If Profile Field Empty

[TheInsaneManiac]

I want to make a script not run if a profile field is empty, but can't seem to find a conditional for this. I don't want this script to run if my profile field is not filled in:
if($vbulletin->options['xbl_avatar_system_enable_product'] AND $vbulletin->options['xbl_avatar_system_display_navbar'])
{
$xblavatarfield = $vbulletin->options['xbl_avatar_system_userfield'];
eval('$xblavatarhead = "<td style=\"padding:1px\"><a href=\"member.php?".$vbulletin->session->vars[sessionurl]."u=".$vbulletin->userinfo[userid]."\"><img src=\"http://avatar.xboxlive.com/avatar/".$vbulletin->userinfo[$xblavatarfield]."/avatarpic-l.png\" border=\"0\" /></a></td>";');
}

[Dismounted]

You can access profile fields like this:
$vbulletin->userinfo['fieldX']

[TheInsaneManiac]

So if($vbulletin->userinfo['field254']) would mean that if it is filled in it would run the script and if it wasn't it wouldn't run the script?

[Gio~Logist]

if($vbulletin->userinfo['fieldx']){

// field x is filled

} else {

// field x is not filled

}

[TheInsaneManiac]

if($vbulletin->userinfo['fieldx']){

// field x is filled

} else {

// field x is not filled

}
Thanx mate!

[Gio~Logist]

:up:

[Dismounted]

Let's apply some vBulletin coding standards there ;).
if ($vbulletin->userinfo['fieldx'])
{
// field x is filled
}
else
{
// field x is not filled
}

[TheInsaneManiac]

Let's apply some vBulletin coding standards there ;).
if ($vbulletin->userinfo['fieldx'])
{
// field x is filled
}
else
{
// field x is not filled
}
I don't guess there is to prevent someone from using the same profile field as someone else is there?

[Dismounted]

The field ID is the same for all users for a particular field. Each user is assigned their own row in the userfield table, which is fetched along with all the other user data.

[TheInsaneManiac]

The field ID is the same for all users for a particular field. Each user is assigned their own row in the userfield table, which is fetched along with all the other user data.
So there is no way to detect if a field is the same as another?

[Dismounted]

What part of a field? To see if what User A entered is the same as anyone else?

[TheInsaneManiac]

What part of a field? To see if what User A entered is the same as anyone else?
Correct. I have a gamertag profile field and don't want anyone else choosing someone elses gamertag.

[Dismounted]

You would have to do a query.
$tagcheck = $vbulletin->db->query_first("
SELECT fieldX
FROM " . TABLE_PREFIX . "userfield
WHERE fieldX = " . $vbulletin->userinfo['fieldx'] . "
LIMIT 1
");

if (empty($tagcheck))
{
// tag is not used by anyone
}

[TheInsaneManiac]

Is it possible for it to do this when someone enters in a profile field?

[Dismounted]

As in AJAX?

[TheInsaneManiac]

no just check to see if someone has the same profile field as someone else after updating.

[Dismounted]

There should be a hook where you can do a check before the data is commited to the database. Probably userdata_presave.

[TheInsaneManiac]

There should be a hook where you can do a check before the data is commited to the database. Probably userdata_presave.
So I code a plugin with your script on the first page?

[Dismounted]

Yep. Be sure to make note of the variables that exist (i.e. $this->registry instead of $vbulletin, etc.).