new conditional tag: has_excerpt

[FekketCantenel]

Here is a short suggestion for a new conditional tag in query.php. Before this is added, or in case it never is, ​I've added a short help to the Conditional Tags documentation.

function has_excerpt () {
	global $post;
	if (empty($post->post_excerpt)) { return false; }
	else { return true; }
}

I know that this appears very simple, but PHP newbies (like myself) wouldn't think of it without help. The function it serves doesn't seem that obscure, so I hope it's worthy of inclusion.

[error]

Looks like a good idea for a conditional tag.

[rob1n]

Makes sense to me, I guess. +1.

[rob1n]

My bad, it's got no patch. I must be seeing things...

[markjaquith]

+1

Theme authors shouldn't have to know about empty()

[rob1n]

(In [5293]) has_excerpt() template tag. fixes #4177 for 2.3

[FekketCantenel]

Just curious, why is the patch code so different from what I wrote? It's in a different file, looks a bit different... I ask for future reference.

[markjaquith]

FekketCantenel,

For increased usefulness. Your code would only work with the current post. This function can take any post ID as a parameter. The return line is just simpler... skips the if/else logic block and just returns the opposite of the empty() bool result.

[FekketCantenel]

"Your code would only work with the current post. This function can take any post ID as a parameter."

Ahhhhhhhh, I see. So this way, you could write has_excerpt('1') (the post's ID) and find out if that post has an excerpt. It's a good thing you thought of that.

Thanks for the information.

[rob1n]

Also, this function was put into post-template.php because it is a template tag that deals with posts. query.php is usually reserved for functions that are directly related to WP_Query (is_page, is_home, etc.).