I’m developing a theme that’s dependent upon there being post thumbnails of a certain size for each post. But, if the client forgets to add a thumbnail or doesn’t have one for a post, I don’t want it to break the site’s layout.
I created a function called be_no_thumbnail($size). When you run that function (with an appropriate size) it will generate a blank image of that size.
This is designed to work with the image sizes defined in Settings > Media (thumbnail, small, medium, large). You’d need a different approach for custom image sizes as their dimensions aren’t stored in the same database fields.
Here’s the function:
And here’s how I use it:
Hi Bill,
I’ve been looking to achieve something like this. I use WordPress thumbs on my thesis site (so I can have 3 sizes of the same image), following your recommendation & tutorial.
How can I incorporate this code into Thesis so if an image isn’t attached it calls up a default image?
The above code should work in any theme, including Thesis. Have you tried it yet?
I’ve posted the function in custom-functions but not sure what I do with the second part, ie how to use it?
Let’s say you had a function you’re using to display post thumbnails on single pages:
add_action(‘thesis_hook_before_post’, ‘be_thumbnail_single’);
function be_thumbnail_single() {
if (is_single()) && has_post_thumbnail())
the_post_thumbnail(‘large’);
}
You would change it to incorporate the no thumbnail function.
if (is_single()):
if( has_post_thumbnail()) the_post_thumbnail(‘large’);
else be_no_thumbnail(‘large’);
endif;
Would it be easier to create the test for the img in the functions file so the Genesis_Image call in the templates doesn’t need to be messed with? Is that a bad idea?
I’m not exactly sure what you’re asking here. Do you mean to create a new function like be_get_thumbnail() that checks for a thumbnail, then serves up the thumbnail or default depending on what’s available? That’s also an approach that could work.