>'.$row["site"].'</td>
<td>'.$row["machine"].'</td>
<td>'.$row["projectid"].'</td>
<td>'.$row["directorySize"].'</td>
<td style = "text-align: left; color: red;">'.$error_string.'</td>
</tr> ';
}
else {
echo '
<tr>
<td>'.$row["site"].'</td>
<td>'.$row["machine"].'</td>
<td>'.$row["projectid"].'</td>
<td>'.$row["directorySize"].'</td>
<td style = "text-align: left; color: red;">'.$error_string.'</td>
</tr> ';
}
Thanks for everyone's help!