Custom Taxonomies conditional tags

Why not use <?php if (query_posts( array( 'people' => 'Tom Cruise', 'showposts' => -1 ) ) ); ?>

Thanks for the link to that article, btw. ??

Hi Esmi,

Thanks very much for the reply. Check out the other guides etc on that site, it’s really awesome.

What I really want is to have in single.php something like this…

if has_people('Tom Cruise')) {echo 'some text';}
else if has people('Another Actor'){ echo 'some different text';}

etc

So your code wouldn’t be able to do that… or can you think of a way to use what you have suggested to do the same thing?

Thanks ??

Would this work?

<?php
$temp_query = clone $wp_query; // preserve the native query

$actors = array(
	'Tom Cruise' => 'some text',
	'Fred Blogs' => 'some different text'
);

foreach($actors as $name=>$msg) {
	$test = DoThe Query($name,$post->ID);
	if($test == $name) {
		echo $msg;
		break 2;
	}
}

$wp_query = clone $temp_query; // resume the native query

function DoThe Query($actor,$pid) {
	$success = '';
	query_posts( array( 'people' => $actor, 'p' =>$pid ) ) ;
	if (have_posts()) $success = $actor;
	return $success;
}

?>

Assuming your taxonomy is person.

Add to your theme’s functions.php file:

function has_person( $person, $_post = null ) {
	if ( empty( $person ) )
		return false;

	if ( $_post )
		$_post = get_post( $_post );
	else
		$_post =& $GLOBALS['post'];

	if ( !$_post )
		return false;

	$r = is_object_in_term( $_post->ID, 'person', $person );

	if ( is_wp_error( $r ) )
		return false;

	return $r;
}

Call it up in your files like so:

<?php if ( has_person( 'tom-cruise' ) ) /* do something */ ?>

Oh nice! Must find an excuse to use that.

Esmi thanks for yr suggestion but tried greenshady’s solution first and worked a treat.

Thanks very much greenshady, works perfectly!

Can I use this to use different template for different tags?

Funny…Greenshady IS Justin Tadlock !

how about to check if it has tag or not? like has_tag function did.

i think i figured out the answer. i use justin function and edit some code that will do.

function has_product_tag( $product_tag, $_post = null ) {
	if ( !empty( $product_tag ) )
		return false;

	if ( $_post )
		$_post = get_post( $_post );
	else
		$_post =& $GLOBALS['post'];

	if ( !$_post )
		return false;

	$r = is_object_in_term( $_post->ID, 'product_tag', $product_tag );

	if ( is_wp_error( $r ) )
		return false;

	return $r;
}

<?php if(has_product_tag(null)) { ?>
// some code here
<?php } ?>

Thank you for everyone who contributed to this thread, it has really helped my understanding of taxonomies a great deal!

However, I’m stuck somewhere else but near by: I have a hierarchical taxonomy ‘page_categories’ (similar to post categories) and would like to use conditional if-statements to display different images in my header.
As I understand has_tags() will only work in the loop. I therefore would need something like ‘in_category’ or ‘is_tag’ .. I tried to modify Justin’s function, but I didn’t quite arrive where I wanted.

Any help would be greatly appreciated!

Thank you for the articles.
I have blog about reviews of game.
This is the URL
Will it any good for my blog?